| 背景辐射功率对星载激光高度计信噪比的影响研究 |
| |
| 引用本文： | 黄庚华,欧阳俊华,舒嵘,王建宇,薛永祺.背景辐射功率对星载激光高度计信噪比的影响研究[J].红外与毫米波学报,2009,28(1):58-61. |
| |
| 作者姓名： | 黄庚华 欧阳俊华 舒嵘 王建宇 薛永祺 |
| |
| 作者单位： | 中国科学院上海技术物理研究所,上海,200083 |
| |
| 摘 要： | "嫦娥一号"卫星的有效载荷激光高度计通过测量发射与接收信号之间的时间间隔,获得星-月距离数据.本文分析了背景辐射功率、倍增因子与激光高度计最佳信噪比之间的关系,并利用积分球进行了不同背景辐射功率下的信噪比试验,验证了背景辐射功率以及雪崩二极管倍增因子对接收系统信噪比的影响.结果表明,在不同的背景辐射功率条件下,存在不同的最佳倍增因子,使接收系统获得最大信噪比.
|
| 关 键 词： | 星载激光高度计 背景辐射功率 雪崩二极管 倍增因子 信噪比 |
| 收稿时间： | 2008/1/21 |
INFLUENCE OF BACKGROUND RADIANT POWER ON THE SIGNAL-TO-NOISE RATIO OF SPACE-BORNE LASER ALTIMETER |
| |
| HUANG Geng-Hu,OUYANG Jun-Hu,SHU Rong,WANG Jian-Yu,XUE Yong-Qi.INFLUENCE OF BACKGROUND RADIANT POWER ON THE SIGNAL-TO-NOISE RATIO OF SPACE-BORNE LASER ALTIMETER[J].Journal of Infrared and Millimeter Waves,2009,28(1):58-61. |
| |
| Authors: | HUANG Geng-Hu OUYANG Jun-Hu SHU Rong WANG Jian-Yu XUE Yong-Qi |
| |
| Institution: | Shanghai Institute of Technical Physics;Chinese Academy of Sciences;Shanghai 200083;China |
| |
| Abstract: | The Chang'E lunar observation laser altimeter was designed to provide precise altimeter data to accurately map the lunar surface by measuring the time interval between the emission and receiving signal.The relationships of the background radiant power,the multiplication factor,and the optimum signal-to-noise ratio of the receiving system were analyzed.The signal-to-noise ratio experiment for different background radiant power was conducted by using the integrating sphere.The influences of background radiant... |
| |
| Keywords: | space-borne laser altimeter background radiant power avalanche photo diode(APD) multiplication factor signal-to-noise ratio |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《红外与毫米波学报》浏览原始摘要信息 |
| 点击此处可从《红外与毫米波学报》下载免费的PDF全文 |
