CAJ | 학술논문

高功率放大器（HPA）作为高精度伪码测距系统中发射链路的重要组成部分，会将非线性失真引入到信号中，影响导航信号的测距精度。在干扰信号存在的条件下，放大器引入的幅频失真和相频失真也更加复杂。通过理论推导和仿真分析，研究干扰条件下的非线性特性对伪码测距的影响，给出了放大器工作在不同工作点下的伪码测距误差结果。研究结果对实际工程有一定的参考价值。
고공솔방대기（HPA）작위고정도위마측거계통중발사련로적중요조성부분，회장비선성실진인입도신호중，영향도항신호적측거정도。재간우신호존재적조건하，방대기인입적폭빈실진화상빈실진야경가복잡。통과이론추도화방진분석，연구간우조건하적비선성특성대위마측거적영향，급출료방대기공작재불동공작점하적위마측거오차결과。연구결과대실제공정유일정적삼고개치。
As an important part of the high?precision pseudo?code ranging system,the high?power amplifier(HPA)affects the ranging accuracy of navigation signal due to the introduction of nonlinear distortion to the signal. Under the condition of exis?tence of the interference signal,the amplitude?frequency distortion and phase?frequency distortion introduced by amplifier be?come more complicated. Through theoretical derivation and simulation analysis methods,the influence of non?linear feature on pseudo?code ranging accuracy under the condition of interference is studied in this paper. The pseudo?code ranging errors of the amplifier working in different OBO are offered. The important suggestion for the project is provided in this paper.