Patent RU-2686851-C1 (RU)
Inventor: MERDANOV MERDAN KAZIMAGOMEDOVICH
IPC: G01S7/36
Filed: 2018-07-30
Granted: 2019-05-06
Abstract: FIELD: physics.SUBSTANCE: invention relates to radar engineering and can be used for spatial processing of radio signals. Said result is achieved by the fact that the module for spatial processing of radio signals has a decision unit, which additionally includes a threshold detection unit, four channels, each of which consists of N high-speed filters, where N is determined from the condition of determining the accuracy of radial speed of the target, each speed filter comprises M discrete processing units, where M is determined from the condition of determining the accuracy of spatial coordinates, first, second and third outputs of each channel are connected to corresponding output of spatial processing module of radio-frequency signals, corresponding input of which is connected to input of corresponding channel, first, second and third outputs of each speed filter are connected to corresponding output of each corresponding channel, corresponding output of which is connected to corresponding input of corresponding speed filter, first, second and third outputs of each discrete range processing unit are connected to corresponding output of each respective speed filter, corresponding output of which is connected to corresponding input of corresponding discrete processing unit, wherein each discretion unit comprises a block diagram-forming circuit, a threshold signal detection unit and a spatial signal resolution unit, the first input of which is connected to the first output of the beam-forming circuit unit, the second output of which is connected to the first output of the discretionary unit, and input of threshold signal detection unit, which output is connected to second output of discrete processing unit, third output of which is connected to output of spatial signal resolution unit, first and second inputs of diagram-forming circuit unit are connected to first and second inputs of discrete processing unit, third input of which is connected to the third input of the block diagram-forming circuit, wherein the unit of the diagram-forming circuit comprises a fast Fourier transform (FFT) unit, a reference setting unit, two multipliers, an adder and a phase linear phase-on unit, the signal output of which is connected to the second input of the second multiplier unit, output of which is connected to the second output of the unit of the diagram-forming circuit and the input of the adder, the output of which is connected to the first output of the unit of the diagram-forming circuit, the first and second inputs of which are connected to the first and second inputs of the fast Fourier transform, which output is connected to the first input of the first multiplier unit, the second input of which is connected to the output of the reference signal setting unit, and the output is connected to the first input of the second multiplier unit, the input of the phase linear run-on calculation unit is connected to the third input of the beam-forming circuit unit.EFFECT: technical result is improvement of functional capabilities of a module for spatial processing of radio signals by implementing a procedure for increasing azimuth resolution.1 cl, 3 dwg