Kozlov

The problem of designing new terminal guidance algorithms, based on the nonlinear prognosis of the powered portion of flight of the flying vehicle, is quite relevant nowadays. In this article the semianalytic integration technique is reported. This algorithm provides the desired prognosis with a minimal computation effort. The concerned method is universal and eligible for a wide range of flying vehicles. It is based on the curve fitting of the pitch and apparent velocity programs involving standard functions. This article reveals how to obtain the numeric parameters, required for the algorithm realization, and how to transform them to the condition, suitable for the further operations. Then, the trajectory restoration process is described; it utilizes the derived analytical functions and numerical large-step integration. Besides, the article indicates how this method can be applied to various ballistic tasks.