Signal processing apparatus, radar apparatus, vehicle control system, signal processing method and computer readable medium

摘要

A signal processing apparatus (11) for processing a transmitted signal whose frequency changes in a predetermined cycle and a received signal obtained by receiving a reflected wave of a transmitted wave depending on the transmitted signal from an object, the signal processing apparatus (11). 11) is adapted to perform a multiple object recognition processing, wherein peak signals are obtained in a first period in which the frequency of the transmitted signal increases, and in a second period in which the frequency of the transmitted signal drops, and each having a difference frequency between represent the transmitted signal and the received signal, and the peak signals in the first period are paired with the peak signals in the second period to detect object information associated with the peak signals, the signal processing apparatus (11) comprising: an area setting each setting a frequency range in the first and second periods based on a frequency of an integer multiple of a peak signal associated with an object information obtained in a preceding object recognition processing; a signal setting unit which, when a peak signal is within the frequency range of the first period and the second period respectively, sets this peak signal as a particular harmonic peak signal; and a pairing unit that pairs a particular, harmonic peak signal in the first period and a particular, harmonic peak signal in the second period.