46 results about "Wind profiler" patented technology

The invention involves a method comprising the steps ofproviding (S3) a wind data set (3) including wind data of a plurality of positions,receiving (S4) data for a predicted airplane trajectory (311),providing (S5), based on the wind data set (3), a set of wind data elements (302), each including data concerning wind at a position along the predicted airplane trajectory (311),repeating steps of selecting a subset of wind data elements (302S), creating a wind profile (303), and comparing the wind profile (303) to the set of wind data elements (302), andselecting (S10) to be sent to a subscriber (2, 4) a subset of wind data elements (302S) based at least partly on which a wind profile (303) was created corresponding to the largest extent to the set of wind data elements (302).

A neural network process for improving wind retrievals from wind profiler measurements is described. In this invention, a neural network is trained to retrieve (missing or incomplete) upper level winds from ground based wind profiler measurements. Radiosonde measurements in conjunction with wind profiler ground measurements for specific geographical locations are used as training sets for the neural network. The idea is to retrieve timely and spatially continuous upper level wind information from (fragmented or incomplete) wind profiler measurements.

The invention provides a processing method and a processing device for a wind profile radar echo signal. The method comprises the following steps: acquiring the wind profile radar echo signal of whichgain is amplified through wind profile radar echo signal processing, wherein the wind profile radar echo signal comprises a meteorological signal and a noise signal; obtaining power of a signal unitaccording to the noise signal in the wind profile radar echo signal; and according to the meteorological signal and the power of the signal unit, obtaining power spectrum distribution of the meteorological signal. The processing method and the processing device for the wind profile radar echo signal, provided by the invention, can accurately describe signal intensity detected by a wind profile radar system, and enable the signal intensity detected by the wind profile radar systems of different models and / or different detection modes to have a consistent processing result.

The invention discloses a wind profile radar rainfall and non-rainfall adaptive detection system and method. The system comprises system control module, a signal processing module, a digital intermediate frequency receiver plate, an industrial control computer, a data terminal computer and a data processing module. The system control module controls the atmosphere wind field detection process. The digital intermediate frequency receiver plate receives a radio echo signal and obtains domain signals in digital processing. The signal processing module processed the domain signals into atmosphere wind field power spectrum signals. The data processing module processes and analyzes the atmosphere wind field power spectrum signals and automatically configures corresponding detection parameters. The established adaptive detection system automatically determines whether there is rainfall or not and configures corresponding detection parameters in the detection process through a wind profile radar, so that the adaptive detection of the atmosphere wind field in rainfall or non-rainfall weather is achieved, the atmosphere wind field information under different weather conditions can be accurately measured, and better application in meteorological research and weather forecast is achieved.

The invention discloses a data processing method for wind profile radar, comprising: processing the power spectrum data of each height layer in each direction with a multi-peak spectrum algorithm and a single-peak spectrum algorithm; Judging the symmetry of the spectral peaks obtained under the multi-peak spectrum algorithm and the single-peak spectrum algorithm for the same height layer in the north-south direction; The height continuity of the spectral peaks obtained under the algorithm is judged; respectively judge whether the spectral peaks obtained under the multi-peak spectral algorithm and the single-peak spectral algorithm are credible spectral peaks for each height layer in each direction; The credible spectral peaks obtained under the multi-peak spectral algorithm at the same altitude replace the unreliable spectral peaks obtained under the single-peak spectral algorithm. The invention effectively fills the gap existing in the single-peak spectrum algorithm, thereby improving the detection accuracy of low-altitude wind.

The present invention relates to a power supply system and method for a boundary layer wind profile radar. The system includes: a photovoltaic power supply unit for collecting and storing solar energy, converting solar energy into electricity, and sending electricity information to a power monitoring unit in real time; The power monitoring unit is used to receive the power information and send the power information to the main controller; the main controller is used to receive the power information sent by the power monitoring unit, and compare the power value corresponding to the power information with the starting power value of the radar For comparison, when the start-up power value of the radar is reached, a start-up control signal is sent to the power control unit; the power control unit is used to control the photovoltaic power supply unit to supply power to the radar. The entire power supply system of the present invention enables the radar to still work stably and normally without mains power supply or diesel engine power supply, and expands the application range of the boundary layer wind profile radar; the use of photovoltaic power supply weakens the damage of the radar power supply system to the surrounding environment , will not produce pollution sources.

The invention relates to wind profile radar. The invention discloses a wind profile radar wind speed determination method. The wind profile radar wind speed determination method of the invention comprises the steps of: a. receiving an echo signal and processing the echo signal to obtain an intermediate frequency signal; b. performing data sampling for the intermediate frequency signal; c. performing Hamming window weighted approach for the sampling signal; d. performing quick Fourier transform for the weighted signal; e. performing batten function interpolation for the signal after Fourier transform and finding the frequency spectrum amplitude maximum value f2; and f. calculating the average wind velocity Vr according to the following equation shown in the description, wherein f1 is the slip frequency between the emitted signal and the local oscillator frequency; Lamda is the wave length of the emitted signal; and f2-f1=Delta f is doppler frequency shift. The wind profile radar wind speed determination method of the invention enables the frequency spectrum information to be more precise by means of the frequency spectrum interpolation based on a spline function, and the center frequency estimation for the frequency spectrum after application of spline interpolation is more accurate than a traditional center frequency measuring method, thus greatly improving the accuracy for determining the wind profile radar wind speed.