In this article, according to the application requirements, an effective algorithm for digital frequency conversion is provided.
本文根据数字化干扰的应用需要，提出了一种有效的数字变频算法。
This text starts out the general design form hardware aspect of the digital frequency conversion air-condition's system of indoors and outdoors.
本文从硬件方面着手进行了直流变频空调室内、室外系统的综合设计。
DDS (direct digital synthesis) is a sort of frequency synthesis technique, which has advantages such as short frequency conversion time, high resolution in frequencies, programmability and so on.
直接数字频率合成(DDS)技术是目前广为应用的一项频率合成技术，它具有频率转换时间短、频率分辨率高、可编程等特点。
A frequency guiding digital receiver is given. The key technology, fast frequency estimation and high effectual data rate conversion, is introduced briefly.
给出了一种频率引导式的数字接收机方案，简要介绍这种接收机的关键技术——快速、高精度频率估计以及高效的数据率转换。
This paper introduces three kinds of energy modifying technology, multi-control system, frequency conversion technology and digital scroll technology.
介绍了空调系统中的压缩机几种能量调节技术：多级控制系统、变频技术和数码涡旋技术。
This paper describes an AC frequency conversion servo system which is composed of single chip and converter and designs a digital PID adjuster.
介绍了应用单片机和变频器组成的数字式变频交流伺服系统及数字PID调节器设计。
The all-digital ac frequency conversion control system based on the common DC bus can meet the requirements of high speed and high reliable control performance of the high-speed paper machine.
这种基于公共直流母线的全数字交流变频控制系统适用于高速纸机的高速度、高可靠性控制性能的需要。
However, extending the upper frequency of such function signal generator is limited by the read-out time of the memory and the conversion rate of the digital-to-analog converter.
可是，这种信号发生器的上限频率的提高受存储器的读取时间和数模转换器的转换速度的限制。为了提高数字法函数信号发生器的上限频率，我们提出了用分布存储式数字法生成函数信号。
The conversion speeds and results of ADC0809 analog-to-digital converter are accurate tested and analyzed by using multi-master clock pulse with different frequency and pulse width.
使用多组不同频率和不同脉宽的工作时钟，定量测定分析ADC0 80 9模数转换器的转换速度和转换结果。
The conversion speeds and results of ADC0809 analog-to-digital converter are accurate tested and analyzed by using multi-master clock pulse with different frequency and pulse width.
使用多组不同频率和不同脉宽的工作时钟，定量测定分析ADC0 80 9模数转换器的转换速度和转换结果。
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