非相干扩频测量体制应答机的测距数据处理
介绍了一种非相干扩频测量体制的测距原理,分析了测距跳周问题对测距精度的影响,提出了一种测距数据处理算法。采用相位相差180°的双码钟采样法,对两个码计数和两个码相位进行采样和时差比对,判别出距离跳变的数值进行算法修正,有效消除了码计数对应的距离跳周问题,保证了系统的测距精度。该算法已经成功运用到多个实际工程中,系统测距精度完全满足指标要求。...
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| Published in | 电讯技术 Vol. 57; no. 2; pp. 157 - 160 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国西南电子技术研究所,成都,610036
2017
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| Subjects | |
| Online Access | Get full text |
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| Abstract | 介绍了一种非相干扩频测量体制的测距原理,分析了测距跳周问题对测距精度的影响,提出了一种测距数据处理算法。采用相位相差180°的双码钟采样法,对两个码计数和两个码相位进行采样和时差比对,判别出距离跳变的数值进行算法修正,有效消除了码计数对应的距离跳周问题,保证了系统的测距精度。该算法已经成功运用到多个实际工程中,系统测距精度完全满足指标要求。 |
|---|---|
| AbstractList | 介绍了一种非相干扩频测量体制的测距原理,分析了测距跳周问题对测距精度的影响,提出了一种测距数据处理算法。采用相位相差180°的双码钟采样法,对两个码计数和两个码相位进行采样和时差比对,判别出距离跳变的数值进行算法修正,有效消除了码计数对应的距离跳周问题,保证了系统的测距精度。该算法已经成功运用到多个实际工程中,系统测距精度完全满足指标要求。 TN911; 介绍了一种非相干扩频测量体制的测距原理,分析了测距跳周问题对测距精度的影响,提出了一种测距数据处理算法.采用相位相差180°的双码钟采样法,对两个码计数和两个码相位进行采样和时差比对,判别出距离跳变的数值进行算法修正,有效消除了码计数对应的距离跳周问题,保证了系统的测距精度.该算法已经成功运用到多个实际工程中,系统测距精度完全满足指标要求. |
| Abstract_FL | The theory of a non-coherent spread spectrum ranging system is introduced. The influence of cy―clic skipping on ranging precision is analyzed and a data processing method is presented. The double pseu―do noise ( PN ) clock sampling method with 180 ° phase difference is used to perform sampling and time difference comparison for two PN count numbers and two PN phases. Then the skipping values can be dis―tinguished and corrected,and the cyclic skipping of PN count number value can be removed effectively,so that the system ranging precision is ensured. This method has been successfully applied in many projects and the ranging precision meets the technical specifications. |
| Author | 陈霞 |
| AuthorAffiliation | 中国西南电子技术研究所,成都610036 |
| AuthorAffiliation_xml | – name: 中国西南电子技术研究所,成都,610036 |
| Author_FL | CHEN Xia |
| Author_FL_xml | – sequence: 1 fullname: CHEN Xia |
| Author_xml | – sequence: 1 fullname: 陈霞 |
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| ContentType | Journal Article |
| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DocumentTitleAlternate | Ranging Data Processing of a Non-coherent Spread Spectrum Transponder |
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| Issue | 2 |
| Keywords | 双码钟采样法 非相干扩频测量 cyclic skipping 跳周 ranging data double PN clock sampling method 测距数据 non-coherent spread spectrum measurement |
| Language | Chinese |
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| Notes | noncoherent spread spectrum measurement ; ranging data ; cyclic skipping ; double PN clock sampling method The theory of a non-coherent spread spectrum ranging system is introduced. The influence of cyclic skipping on ranging precision is analyzed and a data processing method is presented. The double pseudo noise （PN） clock sampling method with 180° phase difference is used to perform sampling and time difference comparison for two PN count numbers and two PN phases. Then the skipping values can be dis- tinguished and corrected, and the cyclic skipping of PN count number value can be removed effectively, so that the system ranging precision is ensured. This method has been successfully applied in many projects and the ranging precision meets the technical specifications. CHEN Xia （Southwest China Institute of Electronic Technology,Chengdu 610036, China） 51-1267/TN |
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| PublicationTitle | 电讯技术 |
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| Publisher | 中国西南电子技术研究所,成都,610036 |
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| SubjectTerms | 双码钟采样法 测距数据 跳周 非相干扩频测量 |
| Title | 非相干扩频测量体制应答机的测距数据处理 |
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