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利用拟合优度检验的NPLSC-DSSS信号伪码盲估计

赵知劲 强芳芳 李淼 沈雷 王海泉

赵知劲, 强芳芳, 李淼, 沈雷, 王海泉. 利用拟合优度检验的NPLSC-DSSS信号伪码盲估计[J]. 电子与信息学报, 2017, 39(3): 749-753. doi: 10.11999/JEIT160541
引用本文: 赵知劲, 强芳芳, 李淼, 沈雷, 王海泉. 利用拟合优度检验的NPLSC-DSSS信号伪码盲估计[J]. 电子与信息学报, 2017, 39(3): 749-753. doi: 10.11999/JEIT160541
ZHAO Zhijin, QIANG Fangfang, LI Miao, SHEN Lei, WANG Haiquan . Blind Estimation of Pseudo-random Noise Codes in NPLSC-DSSS Signals Based on Goodness of Fit Test[J]. Journal of Electronics & Information Technology, 2017, 39(3): 749-753. doi: 10.11999/JEIT160541
Citation: ZHAO Zhijin, QIANG Fangfang, LI Miao, SHEN Lei, WANG Haiquan . Blind Estimation of Pseudo-random Noise Codes in NPLSC-DSSS Signals Based on Goodness of Fit Test[J]. Journal of Electronics & Information Technology, 2017, 39(3): 749-753. doi: 10.11999/JEIT160541

利用拟合优度检验的NPLSC-DSSS信号伪码盲估计

doi: 10.11999/JEIT160541
基金项目: 

国家自然科学基金(61571172)

Blind Estimation of Pseudo-random Noise Codes in NPLSC-DSSS Signals Based on Goodness of Fit Test

Funds: 

The National Natural Science Foundation of China (61571172)

  • 摘要: 针对非周期短码扩频长码加扰直扩(NPLSC-DSSS)信号的伪码估计问题,该文首先给出了m序列三阶相关函数(TCF)共同峰理论和NPLSC-DSSS信号TCF估计量的概率函数。其次,利用TCF峰的共轭系特性构建了TCF峰值序列,提出了TCF共同峰检测的二元假设模型和利用拟合优度检验的TCF共同峰精检测算法。同时,为提高伪码估计性能,该文利用正反向TCF三阶相关峰性质和共轭系TCF峰值点累加和递增性质排除大量伪峰。最后通过矩阵斜消法实现长短伪码的盲估计。仿真结果表明,该文方法在低信噪比条件下能够有效估计NPLSC-DSSS信号的伪随机码。
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出版历程
  • 收稿日期:  2016-05-06
  • 修回日期:  2016-10-31
  • 刊出日期:  2017-03-19

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