具有连续相位调制特性的甚小线性调频键控信号分析

doi:10.3969/j.issn.1007-2861.2011.03.001

上海大学学报(自然科学版) ›› 2011, Vol. 17 ›› Issue (3): 221-226.doi: 10.3969/j.issn.1007-2861.2011.03.001

• 通信与信息工程 • 下一篇

具有连续相位调制特性的甚小线性调频键控信号分析

姜俊超, 郑国莘, 邱志易, 刘雅君

上海大学通信与信息工程学院，上海 200072

收稿日期:2010-01-08 出版日期:2011-06-24 发布日期:2011-06-24
通讯作者: 郑国莘(1950～)，男，教授，博士生导师,研究方向为无线通信. E-mail:gxzheng@staff.shu.edu.cn
作者简介:郑国莘(1950～)，男，教授，博士生导师,研究方向为无线通信. Email:gxzheng@staff.shu.edu.cn

Analysis of Very Minimum Chirp Keying Signals with Continuous Phase Modulation Characteristics

JIANG Jun-Chao, ZHENG Guo-Shen, QIU Zhi-Yi, LIU Ya-Jun

School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China

Received:2010-01-08 Online:2011-06-24 Published:2011-06-24

摘要/Abstract

摘要： 甚小线性调频键控（very minimum chirp keying,VMCK）调制方式具有超窄带特性.采用连续相位调制的一般分析方法，选用线性信号作为积分脉冲，给出VMCK的连续相位调制表达式，并构造出一种新型的发射机结构.推导VMCK信号的归一化功率谱密度公式，以功率百分比带宽为考核准则，证明在正交二元信号下，VMCK比最小频移键控(minimum shift keying,MSK)具有更窄的主瓣宽度和更低的旁瓣能量，即带宽更具有效性.

关键词: 超窄带, 功率谱, 连续相位调制, 甚小线性调频键控, 最小频移键控

Abstract: The very minimum chirp keying (VMCK) modulation possesses characteristics of an ultra narrow band (UNB). This paper uses a general analysis method of continuous phase modulation (CPM) to select a linear signal as the integral pulse, give the continual phase modulation express of VMCK, and construct a new kind of the VMCK transmitter structure. The normalization power spectral density formula of VMCK is then derived, with the power percentage bandwidth as an inspection criterion. It is proven that, for an orthogonal binary signal set, VMCK has a narrower main lobe compared with the minimum shift keying (MSK) modulation. Therefore better band width efficiency can be achieved with VMCK.

Key words: continuous phase modulation (CPM), minimum shift keying (MSK), power spectrum, ultra narrow band (UNB), very minimum chirp keying (VMCK)

中图分类号:

TN 914.3

姜俊超, 郑国莘, 邱志易, 刘雅君. 具有连续相位调制特性的甚小线性调频键控信号分析[J]. 上海大学学报(自然科学版), 2011, 17(3): 221-226.

JIANG Jun-Chao, ZHENG Guo-Shen, QIU Zhi-Yi, LIU Ya-Jun. Analysis of Very Minimum Chirp Keying Signals with Continuous Phase Modulation Characteristics[J]. Journal of Shanghai University（Natural Science Edition）, 2011, 17(3): 221-226.

[1]	邱志易,郑国莘,刘雅君,卢佳欣. 超窄带甚小线性调频信号的小波分析[J]. 上海大学学报(自然科学版), 2012, 18(2): 132-138.
[2]	王军，郑国莘，姜俊超. 甚小线性调频键控调制波形的功率谱优化[J]. 上海大学学报(自然科学版), 2011, 17(2): 111-114.
[3]	贾东立1,2,郑国莘1,张立1,朱亚洲1. 甚小线性调频键控调制波形的正弦基拟合优化[J]. 上海大学学报(自然科学版), 2010, 16(4): 331-335.
[4]	赵幸，郑国莘，邱志易，过冰，曾凯伦. 甚小线性调频键控信号的正交性分析[J]. 上海大学学报(自然科学版), 2010, 16(4): 355-360.

具有连续相位调制特性的甚小线性调频键控信号分析

Analysis of Very Minimum Chirp Keying Signals with Continuous Phase Modulation Characteristics

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