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Continuous-Wave Propagation Channel-Sounding Measurement System - Testing, Verification, and Measurements
Published on: June 25, 2021
Iterative adaptive frequency-domain equalization based on sliding window strategy over time-varying underwater
Lianyou Jing1, Tonghui Zheng1, Chengbing He2
1School of Information and Communication Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China.
Abstract:
This letter provides a novel iterative adaptive frequency-domain equalization for time-varying underwater acoustic (UWA) channels. The proposed scheme adopts a modified frequency-domain block least mean square algorithm to update the filter weights. A sliding window strategy is developed to deal with the rapid time-varying characteristics of UWA channels. The proposed method enhances the performance through an iterative structure. Experimental results show that the bit error rates of the proposed method can be one order of magnitude lower than those of conventional schemes.
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