| 一种通信卫星在轨测试中群时延特性测量方法及工程实现 |
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| 引用本文： | 张玉峰. 一种通信卫星在轨测试中群时延特性测量方法及工程实现[J]. 电讯技术, 2008, 48(1): 94-97 |
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| 作者姓名： | 张玉峰 |
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| 作者单位： | 北京跟踪与通信技术研究所,北京,100094 |
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| 摘 要： | 讨论了群时延的概念及群时延的测试原理和方法,并在通信卫星在轨测试的工程实现中,针对卫星转发器频段多及Ka频段转发器频率较高的特点,重点描述了综合群时延测试的方案设计及实现。经工程验证,该方法提高了在轨测试的效率和群时延测试精度。
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| 关 键 词： | 通信卫星 转发器 群时延特性 在轨测试 微波系统分析仪 |
| 文章编号： | 1001-893X（2008）01-0094-04 |
| 收稿时间： | 2007-09-10 |
| 修稿时间： | 2007-11-28 |
Group Delay Specification Measurement in Payload IOT of Communication Satellite and Engineering Implementation |
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| ZHANG Yu-feng. Group Delay Specification Measurement in Payload IOT of Communication Satellite and Engineering Implementation[J]. Telecommunication Engineering, 2008, 48(1): 94-97 |
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| Authors: | ZHANG Yu-feng |
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| Abstract: | This paper discusses the concepti of Group Delay(GD),and analyses the principle and method of GD measurement in detail.It gives a design method for measuring the GD in IOT(In Orbit Test) for multi-band payload including Ka-band of the satellite communication in practical application.Practical measurement proves that the method improves the IOT efficiency and GD test accuracy. |
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| Keywords: | communication satellite transponder group delay(GD)characteristics in orbit test(IOT) microwave system analyzer (MSA) |
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