Photoelectric detection technology of laser seeker signals  

作　　者：ZHU Likun JIA Fangxiu JIANG Xiaodong LI Xinglong 

机构地区：[1]Minsterial Key Laboratory of ZNDY,Nanjing University of Science and Technology,Nanjing 210094,China [2]CETHIK GROUP CO.,LTD,Hangzhou 310012,China [3]Institute of Chemical Materials,China Academy of Engineering Physics,Mianyang 621900,China

出　　处：《Journal of Systems Engineering and Electronics》2019年第6期1064-1073,共10页系统工程与电子技术（英文版）

基　　金：supported by the National Natural Science Foundation of China(61201391)

摘　　要：The measurement of the rolling angle of the projectile is one of the key technologies for the terminal correction projectile.To improve the resolution accuracy of the rolling angle in the laser seeker weapon system, the imaging model of the detector, calculation model of the position and the signal-to-noise ratio(SNR) model of the circuit are built to derive both the correlation between the resolution error of the rolling angle and the spot position, and the relation between the position resolution error and the SNR. Then the influence of each parameter on the SNR is analyzed at large,and the parameters of the circuit are determined. Meanwhile, the SNR and noise voltage of the circuit are calculated according to the SNR model and the decay model of the laser energy. Finally,the actual photoelectric detection circuit is built, whose SNR is measured to be up to 53 d B. It can fully meet the requirement of0.5° for the resolution error of the rolling angle, thereby realizing the analysis of critical technology for photoelectric detection of laser seeker signals.The measurement of the rolling angle of the projectile is one of the key technologies for the terminal correction projectile.To improve the resolution accuracy of the rolling angle in the laser seeker weapon system, the imaging model of the detector, calculation model of the position and the signal-to-noise ratio(SNR) model of the circuit are built to derive both the correlation between the resolution error of the rolling angle and the spot position, and the relation between the position resolution error and the SNR. Then the influence of each parameter on the SNR is analyzed at large,and the parameters of the circuit are determined. Meanwhile, the SNR and noise voltage of the circuit are calculated according to the SNR model and the decay model of the laser energy. Finally,the actual photoelectric detection circuit is built, whose SNR is measured to be up to 53 d B. It can fully meet the requirement of0.5° for the resolution error of the rolling angle, thereby realizing the analysis of critical technology for photoelectric detection of laser seeker signals.

关 键 词：laser seeker rolling angle error of position signal-to noise ratio(SNR) photoelectric detection. 

分 类 号：TN2[电子电信—物理电子学]