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A reference architecture model of a typical fire control system has been established with the Real-time Object-Oriented Modeling (ROOM) environment, ObjecTime. An external graphics user interface (GUI) has also been developed to communicate with the reference architecture, thus making the reference architecture an ideal tool to test a specific design based on the architecture implementation. The GUI also communicates with an independent ballistics calculation program to send the target parameters and receive the ballistics calculation results. The ObjecTime model, the GUI, and the external ballistics calculation program constitute a demonstration system for the fire control reference architecture.

In this paper, the problem of estimation and prediction of the projectile trajectory, MET data, and the impact point is formulated within the extended Kalman filtering framework. Factorized implementations of extended Kalman filtering, smoothing, and prediction algorithms are presented. Different wind models are discussed. The algorithms are demonstrated through simulation.

This paper inverstigates a new way of conical spray for medium speed D. I. diesel engine, with which three different construction injectors were used. The feature of conical spray and fuel-air mixture formation were observed by means of schlieren photograph technique. The main result is that the cone top angle of conical injector has influence on formation of fuel-air mixture and performance of engine. The results of test on a single-cylinder engine show the premixed combustion phase was possessed of a large proportions of the whole combustion period, which was become a leading feature. The increasing interest in study of diesel engine combustion is caused by achieving even more stringent emission standards and greatly improving the fuel economy. From present status of this research the traditional combustion system which with orifice nozzel has already exposed some inherent drawbacks.

This paper investigates the difference between the traditional diffusion combustion and hot premix film type combustion on improvement of compression ignition engine performance in all respects. The first part of this paper mainly describes the heat release, air fuel mixing, swirl flow and squish flow and also film formation on diffusion combustion. The second part of this paper describes the development of hot premix combustion, its feasibility and guiding principles. The main purpose of this part is to demonstrate three main measures which should be taken in carrying out premix film formation combustion. The first means is air flow guide ring. The second is film formation process and the third is fine particles fuel injectors: one is supermultiple holes injector and the second is conical spray fuel injector.