异步传输模式下电路探测激光回波信号增强  

Enhanced laser echo signal in circuit detection under asynchronous transmission mode

作　　者：冯宇[1,2] 许超 黄兴 马伟哲 刘效禹 FENG Yu;XU Chao;HUANG Xing;MA Wei-zhe;LIU Xiao-yu(Huazhong University of Science and Technology,Wuhan 430074 China;Information and Communication Branch of State Grid Liaoning Electric Power Co.,Ltd.,Shenyang 110006,China)

机构地区：[1]华中科技大学,湖北武汉430074 [2]国网辽宁省电力有限公司信息通信分公司,辽宁沈阳110006

出　　处：《激光与红外》2024年第9期1366-1372,共7页Laser & Infrared

基　　金：国网辽宁电力科技项目(No.2020YF-7);国家电网有限公司科技项目(No.2021YF-86);湖北省自然科学基金项目(No.2020CFB377)资助。

摘　　要：激光回波信号是电路探测传输的常用信号,信号强度是保障集成电路探测效果的关键,因此提出大数据异步传输模式下的电路探测激光回波信号增强方法。利用多权重混合分布模型消除激光回波信号的背景噪声;根据异步传输模式的通信方式,建立激光回波信号接收机,接收保留完整信号信元;利用整形脉冲信号处理方法完成信号累积和自适应匹配滤波,实现大数据异步传输模式下电路探测激光回波信号的增强。实验结果表明,所提方法的信号增强结果在任意波长处的能量和光谱强度均较高。Laser echo signal is a commonly used signal for circuit detection and transmission,and the signal strength is the key to ensure the detection effect of integrated circuits.Therefore,a method for enhancing circuit detection laser echo signal in asynchronous transmission mode of large data is proposed.The background noise of the laser echo signal is eliminated by using the multi-weight mixture distribution model.According to the communication mode of asynchronous transmission mode,a laser echo signal receiver is established to receive and retain complete signal cells.Using shaping pulse signal processing methods to complete signal accumulation and adaptive matched filtering,the enhancement of circuit detection laser echo signals in asynchronous transmission mode of large data is realized.Experimental results show that the signal enhancement results of the proposed method have high energy and spectral intensity at any wavelength.

关 键 词：电路探测 激光回波信号 去噪 异步传输模式 整形脉冲信号处理 

分 类 号：TN247[电子电信—物理电子学] P274[天文地球—测绘科学与技术]