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PIER PIER B PIER C PIER M PIER Letters
2010-05-24
Co-Frequency Interference Suppression Algorithm via Maximum Signal Minus Interference Level
By
Lingjiang Kong,

    Prof. Lingjiang Kong

    University of Electronic Science and Technology of China

    China

    Homepage

Meifang Luo

    Dr. Meifang Luo

    University of Electronic Science and Technology of China

    China

    Homepage

Progress In Electromagnetics Research, Vol. 104, 183-199, 2010
doi:10.2528/PIER10032307
Abstract
Co-frequency interference problem is severe in shared-spectrum multistatic radar system, leading to detection problems in applications. In order to mitigate the co-frequency interferences, an adaptive pulse compression algorithm based on Maximum Signal Minus Interference Level criterion(MSMIL) is proposed in this paper, the main idea of which is to adaptively design an appropriate filter at each range cell, maximizing the result of signal power minus interference power, so that both range sidelobes and cross-correlation interference can be suppressed. Simulation results show that the algorithm outperforms the traditional multistatic adaptive pulse compression (MAPC) method in interference suppression. Compared with MAPC method, after one iteration step, the output SIR of the proposed algorithm is increased by about 10 dB. And after two iteration steps, it is increased by more than 40 dB. Moreover, it also outperforms the MAPC in convergence speed.
Citation
Lingjiang Kong, and Meifang Luo, "Co-Frequency Interference Suppression Algorithm via Maximum Signal Minus Interference Level," Progress In Electromagnetics Research, Vol. 104, 183-199, 2010.
doi:10.2528/PIER10032307
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