Affiliation:
1. School of Information Engineering , Suqian University , , China
Abstract
Abstract
We propose a single channel blind source separation algorithm for convolutively mixed linear frequency modulation (LFM) signals based on smoothed Wigner-Ville distribution (SWVD) time-frequency analysis, Canny edge detection, and Hough transform detection. First, the SWVD time-frequency analysis diagram is obtained as an image based on the LFM time-frequency characteristics. Second, Canny edge detection is performed on the image. Then, Hough transform is used to detect the characteristic parameters of the linear signal. Finally, the source signal is recovered. The simulation results show that the algorithm is effective for single channel detection and extraction of convolutively mixed LFM signals.
Reference15 articles.
1. [1] H. Zhaoshui, X. Shengli, and F. Yuli, “Sparse representation and blind source separation of ill-posed mixtures”, Science in China Series F: Information Sciences, vol. 49, no. 5, pp. 639–652, https://doi.org/10.1007/S11432-006-2020-8, 2006.10.1007/s11432-006-2020-8
2. [2] A. Ozerov, P. Philippe, R. Gribonval, and F. Bimbot, “Choice and adaptation of statistical models for single channel singing voice separation”, Traitement du Signal, vol. 24, no. 3, pp. 211–224, 2007.
3. [3] R. Tao, N. Zhang, and Y. Wang, “Analysing and compensating the effects of range and Doppler frequency migrations in linear frequency modulation pulse compression radar”, IET Radar Sonar and Navigation, vol. 5, no. 1, pp. 12–22, https://doi.org/10.1049/IET-RSN.2009.0265, 2011.10.1049/iet-rsn.2009.0265
4. [4] B. Reynders and S. Pollin, “Chirp spread spectrum as a modulation technique for long range communication”, Symposium on Communications and Vehicular Technologies, https://doi.org/10.1109/SCVT.2016.7797659, 2016.10.1109/SCVT.2016.7797659
5. [5] G. Ben, X. Zheng, Y. Wang, N. Zhang, and X. Zhang, “A Local Search Maximum Likelihood Parameter Estimator of Chirp Signal”, Applied Sciences, vol. 11, no. 2, pp. 673, https://doi.org/10.3390/APP11020673, 2021.10.3390/app11020673
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