基于FPGA及AD9957的高速跳频发射机设计

With the development of communication technology, communication security especially Military Communications is received more and more attention. At the same time, the establishment of all kinds of communication network, making limited frequency resource more crowded, and the mutual interference is even more serious. Frequency hopping communication with its strong anti-jamming, anti-fading ability and the good secrecy, widely applied in the military communications and civil communication. The development of software defined radio technology provides reliable platform to super-fast frequency hopping development, and increases the designing flexibility of frequency hopping system greatly. In this paper, applied the architecture of software-defined radio, used Altera FPGA and AD9957, designed a high-speed and broadband frequency hopping transmitter based on the unified hardware architecture. Achieved the frequency hopping rate of 125kHops/s, and bandwidth of 300MHz.