This paper describes the mechanism of ionosphere distortion and several correction algorithms. It is important for the improvement of ship target detection in practice.
本文分析了电离层失真的形成机理，并对几种失真校正方法进行了分析和比较，对工程中提高舰船目标的检测能力具有重大的现实意义。
This paper expatiates the notion of image fractal dimension and multi-scale fractal feature, proposes a ship target detection method based on multi-scale fractal feature.
阐述了图像分形维和多尺度分形特征的概念，提出了一种多尺度分形目标检测方法。
When we experiment on mine detection on the sea it is always found that the position of target in echo images is not fixed because of sway of ship and this reduces the veracity of detection.
在海上进行探测水雷的试验中，常常因为船体的摇摆而使回波图像中目标的位置不固定，影响了水雷探测的准确性。
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