Research on High Range Precision Arithmetic of LFMCW Ladar

摘要：

The linear frequency modulation continuous wave (LFMCW) Laser Radar (Ladar) acquires target range information by frequency spectrum analysis. The LFMCW Ladar has high theoretical range precision. But because it acquires the range information from its power spectrum through digital signal processing which is limited by the data length, its practical system has lower practical range precision approximating to its range resolution. This paper presents an adapted Zoom-FFT (ZFFT) algorithm to increase frequency resolution by thinning the band which encloses the intermediate frequency of target range. Without adding to much operation, it could increase rang precision obviously.

关键词： LFMCW ZFFT

作者: Wang Qiao Zhao jiguang Du Xiaoping Zeng Dexian

作者单位: The Academy of Equipment Command & Technology. Beijing, 101416, China

会议类型: 国际会议

会议名称: 第七届国际测试技术研讨会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-05（万方平台首次上网日期，不代表论文的发表时间）