Aiming at the uncertainty of weights selection in the weighting orthogonal frequency division multiplexing system, a performance analysis method for carrier blind synchronization is proposed.
针对载波加权正交频分复用系统中权值选择的不确定性，提出了一种载频盲同步的性能分析方法。
It also gives out the criteria for selection of system parameters and studies the limit mode of over-voltage of working frequency under different conditions.
给出了系统参数选择的依据，研究了工频过电压在不同条件下的限制方式。
The methods of the parameter selection for the G function were given in theory, and the quality of the uniformity usage of the frequency points in the DFH system range was analyzed.
同时从理论上对其参数的选择进行了分析，证明了采用该算法的差分跳频系统能够均匀使用每个频点。
According to the design demand of DC power supply panel in engineering, this paper introduces the selection of rectification DC rectification power system with high-frequency switch.
针对工程中对直流电源屏的设计需要，简要介绍了高频开关整流电源直流系统的选择。
The composition, functions, PLC model selection and program design of PLC plus frequency speed- regulating system on electroslag furnace are briefly introduced.
简要介绍了电渣炉PLC加变频调速控制系统的组成、功能及PLC的选型和程序设计。
The paper introduces the principle of frequency converter, frequency project of base water-feeding system and the selection of frequency technology.
介绍变频器工作原理、基地供水系统变频项目以及变频工艺的选择。
The paper introduces the principle of frequency converter, frequency project of base water-feeding system and the selection of frequency technology.
介绍变频器工作原理、基地供水系统变频项目以及变频工艺的选择。
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