摘要
从压制式干扰对GPS信号捕获的影响和对GPS信号跟踪的影响2个方面分析了对GPS接收机实施干扰的可行性;进行了GPS干扰性能仿真,建立了P码GPS接收机、P码GPS信号和GPS下行信道的数学模型和仿真模型;对单载波干扰信号、阶梯波扫频干扰信号和噪声调频干扰信号下P码GPS接收机的抗干扰容限进行了仿真实验,并给出了实验结果,最后对抗干扰容限仿真实验结果进行了分析。
Aiming at the impact of oppressive jamming on GPS signal acquisition and tracking, the feasibility of interference implementation in GPS receiver is analyzed.The GPS interference performance simulation is performed, and the mathematical model and simulation model of P-code GPS receiver,P-code GPS signal and GPS downlink channel are established.The anti-jamming tolerance of P-code GPS receiver is simulated and tested under single carrier interference signal,step wave sweeping interference signal and noise FM jamming signal.The simulation results are given and analyzed.
出处
《无线电通信技术》
2014年第1期58-60,64,共4页
Radio Communications Technology
关键词
GPS
抗干扰
仿真
实验
GPS
anti-jamming
simulation
experiment
