Patent ID: 11876582
Assignee: METAWAVE CORPORATION
Field: Telecommunications (Electrical engineering)
Classification: CPC G  H | IPC H

Claim 10:
11. A radar system, comprising:
a transmit antenna having a plurality of antenna elements arranged in rows and columns;
a receive antenna having a plurality of antenna elements arranged in rows and columns;
a transceiver coupled to the transmit antenna and the receive antenna, the transceiver configured to control transmit beams having an azimuth fan beam; and
an azimuth detection module coupled to the transceiver and configured to process received signals and identify an azimuth angle of arrival of a target by correlating signals received at antenna elements in rows of the receive antenna, wherein the azimuth detection module is further configured to determine the azimuth angle of arrival of the target by:
(i) performing a multi-dimensional Fast Fourier Transform (FFT) of the correlated signals received at the antenna elements in rows of the receive antenna, and
(ii) performing non-coherent integration and constant false alarm rate detection of the correlated signals.