An Autofocus Algorithm For Multi-rotor UAV SAR

被引：0

作者：

Shen, Wei ^{[1
]}

He, Xueli ^{[1
]}

Mao, Xinhua ^{[1
]}

Yan, He ^{[1
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Coll Elect & Informat Engn, Nanjing, Jiangsu, Peoples R China

来源：

2017 INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION (ISAP 2017) | 2017年

关键词：

multi-rotor UAV SAR; velocity estimation; wide hewn filter; map drift algorithm;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Multi-rotor LA V is a popular platform for low-cost SAR system because it has small volume, lightweight and flexible motion. However, due to complicated flight trajectory and low-accuracy motion sensor, autofocus in SAR processing becomes a challenging problem. In consideration of the characteristics of multi-rotor LTA V SAR, this paper proposes an autofocus algorithm based on improved Mapdrift technology. The proposed algorithm can estimate the realtime velocity of multi-rotor 1.1,4V SAR and compensate the motion error, and then process the signals with range-Doppler algorithm.

引用

页数：2

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