| 基于循环谱包络的BPSK信号码元速率改进估计算法 |
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| 引用本文： | 史建锋,沈辉.基于循环谱包络的BPSK信号码元速率改进估计算法[J].舰船电子对抗,2006,29(5):42-45. |
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| 作者姓名： | 史建锋 沈辉 |
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| 作者单位： | 解放军电子工程学院,合肥,230037;北京军代局,北京,100042;解放军电子工程学院,合肥,230037 |
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| 摘 要： | 采用频域平滑周期图法估计循环谱，分析了循环谱包络的谱特征，推导出了谱峰幅度和位置值，提出了一种基于循环谱包络BPSK信号的码元速率估计的改进算法，给出了信号估计的具体步骤，分析了估计算法的性能．进行了计算机仿真实验。仿真结果表明该估计算法可适用于较低信噪比情况，无需多维搜索。
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| 关 键 词： | 循环 二相编码信号 码元速率 改进算法 |
| 文章编号： | CN32-1413(2006)05-0042-04 |
| 收稿时间： | 2005-11-01 |
| 修稿时间： | 2005年11月1日 |
Innovatory Estimation Algorithm of BPSK Signal Chip-rate Based on Cyclic Spectrum Envelope |
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| SHI Jian-feng,SHEN Hui.Innovatory Estimation Algorithm of BPSK Signal Chip-rate Based on Cyclic Spectrum Envelope[J].Shipboard Electronic Countermeasure,2006,29(5):42-45. |
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| Authors: | SHI Jian-feng SHEN Hui |
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| Affiliation: | 1. Electronic Engineering Institute of PLA, Hefei 230037, Chinas 2. Beijing Military Representative Department, Beijing 100042. China |
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| Abstract: | This paper estimates the cyclic spectrum by means of frequency-domain smoothing symmetrical periodogram,analyzes the spectrum characteristics of cyclic spectrum envelope,educes the magnitudes and positions of spectrum peaks,presentes an innovatory algorithm of chip-rate estimation based on cyclic spectrum envelope BPSK signal,gives the procedure of signal estimation,analyzes the algorithm performance,offeres the computer simulations test.The computer simulations show that this algorithm is suit for the estimation of low signal-to-noise ratio,and needn't multi-dimensional search. |
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| Keywords: | circulation two-phase code signal chip-rate innovatory algorithm |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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