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| 空间瞬态微光探测中对数域压缩探测方案研究 | |
| 引用本文： | 梁义涛,唐垚,汶德胜,王宏,石兴春.空间瞬态微光探测中对数域压缩探测方案研究[J].光子学报,2014,38(12):3104-3108. |
| 作者姓名： | 梁义涛 唐垚 汶德胜 王宏 石兴春 |
| 作者单位： | (1 河南工业大学 信息学院, 郑州 450001) (2 中国科学院西安光学精密机械研究所,西安 710119) |
| 摘 要： | 针对瞬态微光信号动态范围大、低端信号微弱的特点,提出一种新的对数域压缩探测方案.基于该方案的设计原理分析,选择合适器件,完成电路设计进行实验验证.实验研究表明,该方案可将120 dB的瞬态光信号压缩到0～5 V的范围内,在降低了电路复杂性和功耗的同时,可大大缓解后级数据采集单元的设计压力. |
| 关 键 词： | 光电探测 对数域压缩 瞬态光信号 |
| 收稿时间： | 2008-12-15 |
Logarithm Compression Scheme for Detecting the Transient Feeble Optical Signal from Space |
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| LIANG Yi-Tao,TANG Yao,WEN De-Sheng,WANG Hong,Shi Xin-Chun.Logarithm Compression Scheme for Detecting the Transient Feeble Optical Signal from Space[J].Acta Photonica Sinica,2014,38(12):3104-3108. | |
| Authors: | LIANG Yi-Tao TANG Yao WEN De-Sheng WANG Hong Shi Xin-Chun |
| Institution: | (1 Henan University of Technology,School of Information Science and Engineering,Zhengzhou 450001,China) (2 Xi′an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi′an 710119,China) |
| Abstract: | Based on the properties of transient feeble optical signal,which is the wide dynamic range and the feeble lower limit signal,a novel detecting scheme compressing signal in logarithmic field is presented.After the principle analysis of the scheme,it is implemented to choose appreciate parts,design the circuitry and test.The results indicat that the approach can make transient optical signal ranged 120 dB compress in the range of 0~5 V.And together with the circuitry design simplifies and the dissipation decreases,the troubles at the back data acquisition module can be lessened greatly. |
| Keywords: | Photoelectrical detection Compressing in logarithmic field Transient optical signal |
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