传输通道相位失真对非恒包络信号质量的影响分析  

Influence analysis of transmission channel phase distortion on the quality of non-constant envelope signal

作　　者：杨倩倩 贺成艳[1] 王鹏博 韩子彬 YANG Qianqian;HE Chengyan;WANG Pengbo;HAN Zibin(National Time Service Center,Chinese Academy of Sciences,Xi’an 710600,China;School of Microelectronics,University of Chinese Academy of Sciences,Beijing 101408,China)

机构地区：[1]中国科学院国家授时中心,陕西西安710600 [2]中国科学院大学微电子学院,北京101408

出　　处：《系统工程与电子技术》2023年第6期1597-1605,共9页Systems Engineering and Electronics

基　　金：国家自然科学基金青年基金(61501430);地理信息工程国家重点实验室开放基金(SKLGIE2017-M-2-2)资助课题。

摘　　要：全球定位系统三代首星观测结果显示其星座图具有非恒包络特性,目前国内对非恒包络信号的研究较少,其优势未被充分利用在卫星导航信号设计中。为研究非恒包络信号经过通道失真后的性能,仿真生成恒包络信号和非恒包络信号,构建传输通道相位失真模型,将仿真信号通过失真模型后进行信号质量评估分析,并给出实测信号结果,以进行验证。研究结果表明,在相位失真的影响下,非恒包络信号的测距性能优于恒包络信号。The observation results of the first satellite of the Global Positioning System III(GPS III)show that its constellation diagram has the characteristic of non-constant envelope.At present,there is little research on non-constant envelope signals in China,and its advantages are not fully utilized in the design of satellite navigation signals.In order to study the performance of non-constant envelope signal after channel distortion,this paper simulates the constant envelope signal and non-constant envelope signal,and constructs the transmission channel phase distortion model,then evaluates and analyzes the signal quality after the simulated signal passes through the distortion model,and finally gives the measured signal results for verification.The research results show that the ranging performance of non-constant envelope signal is better than that of constant envelope signal under the influence of phase distortion.

关 键 词：卫星导航信号 非恒包络 相位失真 信号质量评估 

分 类 号：TN911.6[电子电信—通信与信息系统]