| 一种基于时分复用的卫星接收机结构 |
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| 引用本文： | 许文龙,白栋,尚勇,项海格.一种基于时分复用的卫星接收机结构[J].铁道学报,2005,27(5):120-123. |
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| 作者姓名： | 许文龙 白栋 尚勇 项海格 |
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| 作者单位： | 北京大学,信息科学技术学院卫星通信实验室,北京,100871 |
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| 基金项目： | 武器装备预研基金资助项目（51421060203JW0205）;国家自然科学基金资助项目（N60462002）;国家自然科学基金资助项目（60302006） |
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| 摘 要： | 提出一种星载接收机结构方案。在接收机数量少于星载阵列天线阵元数的条件下,基于较少数量的接收机实现全部阵元输出信号的接收处理。阵列天线划分为虚拟子阵列,基于时分复用工作方式,通过程控交换矩阵与接收机连接,接收机对不同虚拟子阵列天线输出信号分时进行接收处理。给出了接收机结构框图、工作原理和性能仿真结果。
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| 关 键 词： | 卫星通信 阵列信号处理 时分复用(TDM) 阵列天线 虚拟子阵列 |
| 文章编号： | 1001-8360（2005）05-0120-04 |
| 收稿时间： | 2004-06-14 |
| 修稿时间： | 2005-06-12 |
A Satellite-equipped Receiver Architecture Scheme on Time Division Multiplexing |
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| XU Wen-long,BAI Dong,SHANG Yong,XIANG Hai-ge.A Satellite-equipped Receiver Architecture Scheme on Time Division Multiplexing[J].Journal of the China railway Society,2005,27(5):120-123. |
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| Authors: | XU Wen-long BAI Dong SHANG Yong XIANG Hai-ge |
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| Institution: | Satellite Communication Lab, School of lnformaiton Science and Technology, Peking University, Beijing 100871, China |
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| Abstract: | A satellite-equipped receiver architecture scheme is proposed. In the case that the number of receivers has to be less than that of array elements in an array-antenna, it can receive and process the impinged signals on all the array-elements. By dividing the large array antenna into a set of virtual subarray antennas, the receivers are connected to each subarray via a program-controlled switch based on time-division-multiplexing, and process the output snapshots on the subarray-antenna. The receiver's block diagram, flowchart and performance simulation results are given in the paper. |
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| Keywords: | satellite communication array signal processing TDM array antenna virtual subarray |
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