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基于实时能量估计的自适应码捕获 被引量：3

Adaptive Code Acquisition Based on Energy Estimation in Real-time
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摘要 提出基于实时能量估计的码捕获自适应门限调整方法,给出了任意L次独立观测时虚警概率和检测概率的表达式。理论分析和计算机仿真结果表明:此方法的虚警概率恒定,比MLAP和0SAP等恒虚警检验方法的性能优越,且适用于多径误落信道条件下的RAKE接收。 Adaptive DS code acquisition threshold decision based on energy estimation in Real-tune is presented in the article, and its expression for detection and false alarm probability under L observation are given in the following. Its false alarm probability is constant with better performance than MLAP and OSAP and can be used in multi-path fading channel, which has been proved by theoretical analysis and computer simulations.
作者 王世练 高凯 张尔扬
机构地区 国防科技大学电子科学与工程学院
出处 《信号处理》 CSCD 北大核心 2005年第3期293-295,共3页 Journal of Signal Processing
关键词 能量估计 码捕获 实时 RAKE接收 虚警概率 自适应门限 调整方法 检测概率 仿真结果 检验方法 表达式 计算机 恒虚警 信道 constant false alarm rate energy estimation adaptive threshold decision
分类号 TN929.533 [电子电信—通信与信息系统] O175.29 [理学—基础数学]
  • 相关文献

参考文献6

  • 1S Chung. A New Serial Search Acquisition Approach With Automatic Decision Threshold Conffol. Proceedings of Vehicular Technology Conference. Chicago, IL. 1995.530-536.
  • 2W W S Jibrail. DS Spread Spectrum signal acquisition using adaptive threshold techniques. International Journal of Communication System. 1998, 11 (5): 297-303.
  • 3张蔚,张宗橙.直接序列扩频捕获的门限调整技术与混合方案[J].江苏通信,2000,16(2):5-9. 被引量：12
  • 4C Kim. Adaptive acquisition of PN code in multiple fading mobile channels. IEE Electronics letters, 17^th Jan 2002, 38(2): 135-137.
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  • 6Rec. ITU-R M. 1225. Guidelines for evaluation of radio transmission technologies for IMT-2000. 1997.

二级参考文献3

  • 1J. Iinatti,P. Lepp?nen. Performance Analysis of DS Signal Code Acquisition Using the Matched Filter and the Median Filter[J] 1998,Wireless Personal Communications(2):93～111
  • 2Gordon J.R. Povey. Spread Spectrum PN Code Acquisition Using Hybrid Correlator Architectures[J] 1998,Wireless Personal Communications(2):151～164
  • 3Mohamed G. El-Tarhuni,Asrar U. Sheikh. Application of Adaptive Filtering to Direct-Sequence Spread-Spectrum Code Acquisition[J] 1998,Wireless Personal Communications(2):185～204

共引文献11

同被引文献22

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  • 4Block F J, Baum C W. Parallel acquisition of multicarrier directsequence spread-spectrum signals in fading and partial-band interference[J].IEEE Trans. on Commun. , 2003,5 (11) : 1877 - 1884.
  • 5Block F J, Baum C W. Parallel acquisition of multicarrier directsequence spread-spectrum signals[J]. IEEE VTC, 1999,1:16 - 20.
  • 6June Moon, Lee Yong-Hwan. Parallel acquisition of PN sequences in Rayleigh fading channel and the application to the multi-carrier CDMA systems[J].IEEE PIMRC, 2001,2 :G- 6 -G-10.
  • 7Swaminathan A, Noneaker D L. A technique to improve the performance of serial, matched-filter acquisition in direct-sequence spread-spectrum packet radio communications [C]//IEEE ICC',2003,4:2542 - 2546.
  • 8Swaminathan A, Noneaker D L. Performance of serial matchedfilter acquisition with adaptive thresholds in direct-sequence packet communications[J].MILCOM, 2002,2:996 - 1001.
  • 9Kim Chang-Joo. Adaptive acquisition of PN code in multipath fading mobile channels[J]. Electronics Letters 17^th January, 2002, 38(2).
  • 10Kim Chang-Joo, Lee Hyuck-Jae. Adaptive acquisition of PN sequences for DSSS communications[J]. IEEE Trans. on Commun, 1998,46(8).

引证文献3

二级引证文献3

信号处理
2005年 第3期

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