地基真实孔径雷达GPRI的精度验证与分析

doi:10.13474/j.cnki.11-2246.2021.0106

测绘通报 ›› 2021, Vol. 0 ›› Issue (4): 28-32.doi: 10.13474/j.cnki.11-2246.2021.0106

地基真实孔径雷达GPRI的精度验证与分析

周春霞^1,2, 温耀辉^1,2, 陈一鸣^1,2, 王绍贤^1,2, 刘勇^1,2, 李明慈^1,2

1. 武汉大学中国南极测绘研究中心, 湖北武汉 430079;
2. 自然资源部极地测绘科学重点实验室, 湖北武汉 430079

收稿日期:2020-07-23 发布日期:2021-04-30
作者简介:周春霞(1977-),女,博士,教授,主要从事雷达干涉测量、极地遥感与全球环境变化等研究。E-mail:zhoucx@whu.edu.cn
基金资助:
国家自然科学基金（41776200；41376187）

Accuracy verification and analysis of ground-based real aperture radar GPRI

ZHOU Chunxia^1,2, WEN Yaohui^1,2, CHEN Yiming^1,2, WANG Shaoxian^1,2, LIU Yong^1,2, LI Mingci^1,2

1. Chinese Antarctic Center of Surveying Mapping, Wuhan University, Wuhan 430079, China;
2. Key Laboratory of Polar Surveying and Mapping, Ministry of Natural Resource of the People's Republic of China, Wuhan 430079, China

Received:2020-07-23 Published:2021-04-30

摘要/Abstract

摘要： GAMMA便携式雷达干涉仪（GPRI-Ⅱ）是一款新型地基真实孔径雷达，可对小范围形变区域进行实时连续监测并探测高频形变。为验证其形变监测精度，本文利用6个角反射器和2个手动位移平台设计了6组试验，分析了GPRI-Ⅱ毫米级和亚毫米级形变探测能力。试验结果表明，通过控制点校正后，探测毫米级形变的中误差小于0.1 mm，探测亚毫米级形变的中误差小于0.05 mm。GPRI-Ⅱ可以对小范围形变区域实现毫米级甚至亚毫米级的观测精度。

关键词: 地基雷达, GPRI, 形变探测, 精度验证, 角反射器

Abstract: GAMMA portable radar interferometer (GPRI-Ⅱ) is a new type of ground-based real-aperture radar. It can continuously monitor small-scale deformation areas in real-time and detect high-frequency deformation. To verify its deformation monitoring accuracy, six sets of experiments were designed by using six corner reflectors and two manual displacement platforms to analyze the deformation detection capabilities of GPRI-Ⅱ at millimeter level and submillimeter level. The experimental results show that after the correction of the control points, the root-mean-square error of detecting millimeter-level deformation is less than 0.1 mm and that of detecting submillimeter-level deformation is less than 0.05 mm. GPRI-Ⅱ can achieve observation accuracy at millimeter or even submillimeter level for small deformation areas.

Key words: ground-based radar, GPRI, deformation detection, accuracy verification, corner reflector

中图分类号:

P237

周春霞, 温耀辉, 陈一鸣, 王绍贤, 刘勇, 李明慈. 地基真实孔径雷达GPRI的精度验证与分析[J]. 测绘通报, 2021, 0(4): 28-32.

ZHOU Chunxia, WEN Yaohui, CHEN Yiming, WANG Shaoxian, LIU Yong, LI Mingci. Accuracy verification and analysis of ground-based real aperture radar GPRI[J]. Bulletin of Surveying and Mapping, 2021, 0(4): 28-32.

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地基真实孔径雷达GPRI的精度验证与分析

Accuracy verification and analysis of ground-based real aperture radar GPRI

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