卫星导航信号波形抗干扰性能分析与设计
Analysis and design of anti-jamming performance of satellite navigation signal waveform
摘要
针对当前各类导航信号在强干扰环境下抗干扰能力不足的问题,从抗干扰波形设计的角度探索导航信号设计方法,提升导航信号在对抗环境下的使用性能.依据信号抗干扰性能评估准则,首先对当前全球卫星导航系统(Global Navigation Satellite Systems,GNSS)所采用的典型信号波形及推广波形的抗干扰性能进行分析对比,然后建立起信号波形与功率谱之间的数学关系,通过分析功率谱与信号抗干扰品质因数之间的关系,给出抗干扰波形设计建议.以接收机跟踪抗窄带干扰性能为优化目标,设计了一种多级码片阶梯波形.仿真结果表明,该波形具备更强的抗干扰性能、更优的定位精度和更佳的多径抑制能力,可用于支撑新一代卫星导航系统信号体制的设计.
Given the issue of insufficient anti-jamming capability of various current navigation signals in strong interference environments,approaches to navigation signal design are explored from the perspective of anti-jamming waveform design to enhance the performance of navigation signals in contested environments.Based on the evaluation criterion of signal anti-jamming performance,the anti-jamming performance of the typical signal waveform and the extended waveform used in the current Global Navigation Satellite Systems(GNSS)is analyzed and compared,and then the mathematical relationship between the signal waveform and the power spectrum is established.By analyzing the relationship between the power spectrum and the quality factor of signal anti-jamming,the anti-jamming waveform design suggestions are given.A multilevel chip staircase waveform is designed to optimize the performance of receiver tracking against narrowband interference.Simulation results show that the waveform has stronger anti-jamming performance,better positioning accuracy and better multipath mitigation capability.The research results and the anti-jamming waveform design method can be used for supporting the signal system design of the new generation satellite navigation system.
年，卷(期)：
2026, (2)
分类号：
P228.1
机标分类号：
TN973
TP391.9
P228.4
在线出版日期：
2026年5月28日
