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针对飞行控制律机载软件设计中编译环境自带的基本函数源代码不开放,导致收敛性无法严格保证,以及精度、运行时间和占用空间不可控等问题,采用手工代码编写实现基本函数的方式,基于工程应用需求,对飞行控制律中最基本的正弦函数,提出三种方法进行软件手工代码实现,并从精度、占用空间和运行时间三方面对所提出的三种方法进行对比分析。结果表明,所提出的三种方法均能满足工程实现要求,其中,固定项法具有最优的综合性能。
Aiming at the problem that the source code of the basic functions in the compiling environment of flight control software are not open, the convergence of the source code can not be strictly guaranteed, and the accuracy, running time and space are not controllable, the manual code is used to write the basic functions Based on the requirements of engineering application, this paper presents three methods of software manual code implementation for the most basic sine functions of flight control law, and compares and analyzes the three methods proposed in terms of accuracy, occupancy and running time. The results show that the proposed three methods can meet the project requirements, of which the fixed item method has the best overall performance.