Patent ID: 6741204
Filing Date: 2004-05-25
Classification: G01S

Abstract:
A signal process apparatus for an on-vehicle radar having a plurality of channels formed by a transmission antenna and a reception antenna array, and for processing a beat signal derived by mixing a transmission signal of a radar wave transmitted by the transmission antenna with a reception signal received by reception antenna array the through the channels, the signal process apparatus comprising:a first operation unit for performing frequency analysis of the beat signal and obtaining a distance power spectrum for each of the channels; a prediction point setting unit for setting a prediction point where an object is considered to be existent based on information other than peaks of the distance power spectrum; and a second operation unit for obtaining a direction power spectrum at the prediction point established by the prediction point setting unit based on a operation result of the first operation unit, whereby based on the operation result of the first and second operation units, information on the object that reflects the radar wave is obtained.