Patent ID: 7812759
Filing Date: 2010-10-12
Classification: G01S

Abstract:
1. A radar apparatus comprising: transmission means for transmitting an electric wave to a target; reception means for obtaining reception signals over a plurality of channels from an electric wave reflected by said target; digital beam forming means for grouping said reception signals over a plurality of channels into a plurality of groups and performing digital beam forming on each of said plurality of groups; summing means for summing the amplitudes or power of frequency components obtained as a result of the digital beam forming performed on each of the plurality of groups by said digital beam forming means; peak detection means for detecting a peak frequency of a signal of the electric wave reflected by the target from the result of the summation by said summing means; distance/speed calculation means for calculating the distance and speed of the target based on the peak frequency obtained by said peak detection means; and angle calculation means for extracting a frequency component of the peak frequency detected by said peak detection means to calculate the angle of the electric wave reflected by said target.