The High Precision Frequency Measurement Base on Direction Estimation System

摘要：

Frequency estimation plays a crucial role in direction estimation system,of which the measurement error may directly influence the reliability of orientation measurement results. Consequently, to improve the precision of frequency estimation becomes very necessary. This article describes the eansing of barrier affection, analyses the characteristic of CZT (Chrip-Z transform), and proposes a hybrid method that combines FFT with CZT to estimate signal frequency.And finally,it makes use of Matlab to simulate in order to validate this method.

关键词： Frequency Estimation FFT CZT

作者: Yu Zhi-yong Zhuang Xin-wu Yu Jian

作者单位: The Second Artillery engineering college,Xian Shah Xi,P.R.China 710025

会议类型: 国际会议

会议名称: Asia-Pacific Conference on Environmental Electromagnetics CEEM2009(第五届亚太环境电磁学学术会议)

会议地点: 西安

会议语种:英文

页码: 264-267

在线出版日期: 2009-09-16（万方平台首次上网日期，不代表论文的发表时间）