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Parameter Estimation Based on Fractional Lower Order Statistics and Fractional Correlation in Wideband Bistatic MIMO Radar System

Li Li1 and Tianshuang Qiu2
1.Information Engineering College, Dalian University, Dalian, 116622, China
2.Dalian University of Technology, Dalian, 116023, China
Abstract —This paper proposes a novel wideband signal model and a novel method in wideband bistatic Multiple-Input Multiple-Output radar system. It combines the fractional lower order statistics and fractional correlation (FLOS-FC), for suppressing the impulse noise and estimating parameters of the target. Firstly, an extended signal array model is proposed under the alpha-stable distribution noise model. Secondly, Doppler stretch and time delay are jointly estimated by searching the optimal rotation angle to meet concentrated-energy of the FLOS-FC. Furthermore, two algorithms are presented for the estimation of direction of departure (DOD)-direction of arrival (DOA), including FLOS-MUSIC and FLOS-ESPRIT-based algorithms. Simulation results are presented to verify the effectiveness of the proposed method.
 
Index Terms—Wideband Bistatic MIMO radar, fractional lower order statistics, fractional correlation, parameter estimation

Cite: Li Li and Tianshuang Qiu, "Parameter Estimation Based on Fractional Lower Order Statistics and Fractional Correlation in Wideband Bistatic MIMO Radar System," Journal of Communications, vol. 9, no. 10, pp. 745-750, 2014. Doi: 10.12720/jcm.9.10.745-750
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