卫星遥测CDMA实现中截短码的选择

2018 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS) Pub Date : 2018-12-01 DOI:10.1109/ANTS.2018.8710054

V. Rohit, Aashish Kumar, V. Ravichandran, S. Sudhakar, S. Udupa

{"title":"卫星遥测CDMA实现中截短码的选择","authors":"V. Rohit, Aashish Kumar, V. Ravichandran, S. Sudhakar, S. Udupa","doi":"10.1109/ANTS.2018.8710054","DOIUrl":null,"url":null,"abstract":"The CCSDS standard for CDMA services between Data Relay (GEO) and LEO satellites can optionally be used by a member agency for direct-to-earth link. In the return services related to Non-coherent mode of this standard, the possible modulation for DG1 Mode 2 is SS-BPSK and length of each code is 2047 bits.In this paper, we explain a method which deals with derivation of a code set with truncated lengths from a code set of standard length (2047 bits), for suitability to hardware realization. The degradation in the cross correlation property of the codes caused due to truncation is mitigated by our method of optimizing on the cross correlation protection achieved through computer search for appropriate codes from this derived code set.","PeriodicalId":273443,"journal":{"name":"2018 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS)","volume":"355 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Selection of truncated codes for implementation of Telemetry CDMA in Satellites\",\"authors\":\"V. Rohit, Aashish Kumar, V. Ravichandran, S. Sudhakar, S. Udupa\",\"doi\":\"10.1109/ANTS.2018.8710054\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The CCSDS standard for CDMA services between Data Relay (GEO) and LEO satellites can optionally be used by a member agency for direct-to-earth link. In the return services related to Non-coherent mode of this standard, the possible modulation for DG1 Mode 2 is SS-BPSK and length of each code is 2047 bits.In this paper, we explain a method which deals with derivation of a code set with truncated lengths from a code set of standard length (2047 bits), for suitability to hardware realization. The degradation in the cross correlation property of the codes caused due to truncation is mitigated by our method of optimizing on the cross correlation protection achieved through computer search for appropriate codes from this derived code set.\",\"PeriodicalId\":273443,\"journal\":{\"name\":\"2018 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS)\",\"volume\":\"355 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2018 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ANTS.2018.8710054\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ANTS.2018.8710054","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

摘要

用于数据中继(GEO)和低轨道卫星之间CDMA服务的CCSDS标准可以由成员机构选择性地用于直接到地球的链路。在本标准中与非相干模式相关的返回业务中，DG1模式2的可能调制为SS-BPSK，每个码的长度为2047位。在本文中，我们解释了一种从标准长度(2047位)的代码集中推导出具有截断长度的代码集的方法，以适合硬件实现。我们的方法通过计算机从该派生代码集中搜索合适的代码来优化相互关联保护，从而减轻了由于截断引起的代码相互关联性能的下降。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Selection of truncated codes for implementation of Telemetry CDMA in Satellites

The CCSDS standard for CDMA services between Data Relay (GEO) and LEO satellites can optionally be used by a member agency for direct-to-earth link. In the return services related to Non-coherent mode of this standard, the possible modulation for DG1 Mode 2 is SS-BPSK and length of each code is 2047 bits.In this paper, we explain a method which deals with derivation of a code set with truncated lengths from a code set of standard length (2047 bits), for suitability to hardware realization. The degradation in the cross correlation property of the codes caused due to truncation is mitigated by our method of optimizing on the cross correlation protection achieved through computer search for appropriate codes from this derived code set.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

2018 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS)

自引率

0.00%

发文量