微弱光信号的极值检测及滤波算法研究

doi:10.3976/j.issn.1002-4026.2018.01.001

Abstract

Abstract:

In order to effectively improve the accuracy of extreme value detection of weak photoelectric signal, through the analysis of the change rules of signals measured, a filtering algorithm for the extremum detection of the target signals with high precision was proposed, and the solutions to the signal detection under ideal conditions and strong interference conditions were also discussed. Firstly, in this algorithm, an improved dynamic threshold method was used to obtain the initial extremum data. Then the acquisition value was filtered by the combination of two kinds of filtering method, which were the median absolute deviation based moving filtering and the weighted average filtering. Finally, the extreme value of the signal was obtained. The test results show that the measurement results of the algorithm are consistent with the actual value, the minimum average relative error is controlled at about 0.1%, which meets the accuracy requirement. The accuracy and stability of this algorithm are higher than those of the traditional method. The research provides a certain reference for the high accurate measurement of peak and trough values of weak signals with different waveform.

Key words: information optics, amplitude measurement, filter, L*MAD rule, weak signal detection

CLC Number:

TN29

ZHANG Xiao-nan,CHEN Jie, GAO Hao, CAI Yu-long, LIU Jie, LI Zheng-bao. Research on extremum detection and filtering algorithm of weak light signal[J].SHANDONG SCIENCE, 2018, 31(1): 1-.

References

［1］胡轶. 海洋原位光学信号高精度定量测量方法研究及传感器研制\[D\]. 杭州：浙江大学，2014.
［2］陈宇晨，柯昌剑，杨松宝，等. 基于超高分辨率光谱分析的周期光信号相对相位测量方法\[J\].光子学报，2015, 44 (6):0606002.
［3］梁志国，孙璟宇，盛晓岩. 正弦信号发生器波形抖动的一种精确测量方法\[J\].仪器仪表学报，2004, 25(1):2329.
［4］李一兵，岳欣，杨莘元. 多重自相关函数在微弱正弦信号检测中的应用\[J\].哈尔滨工程大学学报, 2004,25(4):525528.
［5］张玉春，杨成峰，王文娟，等. 基于小波变换的数字滤波算法\[J\].广东电力，2007,20（12）:911.
［6］米宝永. 从噪声中提取弱光信号的采样跟踪滤波器\[J\].光学精密工程，1998,6(1):95100.
［7］陈忠明，唐厚君. 变频器信号中大幅值噪声的数字滤波算法\[J\].测控技术，2005(24)8:1215.
［8］DEYST J P, SOUNDERS T M， SOLOMON O M. Bounds on leastsquares fourparameter sinefit errors due toharmonic distortion and noise\[J\]. IEEE Transactions on Instrumentation & Measurement, 1995, 44(3):637642.
［9］胡锦，彭诗瑶，张浩，等. 基于压力传感器的高精度血压计系统设计\[J\].传感器与微系统，2014,33(3):110113.
［10］马俊，陈学煌. 一种混合滤波算法在电子自旋共振仪中的应用\[J\]. 电子测量技术，2007, 30(5):185187.
［11］葛小凤，陈亚军. 锁相放大器对微弱信号的检测研究\[J\]. 信息技术，2016(22):97100.
［12］杨志勇，周召发，黄先祥，等. 基于正弦波磁光调制的方位失调角精确测量方法\[J\]. 光学学报，2012, 32(10):1012001.
［13］周春桂，许爱国，靳合力，等. 多普勒引信信号极值识别算法\[J\]. 中北大学学报（自然科学版），2013, 34(3):310313.
［14］JENQ Y C, CROSBY P B. Sine wave parameter estimation algorithm with application to waveform digitizer effective bits measurement \[J\].IEEE Transactions on Instrumentation & Measurement. 1988, 37(4):529532.
［15］贺光红，韩柯，王昊，等. 面向皮卫星的地球磁场测量系统设计\[J\]. 电子技术应用，2009,35(12):7780.
［16］张钧，柳健，彭复员. 采用MAD算法进行地形匹配的精度分析\[J\]. 华中理工大学学报，2000, 28(7):3537.
［17］丁晓慧，刘俊杰，邢强. 基于自适应局部均值的EMD方法及其在谐波检测中的应用\[J\]. 电力系统保护与控制，2017,45(14):1725.
［18］王敏，赵金宇，陈涛，等. 基于能量函数的极值中值滤波星图去噪算法\[J\]. 电子与信息学报,2017,39(6):13871393.
［19］李阳, 张欣, 张涛, 等. 一种保留图像边缘的自适应中值滤波器算法\[J\]. 通信技术, 2015, 48(12): 13671371.
［20］刘丹，张丕状，马春燕.一种精确判定多普勒信号极值点位置的方法\[J\]. 激光与光电子学进展，2015, 52:070401.

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Research on extremum detection and filtering algorithm of weak light signal

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