|
|||||
|
|
| 基于APD的“猫眼”目标主动探测系统信噪比分析 | |
| 引用本文： | 张瑜,刘秉琦,周斌,武东生.基于APD的“猫眼”目标主动探测系统信噪比分析[J].激光与红外,2011,41(11):1240-1243. |
| 作者姓名： | 张瑜 刘秉琦 周斌 武东生 |
| 作者单位： | 1. 军械工程学院光学与电子工程系,河北石家庄,050003 2. 军械工程学院光学与电子工程系,河北石家庄050003;解放军71192部队,山东文登264400 3. 军械工程学院光学与电子工程系,河北石家庄050003;北京理工大学光电工程系,北京100081 |
| 摘 要： | 信噪比是表征激光主动探测系统性能的重要指标,通过分析雪崩光电二极管(APD)的噪声来源和离焦“猫眼”目标回波功率,建立了APD探测器的信噪比模型,分析了离焦量、目标距离、激光发散角对APD探测器信噪比的影响,并进行了数值模拟分析,结果表明:离焦量的增大会引起“猫眼”目标回波功率变小,进而使APD探测器信噪比减小；“猫眼... |
| 关 键 词： | 雪崩光电二极管 "猫眼"目标 离焦量 信噪比 |
SNR analysis of cat eye target active laser detection system based on APD |
|
| ZHANG Yu,LIU Bing-qi,ZHOU Bin,WU Dong-sheng.SNR analysis of cat eye target active laser detection system based on APD[J].Laser & Infrared,2011,41(11):1240-1243. | |
| Authors: | ZHANG Yu LIU Bing-qi ZHOU Bin WU Dong-sheng |
| Institution: | Department of Optics and Electronic Engineering,Ordnance Engineering College,Shijiazhuang 050003,China;Army Unit 71192,Wendeng 264400,China;Department of Optical Engineering,Beijing Institute of Technology,Beijing 100081,China |
| Abstract: | Signal to noise ratio(SNR)is an important characteristic of active laser detection system.The signal-noise ratio model of APD is established by analyzing the noise sources of APD and the reflected power of cat eye target with focal shift.The influence factors such as focal shift,detection distance and laser divergence angle to the SNR are analyzed.Then the effects are simulated through numerical computation.The results demonstrate that the reflected power of a cat eye target will attenuate as the focal shif... |
| Keywords: | APD cat eye target focal shift signal to noise ratio(SNR) |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《激光与红外》浏览原始摘要信息 | |
| 点击此处可从《激光与红外》下载免费的PDF全文 | |