| 基于一种新的比特同步算法的数字式Modem |
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| 引用本文： | 顾利民,叶明.基于一种新的比特同步算法的数字式Modem[J].南京航空航天大学学报,1996,28(5):692-696. |
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| 作者姓名： | 顾利民 叶明 |
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| 作者单位： | 南京航空航天大学电子工程系 |
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| 摘 要： | 介绍了一种用于数字Ｍｏｄｅｍ设计的比特同步提取算法以及基于该算法的采用不同调制方式的数字Ｍｏｄｅｍ设计及其硬件实现。算法采用数字频谱分析的方法，在解调之前实现比特同步提取，从而为解调方式的选择提供了很大的灵活性。经原理样机实验证明，基于上述算法设计的数字Ｍｏｄｅｍ具有同步速度快、同步精度高、调制解调方式灵活可变及抗干扰性能好诸多特点
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| 关 键 词： | 调制解调器 同步 相移键控 频移键控 离散傅里叶变换 |
Digital Modem Based on New Algorithm of Bit Synchronization |
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| Gu Limin,Ye Ming.Digital Modem Based on New Algorithm of Bit Synchronization[J].Journal of Nanjing University of Aeronautics & Astronautics,1996,28(5):692-696. |
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| Authors: | Gu Limin Ye Ming |
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| Abstract: | A new algorithm to extract bit synchronization in designing a digital modem is introduced, and its hardware realization for different kinds of modulations based on this algorithm is presented. Methods of digital spectral analysis are adopted in this algorithm. Experiments have proved that this digital modem has the advantages of quick and accurate synchronization, flexibility to various kinds of modulation/demodulation and better performance for anti interference. |
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| Keywords: | modem synchronization phase shift keying frequency shift keying DFT |
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