Title of Paper:An Autofocus Algorithm For Multi-rotor UAV SAR

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Affiliation of Author(s):电子信息工程学院

Journal:2017 INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION (ISAP 2017)

Key Words:multi-rotor UAV SAR velocity estimation wide hewn filter map drift algorithm

Abstract: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.

Translation or Not:no

Date of Publication:2017-01-01

Co-author:Shen, Wei,He, Xueli,YAN HE

Correspondence Author:mxh