Patent ID: 6825796
Filing Date: 2004-11-30
Classification: G01S

Abstract:
A radar apparatus comprising:a signal transmitter device that transmits a signal; a scanner that two-dimensionally scans a target object using the signal transmitted from said signal transmitter device by oscillating in longitudinally and laterally; a signal receiver device that receives a reflection signal which is originally transmitted via said scanner; and a control device that controls a longitudinal oscillation signal and a lateral oscillation signal used to oscillate said scanner longitudinally and laterally in correspondence to the length of time over which a scanning observation is performed through a two-dimensional scan, wherein said control device controls a frequency of the longitudinal oscillation signal and a frequency of the lateral oscillation signal so that cycles of beats constituted of the longitudinal oscillation signal and the lateral oscillation signal are set to 1/integer of the scanning observation period.