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http://dx.doi.org/10.6109/jkiice.2008.12.7.1173

A Study on Clutter Cancellation in a Weather Radar System Using a Phased Array Antenna  

Lee, Jong-Gil (인천대학교 정보통신공학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.12, no.7, 2008 , pp. 1173-1179 More about this Journal
Abstract
Since there are very strong clutter returns in airborne and ground weather radars used for the detection of low altitude weather hazards, the reliable weather data cannot be extracted from the weak Doppler weather signal without cancellation of these strong clutter returns. However, the clutter cancellation in Doppler frequency domain is not an easy task since even the fixed clutter returns not to mention the moving clutter can have Doppler shifts due to the antenna rotation and operational environment. Therefore, it was shown in this paper a simple array antenna system can be used for the efficient clutter cancellation in the spatial domain. The weather signal, various moving and fixed clutters were modelled and simulated to prove the performance of this adaptive array system. Also, the degree of accuracy in pulse-pair estimates of a weather radar was compared and analyzed from the simulated weather data.
Keywords
도플리 기상 레이다;적응 안테나;글러터;펄스페어 추정치;
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