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TDDM-BOC信號(hào)組合碼序列及信息序列盲估計(jì)

陳昌川,  周楊,  張?zhí)祢U

陳昌川, 周楊, 張?zhí)祢U. TDDM-BOC信號(hào)組合碼序列及信息序列盲估計(jì)[J]. 電子與信息學(xué)報(bào), 2016, 38(11): 2760-2766. doi: 10.11999/JEIT160042
引用本文: 陳昌川, 周楊, 張?zhí)祢U. TDDM-BOC信號(hào)組合碼序列及信息序列盲估計(jì)[J]. 電子與信息學(xué)報(bào), 2016, 38(11): 2760-2766. doi: 10.11999/JEIT160042
CHEN Changchuan, ZHOU Yang, ZHANG Tianqi. Blind Estimation of the Combination Code Sequence and Information Sequence for TDDM-BOC Signal[J]. Journal of Electronics & Information Technology, 2016, 38(11): 2760-2766. doi: 10.11999/JEIT160042
Citation: CHEN Changchuan, ZHOU Yang, ZHANG Tianqi. Blind Estimation of the Combination Code Sequence and Information Sequence for TDDM-BOC Signal[J]. Journal of Electronics & Information Technology, 2016, 38(11): 2760-2766. doi: 10.11999/JEIT160042

TDDM-BOC信號(hào)組合碼序列及信息序列盲估計(jì)

doi: 10.11999/JEIT160042
基金項(xiàng)目: 

國(guó)家自然科學(xué)基金(61371164, 61275099, 61102131, 61071196)，重慶市研究生科研創(chuàng)新項(xiàng)目(CYS14140)，重慶郵電大學(xué)研究生教育創(chuàng)新計(jì)劃重點(diǎn)項(xiàng)目(Y201001)

Blind Estimation of the Combination Code Sequence and Information Sequence for TDDM-BOC Signal

Funds: 

The National Natural Science Foundation of China (61371164, 61275099, 61102131, 61071196), Graduate Research and Innovation Projects of Chongqing (CYS14140), Key Project of Graduate Education Innovation Program of Chongqing University of Posts and Telecommunications (Y201001)

  • 摘要: 該文針對(duì)低信噪比下TDDM-BOC(Time Division Data Modulation-Binary Offset Carrier)信號(hào)的組合碼序列(將偽碼序列和副載波序列看成一個(gè)整體序列)及信息序列盲估計(jì)問(wèn)題，提出一種改進(jìn)的基于奇異值分解的方法。該方法首先利用雙信息符號(hào)周期、間隔一信息符號(hào)周期的時(shí)間窗對(duì)接受信號(hào)進(jìn)行分段，并構(gòu)成觀(guān)測(cè)矩陣。然后對(duì)觀(guān)測(cè)矩陣進(jìn)行奇異值分解，通過(guò)左奇異向量實(shí)現(xiàn)組合碼序列的盲估計(jì)。同時(shí)，通過(guò)右奇異向量實(shí)現(xiàn)信息序列的盲估計(jì)。仿真分析表明，該方法能夠在較低的信噪比下達(dá)到精確估計(jì)的目的。這對(duì)于從事衛(wèi)星導(dǎo)航接收機(jī)設(shè)計(jì)具有一定的參考價(jià)值。
    Abstract: For the problem of Time Division Data Modulation-Binary Offset Carrier (TDDM-BOC) modulation signal under low Signal-to-Noise Ratio (SNR), including blind estimation of the combination code sequence and information sequence, a revised method using Singular Value Decomposition (SVD) is proposed. Firstly, the received signal is divided into double-symbol-period-length temporal vectors, with one-symbol-period overlapping, accumulates of these vectors one by one to form the signal matrix. Then, an operation of SVD may be applied to the observation matrix, and the estimation of the combination code sequence is obtained based on the left singular vector. At the same time the information sequence can be estimated through the right singular vector. The simulation results show that the proposed method has accurate estimation performance for the signal at the low SNR. It has a certain reference value for engaging in satellite navigation receiver design.
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    張?zhí)祢U, 周楊, 葉飛. TDDM-BOC信號(hào)副載波類(lèi)型識(shí)別及參數(shù)盲估計(jì)[J]. 系統(tǒng)工程與電子技術(shù), 2016, 38(4): 922-928. doi: 10.3969/j.issn.1001-506x.2016.04.29.
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    張?zhí)祢U, 張婭娟, 吳望軍, 等. 基于改進(jìn)Rake模型的多徑BOC信號(hào)精確捕獲方法[J]. 系統(tǒng)工程與電子技術(shù), 2015, 37(3): 492-497. doi: 10.3969/j.issn.1001-506x.2015.03.03.
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    張?zhí)祢U, 張傳武, 林孝康, 等. 直擴(kuò)信號(hào)偽碼周期及序列的估計(jì)算法[J]. 系統(tǒng)工程與電子技術(shù), 2005, 27(8): 1365-1368. doi: 10.3969/j.issn.1001-506x.2005.04.29.
    ZHANG Tianqi, ZHANG Chuanwu, LIN Xiaokang, et al. Algorithms for period and sequence estimation of the PN code in DS-SS signals[J]. Systems Engineering and Electronics, 2005, 27(8): 1365-1368. doi: 10.3969/j.issn.1001- 506x.2005.04.29.
    詹亞鋒, 曹志剛, 馬正新. DSSS信號(hào)的擴(kuò)頻序列估計(jì)[J]. 電子與信息學(xué)報(bào), 2005, 27(2): 169-172.
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    張?zhí)祢U, 周圣, 高麗, 等. 基于模糊酉矩陣TD-SCDMA突發(fā)信號(hào)組合碼的盲估計(jì)[J]. 電子與信息學(xué)報(bào), 2013, 35(6): 1357-1364. doi: 10.3724/SP.J.1146.2012.01007.
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出版歷程
  • 收稿日期:  2016-01-13
  • 修回日期:  2016-06-08
  • 刊出日期:  2016-11-19

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