| 摘要 |
FIELD: radars.SUBSTANCE: invention relates to radiolocation and is intended to improve range resolution of radar stations. Said result is achieved due to that, stack of N signal pulses is formed at different carrier frequencies and N reference signals in the form of orthogonal M-sequences, where N is an integer greater than or equal to two, each pulse is phase-modulated by the reference signal, successively coherently radiated and reflected stack of N signal pulses is received. Then convolution of each received pulse is performed with appropriate reference signal in the form of M-sequence, doppler filtration of stack of N signal pulses is performed, N range resolution elements are formed.EFFECT: technical result is higher signal/noise ratio of the received signal due to suppression of signals, received from multiple ranges from previous radiated pulses on adjacent carrier frequencies, as well as from the side lobes of the spectrum of the previous radiated pulses.1 cl, 5 dwg |
