DISTRIBUTED APERTURE RADAR DEVICE AND RADAR SIGNAL PROCESSING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a distributed aperture radar device capable of improving the signal processing performance by using Nested Array technique while reducing the number of received samples.;SOLUTION: The distributed aperture radar device includes multiple first and second antenna elements, a third antenna element, a reception processing part and a signal processor. The multiple first antenna elements are ULA of level 1 and the multiple second antenna elements are ULA of level 2. The third antenna element is arranged at a prescribed distance from a first antenna element positioned on other end part of the multiple first antenna elements. The signal processing part has a covariance matrix generation part, a rearrangement part and an average processing part. The covariance matrix generation part generates a covariance matrix from a digital signal converted by the reception processing part. The rearrangement part generates a rearrangement data stream by rearranging data components of the covariance matrix and a sample data stream. The average processing part calculates an average of the rearrangement data stream and the sample data stream.;COPYRIGHT: (C)2014,JPO&INPIT