| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a radar receiving device and a signal detection method capable of detecting pulse data with high sensitivity. <P>SOLUTION: This device is constituted of a filter 3 for restricting the band of a received signal, an A/D converter 4 for converting an output signal from the filter into a digital signal, a signal accumulator 5 for accumulating the digital signal at a prescribed accumulation cycle, an FFT processor 6 for performing FFT relative to accumulated signal data, a signal detector 7 for detecting a carrier frequency based on output data from the FFT processor, a digital filter 8 and a digital detector 9 for performing digital detection based on the carrier frequency, and an arrival time detector 10 and a pulse data detector 11 for detecting prescribed pulse data. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p> |
