无线电工程Issue(1)：20-25,6.DOI:10.3969/j.issn.1003-3106.2015.01.06
四种提高FMCW测距精度的方案及性能分析
Performance Analysis of Four Schemes Improving Ranging Precision of FMCW Radar
摘要
Abstract
Based on the design requirements of range resolution and ranging precision of FMCW radar,the main factors that influ⁃ence the range resolution and ranging precision of FMCW radar are found out through theoretical analysis,and it is concluded that spec⁃trum zooming is an useful method to improve the system ranging precision by reducing the frequency quantization unit. The theory and performance of four most representative spectrum zooming schemes are analyzed,which are sampling sequence zero padding,Zoom⁃FFT, Chirp⁃Z transform and FFT⁃DTFT binding methods.The four methods are horizontally compared with respect to the consumption of com⁃putation and storage space on engineering implementation,and some recommendations about the application of these methods are provid⁃ed,which are of great significance for engineering design.关键词
FMCW雷达/测距精度/频谱细化/频率细化Key words
FMCW radar/ranging precision/spectrum zoom/frequency zoom分类
信息技术与安全科学引用本文复制引用
朱恺,秦轶炜,许建中,万夕干,陈煜..四种提高FMCW测距精度的方案及性能分析[J].无线电工程,2015,(1):20-25,6.基金项目
国家国际科技合作专项基金资助项目（2012DFB10200）。 （）
