Research On The Application Of SDR In VTS

SDR(Software Defined Radio)defines that on the simple and general hardware platform, varies radio applications can be implemented by using the software which can be updated and reconfigured. SDR can make the wireless communication system have a good flexibility and generality. Also, the interlinkage and update of the system will be very convenient. So the prospect of application of SDR will be glorious.At present, many scholars are exploring the application of SDR in every field. But seldom explores the application in VTS. So this thesis studied the application in VTS based on SDR theory. The main research fruits in this thesis are constituted by several fractions as follow:1. The thesis analyzed and studied the theory, structure and characteristic of all the system about radar digital receiver, digital frequency reference source, digital wave produce and smart antenna where SDR can be applied in radar subsystem of VTS. The thesis expatiated on the idea and advantage when SDR theory is applied in VHF subsystem. Consequently application of SDR in VTS was addressed in macroscopical structure of VTS.2. A mass of simulate experiments were done based on SDR theory. According to analyze and compare vase different wave and spectrum of intermediate frequency sample, the application of intermediate frequency sample of SDR in radar is feasible, put forward application precondition.The results of this thesis reveal that the application of intermediate frequency sample of SDR in radar is feasible, accordingly the application of SDR in VTS is reasonable. It can provide some reference worth to develop the application research of SDR.