Frequency hopping signals tracking and sorting based on dynamic programming modulated wideband converters

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Abstract

Most of the earlier tracking and network sorting approaches with a high sampling rate for frequency hopping (FH) signals did not adapt to the wideband system during their implementation, whereas the sub-Nyquist based algorithms cannot satisfy the real-time requirement for dealing with the rapid change of sparsity. It is important to improve the compressed sensing (CS) methods for tracking and sorting wideband FH signals. In this paper, a dynamic programming modulated wideband converters (MWC) scheme is proposed. First, considering the wide gap of FH signals, an improved power estimation method is proposed to track the support set in the time domain. Second, to sort multiple signals more effectively, a feedback control algorithm based on dynamic programming is proposed. In the proposed method, the total sampling rate is decreased significantly, and multiple FH signals are separated rapidly without recovery based on the results of tracking and comparative power. Simulations show that the proposed method can track and sort FH signals efficiently and more practically than previous methods.

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CITATION STYLE

APA

Lei, Z., Yang, P., Zheng, L., Xiong, H., & Ding, H. (2019). Frequency hopping signals tracking and sorting based on dynamic programming modulated wideband converters. Applied Sciences (Switzerland), 9(14). https://doi.org/10.3390/app9142906

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