Broadband Frequency Hopping Receiver

The electromagnetic environment of the tactical Radio communication deteriorates incessantly, and the digital modulation which is need complex and high data rates become more and more popular nowadays, such as OFDM. TO meet these developing trend,The relative techque for frequency hopping and wideband receiver developed quickly,which is including fast hopping, high dynamic range, high linearity, low noise and low spurious signals.etc characteristics. This paper studies the theroy and key technologies which is used in tactical radio receiver and designs reasonable project.In this paper, Firstly we analyzed the same kind of military Radio equipment overseas recently,and concluded the developing trend; this paper analyzed the main technical index of the receiver. We also demonstrated and analyzed the integrated technological proposal of the radio. The heterodyne structure of software radio was used in the receiver design, Frequency hopping system was utilized in anti-jamming; Demonstration and analysis for the circuit of the receiver was also introduced, such as analog radio frequency part,and intermediate Frequency circuits proposal. We put more time to demonstrate the Fast AGC solution,which is the key technology in receiver design. In the AGC hardware scheme,we demonstrated the system proposal,TOI analysis and power detection part.etc. The algorithm of AGC system were demonstrated for detail. Some key technologies and the whole scheme are innovative.Finally, the results of the test are represented. Summarize this paper and analyze the perfectness and give the optimization scheme in the future. A stable foundation was made for the realization of research and development of the fast hopping receiver, on the base of the achievements of this paper.