Signal Processing Algorithm Of Radio Direction Finding

The purpose of this paper is to research Radio Direction Finding and to implement the software design in engineering. The characters and the used range of Radio Direction Finding System for radio signal are compared. In the same time, the composing of the Frequency Hopping System and its signal are analyzed. After the theory of Correlation Interferometer and how to improve the precision of Frequency Hopping Direction Finding are introduced, of which the simulation and software has been completed. The theory of elevation and azimuth finding used the quasi-antenna arrays is introduced, the system scheme is proposed to resolve the problem of Phase Ambiguity mainly. Finally, the principle of Spatial Spectrum Estimation algorithm is narrated briefly, then the models of every algorithm are established and simulated.