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In order to improve inertia identification accuracy of the servo system, this paper proposes an improved acceleration deceleration method which adopts a simplified mathematical model of servo system in rotating coordinate system of servo motor, determines the detection signals which applies for load inertia identification. The experimental results demonstrate that compared with traditional acceleration...
The research on parameter calibration of traffic simulation model plays an important role in whether a model can well reflect the real traffic situation of the road. Thus it can provide evidence indirectly to traffic management and control. In this paper, the data verified in the traffic simulation software VISSIM is compared with the measured data, then we know that the model parameters after correction...
The first principle based on the density functional theory and nonequilibrium Green's function method are adopted for analyzing the electronic structure, the transmission probabilities and the information functions of the fullerene C50 that is bridged between two semi-infinite Au-atom electrodes. Three transmission systems based on the fullerene C50 are built, the quantum transmission and the information...
During the course of intercepting the fast target in proportion navigation law, the missilepsilas acceleration increases so quickly and even reaches its saturated value near the hitting spot that the guidance precision becomes worse. To analyse the effect of the saturated acceleration on the guidance precision in proportion law, an algorithm to calculate the missilepsilas miss distance within the...
A target tracking method based on data fusion of infrared and radar is proposed to improve tracking precision. Unscented Kalman filter (UKF) is applied to process data on distributed fusion architectures. The method combines the advantages of UKF and track-to-track algorithms. The cross-covariances of the two sensors are used to estimate overall covariance and states. The overall estimation is obtained...
To analyze the performance of exoatmospheric kill vehicle (EKV), a model of interceptor against target is built up. The parameters and scenarios selected are based on the typical EKV. In three-dimensional field, the ballistic trajectories and the miss distance of interceptor and target are simulated in condition of different intercepting range, different original error of ballistic trajectories and...
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