Design and implementation of coherent FFH generator based on multiple parallel DDS

For the new types of features of interference such as large interference power, wide frequency band and many styles, the adoption of a coherent fast frequency hopping system can improve the anti-interference ability of wireless communication systems. In order to meet the strict continuous requirement of frequency-hopping signal carrier phase in a coherent fast-hop system, a fast frequency hopping(FFH) signal generator is designed based on multi-channel parallel direct frequency synthesis(DDS) technology. Also, the generator is implemented by using a hardware platform with FPGA and DAC. The actual examination verifies that the performance characteristics meet the design requirements.