| 摘要: |
| 给出了一种适用于MPSK解调的非数据辅助(NDA)载波频偏估计算法,该算法采用前向开环载波同步方式,与传统的Costas环相比,这种方式具有同步速度快、载波频偏估计范围大的优点,尤其适用于高速突发数字通信系统。理论和实验结果表明,该算法计算量小,复杂度低,抗噪声性能好,适合于工程实现。 |
| 关键词: 数字通信,非数据辅助,载波频偏估计,载波同步,算法 |
| DOI：10.3969/j.issn.1001-893X. |
| 修订日期：2003-07-01 |
| 基金项目: |
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| A Fast Carrier Frequency Estimation Algorithm for Burst Digital Transmission |
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| () |
| Abstract: |
| A Non-Data-Aid(NDA) algorithm to estimate the carrier frequency offset for MPSK signal reception is proposed. The algorithm uses a feedford and open-loop structure. Comparing with the tranditional Costas PLL,the method is very fast, and has a large frequence estimation range, so it is fit for burst digital transmission. Computer simulation shows that its complexity is comparable to exiting method,and it is available in real-time implementation. |
| Key words: Digital communication,NDA,Frequency estimation,Carrier synchronization,Algorithm |
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