InSAR卫星编队构形保持控制方法

doi:10.11947/j.AGCS.2022.20210382

测绘学报 ›› 2022, Vol. 51 ›› Issue (12): 2448-2454.doi: 10.11947/j.AGCS.2022.20210382

• 天绘二号卫星系列专栏 • 上一篇下一篇

InSAR卫星编队构形保持控制方法

陈重华¹, 李楠¹, 完备², 杜耀珂², 王文妍², 孙英梅¹

1. 上海卫星工程研究所, 上海 201109;
2. 上海航天控制技术研究所, 上海 200233

收稿日期:2021-07-09 修回日期:2022-10-09 发布日期:2023-01-12
通讯作者: 李楠 E-mail:lili.china@163.com
作者简介:陈重华(1978-),男,硕士,研究员,研究方向为卫星总体设计技术。E-mail:13761188650@139.com
基金资助:
国家自然科学基金(61601298)

Formation-maintaining control strategy for InSAR satellite

CHEN Chonghua¹, LI Nan¹, WAN Bei², DU Yaoke², WANG Wenyan², SUN Yingmei¹

1. Shanghai Institution of Satellite Engineering, Shanghai 201109, China;
2. Shanghai Institute of Spaceflight Control Technology, Shanghai 200233, China

Received:2021-07-09 Revised:2022-10-09 Published:2023-01-12
Supported by:
The National Natural Science Foundation of China (No.61601298)

摘要/Abstract

摘要： 分布式干涉合成孔径雷达卫星编队构形保持控制精度是影响基线长度,进而影响高程测量精度的关键因素之一。依据编队动力学相对轨道根数描述和分析,在传统脉冲控制方案基础上,结合工程实际补偿了控制过程中相对轨道根数间的耦合影响,优化设计了一种面内、面外独立控制的无偏四脉冲编队保持控制方法,并制定了相应的控制策略。该方法已应用于天绘二号卫星,通过地面仿真及在轨数据证明了方法的正确性,从而有效保证了干涉基线在全球尺度的预期分布,为陆地高程测量任务顺利开展提供保障。

关键词: 编队飞行, 干涉合成孔径雷达, 构形保持控制, 四脉冲控制策略, 天绘二号

Abstract: The control accuracy of distributed interferometric synthetic aperture radar satellite formation configuration maintenance is one of the key factors affecting the baseline length and thus the elevation measurement accuracy. According to the description and analysis of the relative orbital elements of formation dynamics, an unbiased four-pulse formation maintenance control method with independent in-plane and out-of-plane control is optimized and designed based on the traditional pulse control scheme. In particular, the coupling influence between relative orbital roots in the control process is compensated by combining with engineering practice, also the corresponding control strategy is formulated. The method has been applied to TH-2 system, and the correctness of the method has been proved by ground simulation and in-orbit data, so as to effectively ensure the expected distribution of interference baseline and provide guarantee for the smooth development of land elevation survey task.

Key words: formation flying, InSAR, formation-maintaining control, four-impulse strategy, TH-2

中图分类号:

P228.4

陈重华, 李楠, 完备, 杜耀珂, 王文妍, 孙英梅. InSAR卫星编队构形保持控制方法[J]. 测绘学报, 2022, 51(12): 2448-2454.

CHEN Chonghua, LI Nan, WAN Bei, DU Yaoke, WANG Wenyan, SUN Yingmei. Formation-maintaining control strategy for InSAR satellite[J]. Acta Geodaetica et Cartographica Sinica, 2022, 51(12): 2448-2454.

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InSAR卫星编队构形保持控制方法

Formation-maintaining control strategy for InSAR satellite

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