FPGA (field-programmable gate array)-based moving target radar cross section measurement method
A radar cross-section and measurement method technology, applied to radio wave measurement systems, instruments, etc., can solve the problems of prolonged processing time, consumption of FPGA multiplier resources and storage resources, etc.
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[0068] The moving target to be measured is a vehicle whose maximum size D is equal to 5m, and the radar transmits a chirp signal s(t) to the moving target to be measured, and s(t) is shown in Formula 1, where the pulse width T p Equal to 9us, carrier frequency f c It is equal to 35GHz, the bandwidth B is equal to 8MHz, and the modulation frequency K is equal to 8.89×10 11 , sampling frequency f s It is equal to 10MHz, the number M of pulses repeatedly sent in one coherent processing period is equal to 64, and the pulse repetition period (PRT) T is equal to 60us. Arrange the radar and the moving target to be measured in an unobstructed outdoor environment, the distance between the radar and the moving target to be measured is around 6200m, and the moving target to be measured is within the range of the radar beam with a velocity v equal to 10m / s facing away from the radar sports. like figure 1 As shown, the FPGA signal processing part mainly includes a frequency domain puls...
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