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基于FFT的恒差拍FMCW高度表数字信号处理器设计
Design of FMCW Radar Altimeter Digital Signal Processor Based on FFT and Constant Beat-frequency
【摘要】 针对传统调频连续波(FMCW)雷达高度表模拟信号处理方法精度差、检测能力低、不够灵活等缺点,给出了一种基于快速傅里叶变换(FFT)的恒差拍FMCW雷达高度表数字信号处理器设计方案,实现了信号的全数字化处理,并通过仿真验证了方案的可行性和正确性。
【Abstract】 Because of the low precision,low capability of detection and lack of flexibility of traditional analog radar altimeter signal processing,a design of all-digital radar altimeter signal processor based on FFT and constant beat-frequency modulation is proposed to assure the design with higher precision,higher stability,and higher flexibility.The probability and validity of this design are verified by simulation.
【关键词】 电子技术;
调频连续波;
雷达高度表;
快速傅里叶变换;
恒差拍;
【Key words】 electronic technology; Frequency Modulation Continuous Wave(FMCW); radar altimeter; FFT; constant beat-frequency;
【Key words】 electronic technology; Frequency Modulation Continuous Wave(FMCW); radar altimeter; FFT; constant beat-frequency;
- 【文献出处】 信息与电子工程 ,Information and Electronic Engineering , 编辑部邮箱 ,2009年01期
- 【分类号】TN911.72;TP368.11
- 【被引频次】8
- 【下载频次】267