118results about How to "Improve surveying and mapping efficiency" patented technology

The invention discloses a computer surveying instrument for geological engineering construction. The computer surveying instrument comprises telescopic supporting feet, inserting holes, a locking screw I, a connecting seat, a fixing seat, a ball body, an upper dustproof layer, a mounting seat, an upper connecting head, a locking screw II, a pressing pad, a sliding block, a screw rod, a knob, an end cover, a lower dustproof layer, a lower connecting head, a threaded hole, external threads, a fixing sleeve, a connecting rod and a counterweight ball. The computer surveying instrument is reasonable and simple in structure, low in production cost, convenient to install and complete in function, wherein cone bodies are arranged at the bottoms of the telescopic supporting feet, and the stabilityand reliability of the support of the telescopic supporting feet are improved; according to the computer surveying instrument, the mounting seat on the upper side of the ball body is automatically adjusted to be in a horizontal state through the action of gravity; when the counterweight ball is in a static state, the knob is tightened to drive the sliding block to drive the pressing pad to press the ball body so that the ball body cannot rotate; and then an surveying instrument body can be directly mounted on the mounting seat, so that the mounting precision and efficiency are improved.

The invention provides an underwater high-resolution side-looking acoustic imaging system. The system comprises a transmitting array, a receiving array and a receiver, wherein the receiver comprises a signal conditioning and acquisition functional module, a data transmission module and a data processing module, the signal conditioning and acquisition functional module is used for filtering and amplifying underwater acoustic signals and converting analog signals into digital signals, the data processing module also comprises a memory module, an image reconstruction module, a movement error estimation and compensation processing module and an image display module. The system is characterized in that: the transmitting array is a transmitting array group which consists of two transmitting arrays, and is used for transmitting acoustic signals with different frequency bands, and each transmitting array is driven by a transmitter. The invention also puts forward a method for utilizing the transmitting array group to carry out underwater high-resolution side-looking acoustic imaging. The invention has the advantages that: the limitation of the length of a plurality of sub-arrays of a sonar array on the moving speed is reduced, and thereby the surveying efficiency of the imaging system is increased.

The invention relates to multi-wave packet wide cover undersea topography landform detecting device. It includes above and under water extensions, cable. The above water extension is made up of embedding type integration industrial personal computer, signal processing, collecting, pre-processing, and adjusting devices, storage. The under water extension is made up of signal generating and emitting devices, multi channel emitting and receiving transducer arrays, signal amplifying device. The invention adopts multi channel emitting and receiving transducer array and advanced signal processing technique to gain wide cover undersea topography and landform information to increase marine charting efficiency and precision. Thus it can be widely used in water traffic transportation safety guard, laying submarine cable, and sinks salvaging etc.

The invention discloses a digital terrain modeling method based on multi-source unmanned aerial vehicle remote sensing data fusion. The method comprises the steps of: acquiring aerial images, GPS data, laser range finder data and unmanned aerial vehicle micro electro mechanical system attitude data; obtaining post-processing dynamic GPS data; correcting the data of the laser range finder accordingto the attitude data of the micro-electromechanical system of the unmanned aerial vehicle; synchronous processing with post-processing dynamic GPS data is completed based on the time sequence; obtaining a laser ranging value and PPK-GPS three-dimensional coordinate value point source terrain matrix, an aerial image surface source digital elevation model and a digital elevation model terrain matrix; respectively carrying out offset, optimization and dimension raising processing on the digital elevation model terrain matrix, sequentially obtaining a digital elevation model difference matrix anda terrain elevation matrix, and carrying out Kriging spatial interpolation on the terrain elevation matrix to generate a digital terrain model; according to the method, the advantages of large surveying and mapping area of the surface source DTM and high absolute precision of the laser range finder and the GPS data point source DTM of the aerial image processing technology are combined, so that the surveying and mapping efficiency and the modeling precision are improved.

The invention discloses a method for extracting a feature point of a building based on oblique photogrammetry, a device and a storage medium. The method comprises the following steps: constructing a real three-dimensional model of an appointed building according to multiple oblique images; selecting three non-collinear points from external vertical walls of the real three-dimensional model, thereby calculating optimal planes corresponding to the external vertical walls; calculating an intersecting line of two adjacent external vertical walls according to the optimal planes corresponding to thetwo adjacent external vertical walls in the real three-dimensional model; extracting an intersection point of the intersecting line and the optimal planes of other external vertical walls in the realthree-dimensional model and taking the intersection point as the feature point of the real three-dimensional model. According to the method, the feature point of the building can be accurately extracted according to multiple oblique images, so that the surveying and mapping accuracy and efficiency of the building are increased.

The invention relates to the field of surveying and mapping all-in-one (AIO) machine, and provides a surveying and mapping all-in-one (AIO) machine compensation device, compensation system, and compensation method. The compensation device is externally connected to a surveying and mapping AIO machine. The surveying and mapping AIO machine comprises a centering rod and a body which is used to receive the satellite signals to carry out positioning or related functions. The AIO compensation device also comprises a sensor, which is arranged on the centering rod and is used to measure the gesture angle of the centering rod; and a compensation module; wherein the compensation module is connected to a surveying and mapping AIO machine, generates a compensation coordinate according to the gesture angle, and sends the compensation coordinate to the surveying and mapping AIO machine; or the compensation module is connected to a correlated surveying and mapping module, generates a compensation coordinate according to the gesture angle, and sends the compensation coordinate to the surveying and mapping module. The provided compensation device, compensation system and compensation method can greatly reduce the measurement error on inclination angle due to the shaking of hands, improve the usage experience for surveying and mapping personnel, and further improve the efficiency of surveying and mapping. The coordinate can be instantly obtained through the provided device, system, and method.

The invention discloses an aircraft-based mapping method, device and system. The aircraft-based mapping method comprises the steps of acquiring an image of an aircraft during flight, and displaying areference mark and an image for alignment in an image display interface; receiving trigger operation input by a user; recording a mark point in the image according to the trigger operation; and acquiring position information of an actual mapping point corresponding to the mark point according to a mapping relation between the image and the true position. According to the aircraft-based mapping method disclosed by the embodiment of the invention, the problem of low mapping efficiency of a mapping person can be solved compared with artificial dot mapping; and compared with traditional unmanned aerial vehicle mapping, the mapping control process is simplified, the mapping efficiency is improved, and the corresponding high-accuracy position information can be mapped within a short time.

The invention relates to a self-starting reference station for GPS real-time dynamic measurement and a method for realizing GPS real-time dynamic measurement on the basis of the self-starting reference station. The self-starting reference station comprises a processor module, a GPS signal receiving module, a power supply module and an input and output module. After the reference station starts, single-point positioning is realized and a reference three-dimensional coordinate is acquired according to a GPS signal received by the GPS signal receiving module; a reference point signal is sent according to the acquired reference three-dimensional coordinate; and thus, the self-starting is accomplished. When the self-starting reference station and the method for performing GPS real-time dynamic measurement by using the self-starting reference station are used, the work such as reference station starting by connecting a record book to the reference station, centering, leveling and measuring apparatus height is avoided, the application of the reference station is simpler, errors generated in manual operation are avoided, the accuracy of the GPS real-time dynamic measurement is ensured, and the measurement efficiency is improved.

The invention discloses an unmanned plane set surveying and mapping method based on AGV matrix. A surveying and mapping unmanned plane set is mainly an AGV matrix. A central unmanned plane controls anauxiliary unmanned plane to conduct surveying and mapping for many times within a set AGV matrix. The central unmanned plane transmits surveying and mapping data obtained by integration to a remote client through a main controller. Through multimetering integration of the surveying and mapping unmanned plane set, a whole surveying and mapping map is obtained. The whole measurement range AGV matrix is set to be a coordinate system with the central unmanned plane as the central point, and then the coordinate system is divided into four coordinate blocks according to four auxiliary unmanned planes; then, through a calculation module of a main control mechanism, a turning point is arranged every 10 centimeters, and a virtual coordinate matrix is built; and the auxiliary unmanned planes are made into a virtual coordinate matrix through the central unmanned plane and manual operation to define landmark value and row and column of each group for surveying and mapping respectively. By the method of the invention, efficiency of surveying and mapping is effectively enhanced.

The invention discloses a spectrum situation cognition surveying and mapping device and method based on an unmanned aerial vehicle platform. The device comprises an unmanned aerial vehicle platform unit, a frequency spectrum situation acquisition unit, a communication and telemetry integrated transmission unit and a frequency spectrum data cognition unit. The unmanned aerial vehicle platform unitcomprises a GPS receiving module, a flight control module and an image module, and the frequency spectrum situation acquisition unit is composed of an airborne frequency spectrum receiver and an omnidirectional antenna; the remote communication integrated transmission unit is composed of a microcomputer and an airborne data link terminal. The spectrum data cognition unit comprises a ground receiving module, a brain module and a remote control module. The unmanned aerial vehicle platform unit, the frequency spectrum situation acquisition unit and the telemetry and telemetry integrated transmission unit form an aerial unmanned aerial vehicle part of the device, and the frequency spectrum data cognition unit is a ground part of the device. The GPS receiving module, the flight control module,the image module and the spectrum situation acquisition unit are connected with the remote communication integrated transmission unit, and the ground receiving module is connected with the brain module.

The invention provides an ad-hoc network marine environment multi-parameter measurement method. A plurality of unmanned platforms are used for carrying marine environment measurement sensors, and a navigation, surveying and mapping integrated system is used in cooperation to realize networking measurement. The navigation, surveying and mapping integrated system runs in a shore-based or mother shipoperation management center and controls and coordinates the plurality of measurement sensors to work. The measurement sensors comprise a multi-beam echo sounder and an acoustic Doppler velocity profiler, and provides marine environment data acquisition. The unmanned platform is formed by integrating a surveying and mapping type hull, an autonomous obstacle avoidance unit and an intelligent control unit, and is used as a mobile platform for measuring networking measurement of the measurement sensors. The navigation and surveying and mapping integrated system is formed by integrating a collaborative management software module, a surveying and mapping operation module and a multi-source multi-platform surveying and mapping data real-time splicing module, and networking operation and data post-processing are realized. The networking measurement method has the characteristics of high measurement efficiency, high platform and sensor compatibility and the high multi-instrument networking observation and multi-source data fusion level.

The invention discloses a control system and a control method for the cooperative surveying and mapping of an unmanned ship and an unmanned aerial vehicle. The control system comprises an unmanned ship cooperative surveying and mapping device in the unmanned ship and an unmanned aerial vehicle cooperative surveying and mapping device in the unmanned aerial vehicle which performs mutual communication cooperative surveying and mapping. The automatic surveying and mapping of shoal sea areas with many islands and reefs are realized; the surveying and mapping task of a sea area which cannot be reached by a large surveying and mapping ship can be completed with high efficiency and low cost, meanwhile, the submarine topography can be surveyed and mapped, the surveying and mapping of an upper portion of an island reef can be achieved, and the surveying and mapping task of a target sea area is achieved more completely. The invention belongs to the technical field of unmanned ship and unmanned aerial vehicle cooperative application.

The invention discloses a real-time geographic surveying and mapping acquisition system, and relates to the technical field of geographic surveying and mapping. The system comprises a spatial mobile terminal used for collecting and sending current surveying and mapping information; a cloud server used for transferring surveying and mapping information; a processing terminal used for receiving andprocessing surveying and mapping information; wherein the processing terminal comprises a storage module used for storing and calling information in the processing terminal; and a processing module used for selecting a to-be-mapped area, drawing and forming a DEM model according to the mapping information received by the spatial mobile terminal and storing the DEM model in the storage module. Thespatial mobile terminal scans and maps the mapping subareas; mapping information is sent to the processing terminal through the cloud server; after receiving the surveying and mapping information, theprocessing terminal integrates and draws the surveying and mapping information to form a complete DEM model, a worker does not need to enter a surveying and mapping site, and performs surveying and mapping operation in real time in a manner that a plurality of spatial mobile terminals are distributed on the site, so that the surveying and mapping efficiency is improved, and the DEM model generation is rapidly performed on a wide area.

The invention designs a synthetic aperture sonar imaging method and a system based on multidimensional waveform encoding, and the method is based on multidimensional waveform encoding of a time domain, a space domain and a frequency domain of an azimuth. The method comprises: a step 101) a sending array sends multiple central angles and narrow wave beam signals with different carrier frequencies via phased strategies, the sent pulse time width is divided into multiple sub-pulses, and the sent wave beams are utilized to form strategy control wave beam indications in different sub-pulse periods of time so that the strategy control wave beam indications irradiate different sub-surveying-and-mapping bands; and a step 102) Pulse compression and azimuth FFT are respectively performed on multi-aperture data of each surveying-and-mapping band received by a multichannel receiving array, then azimuth spatial filtering is performed according to an ambiguity-resolving mode, and then focusing imaging is performed by adopting an imaging algorithm. To sum up, the technical scheme adopts a spatial diversity technology, and more azimuth spatial samplings can be obtained in one pulse repetition period so that surveying-and-mapping efficiency is enhanced. The synthetic aperture sonar imaging method and the system are mainly applied to the field of underwater acoustic imaging.

The invention discloses a high-speed railway line surveying and mapping method which is as follows: correcting a detection value of a three-axis acceleration sensor into an actual acceleration value of a high-speed railway vehicle; using a GNSS positioning system for positioning the high-speed railway vehicle and determining whether a new constructed line is surveyed and mapped; calculating the included angle between the high-speed railway vehicle and the horizontal plane; determining the driving position of the high-speed railway vehicle; surveying and mapping a high-speed railway vehicle track; and calculating line climbing height to complete line surveying and mapping. The high-speed railway line surveying and mapping method overcomes the traditional disadvantages of need of a specialized surveying and mapping vehicle for professional surveying and mapping of a new constructed high-speed railway line, the surveying and mapping is performed during running, a series of sensors are used for detection, data is calculated, high-speed railway design standards in China are combined, the new constructed high-speed railway line can be successfully surveyed and mapped in the driving processing of the high-speed railway vehicle in the new constructed high-speed railway track, and the high-speed railway line surveying and mapping method has the advantages of high surveying and mapping efficiency, low cost, and few occupied resources.

The invention belongs to the technical field of unmanned boats and particularly discloses an amphibious unmanned surveying and mapping boat. The amphibious unmanned surveying and mapping boat comprises a boat body, wherein the boat body is provided with a control cabinet; a water-jet propeller is arranged at the tail of the boat body; a front wheel system and a rear wheel system are arranged at the bottom of the boat body; a sonar is arranged at the front end of the bottom surface of the boat body; the front wheel system comprises a front wheel support; one end of the front wheel support is rotationally connected with the bottom of the boat body; front rollers are rotationally connected to two sides of the other end of the front wheel support; the rear wheel system comprises a rear wheel support; one end of the rear wheel support is rotationally connected with the bottom of the boat body; rear rollers are rotationally connected to two sides of the other end of the rear wheel support; hydraulic telescopic cylinders are hinged to the front wheel support and the rear wheel support; the bottoms of the hydraulic telescopic oil cylinders are rotationally connected with the bottom surfaceof the boat body; a front wheel system recovering cavity matched with the front wheel system is formed in the front end of the bottom surface of the boat body; a rear wheel system recovering cavity matched with the rear wheel system is formed in the rear end of the bottom surface of the boat body. The amphibious unmanned surveying and mapping boat is simple in structure and reasonable in design,and can finish the marine surveying and mapping task under the condition of no manual intervention.

The invention discloses a method, a device and a medium for building facade mapping on a large scale topographic map of an unmanned aerial vehicle. The method comprises the following steps: constructing a real three-dimensional model of a designated building based on a multi-view tilt image; selecting two points from adjacent facades in the real three-dimensional model, and projecting the two points onto a preset measuring projection surface to obtain the projection points of the two points selected from the adjacent facades on a projection plane; calculating the projection lines of the facades and the projection intersection points of the adjacent facades according to the projection points corresponding to the same fa ade; and connecting the projection lines and the projection intersection points according to the topological relationship between the projection lines and the projection intersection points to obtain the outline of the designated building. Through adoption of the method,the outlines of buildings can be accurately extracted according to multi-view tilt images, and the surveying and mapping accuracy and efficiency of buildings are improved.

The invention belongs to the technical field of surveying and mapping, and provides a surveying and mapping method and system and a terminal device. In an embodiment, positions of boundary points of atarget parcel of land selected by a user are acquired through surveying and mapping by an RTK positioning bar so as to finish surveying and mapping of the target parcel of land. Surveying and mappingdata can be inputted in real time in a surveying and mapping process, position information of the target parcel of land is obtained, and the surveying and mapping precision and efficiency are increased.

The invention provides a site leveling method and system. The site leveling method comprises the following steps: a multi-spectral image of a region to be measured is obtained by positioning the region to be measured and performing data acquisition through a UAV, and radiation correction and partitioning preprocessing are carried out; acquired image data, as well as POS data and image control data are processed to obtain point cloud data; the point cloud data and design height are uploaded to a data processing terminal; and the three-dimensional plane position of a site in the region to be measured can be obtained by the data processing terminal according to the data. The invention can display an altitude difference from the plane at any position in the field in real time, high efficiency and intuition are achieved, the workload is greatly reduced and the surveying and mapping efficiency is improved.

The invention discloses a surveying and mapping collaborative operation method, which belongs to the technical field of surveying and mapping. The surveying and mapping collaborative operation methodcomprises the following steps that: a server side receives item information and generates an item; the server side utilizes a grid line to segment a whole surveying and mapping region and carries outstatistics the amount of grids contained in each surveying and mapping region; the server side receives an item starting instruction sent from an administrator; a surveying and mapping terminal obtains the item information, and enables surveying and mapping task information to be related to an operation space; the surveying and mapping terminal uploads surveying and mapping data in the operation space to the server side; after the server side receives the surveying and mapping data, the surveying and mapping task information is updated; and the server side carries out statistics on the amountof grids which finish surveying and mapping by each surveying and mapping person in real time, and sorts each surveying and mapping person. By use of the surveying and mapping collaborative operationmethod, the real-time sharing of multi-member collaborative surveying and mapping and each group of surveying and mapping data is realized, the situations of surveying missing, repeated surveying andwrong surveying are effectively avoided, an item progress and a surveying and mapping operation are completely controllable, and surveying and mapping efficiency is greatly improved.

The invention discloses a datamation plotting method applied to a planar workpiece. The method involves a conventional XY platform, a camera control PC and a software. The XY platform drives a camera to perform equidistant stepping displacement, picks up and samples images of corresponding local parts of a parent part and sends sample pictures together with XY coordinate parameters corresponding to image pickup-sampling stages into the PC for storage so that the shape of the parent part is divided into a plurality of local orthogonal projection sample pictures; the PC orderly restores and arrays the sample pictures on the screen of the PC according to the XY coordinate parameters and splices again a whole orthogonal projection picture for the parent part; and by utilizing the picture processing software of the PC, a plotting line graph of the parent part of the workpiece is formed by employing a person to carry out outlining, tidying and smoothly connecting in the orthogonal projection spliced picture of the parent part so that a foundation is laid for subsequent scale and digitalized workpiece processing. The method has the advantages of simple involved apparatuses, convenient operation and use, high measurement accuracy, strong adaptability, low cost, etc.

The invention discloses a surveying and mapping method based on municipal engineering. The method is used for solving the problems that a traditional surveying and mapping method is complex, unfavorable for municipal engineering surveying and mapping requirements, inconvenient in surveying and mapping and low in surveying and mapping precision. The surveying and mapping method has the following beneficial effects that an unmanned aerial vehicle, an Internet of Things terminal and a satellite platform are used for solving the problems that the traditional surveying and mapping method is complexin step and needs a large number of staff surveying and mapping personnel to carry out hard surveying and mapping without resistance to wind and rain, meanwhile, the unmanned aerial vehicle, the Internet of Things terminal and the satellite platform can work uninterruptedly for 24 hours, surveying and mapping time is shortened, surveying and mapping efficiency is improved, and meanwhile, the problem that the surveying and mapping process of surveying and mapping personnel is tedious is solved; by converting a two-dimensional surveying and mapping graph into a three-dimensional surveying and mapping graph, information of constructors is more convenient to obtain, and laymen can also visually know planning of municipal engineering through a three-dimensional model; and by positioning the Internet of Things terminal, auxiliary positioning can be performed through the positioning coordinates of the Internet of Things terminal during surveying and mapping, and the problem of poor surveyingand mapping precision is solved.

The invention relates to a building surveying and mapping method and system based on unmanned aerial vehicle remote sensing, and belongs to the field of building surveying and mapping, and the method comprises the steps: obtaining the building information of a target area range where a current to-be-surveyed building is located, the building information being the contour dimension information of the building and the geographic position of the building; building a building space model diagram based on the building information of the target area range; calculating a projection area of each time point according to the building space model graph to obtain a first shadow area; calculating the projection area of the building to be mapped based on the first shadow area to obtain a second shadow area; and selecting an optimal surveying and mapping time period of each area of the building to be surveyed and mapped according to the second shadow area. According to the method, on one hand, the surveying and mapping efficiency can be effectively improved, identification can be carried out according to the wall facilities on the building, when the wall facilities are smooth glass surfaces, the surveying and mapping points can be effectively selected, and the surveying and mapping accuracy is guaranteed.

The invention discloses a total station scanning all-in-one instrument based on a three-dimensional laser surveying and mapping technology and a measuring method. The total station scanning all-in-one instrument comprises a central processing unit, a laser ranging module, a motor and control module, a control module, an aiming module, a power supply module, a shell and an external control equipment terminal. The positioning function of a three-dimensional laser scanner is realized by utilizing the free station setting principle of the total station, and a point cloud coordinate system obtained by scanning after positioning is directly a tunnel geodetic coordinate system; the invention designs a total station scanning all-in-one instrument which can achieve a self-positioning function by using two known coordinate control points and integrates a total station and a scanner, and provides a tunnel surveying and mapping method based on the instrument, the method omits the processes of target arrangement measurement, point cloud coordinate system transformation and the like, the operation is simple, and the surveying and mapping time can be shortened while personnel allocation is reduced.

The invention discloses a remote sensing surveying and mapping unmanned aerial vehicle with high safety, which comprises a vehicle body, wings are arranged on the two sides of the vehicle body, a front propeller is arranged in the front of the vehicle body, and a tail vane is arranged at the tail of the vehicle body; wherein a fixed rod parallel to the aircraft body is symmetrically fixed in each of the two wings, vertical propellers are rotatably arranged at the two ends of each fixed rod, and each vertical propeller can be driven by a vertical motor fixed in the corresponding fixed rod to rotate; a plurality of arc-shaped protection blocking pieces are distributed at the bottom of the vertical propeller in the circumferential direction of the vertical propeller, the protection blocking pieces are connected with the fixing rod through protection rods, and the protection rods can adjust the distance between the protection blocking pieces and the center of the vertical propeller; compared with the prior art, the unmanned aerial vehicle can be in a vertical lifting mode and a fixed wing mode and is good in maneuverability, high in surveying and mapping efficiency and large in activity range. And the protection blocking pieces can be opened and closed, a protection net is formed between the protection blocking pieces and the protection ropes, safety is high when the device is close to the ground, and air resistance is small when the unmanned aerial vehicle is high.

The invention relates to the field of hull measurement, and discloses a hull measurement auxiliary tooling, the hull measurement auxiliary tooling comprises a measuring body and a straight ruler portion, a right angle portion, a clamping groove portion, a first angle measurement portion and a second angle measurement portion which are disposed on the measuring body; the straight ruler portion is aruler edge arranged on the measuring body, the surface of the ruler edge is provided with a scale for measuring the length, the right angle portion is an L-shaped right angle formed by two vertical straight edges, the surface of one of the straight edges of the right angle portion is provided with a scale for measuring the length, the clamping groove portion is a groove formed on the measuring body, the groove comprises two mutually-parallel side edges, and a bottom edge connecting the two side edges and perpendicular to the side edges, the first angle measurement portion is in a semicircularshape, the second first angle measurement portion is in a 3 / 4 circular shape, and the surfaces of the first angle measurement portion and the second angle measurement portion are each provided with aretroreflective sheet, and the measuring body is provided with a circular opening. The hull measurement auxiliary tooling has the beneficial effects that a plurality of measurement functions are integrated, a point to be measured can be identified, the point to be measured is reflected to a total station, the measurement efficiency is high, and the hull measurement auxiliary tooling is convenientto carry.

The invention is applicable to the field of surface surveying and mapping, and provides a surveying and mapping instrument, a surveying and mapping method and device, a terminal device and a storage medium, wherein the surveying and mapping instrument comprises a camera; and a composite frame on which the camera is installed and which comprises a machine body, an inner machine body frame and an outer machine body frame, wherein the inner machine body frame is used for driving the camera to rotate in a pitching direction, and the outer machine body frame is used for driving the camera to rotatein a transverse rolling direction so as to achieve the two-dimensional scanning imaging of the ground surface. The surveying and mapping instrument can provide a working mode based on two-dimensionalscanning, so that the large-base-height-ratio inclined wide-width imaging in a single flight strip can be achieved, namely, the large-inclination, wide-width, efficient and high-precision surveying and mapping in the single flight strip are achieved by combining the flight direction revisit and the large-angle whisk-broom imaging in the direction perpendicular to the flight direction, and accordingly the aerial surveying and mapping efficiency and precision are both improved.

The invention discloses a small-sized unmanned aerial vehicle-mounted millimeter wave interference synthetic aperture mapping radar, including the following modules: a servo device, a first antenna, a second antenna, a first radio frequency front end, a second radio frequency front end, a channel extension, a master control device, a combined navigator and a power supply device. The small-sized unmanned aerial vehicle-mounted millimeter wave interference synthetic aperture mapping radar adopts single-transmitting double-receiving antennas, performs synthetic aperture imaging on mapping areas at the same time, and uses signals phases in two images to interfere, so as to obtain height dimension information, thereby obtaining a three-dimensional image.