DEVICE AND METHOD FOR PROCESSING RADAR SIGNAL

PROBLEM TO BE SOLVED: To obtain a radar signal processing device and a radar signal processing method, where deterioration in distance resolution is prevented in a region in which the influence of a phase error is small in regions of heavy rain. SOLUTION: The radar signal processing device comprises a phase difference calculation section 4 for calculating a phase difference dp, between a horizontally polarized wave reception signal H and a vertically polarized wave received signal V; an echo intensity calculation section 1 for calculating an echo intensity A from the horizontally polarized wave reception signal H or the vertically polarized wave reception signal V; a temporary estimation value calculating section 2 for calculating a temporary estimation value Ra in rainfall intensity from the echo intensity A; a distance differential section setting section 3 for using the temporary estimation value Ra to set a distance differential section D, when the distance differential phase difference dp is calculated; a distance differential calculation section 5 for differentiating the phase difference dp by distance, by using the distance differential section D and calculating a phase difference distance differential value Kdp; and a rainfall intensity estimating section 6 for calculating a rainfall intensity estimation value R from the phase difference distance differential value Kdp. COPYRIGHT: (C)2005,JPO&NCIPI