| dc.description.abstract | In June 2007, the TerraSAR-X satellite has been successfully launched in a private public partnership between the German Aerospace Center (DLR) and EADS Astrium GmbH. TerraSAR-X will provide SAR data both for the scientific and commercial community with an extremely high accuracy. The SAR instrument is very versatile by multiple operation modes, adapted to various applications. The calibration of the SAR image is crucial in order to guarantee and verify the SAR data quality. Traditionally the calibration uses passive calibrator and natural targets. However, active radar calibrator (ARC) is preferred for high accuracy application requirement because that provided known system gain, and therefore X-band ARC’s system design with each component specification decided is a major purpose of this study. We through theoretical analyzsis and numerical simulation, an X-band ARC system, including specifications of each component, were designed.
By instrumental configuration and set up under the limited component, experiments were carried out. For ensure quality of experiment, component accurate calibration and systematic performance measurements were needed, Error and accuracy were evaluted. Detail discussion the experimental results are given. | en_US |