Summary
International Symposium on Antennas and Propagation
2015
Session Number:S1.12
Session:
Number:S1.12.7
Optimal Cross-Range Pattern Synthesis Using Multi-Objective Genetic Algorithm for a Passive Antenna in Small Satellite SAR
Vinay Ravindra, Hirobumi Saito, Prilando Akbar, Miao Zhang, Jiro Hirokawa,
pp.-
Publication Date:2015/11/9
Online ISSN:2188-5079
Summary:
In synthetic aperture radar application, image artifacts due to azimuthal ambiguity, not-uniform main lobe antenna gain are common. They can be reduced to a certain extent by synthesizing the appropriate antenna pattern in cross-range direction. Our small satellite mission “microXSAR” carries an X-Band SAR instrument as payload, with a waveguide fed passive antenna. In this paper we describe the synthesis of the cross-range pattern of the SAR antenna by treating it as a multi-objective optimization problem. We use non-dominated sorting algorithm NSGA-II as the optimization algorithm. The result is a pareto-curve giving all possible non-dominated solutions.