Applications of direct digital frequency synthesizer AD9954 in frequency hopping communication system
Guo Yong · International Electronic Elements · 2007
The frequency synthesizer is a kind of discrete frequency singal generator with high stability,and it is widely used in communication,radar,apparatus and navigation system.Based on AD9954,a highly integrated frequency synthesizer,the operation and application theory of AD9954 in frequency hopping system are introduced.The frequency hopping system based on software radio,DSP is used to generate quasi-stochastic sequence and control the output frequency of DDS to construct required hopping maps.This application is quite feasible in experiment.