A New Method of Pulse Edge Detection in Low SNR

被引：4
|
作者：
Fan, Xiaolei [1 ]
Li, Tao [1 ]
Su, Shaoying [1 ]
Chen, Zengping [1 ]
机构：
[1] Natl Univ Def Technol, Sci & Technol Automat Target Recognit Lab, Changsha 410073, Hunan, Peoples R China
来源：
MIPPR 2015: AUTOMATIC TARGET RECOGNITION AND NAVIGATION | 2015年 / 9812卷
关键词：
pulse edge detection; short time Fourier transform (STFT); difference of boxes (DOB) filter; low signal to noise ratio (SNR);
D O I：
10.1117/12.2205763
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, we propose a new pulse edge detection method based on short time Fourier transform (STFT) and difference of boxes (DOB) filter. Firstly, detect the coarse starting and ending positions in frequency domain after STFT. Then obtain the precise pulse edge through DOB filter. It achieves a better performance than the classical energy detection (ED) method, especially when signal to noise ratio (SNR) is low. Simulation results and real data application validate the effectiveness of the proposed method.
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收藏
页数：7
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