RADER SYSTEM, RADER DEVICE AND RADER SIGNAL PROCESSOR

摘要

PROBLEM TO BE SOLVED: To speed up an arithmetic operation by using fast Fourier transformation when Fourier transformation is performed at a receiving side.;SOLUTION: A rader device 1 makes a pulse repetition interval of a pulse transmitted for observation an unequal interval while remaining periodicity. A rader signal processor 2 comprises: a signal separation section 201 for performing range compression on a signal indicating an observation result from the rader device 1 to separate the same into signal sequences having periodicity; a signal restoration section 202 for converting the signal sequences separated by the signal separation section 201 into a frequency domain through fast Fourier transformation, combining the signal sequences converted into the frequency domain and turning the combined signal to a time domain; and an image regeneration section 203 for performing image regeneration with respect to the signal obtained by the signal restoration section 202 to form a regeneration image 12.;COPYRIGHT: (C)2015,JPO&INPIT