音频发生器: acoustic frequency generatoraudio frequency generatoraudio generatortone frequency generatortone generatorvfb voice frequency generatorvfg voice frequency generatorvoice frequency generato
The experimental results indicate the circuit is credible and the program runs well . the dpll based on dsp is competent for ultra - audio frequency - tracking 实验结果证明基于dsp的dpll完全可以胜任超音频的频率跟踪,系统硬件电路可靠,程序运行良好。