根据混沌迭代方程简单,对初始值的敏感依赖性,利用DDS高频率分辨力并在频率切换时能保持相位连续的优点来产生频率髋变的载波信号,然后基于BPSK调制解调原理,设计了一个频点数为256、起始频率为1.5MHz、频率间隔为25kHz的混沌跳频通信系统；用Matlab/Simulink下的DSPBuilder工具箱内的模块对设计进行建模并仿真,仿真结果验证了设计的正确性;此设计修改方便,只要对DSPBuilder模块库中的模块参数进行设置即可完成,加快了研究速度.%According to the simple of chaotic iterative equation and sensitive dependence on initial value, based on the advantage of the DDS' s fine frequency resolution and it could maintain the phase continuity in the switch-over of different frequency code, the carrier signal of frequency hopping is generated. And then the chaotic frequency hopping communication system based on the principle of BPSK modulation and demodulation is implemented. The system have 256 frequencies, initial frequency is 1. 5MHz, frequency interval is 25KHz. By using the modules in Altera DSPHuilder toolbox under the Matlab/Simulink, the design is simulated. The simulation result shows that the design is corrective and convenient to modify, just to set the parameters of DSPBuilder modules. Accelerated the speed of research.
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