Abstract.A ballistic missile detection performance index system is constructed of the skywave OTHR based on the ballistic missile detection characteristics of the skywave OTHR system. Combined the AHP method to the GRG method, the index weights of the index system are computed. With the theory of cloud gravity center, the cloud model of the ballistic missile detection performance evaluation of the skywave OTHR is built. The ballistic missile detection performance on the typital detection condition of the skywave OTHR is evaluated using the cloud model. The feasibility of this method is verified through the calculation of example.
The finite diference time domain (FDTD) technique is used to analyze the transmission characteristic in GTEM cells in a polar coordinate system. To : simulate the propagation of the wave at the terminal section a first order absorption boundary condition was implemented. The scattering coefficient and characteristic impedance are calculated. The analysis has been carried out to the frequency domain response with pulse source by means of a discrete Fourier transform.
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