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The synthetic aperture technique can not be used to improve azimuth resolution in forward-looking mode or real aperture radar systems. In this paper, an improved High-Frequency-Raised (HFR) algorithm is introduced to enhance the azimuth resolution of radar systems. The super-resolution performance of the proposed algorithm depends on the raise coefficient and is different for different equivalent...
In this letter, the antenna array design problem in minimum redundancy (MR) multiple-input-multiple-output (MIMO) radars is addressed, which seeks to maximize the virtual array aperture for a given number of transmitting and receiving (Tx/Rx) elements. Based on difference bases and cyclic difference sets (CDSs), a combinatorial method is proposed for the optimal design of Tx/Rx antenna arrays. The...
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