摘要
借助于微型计算机及Ｃ语言开发环境下的丰富作图功能和快速运算能力，通过引入计算机辅助根轨迹方法之一的分支跟踪法，从飞控系统的开环极点出发，通过矢量搜索，逐点求取根轨迹分支上满足辐角条件的点。由于其搜索过程的收敛和唯一性，因而其计算速度远高于网格搜索等方法。该方法仅需已知系统的开环极点，无需考虑根轨迹分支的走向；而且该方法还特别适用于具有纯滞后的系统。通过对飞控系统的实例计算验证了该方法的实用性和准确性。
With the help of microcomputer and its powerful calculation with the graphic library in C language, one of the computer aided root locus methods, approach to branch tracking, is introduced into determining by vector locating step by step root points consistent with the spoke argument condition based upon pole points for flight control system. With the convergence and uniqueness on the vector locating, so its processing is much faster than the net method or other's; also only with the pole points for an open system, so not concerning about how branching for root loci of the system. The approach to branch tracking is especially favorable to those systems with pure time delay since there is no any difference substantially when it is applied to and processes the systems with or no pure time delay.Also in this paper several examples for flight control system are given so as to show and identify its effectiveness and accuracy.
出处
《飞行力学》
CSCD
北大核心
1999年第1期59-64,共6页
Flight Dynamics
关键词
计算机辅助
根轨迹法
分支跟踪
飞行控制系统
Computer aided root locus method Approach to branch tracking Flight control system
