光纤通信中激光接口干扰信号过滤研究
|
摘要
光纤通信中激光接口的传输信号受到色噪声线谱扰动的干扰,导致输出误码失真,需要进行干扰信号滤波处理,提出一种基于自适应格型IIR陷波处理的光纤通信中激光接口干扰信号过滤技术。提取光纤通信中的激光接口输出信号特征量,采用自适应滤波方法进行光纤通信信号的线谱增强处理,结合自相关匹配方法提取光纤通信的激光接口传输信号的集平均统计量,采用相位耦合方法进行信号的频谱分解,对提取的干扰信号特征量采用自适应格型IIR陷波方法进行特征分解和盲源分离,实现光纤通信中激光接口干扰信号的有效过滤。仿真结果表明,采用该方法进行光纤通信中激光接口干扰信号过滤的滤波性能较好,输出信号的信噪比较高,提高了激光通信传输的信号保真性。
In optical communication,the transmission signal of the laser interface is disturbed by the line spectrum disturbance of the color noise,which leads to the distortion of the output error code. It is necessary to carry out the filtering processing of the interference signal. A filtering technique for the interference signal of the laser interface based on the adaptive lattice IIR notch processing is proposed. The characteristic quantity of the output signal of the laser interface in the optical fiber communication is extracted. The adaptive filtering method is used to enhance the line spectrum of the optical fiber communication signal,and the average statistic of the laser interface transmission signal is extracted by the autocorrelation matching method. The phase coupling method is used to decompose the signal spectrum,and the extraction of the signal is extracted. The eigenvalue of the interference signal is used in the adaptive lattice IIR trapping method for feature decomposition and blind source separation,which can effectively filter the interference signal of the laser interface in the optical fiber communication. The simulation results show that the filtering performance of the interference signal of the laser interface in optical fiber communication is better,the signal to noise ratio of the output signal is high,and the signal fidelity of the laser communication transmission is improved.
In optical communication,the transmission signal of the laser interface is disturbed by the line spectrum disturbance of the color noise,which leads to the distortion of the output error code. It is necessary to carry out the filtering processing of the interference signal. A filtering technique for the interference signal of the laser interface based on the adaptive lattice IIR notch processing is proposed. The characteristic quantity of the output signal of the laser interface in the optical fiber communication is extracted. The adaptive filtering method is used to enhance the line spectrum of the optical fiber communication signal,and the average statistic of the laser interface transmission signal is extracted by the autocorrelation matching method. The phase coupling method is used to decompose the signal spectrum,and the extraction of the signal is extracted. The eigenvalue of the interference signal is used in the adaptive lattice IIR trapping method for feature decomposition and blind source separation,which can effectively filter the interference signal of the laser interface in the optical fiber communication. The simulation results show that the filtering performance of the interference signal of the laser interface in optical fiber communication is better,the signal to noise ratio of the output signal is high,and the signal fidelity of the laser communication transmission is improved.
引文
[1]祁宏伟,白海艳,候宏旭.随机信道对激光通信网络系统的性能影响[J].激光杂志,2017,38(1):106-109.
[2]党小宇,刘兆彤,李宝龙,等.物理层网络编码中连续相位调制信号的非相干多符号检测[J].电子与信息学报,2016,38(4):877-884.
[3]杜志广,颜树华,林存宝,等.双路信号相位同步测量系统设计与实现[J].激光技术,2016,40(3):315-319.
[4]杨柳,张杭.时变混合共轭梯度盲提取算法[J].信号处理,2015,31(1):51-58.
[5]JIANG Junzheng,ZHOU Fang.Iterative design of two-dimensional critically sampled MDFT modulated filter banks[J].Signal Processing,2013,93(11):3124-3132.
[6]RAJAPAKAHA N,MADANAYAKE A,BRUTON LT.2Dspace-time wave-digital multi-fan filter banks for signals consisting of multiple plane waves[J].Multidimensional Systems and Signal Processing,2014,25(1):17-39.
[7]罗琦,朱敏,韦香.多频信号的自适应随机共振检测方法[J].武汉大学学报(理学版),2013,59(3):260-266.
[8]王红星,陆发平,刘传辉,等.一种椭圆球面波调制信号自适应峰均比抑制方法[J].电子与信息学报,2017,39(1):75-81.
[9]CHANDRASEKHAR R,KAMARAJU M,SAIRAM M V S,et al.PAPR reduction using combination of precoding with Mu-law companding technique for MIMO-OFDM systems[C]//IEEE International Conference on Communications and Signal Processing,Melmaruvathur,India,2015:0479-0483.
[10]HE Y,ZHANG C S,TANG X M,et al.Coherent integration loss due to pulses loss and phase modulation in passive bistatic radar[J]//Digital Signal Processing,2013,23(4):1265-1276.
[11]HAO H.Multi component LFM signal detection and parameter estimation based on EEMD-FRFT[J].Optik-International Journal for Light and Electron Optics,2013,124(23):6093-6096.
[12]GOVONI M A,LI H,KOSINSKI J A.Range-Doppler resolution of the linear-FM noise radar waveform[J].IEEETransactions on Aerospace and Electronic Systems,2013,49(1):658-664.
[13]陈春晖,张群,罗迎,等.一种步进频率信号认知雷达波形优化设计方法[J].航空学报,2016,37(7):2276-2285.
[14]XIA Mengying,SU Weimin,GU Hong.The research on Doppler ambiguity for dual pulse repetition frequencies radar[C].CIE International Conference on Radar,Guangzhou,2016:1090-1093.
[15]SI Hongwei,LI Zhaohui.An optimization design scheme for multiple PRT and multi-frequency coherent Doppler velometry[C]//2016 MTS/IEEE OCEANS’16 Conference,Shanghai,2016:1-6.
[16]陈雯雯,王亚林,周杰.三维统计信道中的多普勒效应及其信号分析[J].计算机科学,2017,44(3):84-88,131.
[17]SUZUKI T and KUDO H.Two-dimensional non-separable block-lifting-based M-channel biorthogonal filter banks[C]//European Signal Processing Conference,Lisbon,2014:291-295.
[2]党小宇,刘兆彤,李宝龙,等.物理层网络编码中连续相位调制信号的非相干多符号检测[J].电子与信息学报,2016,38(4):877-884.
[3]杜志广,颜树华,林存宝,等.双路信号相位同步测量系统设计与实现[J].激光技术,2016,40(3):315-319.
[4]杨柳,张杭.时变混合共轭梯度盲提取算法[J].信号处理,2015,31(1):51-58.
[5]JIANG Junzheng,ZHOU Fang.Iterative design of two-dimensional critically sampled MDFT modulated filter banks[J].Signal Processing,2013,93(11):3124-3132.
[6]RAJAPAKAHA N,MADANAYAKE A,BRUTON LT.2Dspace-time wave-digital multi-fan filter banks for signals consisting of multiple plane waves[J].Multidimensional Systems and Signal Processing,2014,25(1):17-39.
[7]罗琦,朱敏,韦香.多频信号的自适应随机共振检测方法[J].武汉大学学报(理学版),2013,59(3):260-266.
[8]王红星,陆发平,刘传辉,等.一种椭圆球面波调制信号自适应峰均比抑制方法[J].电子与信息学报,2017,39(1):75-81.
[9]CHANDRASEKHAR R,KAMARAJU M,SAIRAM M V S,et al.PAPR reduction using combination of precoding with Mu-law companding technique for MIMO-OFDM systems[C]//IEEE International Conference on Communications and Signal Processing,Melmaruvathur,India,2015:0479-0483.
[10]HE Y,ZHANG C S,TANG X M,et al.Coherent integration loss due to pulses loss and phase modulation in passive bistatic radar[J]//Digital Signal Processing,2013,23(4):1265-1276.
[11]HAO H.Multi component LFM signal detection and parameter estimation based on EEMD-FRFT[J].Optik-International Journal for Light and Electron Optics,2013,124(23):6093-6096.
[12]GOVONI M A,LI H,KOSINSKI J A.Range-Doppler resolution of the linear-FM noise radar waveform[J].IEEETransactions on Aerospace and Electronic Systems,2013,49(1):658-664.
[13]陈春晖,张群,罗迎,等.一种步进频率信号认知雷达波形优化设计方法[J].航空学报,2016,37(7):2276-2285.
[14]XIA Mengying,SU Weimin,GU Hong.The research on Doppler ambiguity for dual pulse repetition frequencies radar[C].CIE International Conference on Radar,Guangzhou,2016:1090-1093.
[15]SI Hongwei,LI Zhaohui.An optimization design scheme for multiple PRT and multi-frequency coherent Doppler velometry[C]//2016 MTS/IEEE OCEANS’16 Conference,Shanghai,2016:1-6.
[16]陈雯雯,王亚林,周杰.三维统计信道中的多普勒效应及其信号分析[J].计算机科学,2017,44(3):84-88,131.
[17]SUZUKI T and KUDO H.Two-dimensional non-separable block-lifting-based M-channel biorthogonal filter banks[C]//European Signal Processing Conference,Lisbon,2014:291-295.