Verification Procedure for Radar Quadrature Processing Unit with Stepwise Frequency Modulation of the Probing Signal

摘要

The paper presents a verification procedure developed for the quadrature processing unit of radar with stepwise frequency modulation of the probing signal. The computer simulation and experiments on verifying the developed and manufactured quadrature processing unit were performed for the cases of placing a single stationary point object at distances 9 and 24 meters. The effect of inaccuracy in setting the phase shift between the reference oscillations of quadrature mixer on the waveform of spatial reflectogram was investigated by using the developed verification procedure; and it was shown that phase shift errors could lead to the generation of false responses.