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GUOLi-Xin CHENJian-Jun WUZhen-Sen 《理论物理通讯》2003,40(1):95-100
In this paper, based on the fundamental formulae of the first-order and second-order Kirchhoff approx-imation mad with consideration of the shadowing effect, the backscattering enhancement of the one-dimensional very rough fractal sea surface with Pierson-Moskowitz spectrum is studied under the second-order Kirchhoff approximation at microwave frequency. The numerical results are compared with those of the first-order Kirchhoff approximation and integral equation method. The dependencies of the bistatic scattering cross section and the backscattering enhancement on the incident angle, fractal dimension, and windspeed over the sea surface are analyzed in detail. 相似文献
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福岛核电站发生泄漏至今已两年有余,但是核泄漏带来的危害并没有减少。最近,韩国一家网站发布了一批产自日本的蔬果和花卉照片,照片中水果、蔬菜和花卉有的形状发生畸变,按照媒体的说法,核泄漏的影响似乎已经进入食物 相似文献
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有人说中国古代文明是一种黄色的大陆文明,而以欧美西方发达国家为代表的近现代文明则是一种蔚蓝色的海洋文明。如果说大陆文明是一帧沧桑厚重的历史书卷,那么海洋文明就是驶往现在和未来的快捷的船舶。 相似文献
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