The characteristics simulation of FMCW laser backscattering signals

Bohu Liu; Chengtian Song; Yabo Duan

doi:10.1007/s10043-018-0406-7

The characteristics simulation of FMCW laser backscattering signals

Bohu Liu, Chengtian Song^*, Yabo Duan

^*Corresponding author for this work

School of Mechatronical Engineering

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

16 Citations (Scopus)

Abstract

A Monte Carlo simulation model of FMCW laser transmission in a smoke interference environment was established in this paper. The aerosol extinction coefficient and scattering coefficient changed dynamically in the simulation according to the smoke concentration variation, aerosol particle distributions and photon spatial positions. The simulation results showed that the smoke backscattering interference produced a number of amplitude peaks in the beat signal spectrum; the SNR of target echo signal to smoke interference was related to the transmitted laser wavelength and the aerosol particle size distribution; a better SNR could be obtained when the laser wavelength was in the range of 560–1660 nm. The characteristics of FMCW laser backscattering signals generated by simulation are consistent with the theoretical analysis. Therefore, this study was greatly helpful for improving the ability of identifying target and anti-interference in the further research.

Original language	English
Pages (from-to)	197-204
Number of pages	8
Journal	Optical Review
Volume	25
Issue number	2
DOIs	https://doi.org/10.1007/s10043-018-0406-7
Publication status	Published - 1 Apr 2018

Keywords

FMCW
Laser
Mie scattering
Monte Carlo simulation

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10.1007/s10043-018-0406-7

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title = "The characteristics simulation of FMCW laser backscattering signals",

abstract = "A Monte Carlo simulation model of FMCW laser transmission in a smoke interference environment was established in this paper. The aerosol extinction coefficient and scattering coefficient changed dynamically in the simulation according to the smoke concentration variation, aerosol particle distributions and photon spatial positions. The simulation results showed that the smoke backscattering interference produced a number of amplitude peaks in the beat signal spectrum; the SNR of target echo signal to smoke interference was related to the transmitted laser wavelength and the aerosol particle size distribution; a better SNR could be obtained when the laser wavelength was in the range of 560–1660 nm. The characteristics of FMCW laser backscattering signals generated by simulation are consistent with the theoretical analysis. Therefore, this study was greatly helpful for improving the ability of identifying target and anti-interference in the further research.",

keywords = "FMCW, Laser, Mie scattering, Monte Carlo simulation",

author = "Bohu Liu and Chengtian Song and Yabo Duan",

note = "Publisher Copyright: {\textcopyright} 2018, The Optical Society of Japan.",

year = "2018",

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doi = "10.1007/s10043-018-0406-7",

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TY - JOUR

T1 - The characteristics simulation of FMCW laser backscattering signals

AU - Liu, Bohu

AU - Song, Chengtian

AU - Duan, Yabo

PY - 2018/4/1

Y1 - 2018/4/1

N2 - A Monte Carlo simulation model of FMCW laser transmission in a smoke interference environment was established in this paper. The aerosol extinction coefficient and scattering coefficient changed dynamically in the simulation according to the smoke concentration variation, aerosol particle distributions and photon spatial positions. The simulation results showed that the smoke backscattering interference produced a number of amplitude peaks in the beat signal spectrum; the SNR of target echo signal to smoke interference was related to the transmitted laser wavelength and the aerosol particle size distribution; a better SNR could be obtained when the laser wavelength was in the range of 560–1660 nm. The characteristics of FMCW laser backscattering signals generated by simulation are consistent with the theoretical analysis. Therefore, this study was greatly helpful for improving the ability of identifying target and anti-interference in the further research.

AB - A Monte Carlo simulation model of FMCW laser transmission in a smoke interference environment was established in this paper. The aerosol extinction coefficient and scattering coefficient changed dynamically in the simulation according to the smoke concentration variation, aerosol particle distributions and photon spatial positions. The simulation results showed that the smoke backscattering interference produced a number of amplitude peaks in the beat signal spectrum; the SNR of target echo signal to smoke interference was related to the transmitted laser wavelength and the aerosol particle size distribution; a better SNR could be obtained when the laser wavelength was in the range of 560–1660 nm. The characteristics of FMCW laser backscattering signals generated by simulation are consistent with the theoretical analysis. Therefore, this study was greatly helpful for improving the ability of identifying target and anti-interference in the further research.

KW - FMCW

KW - Laser

KW - Mie scattering

KW - Monte Carlo simulation

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M3 - Article

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SN - 1340-6000

VL - 25

SP - 197

EP - 204

JO - Optical Review

JF - Optical Review

IS - 2

ER -

The characteristics simulation of FMCW laser backscattering signals

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Keywords

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