摘要
介绍了双频段直接检波型微波辐射计,其工作频率为18.7GHz和36.5GHz,每个频率为双极化工作体制。经过性能测试,并与双频段超外差式微波辐射计进行对比。结果表明在性能指标相当的情况下,直接检波型微波辐射计更适于卫星搭载应用。
A dual-band direct detect microwave radiometer is presented. The operating frequencies are 18.7 GHz and 36.5 GHz, and both frequencies are dual-polarization mode. The performance of the dual-band direct detect microwave radiometer had been tested and been compared with the dual-superheterodyne microwave radiometer. The result shows that with the similar performance, the direct detect microwave radiometer has the advantages of smaller size, lower power consumption and lighter weight, and it more suitable for satellite applications.
出处
《科学技术与工程》
2009年第16期4728-4732,4741,共6页
Science Technology and Engineering
关键词
直接检波
双频段
微波辐射计
direct detect dual-band microwave radiometer
