Frequency tracking circuit is one of the special circuits used in the ultrasonic generator.
频率跟踪电路是超声波发生器中的一种特殊电路。
The controlling loop includes start-up circuit, frequency tracking circuit, driving signal circuit, and water lack protecting circuit.
控制回路由启动、频率跟踪、驱动信号、缺水保护电路组成。
The former determines the frequency range which should be revised by the hot tracking circuit, while the later is the final frequency error of the local oscillator.
同时也提出了热跟踪后本振频率跟踪误差项。分析前者，可以决定热跟踪电路应予修正的频率范围，而后者则是跟踪本振最终的误差。
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。
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。
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