| GMSK多比特联合差分解调性能分析与仿真 |
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| 引用本文： | 杨树树,宋小刚.GMSK多比特联合差分解调性能分析与仿真[J].航天电子对抗,2016(4):44-46,51. |
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| 作者姓名： | 杨树树 宋小刚 |
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| 作者单位： | 中国航天科工集团8511研究所,江苏南京,210007 |
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| 摘 要： | 高斯最小移频键控（GM SK ）调制是一种连续相位的恒包络调制，具有带外辐射小、频谱利用率高的特点，首先介绍了GM SK信号的基本原理，然后在传统的1‐bit差分解调、2‐bit差分解调的基础上提出一种多比特联合差分解调的算法，并给出了仿真结果。仿真结果表明，该算法具有更好的抗噪声能力，并且结构简单，易于工程实现。
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| 关 键 词： | 高斯最小移频键控 1-bit差分解调 2-bit差分解调 多比特联合差分解调 |
Performance analysis and simulation of n-bit combined differential demodulation for GMSK signal |
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| Yang Shushu;Song Xiaogang.Performance analysis and simulation of n-bit combined differential demodulation for GMSK signal[J].Aerospace Electronic Warfare,2016(4):44-46,51. |
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| Authors: | Yang Shushu;Song Xiaogang |
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| Institution: | Yang Shushu;Song Xiaogang;No.8511 Research Institute of CASIC; |
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| Abstract: | Gaussian minimum shift keying (GMSK ) is a constant envelope modulation with continuous phase , and achieves good power‐bandwidth efficiency . The basic principle of GMSK signal firstly is introduced ,and then the n‐bit combined differential demodulation algorithm is presented according to the traditional 1‐bit differential demodulation and 2‐bit differential demodulation .Simulation result indicates that the proposed algorithm possesses good performance of anti‐noise .And it is simple and easy to carry out in the practical project . |
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| Keywords: | GMSK 1-bit differential demodulation 2-bit differential demodulation n-bit combined differential demodulation |
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