| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: long-duration code-phase-shift keyed (CPSK) radio pulse is generated by joining M>1 partial radio pulses at carrier frequency of a probing signal fof the same amplitude u, same duration ?for a limited number P>1 of different possible values of the initial oscillation phase ?, whereemitted into the probed region in space, the echo signal from a target is processed in a matched filter with a pulse characteristic which is a mirror to the intra-pulse phase-shift keying law of the radio pulse; the value of the initial phase ?of each of the M partial radio pulses of the generated probing CPSK radio pulse is reduced D times, where D is the number which is a multiple of the number of all received frequency harmonics of the echo signal, and the phase of the matched filters of N receiving channels is varied according to the law n?/D, whereis the number of the receiving channel.EFFECT: enabling simultaneous matched filtration of echo signals of objects with nonlinear electrical properties on all N harmonics of the probing signal.3 dwg |
