Engineering Research Equipment Grant: Millimeter Wave Polarimetry

微波极化雷达（极化仪）刚刚显示 作为科学仪器， 感应自然表面和体积目标。 的优点 偏振测量应扩展到更高的频率，如毫米波 设备技术进步。 特别是毫米波 旋光仪将有助于检测毫米级的微小 水、冰、叶状和非叶状地形表面的特征。 它们也将被用来进行自然体积的科学研究 雨、雪和云细胞等目标。 大学 马萨诸塞州已经开发了95和225 GHz偏振计， 希望在与其他大学的合作研究项目中使用 其他企事业单位提供 工程研究设备补助金 提供资金重新配置95 GHz偏振计， 精确测量自然表面的散射行为， 大气体积目标。 新天线，天线定位 开发适当数据所需的系统和设备 采集系统提供，这将用于各种 实地测量计划。

Microwave polarimetric radars (polarimeters) are just now showing great promise as scientific instruments that are capable of remotely sensing natural surface and volume targets. The advantages of polarimetry should extend to higher frequencies as millimeter wave device technology advances. In particular, millimeter wave polarimeters will be useful in sensing the fine millimeter-sized features of water, ice, and foliated and unfoliated terrain surfaces. They will also be used to conduct scientific studies of natural volume targets such as rain, snow and cloud cells. The University of Massachusetts has developed 95 and 225 GHz polarimeters, which it hopes to use in cooperative research projects with other universities and government agencies. This Engineering Research Equipment Grant provides funds to reconfigure the 95 GHz polarimeter so that it can accurately measure the scattering behavior of natural surfaces and atmospheric volume targets. New antennas, an antenna positioning system, and equipment needed to develop an appropriate data acquisition system are provided, which will be used in a variety of field measurement programs.