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This paper makes researches on the impact of active interference to radar pulse compression. Firstly this paper founds the model of linear frequency modulation radar echo signal, and the model of pulse compression based on matched filter. Secondly the model of active interference is founded. When the parameters of the interference, including interference sent power, frequency deviation between radar...
An improperfeeding mode of Logarithm periods dipole antenna (LPDA) may result in the asymmetry feeding on theconnection pole, which would produce phase delay between the currents on the two arms of dipole, and the main lobe of the pattern would excurse away from the antenna axis. The principle ofmain lobeexcursionand the ameliorationmethods for LPDAare investigated in this paper.
The performance of an anechoic chamber decides the application of the chamber. The measurement for a new-built anechoic chamber could provied the acceptance check, on the other hand it is convenient to have an uncertainty evaluation for the various measurement inside of the chamber. This article provides a realization plan of a system's hardware and software to achieve the performance measurement...
In this paper, bistatic RCS of objects coated with double-negative material (DNM) has been calculated by surface integral equations and MoM. The material is supposed to be homogeneous and isotropic. Based on Equivalent theory to deduce the Electric Field and Magnetic Field Integral Equation(EFIE/MFIE), then equations are translated into matrix equation by Galerkin method, equivalent electric current...
In this paper, research on radiation near field computational method for array in free space and around electrical large size scattering object is presented. Based on array decomposition method, the results of radiation near field for large scale array are matched well with the full wave method based on commercial software. The radiation field of a small scale array around a typical object is also...
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