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为了更好地改善单通道多分量调频体制雷达引信信号的时频分布，以便于完成参数估计和信号分离，将自适应chirplet分解法引入到单通道雷达引信信号的分离问题当中，并加入时频曲线弯曲度因子，提出一种改进的自适应chirplet分解法，使其能够被用于非线性相位信号的分解，利用快速算法和优化算法，优化了运算过程，可准确且快速地求解出各参数，得到无交叉项的多分量信号时频分布，使复杂混合情况下的多分量信号也能够被较好地分离. 通过仿真，利用该方法对多种情况下混合信号的时频分布进行了很好的改进，而后分解出了各分量信号，并通过分析计算出了相应的混合系数，仿真结果说明了该方法的有效性，且具有一定的抗噪声性能.
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关键词:
- 雷达引信信号 /
- 单通道信号分离 /
- 改进的自适应chirplet分解 /
- 时频分布
An advanced method of signal decomposition-advanced adaptive chirplet decomposition(AACD) is presented to separate the radar fuze mixed signal in single-channel. The method adds curvature factor to the adaptive Gauss chirplet decomposition (AGCD), thus it can be used to decompose nonlinear time varying components. It uses the fast algorithm and trust region method to optimize arithmetic process, then all the parameters can be solved accurately and quickly, and the mixed signal's time-frequency distribution without cross terms is obtained. In the simulation, the advanced method is used to improve the time-frequency distribution of complex mixed signals, then it can separate all the components and calculate the mixing coefficients. Results indicate that the proposed method has higher effectiveness and strong performance of anti-noise-
Keywords:
- radar fuze signals /
- single-channel source separation /
- advanced adaptive chirplet decomposition /
- time-frequency distribution
[1] Liu K 2007 Ph. D. Dissertation (Hefei: University of Science and Technology of China) (in Chinese) [刘凯2007 博士学位论文 (合肥:中国科学技术大学)]
[2] Cheng H 2011 Ph. D. Dissertation (Chengdu: University of Electronic Science and Technology of China) (in Chinese) [成昊2011 博士学位论文 (成都:电子科技大学)]
[3] Cai Q W 2005 Ph. D. Dissertation (Chengdu: University of Electronic Science and Technology of China) (in Chinese) [蔡权伟 2005 博士学位论文 (成都:电子科技大学)]
[4] Cai Q W, Wei P, Xiao X C 2006 Journal on Communications 27 49 (in Chinese)[蔡权伟, 魏平, 肖先赐 2006 通信学报 27 49]
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[8] Wang F P, Wang Z J, Guo J B 2002 Acta Phys. Sin. 52 474 (in Chinese)[王芙平, 王赞基, 郭静波 2002 53 474]
[9] Wang S Y, Feng J C 2012 Acta Phys. Sin. 61 170508 (in Chinese)[王世元, 冯久超 2012 61 170508]
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[11] Huang G M, Xiong G, Zhao H C, Wang L J 2005 Jounal of Electronics & Information Technology 27 431 (in Chinese)[黄光明, 熊刚, 赵惠昌, 王李军 2005 电子与信息学报 27 431]
[12] Li J Q, Jin R H, Geng J P, Fan Y, Mao W 2007 Jounal of Electronics & Information Technology 29 570 (in Chinese)[李家强, 金荣洪, 耿军平, 范瑜, 毛炜 2007 电子与信息学报 29 570]
[13] Wang X, Huang Z T, Zhou Y Y 2012 Journal of National University of Defense Technology 34 120 (in Chinese)[王翔, 黄知涛, 周一宇 2012 国防科技大学学报 34 120]
[14] Wu L, Jiang H 2012 Information and Electronic Engineering 10 343 (in Chinese) [吴量, 江桦 2012 信息与电子工程 10 343]
[15] Li H G, Meng G 2004 Acta Phys. Sin. 53 2069 (in Chinese)[李鸿光, 孟光 2004 53 2069]
[16] Chen H B, Feng J C, Fang Y 2008 Chin. Phys. Lett. 25 405
[17] You R Y, Chen Z 2005 Chin. Phys. 14 2176
[18] Yin Q Y, Qian S E, Feng A G 2002 IEEE Trans an Signal Processing 50 1298
[19] L G Z, He Q, Wei Z S 2006 Signal Processing 22 506 (in Chinese) [吕贵洲, 何强, 魏震生 2006 信号处理 22 506]
[20] Wang Y, Jiang Y C 2007 Jounal of Electronics & Information Technology 29 2124 (in Chinese)[王勇, 姜义成 2007 电子与信息学报 29 2124]
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[1] Liu K 2007 Ph. D. Dissertation (Hefei: University of Science and Technology of China) (in Chinese) [刘凯2007 博士学位论文 (合肥:中国科学技术大学)]
[2] Cheng H 2011 Ph. D. Dissertation (Chengdu: University of Electronic Science and Technology of China) (in Chinese) [成昊2011 博士学位论文 (成都:电子科技大学)]
[3] Cai Q W 2005 Ph. D. Dissertation (Chengdu: University of Electronic Science and Technology of China) (in Chinese) [蔡权伟 2005 博士学位论文 (成都:电子科技大学)]
[4] Cai Q W, Wei P, Xiao X C 2006 Journal on Communications 27 49 (in Chinese)[蔡权伟, 魏平, 肖先赐 2006 通信学报 27 49]
[5] Cheng G F 2012 Science Technology and Engineering 12 56 (in Chinese)[陈广峰 2012科学技术与工程 12 56]
[6] Li M Z, Zhao H C 2011 Acta Armamentarii 32 543(in Chinese)[李明孜, 赵惠昌 2011兵工学报 32 543]
[7] Peng G, Wang F H, Huang Z T, Jiang W L 2010 Jounal of Hunan University(Natural Sciences) 4 42 (in Chinese)[彭耿, 王丰华, 黄知涛, 姜文利 2010 湖南大学学报: 自然科学版 4 42]
[8] Wang F P, Wang Z J, Guo J B 2002 Acta Phys. Sin. 52 474 (in Chinese)[王芙平, 王赞基, 郭静波 2002 53 474]
[9] Wang S Y, Feng J C 2012 Acta Phys. Sin. 61 170508 (in Chinese)[王世元, 冯久超 2012 61 170508]
[10] Li X X, Feng J C 2007 Acta Phys. Sin. 56 701 (in Chinese)[李雪霞, 冯久超 2007 56 701]
[11] Huang G M, Xiong G, Zhao H C, Wang L J 2005 Jounal of Electronics & Information Technology 27 431 (in Chinese)[黄光明, 熊刚, 赵惠昌, 王李军 2005 电子与信息学报 27 431]
[12] Li J Q, Jin R H, Geng J P, Fan Y, Mao W 2007 Jounal of Electronics & Information Technology 29 570 (in Chinese)[李家强, 金荣洪, 耿军平, 范瑜, 毛炜 2007 电子与信息学报 29 570]
[13] Wang X, Huang Z T, Zhou Y Y 2012 Journal of National University of Defense Technology 34 120 (in Chinese)[王翔, 黄知涛, 周一宇 2012 国防科技大学学报 34 120]
[14] Wu L, Jiang H 2012 Information and Electronic Engineering 10 343 (in Chinese) [吴量, 江桦 2012 信息与电子工程 10 343]
[15] Li H G, Meng G 2004 Acta Phys. Sin. 53 2069 (in Chinese)[李鸿光, 孟光 2004 53 2069]
[16] Chen H B, Feng J C, Fang Y 2008 Chin. Phys. Lett. 25 405
[17] You R Y, Chen Z 2005 Chin. Phys. 14 2176
[18] Yin Q Y, Qian S E, Feng A G 2002 IEEE Trans an Signal Processing 50 1298
[19] L G Z, He Q, Wei Z S 2006 Signal Processing 22 506 (in Chinese) [吕贵洲, 何强, 魏震生 2006 信号处理 22 506]
[20] Wang Y, Jiang Y C 2007 Jounal of Electronics & Information Technology 29 2124 (in Chinese)[王勇, 姜义成 2007 电子与信息学报 29 2124]
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