| 8PSK调制解调技术实现的研究 |
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| 引用本文： | 冯天雨,杨家玮.8PSK调制解调技术实现的研究[J].重庆邮电学院学报(自然科学版),2005,17(4):440-443. |
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| 作者姓名： | 冯天雨 杨家玮 |
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| 作者单位： | 西安电子科技大学信息科学研究所 陕西西安710071
(冯天雨)，西安电子科技大学信息科学研究所 陕西西安710071(杨家玮) |
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| 摘 要： | 8PSK是一种常用于卫星通信的高带宽效率的多相位键控调制解调技术。通过进行8PSK调制解调的基带仿真，对实现中影响该系统性能的几个重要问题进行了研究。研究了实际应用时不同类型和参数的滤波器对系统性能的影响，针对8PSK的特点，采用了存储波形累加求和法来代替一般的滤波成形，提高了调制速度，利用其相位对称的特点将波形存储表压缩为原容量的1／4，有效地节约了存储空间。
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| 关 键 词： | 8PSK调制解调 根升余弦滤波器 存储波形累加求和法 表格压缩 |
Study of application of 8PSK modulation demodulation technology |
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| FENG Tian-yu,YANG Jia-wei.Study of application of 8PSK modulation demodulation technology[J].Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition),2005,17(4):440-443. |
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| Authors: | FENG Tian-yu YANG Jia-wei |
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| Abstract: | 8PSK is a high efficient modulation and demodulation technology which is often used in satellite communication.Through the baseband simulation of 8PSK,the system performance using different kinds of pulse shaping and matched filters with different factors is studied.Then to improve the real time quality the general pulse shape method is replaced with the wave shape storage and adding method.By faking advantage of symmetry to compress the storage,much storage capacity is saved. |
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| Keywords: | 8PSK modulation and demodulation square root raised cosine filter wave shape storage and adding method table compress |
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