.v / Uhf Communications Background Signal Baseband Circuit And Control Software Design

Aiming at the scheme of the electromagnetic environment simulator of the wireless communication, the mission of this project is to design V/UHF baseband frequency circuit and its control software. In virtue of basic concept of software radio and principle of data communication, the whole desingn thought is to develop a high performance arbtrary waveform generator, which is realized substituting software for hardware to the greatest extend. The expectation signals of communication background is the result of high speed DAC, while its data source is coming from waveform generating software based PC and bulky outside SRAM developed by ISP technique. In this paper, several topics, including dynamic SQL database, control software, net communication as well as GPS timing and orientation are reserched in the application package.Signal integrity is a vital point for the success of modern communication system. On the basis of reseraching the work principle of softeare and hardware, debugging the whole system, deeply analysing factors which relational components affect EMC performance in intermedia frequency circuit and measuring the output simulation signals of high density, this paper also discusses the measures to improve the reliability of the system from two aspects of theory analysis and engineering practice.