Fog backscattering interference suppression algorithm for FMCW laser fuze based on normalized frequency spectrum threshold

Wei Zhang; Yinlin Li; Zhonghua Huang; Chao Ma

doi:10.1016/j.ijleo.2016.11.084

Fog backscattering interference suppression algorithm for FMCW laser fuze based on normalized frequency spectrum threshold

Wei Zhang, Yinlin Li, Zhonghua Huang^*, Chao Ma

^*Corresponding author for this work

School of Mechatronical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

Fog backscattering can cause false alarm for laser fuze. The characteristics of the target echo signal and the fog echo signal of FMCW laser fuze are comparatively analyzed. Based on the frequency domain feature of beat signal in these two cases, a fog backscattering suppression method based on the normalized frequency spectrum threshold of beat signal is proposed. Experimental results from simulated laboratory environment showed that the algorithm can identify the target and the fog interference with the correct rate of 91%. This algorithm provides a new method to suppress the fog backscattering for the frequency modulated continuous wave laser fuze.

Original language	English
Pages (from-to)	188-193
Number of pages	6
Journal	Optik
Volume	131
DOIs	https://doi.org/10.1016/j.ijleo.2016.11.084
Publication status	Published - 1 Feb 2017

Keywords

FMCW laser fuze
False alarm
Fog backscattering interference suppression
Normalized frequency spectrum threshold
Spread spectrum

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10.1016/j.ijleo.2016.11.084

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title = "Fog backscattering interference suppression algorithm for FMCW laser fuze based on normalized frequency spectrum threshold",

abstract = "Fog backscattering can cause false alarm for laser fuze. The characteristics of the target echo signal and the fog echo signal of FMCW laser fuze are comparatively analyzed. Based on the frequency domain feature of beat signal in these two cases, a fog backscattering suppression method based on the normalized frequency spectrum threshold of beat signal is proposed. Experimental results from simulated laboratory environment showed that the algorithm can identify the target and the fog interference with the correct rate of 91%. This algorithm provides a new method to suppress the fog backscattering for the frequency modulated continuous wave laser fuze.",

keywords = "FMCW laser fuze, False alarm, Fog backscattering interference suppression, Normalized frequency spectrum threshold, Spread spectrum",

author = "Wei Zhang and Yinlin Li and Zhonghua Huang and Chao Ma",

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AU - Zhang, Wei

AU - Li, Yinlin

AU - Huang, Zhonghua

AU - Ma, Chao

PY - 2017/2/1

Y1 - 2017/2/1

N2 - Fog backscattering can cause false alarm for laser fuze. The characteristics of the target echo signal and the fog echo signal of FMCW laser fuze are comparatively analyzed. Based on the frequency domain feature of beat signal in these two cases, a fog backscattering suppression method based on the normalized frequency spectrum threshold of beat signal is proposed. Experimental results from simulated laboratory environment showed that the algorithm can identify the target and the fog interference with the correct rate of 91%. This algorithm provides a new method to suppress the fog backscattering for the frequency modulated continuous wave laser fuze.

AB - Fog backscattering can cause false alarm for laser fuze. The characteristics of the target echo signal and the fog echo signal of FMCW laser fuze are comparatively analyzed. Based on the frequency domain feature of beat signal in these two cases, a fog backscattering suppression method based on the normalized frequency spectrum threshold of beat signal is proposed. Experimental results from simulated laboratory environment showed that the algorithm can identify the target and the fog interference with the correct rate of 91%. This algorithm provides a new method to suppress the fog backscattering for the frequency modulated continuous wave laser fuze.

KW - FMCW laser fuze

KW - False alarm

KW - Fog backscattering interference suppression

KW - Normalized frequency spectrum threshold

KW - Spread spectrum

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DO - 10.1016/j.ijleo.2016.11.084

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SN - 0030-4026

VL - 131

SP - 188

EP - 193

JO - Optik

JF - Optik

ER -

Fog backscattering interference suppression algorithm for FMCW laser fuze based on normalized frequency spectrum threshold

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Keywords

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