二次多项式星载InSAR 基线优化估计

doi:10.3969/j.issn.0255-8297.2014.04.011

Abstract

Abstract: Baseline is an important parameter in synthetic aperture radar interferometry (InSAR). Tiny errors in length and inclination of the baseline can cause a great error of the interferometric phase, and eventually affect accuracy of the spatial information. This paper proposes a method to optimize estimation of baseline by using quadratic multi-polynomial aimed at unwrapped phase to eliminate the interferometric phase influence caused by the baseline error. TerraSAR-X, COSMO-SkyMed, RadarSat-2 and ASAR images are used to verify effectiveness of the proposed method.

Key words: synthetic aperture radar, baseline, optimization, polynomial fitting, satellite orbit

CLC Number:

P236

ZHANG Guo1,2, ZHENG Yu-zhi1. Optimization Estimation for Spaceborne InSAR Baseline Using Quadratic Polynomial[J]. Journal of Applied Sciences, 2014, 32(4): 409-415.

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Optimization Estimation for Spaceborne InSAR Baseline Using Quadratic Polynomial

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