| 正弦型非线性切普键控信号的正交性 |
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| 引用本文： | 周彬,孙志国,宁晓燕,郭黎利.正弦型非线性切普键控信号的正交性[J].吉林大学学报(工学版),2013,43(2):526-531. |
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| 作者姓名： | 周彬 孙志国 宁晓燕 郭黎利 |
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| 作者单位： | 1. 哈尔滨工程大学信息与通信工程学院,哈尔滨,150001
2. 哈尔滨工程大学信息与通信工程学院,哈尔滨150001;北京交通大学轨道交通控制与安全国家重点实验室,北京100000 |
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| 基金项目： | 国家自然科学基金项目(61101141);轨道交通控制与安全国家重点实验室开放基金项目(RCS2011K009) |
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| 摘 要： | 为了寻求正弦型非线性切普键控(SNCK)的正交信号集,给出了SNCK波形样本相关通式,并对其进行了推导,通过引入Bessel函数恒等式解决了双重三角函数的积分运算问题,得到其相关积分解析式。对不同调频周期数、不同时间-带宽积和不同调频极性等多种组合情况下的SNCK信号正交性进行了分析,发现通过不同调制参数的灵活组合可以实现SNCK信号正交调制。本文为选择SNCK信号正交集提供了方法,为实现SNCK信号的多载波并行通信奠定了基础。
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| 关 键 词： | 通信技术 正弦型非线性切普键控 正交性 Bessel函数 |
Orthogonality of sinusoidal non-linear chirp keying signals |
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| ZHOU Bin,SUN Zhi-guo,NING Xiao-yan,GUO Li-li.Orthogonality of sinusoidal non-linear chirp keying signals[J].Journal of Jilin University:Eng and Technol Ed,2013,43(2):526-531. |
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| Authors: | ZHOU Bin SUN Zhi-guo NING Xiao-yan GUO Li-li |
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| Affiliation: | 1(1.College of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China;2.The State Key Laboratory of Rail Traffic Control and Safety,Beijing Jiaotong University,Beijing 100000,China) |
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| Abstract: | In order to obtain orthogonal signal set of Sinusoidal Non-linear Chirp Keying(SNCK),the mathematical correlation integral expression is derived,and solution to give an analytical formula with the Bessel function is found.Analysis of the orthogonality of SNCK signals with different period number of frequency variation curve,different time-bandwidth product and different frequency modulation polarity shows that the SNCK method can implement orthogonal modulation by flexibly selecting modulation parameters.A scheme to search for orthogonal signal set of SNCK is provided,which lays a foundation for multi-carrier parallel communication using SNCK signals. |
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| Keywords: | communication sine non-linear chirp keying(SNCK) orthogonality Bessel function |
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