| 外测转发器＜ns级精度＞群时延参数的测试 |
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| 引用本文： | 罗碧先,罗健.外测转发器＜ns级精度＞群时延参数的测试[J].导弹与航天运载技术,1995(2). |
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| 作者姓名： | 罗碧先 罗健 |
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| 作者单位： | 北京遥测技术研究所 |
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| 摘 要： | 简述了利用ＧＰＳ测量系统进行外测定轨的重要性，阐明了国内外达到的测试水平和存在的问题，提出了有效解决测试精度的脉冲调制解调技术，采用测量时间间隔代替相位测量，能有效地使同频与不同频系统达到ｎｓ级群时延测量精度，可以帮助解决ＧＰＳ系统校零的难题。
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| 关 键 词： | ~＋群时延，频率变换，全球定位系统，~＋模拟内插法 |
Measurement of Group Delay at ns Level Precision in Exterior Ballitic Measurement |
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| Luo Bixian, Luo Jian.Measurement of Group Delay at ns Level Precision in Exterior Ballitic Measurement[J].Missiles and Space Vehicles,1995(2). |
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| Authors: | Luo Bixian Luo Jian |
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| Affiliation: | Beijing Research Institute of Telemetry |
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| Abstract: | The importance of measuring the exterior ballistic using GPS measurement system is briefly described. The level and problem of the measurement in the world are expounded and the pluse modulation and demodulation technology that may raise the measurement precision is put foeward.The precision can be raised to ns level, and the difficulty of GPS measuerment system in system zero value corretion can be solved by measuring the time interval instead of measuring phase. |
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