Kabushiki Kaisha Toyota Chuo Kenkyusho

Shigeki Ohshima

Toshiaki Watanabe

Kunitoshi Nishikawa

Yoshikazu Asano

A signal processing unit detects the azimuthal direction of a target in accordance with the phase difference between signals received by two receiving antennas. Then, by sequentially switching plural transmitting antennas having mutually different beam directions with a switching device, received signals are obtained using each of the transmitting antennas.

Radar

An antenna is divided into a plurality of sub-arrays which are arranged parallel to each other on a turntable. At least one of the sub-arrays is laterally divided into sub-array sections. Reception signals from these sub-array sections are compared with each other to detect a phase difference therebetween. This phase difference is utilized to control the beam direction of the antenna such that the antenna can be properly oriented to the satellite at all times.

Growing community of inventors

Aichi, Japan

Shigeki Ohshima