DME interference suppression method based on joint NLS and CS signal reconstruction

Abstract

Abstract: To mitigate the influence of DME signal on OFDM receiver of L-DACS1 operating as an inlay system,DME interference suppression method based on joint NLS(nonlinear least square) and CS (compression sensing) signal reconstruction is presented. Firstly, DME signal is reconstructed by NLS and eliminated in time domain. Secondly, the output signal of NLS is filtered by low-pass filter to reduce the out-of-band interference signal and noise signal. Finally, the residual DME signal is reconstructed by CS algorithm and eliminated in frequency domain.Computer simulation results show that the proposed method can effectively suppress DME interference and improve the reliability of L-DACS1 system.

Key words: L-DACS1, DME interference, NLS, CS

CLC Number:

LIU Haitao, CHEN Qian, WANG Lei, LI Dongxia. DME interference suppression method based on joint NLS and CS signal reconstruction[J]. .

References 10

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