一种新的等效拟配初值计算方法  

A New Method of Calculating Initial Parameters of Equivalent Systems

作　　者：江飞鸿[1] 景海峰[1] 耿少峰[1] 闵振启[1] 

机构地区：[1]第一飞机设计研究院第九研究室,陕西西安710089

出　　处：《飞行力学》2008年第2期77-80,共4页Flight Dynamics

摘　　要：在简要分析传统等效拟配初值选取方法不足的基础上,提出了一种基于Matlab信号处理工具箱提供的invfreqs函数的初值计算方法。整个计算过程不需要人工参与,所得拟配初值接近优化的终值,与传统初值选取方法相比,提高了拟配效率和成功率。仿真结果表明,该初值计算方法具有良好的工程应用价值。The disadvantages of traditional methods of calculating initial parameters of equivalent systems were shortly summed up, and a new calculating method based on the signal processing function of Matlab-invfreqs was presented. The engineers＇ participation is not essential to calculating process, and the derived initial parameters are close to the terminal optimized ones in values, which help to increase matching efficiency and matching probability of success. Simulation results show that the method is of good engineering application worth.

关 键 词：等效系统 拟配 初值计算 

分 类 号：V212.1[航空宇航科学与技术—航空宇航推进理论与工程]