基于PSWF的非正弦时域正交调制信号的同步方法

赵志勇; 王红星; 刘锡国; 刘传辉; 钟佩琳

doi:10.3724/SP.J.1146.2009.01585

基于PSWF的非正弦时域正交调制信号的同步方法

doi: 10.3724/SP.J.1146.2009.01585

计量
- 文章访问数: 3647
- HTML全文浏览量: 97
- PDF下载量: 620
- 被引次数: 0
出版历程
- 收稿日期: 2009-12-11
- 修回日期: 2010-05-20
- 刊出日期: 2010-11-19

Synchronization Method Based on Auxiliary Sequence for Nonsinusoidal Orthogonal Modulation Signal in Time Domain

摘要

摘要: 该文针对基于PSWF的非正弦时域正交调制信号同步困难的问题，通过分析调制信号的脉冲序列特征，提出了一种基于辅助序列的同步方法。采用Barker码调制0阶基带时限PSWF脉冲设计具有单峰值特性的辅助序列。同步捕获时，先采用滑动相关捕获法将同步大致位置快速定位于一个小的搜索区间，再采用MAX/TC算法在这个小的搜索区间内进行准确捕获并验证正确性。理论推导了AWGN条件下的同步捕获性能，仿真结果表明，该同步方法可行，且在低信噪比条件下具有较好的捕获概率。
- 通信 /
- 同步 /
- 非正弦 /
- 椭圆球面波函数 /
- 正交
Abstract: For the issue of the synchronization in nonsinusoidal orthogonal modulation signal in time domain based on Prolate Spheroidal Wave Functions (PSWF), a synchronization algorithm based on auxiliary sequence is proposed by analyzing the pulses sequence characters. The auxiliary sequence with single peak value is designed by using time-limited baseband PSWF pulses with first order modulated by Barker code. Synchronization is firstly achieved to within a reasonable phase sector in short time by using of serial-search slider coherent acquisition, then fine acquisition is achieved and the accuracy is verified by using MAX/TC algorithm. The performance of the synchronization algorithm is derived under the additive white Gaussian noise by theory analysis. The simulation result shows that the proposed synchronization algorithm is feasible and with high acquisition probability under low signal noise ratio.
- Communication /
- Synchronization /
- Nonsinusoidal /
- PSWF (Prolate Spheroidal Wave Functions) /
- Orthogonal

HTML全文

参考文献(1)

王红星, 赵志勇, 刘锡国等. 非正弦时域正交调制方法[P]. 中国专利, 公开号：CN101409697A, 2009.Wang Hong-xing, Zao Zhi-yong, and Liu Xi-guo, et al.. The method of nonsinusoidal orthogonal modulation in timedomain[P]. China Patent, CN101409697A, 2009.[2]王竞, 李道本. 时频二维重叠复用系统[J].电子与信息学报.2008, 30(5):1176-1179浏览[3]Parr B, Cho B, and Wallace K. A novel ultra-wideband pulse design algorithm[J].IEEE Communication Letters.2003, 7(5):219-221[4]Yang L Q, Tian Z, and Giannakis G B. Non-data aided timing acquisition of ultra-wideband transmissions using cyclostationarity[C]. IEEE International Conference on Acoustics, Speech, and Signal Processing, Hong Kong, China, April 2003: 121-124.[5]Yang Liu-qing and Giannakis G B. Timing ultra-wideband signals with dirty templates[J].IEEE Transactions on Communications.2005, 53(11):1952-1963[6]陈国东, 武穆清. 一种基于多频带PSWFs 组合的CUWB 自适应脉冲波形设计[J].电子与信息学报.2008, 30(6):1432-1436浏览[7]沙学军, 邱昕, 王利利. 超宽带正交脉冲波形设计[J].哈尔滨工程大学学报, 2008, 29(7): 718-722.Sha Xue-jun, Qiu Xin, and Wang Li-li. Optimizing orthogonal pulse waveforms for ultra-wideband communications[J]. Journal of Harbin Engineering University, 2008, 29(7):718-722.[8]Yutaka Jitsumatsu and Tohru Kohda. Prolate spheroidal wave functions induce Gaussian chip waveforms[C]. ISIT 2008, Toronto, 2008: 1363-1367.[9]Giovanni Emanuele Corazza. On the MAX/TC criterion for code acquisition and its application to DS-SSMA systems[J].IEEE Transactions on Communications.1996, 44(9):1173-1181[10]Holmes J K and Chen C C. Acquisition time performance of PN spread-spectrum systems[J]. IEEE Transactions on Communications, 1977, COM-25(8): 778-783.[11]Ma Yao, Chin F, and Kannan B, et al.. Acquisition performance of an ultra wide-band communications system over a multiple-access fading channel[C]. IEEE Conference on Ultra Wideband systems and Technologies, Baltimore, USA,2002: 99-103.

施引文献

资源附件(0)

访问统计