期刊文献+

可控单积累状态序列捕获算法 被引量:2

原文传递
导出
摘要 目前伪随机序列捕获算法在低信噪比、高误码率情况下性能不够理想,尤其在初始捕获相位未知时,传统序列捕获算法性能较差.文中分析了传统捕获算法模型,并且指出在现有序列捕获算法中,因捕获目标序列分散遍历于整个接收序列,造成错误信息重复累积、捕获效率低等问题.为此文中提出单状态累积修正思想,并设计出一种可控单积累状态序列捕获(CSAS-SA)算法,可以控制捕获接收机更有效地积累正确信息.信息累积过程的理论分析及仿真表明,CSAS-SA较现有序列捕获算法在实时性和纠错能力上有较大提高,尤其在信噪比为-3 dB的Gauss白噪声环境下,可提高70%的捕获成功率.
出处 《中国科学(F辑:信息科学)》 CSCD 2009年第10期1104-1111,共8页
基金 新世纪优秀人才支持计划 国家高技术研究发展计划专项课题(批准号:2007AA01Z434)资助项目
  • 相关文献

参考文献7

  • 1Hagenauer J,Offer E,Papke L.Iterative Decoding of Binary Block and Convolutional Codes[].IEEE Transactions on Information Theory.1996 被引量:1
  • 2Ward R.Acquisition of pseudonoise signals by sequential estimation[].IEEE Trans on Communication Technology.1965 被引量:1
  • 3Ward R B,Yiu K P.Acquisition of pseudonoise signals by recursionaided sequential estimation[].IEEE Transactions on Communications.1977 被引量:1
  • 4Kilgus C.C.Pseudo-noise code acquisition using majority logic decoding[].IEEE Transactions on Computers.1973 被引量:1
  • 5Salih M,Tantaratana S.A closed-loop coherent acquisition scheme for PN sequences using an auxiliary sequence[].IEEE Journal on Selected Areas in Communications.2004 被引量:1
  • 6Yang,L.,Hanzo,L.Iterative Soft Sequential Estimation Assisted Acquisition of m-Sequence[].IEEE Transactions on Power Electronics.2002 被引量:1
  • 7Lie-Liang Yang,L Hanzo.Acquisition of m-sequences Using Recursive Soft Sequential Estimation[].IEEE Transactions on Communications.2004 被引量:1

同被引文献24

  • 1刘家胜,黄贤武,朱灿焰,张燕,吕皖丽.基于m序列整数调制和置乱的图像加密算法[J].计算机应用,2007,27(1):118-121. 被引量:3
  • 2CHOI K, TAEJIN J. Adaptive PN code acquisition using instantane- ous power-scaled detection threshold under Rayleigh fading and pulsed Gaussian noise jamming [ J]. IEEE Transactions on Commu- nications, 2002, 50(8) : 1232 - 1235. 被引量:1
  • 3SHEN F, GAI M, WANG Z L, et al. Code acquisition using the lo- cally optimum test statistics in both multiplicative and additive noises [ C]// Proceedings of the 2011 IEEE International Conference on Mechatronics and Automation. Piscataway: IEEE, 2011 : 1174 - 1178. 被引量:1
  • 4YEOM S, JUNG Y, LEE S. An adaptive threshold technique for fast PN code acquisition in DS-SS systems [ J]. IEEE Transactions on Vehicular Technology, 2011, 60(6) : 2870 - 2875. 被引量:1
  • 5LIU Y Z, PAN Y H, YAO F Q. A modified adaptive filtering acqui- sition method for PN code with data modulation [ J]. IEEE Commu- nications Letters, 2011, 15(8) : 869 -871. 被引量:1
  • 6DU X H, ZHANG T Q, GAO Y S, et al. Analysis on PN code ac- quisition performance in DS-SS over multipath en~,ironment [ C]// Proceedings of the 3rd Intemational Congress on Image and Signal Processing. Piscataway: IEEE, 2010:4349-4353. 被引量:1
  • 7SHEN F, GAI M, HE R. PN code acquisition using locally optimum statistics in blind channels [ C]// Proceedings of 3rd International Conference on Advanced Computer Control. Piscataway: IEEE, 2011 : 337 - 340. 被引量:1
  • 8JUSTIN D, IVAN H. PN acquisition for DS/SS using a preloop par- allel binary search phase estimator and a closed-loop selective search subsystem [ J]. IEEE Transactions on Communications, 2004, 3 (2) :408 -417. 被引量:1
  • 9YANG L L, HANZO L. Acquisition of m-sequences using soft se- quential estimation [ J]. IEEE Transactions on Communications, 2004, 52(2) : 199 -204. 被引量:1
  • 10LI H, LU M, FENG Z. Partial-correlation-result reconstruction tech- nique for weak global navigation satellite system long pseudo-noise- code acquisition [ J]. IET Radar Sonar Navigation, 2011, 5(7): 731 -740. 被引量:1

引证文献2

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部