| ABPSK解调中估频校频原理及实现 |
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| 引用本文： | 胡铁乔.ABPSK解调中估频校频原理及实现[J].中国民航学院学报,2006,24(1):46-48,52. |
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| 作者姓名： | 胡铁乔 |
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| 作者单位： | 中国民用航空学院空中交通管理学院,天津300300 |
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| 基金项目： | 国家新技术研究发展基金(863计划) |
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| 摘 要： | 在ABPSK接收采用差分解调时，不可避免地存在频差，严重影响了解调器的性能。论述了估频、校频的原理．提供了利用TMS320C25实现估频（粗估）的流程图，并以600bps的T信道为例详细分析了估频、校频的性能。
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| 关 键 词： | 估频 校频(相位旋转) 差分解调 |
| 文章编号： | 1001-5000（2006）01-0046-03 |
| 收稿时间： | 2005-03-07 |
| 修稿时间： | 2005-03-072005-08-18 |
Estimated Frequency and Phase Rotation Principles and Their Realization in ABPSK |
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| HU Tie-qiao.Estimated Frequency and Phase Rotation Principles and Their Realization in ABPSK[J].Journal of Civil Aviation University of China,2006,24(1):46-48,52. |
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| Authors: | HU Tie-qiao |
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| Institution: | College of A ir Traffic Management, CAUC, Tianjin 300300, China |
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| Abstract: | When ABPSK receiver uses diffenence demodulation, frequency difference will unavoidably exist, thus seriously affecting the performance of demodulator. The paper expounds the principles of estimated frequency and phase rotating and presents the flow diagram of how to use TMS320c 25 to realize estimated frequency. In addition, with the 600bps T channel as an example the paper analyses the functions of estimated frequency and phase rotation in detail. |
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| Keywords: | ABPSK |
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