Tv-guided Bomb Roll Characteristics

The digital simulation of three-dimensional and six degrees of freedom is the stages which the guided bomb controlling system design must pass through. This article uses the digital simulation to study the rolling characteristics of the TV-guided bomb. Firstly, analysis the mathematical modeling of TV-guided bomb, and divides the weapon system into four parts: space motion of six-degree of freedom, TV seeker, relative movement and roll stabilization loop, and separately establish their simulation model by Matlab / Simulink . Next, according to the weapon system request, application frequency range analytic method, has designed the roll stabilization loop using the PD controller. The yawing and sloping channels adopt the proportion guidance law, so all the TV-guided bomb's three channels are under the controlling. The above four parts integrate the three-dimensional and six degrees of freedom digital simulation model with roll stabilization loop. And then, in order to study the influence when the bomb has the initial value of roll angle, angle rate, and the disturbance in the roll loop, the flight process and the performance of body roll has been simulated. Finally this paper used the uniform experimental design as the preliminary discussion to bomb firing accuracy simulation calculation.The simulation experiments show that the designed roll stabilization loop has fine dynamic characteristic and stability is well, the established simulation system can describe the moving regulation of guided bomb. It is steady and reliable for procedure to run, and can provide an effective analytical tool for the TV-guided weapon system.