Abstract
To solve the problem of reconnaissance and processing of broadband satellite communication signals, a kind of satellite communication signals BPSK/QPSK modulation pattern recognition method was put forward in this paper. This method deals with the satellite descending signal with BPSK/QPSK modulation in the under-sampling condition. Because the corrected spectrum of BPSK signal contains obvious crest, while QPSK signal does not contain this feature. The difference of the waveform characteristics is used to complete modulation pattern recognition. The simulation results show that this method can identify BPSK/QPSK modulation signals when SNR is greater than 1 dB. When the sampling points are reduced, the satellite communication signal under-sampling modulation pattern recognition method can still maintain good recognition performance.
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Fund Project
National Natural Science Foundation of China (youth project): No. 61501484; Research and Development Fund of Naval Engineering University (Science and Technology [2016] No. 66), accounting subject: 425517K170; 425517K167.
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Wen, T., Chen, Q. (2020). A Method for Under-Sampling Modulation Pattern Recognition in Satellite Communication. In: Liang, Q., Liu, X., Na, Z., Wang, W., Mu, J., Zhang, B. (eds) Communications, Signal Processing, and Systems. CSPS 2018. Lecture Notes in Electrical Engineering, vol 516. Springer, Singapore. https://doi.org/10.1007/978-981-13-6504-1_112
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DOI: https://doi.org/10.1007/978-981-13-6504-1_112
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