Patent ID: 7495604
Filing Date: 2009-02-24
Classification: G01S

Abstract:
1. Electronic scanning radar apparatus, having a transmission antenna for ejecting a transmitted signal which is comprised of a continuous wave; a reception antenna which is comprised of two or more antenna components; a mixer for mixing a received signal received by each of said two or more antenna components and said transmitted signal and for obtaining beat signals for two or more channels corresponding to said two or more antenna components; a switcher provided between said mixer and said two or more antenna components, for selectively connecting said two or more antenna components with said mixer; an A/D converter for sampling said beat signal obtained by said mixer with a predetermined sampling frequency and for obtaining received data respectively corresponding to said two or more antenna components for two or more channels; and a target detector for detecting distance and relative speed of a target on the basis of said receiving data for said two or more channels which is sampled by said A/D converter, said electronic scanning radar apparatus, comprising: whereby distance and relative speed of said target are detected on the basis of said restored data.