Receiver design for MIMO radar range sidelobes suppression

Authors:
Changzheng Ma;Tat Soon Yeo;Chee Seng Tan;Yong Qiang;Tao Zhang
Affiliations:
Department of Electrical and Computer Engineering, National University of Singapore, Singapore;Department of Electrical and Computer Engineering, National University of Singapore, Singapore;DSO National Laboratory, Singapore, Singapore;Xi'an Electronic Engineering Research Institute, Xi'an, China;Xi'an Electronic Engineering Research Institute, Xi'an, China
Venue:
IEEE Transactions on Signal Processing
Year:
2010

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Abstract

Multiple-input multiple-output (MIMO) radar transmits multiple-coded signals. In matched filter receiver, coded signals are required to have very good auto- and cross-correlation properties. These conditions are difficult to fulfill simultaneously when the lengths of the codes are short and there are many transmit antennas. In this correspondence, a receive filter matrix is designed using quadratic optimization method. The integrated correlations between the transmitted codes and the receive filter matrix in the area around zero shift are constrained under a prescribed level and the output noise power is minimized. A closed form solution is obtained. This integrated sidelobe level (ISL) method is computationally more efficient compared with the peak sidelobe level (PSL) method.