Cascade FFT method with improved LFMCW radar level measurement accuracy

摘要：

In theory, The Linear Frequency Modulated Continuous Wave (LFMCW) radar have a high range measuring accuracy .But in practice, the picket fence effect of the FFT transform, making the range resolution and range accuracy in the same order of magnitude, can not meet the accuracy requirements for the near range measuring . Cascade FFT method is adopted to reduce frequency space of the main lobe of echo range spectrum on the FFT with increasing the less operation .The method can greatly improve the range precision of LFMCW Radar.

关键词： LFMCW Radar Range measuring Cascade FFT

作者: Yu Xiao-min Yi kun Sun zhen-long

作者单位: Qiqihar University, Computing Center Qiqihar, Heilongjiang, China Qiqihar Second Machine Tool (Group) Co., Ltd. Design Institute,Qiqihar, Heilongjiang, China Qiqihar University, Admissions Office Qiqihar, Heilongjiang, China

会议类型: 国际会议

会议名称: 2010 International Asia Conference on Optical Instrument and Measurement(2010年IEEE光学仪器与测量国际会议 ACPIM 2010)

会议地点: 深圳

会议语种:英文

页码: 157-160

在线出版日期: 2010-11-20（万方平台首次上网日期，不代表论文的发表时间）