Simple VCO nonlinearity correction algorithm based on EMD in FMCW radar system

被引：4
|
作者：
Hong, J. [1 ]
Cheon, C. [1 ]
机构：
[1] Univ Seoul, Sch Elect & Comp Engn, Seoul, South Korea
来源：
ELECTRONICS LETTERS | 2016年 / 52卷 / 17期
关键词：
D O I：
10.1049/el.2016.1986
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A simple software correction algorithm based on the empirical mode decomposition (EMD) algorithm to correct the nonlinearity of a VCO is proposed. The proposed algorithm divides a dechirp signal into mono-component signals using EMD so that the nonlinearity is extracted from the decomposed components in the form of phase distortion. The phase distortion due to nonlinearity is compensated by using the resampling method. As a result, the proposed algorithm corrects the phase distortion without assistance from any additional hardware, thus maintaining simplicity and cost effectiveness. The proposed algorithm is verified by a simulation and an experiment, and it yields well corrected range profiles.
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页码：1484 / 1485
页数：2
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