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Compensation method for envelop migration of MIMO radar high speed moving target based on transmit signal pre-process

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4 Author(s)
Cheng Luo ; Univ. of Electron. Sci. & Technol. of China, Chengdu, China ; Jun Li ; Hong Ming Liu ; Zi Shu He

According to the echo envelop migration of MIMO radar translational moving target with a high speed, the characteristic of the echo is analyzed, then a novel compensation method, based on transmit signal pre-process, is proposed. The method makes envelops of echo pulses automatic alignment in the fast-slow time domain. At the receiver, combining the Fractional Fourier transmit (FrFT), two index phases caused by the acceleration can be compensated, so the Doppler shift can be compensated simultaneously. The method requires tiny calculating quantities, and it is easy to achieve, moreover there's no SNR-loss in the process. The results of simulation verified the validity of the method presented.

Published in:

Microwave and Millimeter Wave Circuits and System Technology (MMWCST), 2012 International Workshop on

Date of Conference:

19-20 April 2012