A new sidelobe suppression method for non-uniform linear array MIMO radar imaging

To solve the problem of high sidelobe in non-uniform linear array multiple input multiple output (MIMO) radar, a new method based on array interpolation is proposed to reduce the sidelobe level. First, the non-uniform linear MIMO radar equivalent array formed by matched filter is transformed into uniform linear array, and then the back projection (BP) algorithm is used to achieve high resolution image. Both theoretical analysis and simulation results demonstrate that the proposed method is effective to reduce non-uniform linear array MIMO radar sidelobe level and improve the imaging quality. © 2013 by Editorial Department of Chinese Journal of Radio Science.