Because the system equation is changed with time, during the measurement, the statistic character of the system noise and the observation noise cannot be estimated or be determined accurately.
由于系统方程是时变的，在测量过程中，系统噪声和观测噪声的统计特性等很难精确地估计或测定，事实上很多误差模型都不能简单的设为白噪声。
There are many reasons to cause divergence. One of the most important reasons is due to the unknown statistical properties of system noise and measurement noise.
导致发散的原因很多，其中很重要的原因就是缺乏对系统噪声和测量噪声统计特性的了解。
This article is concentrated on data processing, mainly including spectrum estimation and error compensation, and system software developing which applied in a kind of phase noise measurement system.
本文重点介绍了应用于一种相噪测试系统中的频谱估计及误差校正等数据处理方法，以及该系统相噪测试主机系统软件的研制。
应用推荐