| 基于倾斜相位的CPM信号调制解调设计 |
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| 引用本文： | 陈 飞,窦高奇,高 俊,万志毅. 基于倾斜相位的CPM信号调制解调设计[J]. 通信技术, 2015, 48(5): 541-545. DOI: 10.3969/j.issn.1002-0802.2015.05.007 |
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| 作者姓名： | 陈 飞 窦高奇 高 俊 万志毅 |
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| 作者单位： | 1. 海军工程大学电子工程学院,武汉 430033;2. 73698部队,南京 210000 |
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| 摘 要： | 连续相位调制(CPM)信号是一种具有高频谱效率和功率效率的恒包络调制技术,但基于传统相位网格的CPM信号调制解调算法复杂度高、计算量大。提出了一种基于倾斜相位网格的CPM调制解调算法,通过分析CPM相位网络图和分解模型,给出了CPM信号倾斜相位网格设计、状态存储、初始化及译码的实现方法,相比传统相位,该算法更加简洁、计算量更小,并通过仿真验证了设计方案的正确性。
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| 关 键 词： | CPM 倾斜相位 调制解调 Vterbi译码 |
CPM Signals Modulation and Demodulation based on Tilted Phase |
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| CHEN Fei,DOU Gao-qi,GAO Jun,WAN Zhi-yi. CPM Signals Modulation and Demodulation based on Tilted Phase[J]. Communications Technology, 2015, 48(5): 541-545. DOI: 10.3969/j.issn.1002-0802.2015.05.007 |
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| Authors: | CHEN Fei DOU Gao-qi GAO Jun WAN Zhi-yi |
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| Affiliation: | 1.College of Electronic Engineering, Naval University of Engineering,Wuhan Hubei 430033,China;2.Unit 73698 of PLA,Nanjing Jiangsu 210000,China |
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| Abstract: | CPM (Continuous Phase Modulation) signal is a kind of constant-envelope digital modulation with both high spectral and power efficiency,and however,for the high algorithm complexity and large calculation of traditional CPM modulation and demodulation based on phase trellis, a CPM modulation and demodulation algorithm based on tilted-phase trellis is proposed. Based on analysis of CPM phase network plannning and decomposition model, the implementation methods of tilted-phase gridding design, state storage, initialzation and decoding of CPM signals are also given. Compared with traditional phase, the tilted-phase algorithm enjoys less complexity and calculation, and finally the simulation indicates the correctness of this design scheme. |
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| Keywords: | CPM tilted-phase modulation and demodulation Viterbi coding |
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