摘要
针对低轨遥感卫星双频点极化复用数传模式,研究遥感接收系统设计及工程化应用技术,通过对星地联合隔离度影响进行理论分析、星地无线极化复用试验,验证了极化复用技术实现可行性,采用极化对消解调技术,并通过卫星双点频极化复用模式数据的实际接收试验,验证了卫星极化复用模式数据接收可靠性,实现了双频点四通道极化复用的工程化应用。
With the dual-frequency dual-polarized data transmission mode of LEO remote sensing satellites,this paper studies the design of remote sensing data receiving system and its engineering application.Based on the theoretical analysis of influence of satellite- ground joint isolation and the experiments of satellite-ground dual-polarized wireless link, the feasibility of dual-polarized technology is verified.Based on polarization cancellation demodulation technology and real experiments on data receiving under the dual-frequency four-channel dual-polarized mode, the reliability of dual-polarized technology is verified, and the engineering application of dualfrequency four-channel dual-polarized technology is realized.
作者
徐崇彦
张言锋
闫东磊
XU Chong-yan ZHANG Yan-feng YAN Dong-lei(Beijing Institute of Remote Sensing Information, Beijing 100192, China Space Star Technology Co., Ltd., Beijing 100086, China)
出处
《无线电工程》
2017年第3期75-78,共4页
Radio Engineering
基金
国家部委基金资助项目
关键词
极化复用技术
低轨遥感卫星
极化对消
极化隔离
交叉极化
dual-polarized technology
LEO remote sensing satellite
polarization cancellation
polarization isolation
cross polarization
