非陀螺找北系统的计算机仿真研究

Simulation Study on a Gyroless Northseeker

阐述了对设计的一种非陀螺找北系统进行计算机仿真的原理、方法。提出了降低系统噪声影响、提高估计精度的多位置采样和多周期平均算法，并通过仿真对其算法原理进行了验证。仿真程序采用多线程技术，实现了实时测量，缩短了系统反应时间。

The principle and method to simulate a novel gyroless northseeker are described and discussed in this paper.The multiposition sampling and multicycle averaging are presented to lower the influence of the system noise and to improve the accuracy of parameter estimation.The algorithms of above methods are verified by computer simulation. The simulation program utilizing multithread technique realizes the realtime estimation and reduces the reaction time of the system.