| Applications of digital if receivers and under-sampling technique in ladar | |
| SongZhi-Yuan; ZhuShao-Lan; DongLi-Jun; FengLi; HeHao-Dong; Song Zhiyuan | |
| 2011 | |
| 会议名称 | International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging |
| 会议录名称 | Proceedings of SPIE - The International Society for Optical Engineering |
| 页码 | 819249 |
| 会议日期 | May 24, 2011 - May 26, 2013 |
| 会议地点 | Beijing, China |
| 出版地 | P.O. Box 10, Bellingham, WA 98227-0017, United States |
| 出版者 | SPIE |
| 会议主办者 | Chinese Society of Astronautics (CAS) |
| 产权排序 | 1 |
| 摘要 | The traditional technique of phase laser range finder is mixing high frequency signals with analog circuits and filtering them to obtain the useful signal with low frequency. But the analog mixing circuits are susceptible to interference and will bring amplitude attenuation, phase jitter and offset and this way has difficulties in achieving high precision ranging and fast speed ranging at the same time. The method of this paper is based on under-sampling technique with digital synchronous detection and referring to Digital down converter technique of digital IF receiver in radar system. This method not only reduces the complexity of data processing, improves the speed and accuracy of phase detection at the same time, but also reduces requirements for ADC devices and DSP chips in the ladar system by a lower sampling rate. At the same time, the structure of electronic system is global simplified compared with traditional analog ladar system and the anti-jamming is greatly enhanced. So this method has important research value. |
| 关键词 | Ladar Digital If Receiver Under-sampling Digital Down-converter |
| 作者部门 | 瞬态光学国家重点实验室 |
| 收录类别 | EI |
| 语种 | 英语 |
| ISSN号 | 0277-786X |
| 文献类型 | 会议论文 |
| 条目标识符 | http://ir.opt.ac.cn/handle/181661/20170 |
| 专题 | 瞬态光学研究室 |
| 通讯作者 | Song Zhiyuan |
| 推荐引用方式 GB/T 7714 | SongZhi-Yuan,ZhuShao-Lan,DongLi-Jun,et al. Applications of digital if receivers and under-sampling technique in ladar[C]. P.O. Box 10, Bellingham, WA 98227-0017, United States:SPIE,2011:819249. |
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