面向场地鉴定的 MLS 脉冲定时点测量误差量化分析方法

针对多径效应引起MLS(microwave landing system)信号包络畸变造成脉冲定时点测量误差问题,提出了一种改进的误差量化分析方法.通过对误差量化分析流程的分析,指出造成误差的关键因素,并根据包络信号的形式,提出假设条件,简化模型,导出修正后的误差量化分析公式,同时对量化分析公式精度进行分析.仿真结果表明,该方法能定量分析多径效应引起的脉冲定时点测量误差.

For site identification MLS pulse timing point measurement error of quantitative analysis method

In view of the multipath effect caused by MLS(microwave landing system) signal envelope distortion pulse timing point measurement error problem, an improved method for quantitative analysis of the error is put forward. Through analyzing the error of quantitative analysis of the process, the key factor to the error is pointed out, and according to the signal in the form of assumptions, the simplified model is put forward, the quantitative analysis of the error of the revised formula is derived,and the analysis formula of accuracy is analyzed as well. Simulation results show that the method can quantitatively analyse pulse timing point measurement error caused by the multipath effect, and realize the quantitative assessment of the appraisal.