一个AR模型降阶函数OWE(n)

A Function OWE(n) of AR Model with Descending Order

提出了一个欠拟合模型定阶函数 OWE(n),仿真结果表明把 OWE(n)作为用低阶模型代替高阶模型的适用性判断准则,可以得到有效的模型简化。将 OWE(n)应用于 GPS 系统的选择可用性(SA)信号的建模研究,获得了很好的结果。

A function OWE(n)of AR Model with fixed Order is developed.Simulation shows that with function OWE(n)as discrimination criterion for applicability of low order AR model instead of high or- der model,effective simplified model can be obtained.OWE(n)have been applied successfully in the modeling of selective avalability(SA)of GPS.