Phase Unwrapping Error Correction for Phase-Derived Velocity Measurement under Low-SNR Conditions

Liyong Guo; Quanhua Liu; Huayu Fan

doi:10.1049/icp.2021.0777

Phase Unwrapping Error Correction for Phase-Derived Velocity Measurement under Low-SNR Conditions

Liyong Guo
, Quanhua Liu^*
, Huayu Fan

^*Corresponding author for this work

School of Information and Electronics

Beijing Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

An algorithm to correct the phase unwrapping error for phase-derived velocity measurement (PDVM) method under low signal-to-noise ratio (SNR) conditions is presented in this paper. The PDVM method for wideband linear frequency-modulated (LFM) radar can measure the velocity of a space target with high-accuracy. Under low-SNR conditions, the phase unwrapping process might occur errors which reduces the accuracy of the measurement. The proposed method analyses the factors affecting the phase unwrapping process under low-SNR conditions and presents an accurate correction for the process. Simulation results demonstrate its effectiveness. The root-mean-square error (RMSE) of the PDVM results was less than 0.025m/s when the SNR was greater than 15.8dB.

Original language	English
Title of host publication	IET Conference Proceedings
Publisher	Institution of Engineering and Technology
Pages	493-497
Number of pages	5
Volume	2020
Edition	9
ISBN (Electronic)	9781839535406
DOIs	https://doi.org/10.1049/icp.2021.0777
Publication status	Published - 2020
Event	5th IET International Radar Conference, IET IRC 2020 - Virtual, Online Duration: 4 Nov 2020 → 6 Nov 2020

Conference

Conference	5th IET International Radar Conference, IET IRC 2020
City	Virtual, Online
Period	4/11/20 → 6/11/20

Keywords

LOW SIGNAL TO NOISE RATIO
PHASE UNWRAPPING
PHASE-DERIVED VELOCITY MEASUREMENT

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10.1049/icp.2021.0777

Cite this

@inproceedings{be08172baed64e55bdfa088455d3f061,

title = "Phase Unwrapping Error Correction for Phase-Derived Velocity Measurement under Low-SNR Conditions",

abstract = "An algorithm to correct the phase unwrapping error for phase-derived velocity measurement (PDVM) method under low signal-to-noise ratio (SNR) conditions is presented in this paper. The PDVM method for wideband linear frequency-modulated (LFM) radar can measure the velocity of a space target with high-accuracy. Under low-SNR conditions, the phase unwrapping process might occur errors which reduces the accuracy of the measurement. The proposed method analyses the factors affecting the phase unwrapping process under low-SNR conditions and presents an accurate correction for the process. Simulation results demonstrate its effectiveness. The root-mean-square error (RMSE) of the PDVM results was less than 0.025m/s when the SNR was greater than 15.8dB.",

keywords = "LOW SIGNAL TO NOISE RATIO, PHASE UNWRAPPING, PHASE-DERIVED VELOCITY MEASUREMENT",

author = "Liyong Guo and Quanhua Liu and Huayu Fan",

note = "Publisher Copyright: {\textcopyright} 2020 IET Conference Proceedings. All rights reserved.; 5th IET International Radar Conference, IET IRC 2020 ; Conference date: 04-11-2020 Through 06-11-2020",

year = "2020",

doi = "10.1049/icp.2021.0777",

language = "English",

volume = "2020",

pages = "493--497",

booktitle = "IET Conference Proceedings",

publisher = "Institution of Engineering and Technology",

address = "United Kingdom",

edition = "9",

}

TY - GEN

T1 - Phase Unwrapping Error Correction for Phase-Derived Velocity Measurement under Low-SNR Conditions

AU - Guo, Liyong

AU - Liu, Quanhua

AU - Fan, Huayu

PY - 2020

Y1 - 2020

N2 - An algorithm to correct the phase unwrapping error for phase-derived velocity measurement (PDVM) method under low signal-to-noise ratio (SNR) conditions is presented in this paper. The PDVM method for wideband linear frequency-modulated (LFM) radar can measure the velocity of a space target with high-accuracy. Under low-SNR conditions, the phase unwrapping process might occur errors which reduces the accuracy of the measurement. The proposed method analyses the factors affecting the phase unwrapping process under low-SNR conditions and presents an accurate correction for the process. Simulation results demonstrate its effectiveness. The root-mean-square error (RMSE) of the PDVM results was less than 0.025m/s when the SNR was greater than 15.8dB.

AB - An algorithm to correct the phase unwrapping error for phase-derived velocity measurement (PDVM) method under low signal-to-noise ratio (SNR) conditions is presented in this paper. The PDVM method for wideband linear frequency-modulated (LFM) radar can measure the velocity of a space target with high-accuracy. Under low-SNR conditions, the phase unwrapping process might occur errors which reduces the accuracy of the measurement. The proposed method analyses the factors affecting the phase unwrapping process under low-SNR conditions and presents an accurate correction for the process. Simulation results demonstrate its effectiveness. The root-mean-square error (RMSE) of the PDVM results was less than 0.025m/s when the SNR was greater than 15.8dB.

KW - LOW SIGNAL TO NOISE RATIO

KW - PHASE UNWRAPPING

KW - PHASE-DERIVED VELOCITY MEASUREMENT

UR - https://www.scopus.com/pages/publications/85174652527

U2 - 10.1049/icp.2021.0777

DO - 10.1049/icp.2021.0777

M3 - Conference contribution

AN - SCOPUS:85174652527

VL - 2020

SP - 493

EP - 497

BT - IET Conference Proceedings

PB - Institution of Engineering and Technology

T2 - 5th IET International Radar Conference, IET IRC 2020

Y2 - 4 November 2020 through 6 November 2020

ER -

Phase Unwrapping Error Correction for Phase-Derived Velocity Measurement under Low-SNR Conditions

Abstract

Conference

Keywords

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