single polarization meaning in English

单极化

Because of the full target texture and the acute speckle of the microwave - imaging machine , especially for the single frequency , single look and single polarization sar images , it is very difficult to extract image characteristics in the image pixel level
Sar图像地物分类技术的困难性主要源于微波成像的特殊机理和严重的相干斑干扰，使得基于图像象素层的特征提取非常困难。对单视单极化sar图像而言，这个问题更为突出。
The currently available satellites , however , are single polarization , single frequency sensors such as ers - 1 / 2 , radarsat , and jers - 1 . there is a need to develop a technique to estimate soil moisture information from these available data sources at both regional and local scales
传统的测量方法，如重量法测量和时域反射计都是基于点的测量方法，需要实地操作和烦杂的后处理过程，而且无法在要求的时间精度范围内得到地表土壤水分的空间分布信息。