Patent ID: 7817081

Claim:
A radar apparatus that detects an object, comprising: an oscillator configured to generate carrier waves; a first transmitter configured to spread the carrier waves generated by said oscillator using a first pseudo-random code; a second transmitter configured to spread the carrier waves generated by said oscillator using a second pseudo-random code different from the first pseudo-random code; a first transmission antenna configured to transmit first carrier waves that are the carrier waves spread by said first transmitter; a second transmission antenna configured to transmit second carrier waves that are the carrier waves spread by said second transmitter, the second carrier waves having a directional characteristic different from a directional characteristic of the first carrier waves transmitted by said first transmission antenna; a reception antenna that includes a first reception antenna configured to receive reflected waves that are the first carrier waves transmitted by said first transmission antenna and reflected from the object and a second reception antenna configured to receive reflected waves that are the second carrier waves transmitted by said second transmission antenna and reflected from the object; and a receiver that includes a first despreader configured to despread the reflected waves received by said first reception antenna using the first pseudo-random code, a first detector configured to detect the reflected waves despread by said first despreader using the carrier waves generated by said oscillator, a second despreader configured to despread the reflected waves received by said second reception antenna using the second pseudo-random code, and a second detector configured to detect the reflected waves despread by said second despreader using the carrier waves generated by said oscillator.