Patent ID: 7642952
Filing Date: 2010-01-05
Classification: G01S

Abstract:
1. A spread spectrum radar apparatus, comprising: a first local oscillator which generates a first oscillator signal; a second local oscillator which generates a second oscillator signal; a first pseudo-noise code generating circuit which generates a first pseudo-noise code; a second pseudo-noise generating circuit which generates a second pseudo-noise code; a transmission circuit which generates a spread signal that is a spectrum-spread signal, using the first oscillator signal, the second oscillator signal, and the first pseudo-noise code, and which emits the spread signal as a detection radio wave; and a reception circuit which receives, as a reception signal, the detection radio wave reflected from an object, and which generates an intermediate frequency signal by the reception circuit despreading a spectrum of the reception signal based on the first oscillator signal and the second pseudo-noise code being generated by delaying the first pseudo-noise code, wherein a frequency associated with the first pseudo-noise code is higher than a frequency of the second oscillator signal.