In a mobile environment, ICI is mainly caused by Doppler frequency shift. While, when combined with CDMA, Multiple Access Interference (mai) is another key factor affecting system performance.
在移动环境下,ICI的产生主要由多普勒频移引起,同时,与CDMA结合后,CD MA系统本身的多址干扰(MAI)也是影响系统性能的关键因素。
The electro optic sampling system constructed with the multiple frequency phase shift scanning method was introduced.
分析了倍频移相扫描法的工作原理,介绍了用倍频移相扫描法构成的电光采样测量系统。
With the shift-phase modulated multiple chopper circuit, the equivalent switch frequency can be improved, so it can be used in large power occasion.
采用移相调制的多重斩波电路,可以提高等效开关频率,因此可应用在中大功率场合。
With the shift-phase modulated multiple chopper circuit, the equivalent switch frequency can be improved, so it can be used in large power occasion.
采用移相调制的多重斩波电路,可以提高等效开关频率,因此可应用在中大功率场合。
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