| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pulse compression device which does not need rearrangement, even when multiple additions of result obtained by a correlation processing in a frequency domain is performed. <P>SOLUTION: A Fourier transformation section 51 calculates a received echo signal y[n] by discretization of a received echo signal y[t] and generates a received echo signal ym[k], in a frequency domain by the Fourier transformation by each section. A correlation processing section 52 performs pulse compression by a correlation processing of each section of a replica signal Re[k] stored in a memory 521 and outputs a pulse compressed signal Zm[k]. At this time, q replica signal Re[k] is obtained, for example, by subjecting the waveform of a transmitted pulse signal x[n] to time reversal, delaying the transmitted pulse signal x[n] by the pulse length and performing complex conjugate processing. Each of the calculated sections of the calculated pulse compressed signal Zm[k] is converted into a pulse compressed signal zm[n] in a time domain, and multiple addition is simply performed thereon along the time series. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
