摘要
针对线性调频宽带脉冲信号,提出了一种基于分数阶域的奇偶交替信道化接收的方法。首先介绍了分数域奇偶信道化的相关原理及其工程实现的高效结构,然后分析了宽带线性调频信号经过分数域奇偶信道化后的输出信号样式。通过仿真验证,该方法对非平稳信号具有很好的能量聚焦性,避免了信号在滤波器组过渡带时出现的跨信道问题,对于提高输出信号的信噪比具有很好的效果,为宽带调频信号的监测分析提供了有效的技术途径。
For LFM broadband pulse signal,a method of odd-even alternating channelization reception based on fractional order domain is presented.Firstly,the related principle of fractional domain parity channelization and the efficient structure of its engineering implementation are introduced.Then,the output signal style of broadband linear frequency modulation signal after parity channelization in fractional domain is analyzed.The simulation results show that this method has good energy focus for the non-stationary signal,avoids the cross-channel problem when the signal is in the transition band of the filter bank,effectively improves the output signal-to-noise ratio of the subchannel of the linear FM broadband signal,and provides an effective technical way for the monitoring and analysis of the broadband FM signal.
作者
蔡凡
CAI Fan(School of Electronic and Electrical Engineering,Minnan University of Science and Technology,Quanzhou Fujian,362700)
出处
《山西大同大学学报（自然科学版）》
2021年第1期11-15,共5页
Journal of Shanxi Datong University(Natural Science Edition)
基金
闽南理工学院科研课题重点项目[17KIX030]
福建省中青年教师教育科研项目[JAT190887]。
