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发明公开
CN102768356A 一种利用多时相雷达数据检测海上静止目标的方法 失效 - 权利终止

一种利用多时相雷达数据检测海上静止目标的方法
摘要：
本发明涉及一种利用多时相雷达数据检测海上静止目标的方法。该方法使用的数据为多时相的ENVISATASAR影像，首先对于多景ENVISATASAR数据使用基于双参数的恒虚警率（CFAR）算法提取海上目标，针对ENVISATASAR数据提出了优选的算法参数，使得双参数CFAR适用于ENVISATASAR数据。对于多时相的海上目标，使用一种基于RANSAC算法的海上目标点匹配方法进行匹配，经匹配后的点目标中相互重合的点就为海上静止目标。该方法能够有效地检测海上钻井平台等海上静止目标，从而快速、及时、准确地监测海域石油开发等资源和环境状况。
摘要（英）：

The invention relates to a method for detecting ocean stationary targets by multi-temporal radar data. The data utilized by the method are multi-temporal ENVISAT ASAR (advanced synthetic aperture radar) images. Ocean targets are extracted by the CFAR (constant false alarm rate) algorithm based on double parameters for multi-view ENVISAT ASAR data, an optimized algorithm parameter is provided for the ENVISAT ASAR data, and accordingly the double-parameter CFAR is suitable for the ENVISAT ASAR data. The multi-temporal ocean targets are matched by an ocean target point matching method based on the RANSAC (random sample consensus) algorithm, and points, which coincide with each other, are the ocean stationary targets. Therefore, ocean stationary targets of offshore drilling and the like can be detected effectively, and resources of offshore oil development and the like and environment conditions are monitored quickly, timely and accurately.

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