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| Blind Estimation of Modulation Parameters of MFSK Signal Based on Time-frequency Modifying and Waveform Transforming |
| QIU Zhaoyang HUANG Yan OUYANG Xi |
| (Institute of Information System Engineering, Information Engineering University of PLA, Zhengzhou 450001, China) |
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Abstract MFSK signal is widely used in military and civil communication systems. For the issues of its modulation parameters’ estimation, wavelet transform theory is mostly adopted in current algorithms. However, the anti-noise performance is poor and parameters are difficult to choose. On the research of indeterminacy theory of spectrogram, a strategy for spectrograms modifying is proposed and the waveform transforming theory is drawn into to upgrade the duty cycle. As the result, the anti-noise performance is improved and the self adaption blind parameter estimation is achieved. The simulation results indicate a better performance of proposed algorithm than current algorithms in anti-noise and frequency offset performance and robustness of parameters which makes it a better choice for engineering practice.
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Received: 29 December 2016
Published: 23 June 2017
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| Fund:The National Natural Science Foundation of China (61072046) |
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Corresponding Authors:
QIU Zhaoyang
E-mail: qiuzhaoyang2010100@163.com
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| [1] |
WANG H, DOBRE O A, LI C, et al. Joint classification and parameter estimation of M-FSK signals for cognitive radio[C]. IEEE International Conference on Communications, Ottawa, Canada, 2012: 1732-1736.
|
| [2] |
WANG H, DOBRE O, LI C, et al. Blind cyclostationarity- based symbol period estimation for FSK signals[J]. IEEE Communications Letters, 2015, 19(7): 1149-1152. doi: 10. 1109/LCOMM.2015.2436915.
|
| [3] |
汪伟, 张效义, 滕晓云, 等. 一种MASK信号码元速率估计方法[J]. 信息工程大学学报, 2015, 16(1): 35-40. doi: 10.3969/ j.issn.1671-0673.2015.01.007.
|
|
WANG W, ZHANG X Y, TENG X Y, et al. Symbol rate estimation of M-ASK modulated signals[J]. Journal of Information Engineering University, 2015, 16(1): 35-40. doi: 10.3969/j.issn.1671-0673.2015. 01.007.
|
| [4] |
WANG Q, HUANG B, and XU Z. Non-data-aided timing recovery algorithm for MIL-STD SOQPSK[J]. Electronics Letters, 2015, 51(5): 423-425. doi: 10.1049/el.2014.4016.
|
| [5] |
SUDHAN Majhi and TING Seeho. Blind symbol-rate estimation and test bed implementation of linearly modulated signals[J]. IEEE Transactions on Vehicular Technology, 2015, 64(3): 954-963.
|
| [6] |
纪勇, 徐佩霞. 基于小波变换的数字信号符号率估计[J]. 电路与系统学报, 2003, 8(1): 12-15.
|
|
JI Yong and XU Peixia. The estimation of symbol rate of digital signals based on wavelet transform[J]. Journal of Circuits and Systems, 2003, 8(1): 12-15.
|
| [7] |
GAO Y, WAN Y, LI L, et al. Baud rate estimation of fsk signals based on wavelet transform[C]. Second International Conference on Intelligent System Design and Engineering Application, Sanya, China, 2012: 181-184.
|
| [8] |
王鹏, 李建平. 信号测不准原理的量子诠释[J]. 电子科技大学学报, 2008, 37(1): 14-16.
|
|
WANG Peng and LI Jianping. Quantum interpretation of signal’s uncertainty principle[J]. Journal of University of Electronic Science and Technology of China, 2008, 37(1): 14-16.
|
| [9] |
樊昌信, 曹丽娜. 通信原理[M]. 第6版, 北京: 电子工业出版社, 2012: 134-140.
|
|
FAN Changxin and CAO Lina. Communication Theories[M]. Sixth Edition, Beijing: Publishing House of Electronics Industry, 2012: 134-140.
|
| [10] |
刘双平, 闻翔, 金梁. 一种抑制符号速率估计背景色噪声的非线性滤波算法[J]. 电子学报, 2007, 35(1): 95-99.
|
|
LIU Shuangping, WEN Xiang, and JIN Liang. A new nonlinear filtering algorithm for colored background self-noise suppressing of symbol rate estimation[J]. Acta Electronica Sinica, 2007, 35(1): 95-99.
|
| [11] |
王青嫒, 张更新, 胡婧, 等. 一种基于时频分析的信号检测算法[J]. 无线电通信技术, 2016(1): 38-42.
|
|
WANG Qingyuan, ZHANG Gengxin, HU Jing, et al. A signal detection algorithm based on time-frequency analysis[J]. Radio Communications Technology, 2016(1): 38-42.
|
|
|
|
