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43 results about "Short range radar" patented technology

Short Range Radar (SRR) Automotive Short-Range Radar (SRR) are radar systems operating around a car when in motion to detect possible impacts with obstacles, such as other cars, walls, pedestrians, etc. so that safety measures may be triggered automatically, such as pre-tensioning of seat belts and inflating airbags.

Automotive auxiliary ladar sensor

A vehicle and ladar sensor assembly system is proposed which makes use of forward mounted long range ladar sensors and short range ladar sensors mounted in auxiliary lamps to identify obstacles and to identify potential collisions with the vehicle. A low cost assembly is developed which can be easily mounted within a body panel cutout of a vehicle, and which connects to the vehicle electrical and computer systems through the vehicle wiring harness. The vehicle has a digital processor which interprets 3D data received from the ladar sensor assembly, and which is in control of the vehicle subsystems for steering, braking, acceleration, and suspension. The digital processor onboard the vehicle makes use of the 3D data and the vehicle control subsystems to avoid collisions and steer a best path.
Owner:CONTINENTAL AUTONOMOUS MOBILITY US LLC

Radar based user interface

An apparatus and method for radar based gesture detection. The apparatus includes a processing element and a transmitter configured to transmit radar signals. The transmitter is coupled to the processing element. The apparatus further includes a plurality of receivers configured to receive radar signal reflections, where the plurality of receivers is coupled to the processing element. The transmitter and plurality of receivers are configured for short range radar and the processing element is configured to detect a hand gesture based on the radar signal reflections received by the plurality of receivers.
Owner:NVIDIA CORP

Multi-beam antenna with shared dielectric lens

InactiveUS7420525B2AntennasWaveguideMulti beam
An integrated multi-beam antenna with a shared dielectric lens is disclosed. The antenna is formed by positioning the feed apertures of a plurality of waveguide feeds at positions located on the surface of the shared dielectric lens. The angular direction and shape of radiation beams produced by the waveguide feeds are determined by the physical and dielectric characteristics of the lens, the location of feed apertures of the waveguide feeds on the surface of the lens, and the frequency of electromagnetic energy propagating in the waveguide feeds. The principles of the invention are applied to realize an inexpensive, integrated multi-feed antenna adapted to provide desired angular areas of coverage for both a long range and short range radar in an automotive radar safety system.
Owner:GM GLOBAL TECH OPERATIONS LLC

Ladar enabled impact mitigation system

A collision mitigation system is proposed which makes use of forward mounted long range ladar sensors and short range ladar sensors mounted in auxiliary lamps to identify obstacles and to predict unavoidable collisions therewith, and a duplex radio link in communication with secondary vehicles, and a number of external airbags deployable under the control of an airbag control unit, to reduce the forces of impact on the host vehicle, secondary vehicles, and bipeds and quadrupeds wandering into the roadway. A suspension modification system makes use of headlight mounted long range ladar sensors and short range ladar sensors mounted in auxiliary lamps to characterize the road surface, identify road hazards, and make adaptations to a number of active suspension components, each with the ability to absorb shock, elevate or lower the vehicle, and adjust the spring rate of the individual wheel suspensions.
Owner:CONTINENTAL AUTONOMOUS MOBILITY US LLC

Quick response perimeter intrusion detection sensor

An Ultra Wideband (UWB) short-range radar system is used for the detection of targets in clutter. Examples of targets on the ground include human walkers, crawlers and runners, and vehicles. The UWB sensor can also be used to detect small approaching boats in different levels of sea clutter or airborne targets like hang gliders. One of the primary differences between this device and other UWB radar sensors is the manner in which the bias on the threshold detector is set as well as the logic circuitry used to find targets in clutter while maintaining a low false alarm rate. The processing is designed to detect targets in varying degrees of clutter automatically. There may be no front panel controls other than an ON-OFF switch. The system is lightweight, low-cost, and can be easily installed in minutes.
Owner:ANRO ENG

Integrated radar apparatus and intergrated antenna apparatus

An embodiment of the present invention discloses a radar apparatus and an antenna apparatus, and more particularly, an integrated radar apparatus and an integrated antenna apparatus which make it possible to attain angle resolution with high definition, to decrease size and the number of devices, to integrate long and mid-range radar function and short range radar function.
Owner:HL KLEMOVE CORP

Small-sized low-power dissipation short-range radar that can arbitrarily change delay time between transmission and reception with high time resolution and method of controlling the same

In a configuration according to a short-range radar of the present invention and a method of controlling the same, the timing at which a variable-period pulse output from a variable-period pulse generator including a direct digital synthesizer (DDS) has shifted in level first since reception of a search instruction is used as a reference timing, so that a signal that shifts in level at the reference timing or a fixed lapse of time later than the reference timing is generated and output as a transmission trigger signal, and a signal that shifts in level at a timing delayed by half a period of the variable-period pulse or its integral multiple from the timing at which the transmission trigger signal is output is generated and output as a reception trigger signal. With this, by varying beforehand frequency data of the DDS based on the relationship between the frequency data and delay time between transmission and reception stored in a memory, it is possible to vary delay time between the transmission trigger signal and the reception trigger signal. It is thus possible to arbitrarily vary the delay time between transmission and reception at a high time resolution by using a simple configuration and low power dissipation.
Owner:ANRITSU CORP +1

Multi-beam antenna with shared dielectric lens

An integrated multi-beam antenna with a shared dielectric lens is disclosed. The antenna is formed by positioning the feed apertures of a plurality of waveguide feeds at positions located on the surface of the shared dielectric lens. The angular direction and shape of radiation beams produced by the waveguide feeds are determined by the physical and dielectric characteristics of the lens, the location of feed apertures of the waveguide feeds on the surface of the lens, and the frequency of electromagnetic energy propagating in the waveguide feeds. The principles of the invention are applied to realize an inexpensive, integrated multi-feed antenna adapted to provide desired angular areas of coverage for both a long range and short range radar in an automotive radar safety system.
Owner:GM GLOBAL TECH OPERATIONS LLC

Automatic shore-based short range radar tracking processing method and computer

The invention belongs to the technical field of shore-based short range small radar tracking, and provides a full-automatic radar tracking processing method. The method comprises the step of carrying out the statistics regularly to generate a dynamic clutter map so that a dynamic target can be detected, the step of carrying out the quick rough comparison according to the orientation partition and the distance segmentation, accurately calculating the space distance to carry out the fine comparison and combining a plurality of correlated points into a cluster point, the step of updating a stable track if the cluster point can be correlated with the stable track, the step of further judging whether the cluster joint can be correlated with a temporary track or not if not, the step of updating the temporary track if yes, and the step of storing all non-correlated points of the stable track and the temporary tack in a temporary list to be correlated with a temporary list in the next scanning period if not. The method is achieved in a computer, a radar signal is later processed by the computer instead of hardware circuits of radar, the number of the radar circuits for processing the signal on the radar is reduced, the size of the radar is reduced, and minimization and full automation of the radar are achieved.
Owner:MONITORING & CONTROL SYST ENG RES INST CHINESE PEOPLES LIBERATION ARMY AIR FORCE INST OF WARNING

Short range radar small in size and low in power consumption and controlling method thereof

A transmitter section radiates a short range wave to a space. A receiver section has a detector circuit composed of a branch circuit which receives a reflection wave of the short range wave radiated to the space by means of the transmitter section and branches in phase a signal of the reflection wave into first and second signals, a linear multiplier which linearly multiplies the first and second signals branched in phase by means of the branch circuit, and a low pass filter which samples a baseband component from an output signal from the linear multiplier. A signal processor section carries out an analyzing process of an object which exists in the space based on an output from the receiver section. A control section makes a predetermined control with respect to at least one of the transmitter section and the receiver section based on an analysis result from the signal processor section.
Owner:PANASONIC CORP +1

Radar device

A radar device has a long range radar sensor having a first transmission and receiving section for transmitting and receiving radio wave to a first detection range and a first signal processing section for detecting an object existing in the first detection range; a short range radar sensor having a second transmission and receiving section for transmitting and receiving a radio wave to a second detection range of which width is wider and of which distance is shorter than the first detection range and a second signal processing section for detecting an object existing in the second detection range; and a processing section for integrating information supplied from the first and second signal processing sections. And one of the long range radar sensor and the short range radar sensor stops a detection operation of the object to an overlapped range of both the detection ranges.
Owner:FUJITSU GENERAL LTD +1

Uwb short-range radar

A transmitting unit emits a short pulse wave which satisfies a predetermined spectrum mask from an antenna into space. A receiving unit receives a reflected wave produced by an object existing in space of the short pulse wave emitted by the transmitting unit. A signal processing unit analyzes the object based on an output signal from the receiving unit. The transmitting unit has a pulse generator which outputs pulse signals each having a predetermined width at a predetermined frequency, and a burst oscillator which receives the pulse signal output from the pulse generator and performs an oscillation operation for time corresponding to the width of the pulse signal to output the short pulse signal. A width and a cycle of the pulse signal and an oscillation frequency of the burst oscillator are set such that almost an entire main lobe of a spectrum of the short pulse wave falls within a range of 24.0 to 29.0 GHz in the predetermined spectrum mask, and that a radiation power density to an RR radiowave emission prohibited band held by the predetermined spectrum mask is lower than a peak radiation power density of the main lobe by not less than 20 dB.
Owner:ANRITSU CORP

Short Range Radar and Method of Controlling the Same

A pair pulse generator generates one pair of pulses including a first pulse having a predetermined width and a second pulse having a width equal to that of the first pulse and being behind from the first pulse by preset time each time a transmission designation signal is received. A burst oscillator performs an oscillation operation in a period in which one pair of pulses are input to output a signal having a predetermined carrier frequency as a first burst wave in synchronism with the first pulse and also output the signal of the predetermined carrier frequency as a second burst wave in synchronism with the second pulse, and stops the oscillation operation in a period in which one pair of pulses are not input. A transmitting unit emits the first burst wave into an exploration target space as a short pulse wave. A receiving unit receives a reflected wave and detects the second burst wave as a local signal. A control unit variably controls an interval between the first pulse and the second pulse.
Owner:ANRITSU CORP

Small-sized low-power dissipation short-range radar that can arbitrarily change delay time between transmission and reception with high time resolution and method of controlling the same

In a configuration according to a short-range radar of the present invention and a method of controlling the same, the timing at which a variable-period pulse output from a variable-period pulse generator including a direct digital synthesizer (DDS) has shifted in level first since reception of a search instruction is used as a reference timing, so that a signal that shifts in level at the reference timing or a fixed lapse of time later than the reference timing is generated and output as a transmission trigger signal, and a signal that shifts in level at a timing delayed by half a period of the variable-period pulse or its integral multiple from the timing at which the transmission trigger signal is output is generated and output as a reception trigger signal. With this, by varying beforehand frequency data of the DDS based on the relationship between the frequency data and delay time between transmission and reception stored in a memory, it is possible to vary delay time between the transmission trigger signal and the reception trigger signal. It is thus possible to arbitrarily vary the delay time between transmission and reception at a high time resolution by using a simple configuration and low power dissipation.
Owner:ANRITSU CORP +1

Short-range radar and control method thereof

A transmitting unit of a short-range radar includes a first pulse generating unit, a second pulse generating unit, an oscillator and a switch, and while complying with the spectrum mask specified for a UWB short-range radar, emits a predetermined short pulse wave not interfering with the RR prohibited band or the SRD band into the space. The first pulse generating unit outputs a first pulse having the width larger than the width of the short pulse wave in a predetermined period. The second pulse generating unit outputs a second pulse having the width corresponding to the width of the short pulse wave during the period when the first pulse generating unit outputs the first pulse. The oscillator oscillates only during the period when the first pulse generating unit outputs the first pulse, and the switch is turned on and passes the output signal from the oscillator only during the period when the second pulse generating unit outputs the second pulse, thereby to emit the output signal from the switch into the space as the predetermined short pulse wave.
Owner:PANASONIC CORP +1

Low cost short range radar

A low cost radar system that employs monopulse beamforming to detect objects in the road-way both in elevation and azimuth. In one non-limiting embodiment, a beamforming receiver architecture includes a first beamforming device and a plurality of antennas coupled to the first beamforming device, and a second beamforming device and a plurality of antennas coupled to the second beamforming device. The first and second beamforming devices are oriented 90° relative to each other so that the receive beams provided by the first beamforming device detect objects in azimuth and the receive beams provided by the second beamforming device detect objects in elevation. A first switch is provided to selectively couple the sum pattern signal from the first and second beamforming devices to one output line, and a second switch is provided to selectively couple the difference pattern signals from the first and second beamforming devices to another output line.
Owner:GM GLOBAL TECH OPERATIONS LLC

Short-range radar and control method thereof

A transmitting unit of a short-range radar includes a first pulse generating unit, a second pulse generating unit, an oscillator and a switch, and while complying with the spectrum mask specified for a UWB short-range radar, emits a predetermined short pulse wave not interfering with the RR prohibited band or the SRD band into the space. The first pulse generating unit outputs a first pulse having the width larger than the width of the short pulse wave in a predetermined period. The second pulse generating unit outputs a second pulse having the width corresponding to the width of the short pulse wave during the period when the first pulse generating unit outputs the first pulse. The oscillator oscillates only during the period when the first pulse generating unit outputs the first pulse, and the switch is turned on and passes the output signal from the oscillator only during the period when the second pulse generating unit outputs the second pulse, thereby to emit the output signal from the switch into the space as the predetermined short pulse wave.
Owner:PANASONIC CORP +1

Short-range radar system with variable pulse duration

A short-range radar system includes short-range radar sensor means and means (41) for HF-impulse generator for the sensor means. The means for HF-impulse generation are embodied for emitting impulses with adjustable pulse duration (51, 53).
Owner:ROBERT BOSCH GMBH

Vehicle danger warning system

The invention discloses a vehicle danger warning system. The vehicle danger warning system is mainly a short-range (Short Range Radar) K-wave-band millimeter wave radar sensor system with the quite-high cost performance; the monitoring distance is 50 m, the LFM+FSK modulation mode with the high complexity is adopted, the distance of transportation targets can be detected, and the vehicle danger warning system has the high distance measurement accuracy and the high velocity measurement accuracy, and has the functions of blind spot detection (BSD), lane changing assisting (LCA), emergency assisting (EAF), forward object traversing alarming (FCTA) and the like.
Owner:江门市蓬江区弘亿电子科技有限公司

Asynchronous positioning method based on single station dual frequency continuous wave radar

The invention belongs to the technical field of dual-frequency continuous wave radar positioning, and relates to an asynchronous positioning method based on single station dual frequency continuous wave radar. The method no longer transmits two continuous wave signals of different frequencies at the same time, but switches between three states to transmit two continuous wave singles of different frequencies, and the third state compensates for the phase disturbance caused by the target speed. Compared to the synchronous mode, this method has lower complexity and cost, and is suitable for mostcommercial products of short-range radars with a single oscillator structure. The simulation results show that the positioning accuracy of the method can reach the centimeter level.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

VTS (Virtual Terminal Service) system based on distributed radars

The invention relates to a VTS (Virtual Terminal Service) system based on distributed radars. The VTS system comprises an information transmission subsystem, as well as a plurality of distributed radar subsystems, a VHF (Very High Frequency) communication subsystem, an AIS (Automatic Identification System) subsystem, an environment subsystem and a comprehensive information processing and display subsystem in communication connection with the information transmission subsystem respectively; each distributed radar subsystem acquires, records and stores dynamic information of a waterway ship, and transmits the dynamic information to the comprehensive information processing and display subsystem via the information transmission subsystem; each distributed radar subsystem specifically comprises a cascade transmission module in communication connection with the information transmission subsystem, a plurality of short-range radars in communication connection with the cascade transmission module respectively, and a long-range radar in communication connection with the cascade transmission module. The VTS system meets the requirements of inland waterways having complex environment and high dynamic target resolution requirement for no blind area detection, can well adapt to management and navigational aid services of inland waterways, and ensures the integrity and the consistency.
Owner:上海神添实业有限公司

Low cost short range radar

A low cost radar system that employs monopulse beamforming to detect objects in the road-way both in elevation and azimuth. In one non-limiting embodiment, a beamforming receiver architecture includes a first beamforming device and a plurality of antennas coupled to the first beamforming device, and a second beamforming device and a plurality of antennas coupled to the second beamforming device. The first and second beamforming devices are oriented 90° relative to each other so that the receive beams provided by the first beamforming device detect objects in azimuth and the receive beams provided by the second beamforming device detect objects in elevation. A first switch is provided to selectively couple the sum pattern signal from the first and second beamforming devices to one output line, and a second switch is provided to selectively couple the difference pattern signals from the first and second beamforming devices to another output line.
Owner:GM GLOBAL TECH OPERATIONS LLC

Short-range radar system and target measurement method based on system

The invention relates to a short-range radar system and a target measurement method based on the system. The system comprises a signal generator used for generating emission signals, a transmitting antenna used for transmitting the emission signals, a first receiving antenna and a second receiving antenna which are used for receiving received signals, a first receiver and a second receiver which are used for demodulating the received signals and both generating one path of I signals and one path of Q signals for a signal processor, the signal processor used for processing the I signals and the Q signals to generate target parameters, sending the target parameters to a background computer and performing time sequence control on the signal generator, and the background computer used for processing the target parameters to obtain a target measurement result. Each receiving antenna adopts a double-channel receiving mode, so that the two receiving antennas can form two paths of Q signals and I signals, and therefore, the distance and angle of a target can be accurately measured. The short-range radar system has the advantages of simple structure and low cost.
Owner:ANHUI SUN CREATE ELECTRONICS
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