本文主要研究了波分复用光传送网中波长转换器优化配置问题，有限范围波长转换问题，以及虚拓扑设计问题。
This dissertation manly focuses on the issues of wavelength converter optimal placement, limited-range wavelength conversion and virtual topology design.
理论分析和实验结果表明，该转换器可以在较宽的输入电压范围内获得较高的转换效率。
Both theoretical analysis and experimental results show that the AC DC converter has high efficiency over a wide range of input voltage.
为了要抑制噪声效应，它包括量子化噪声，积分仪和模拟-数字转换器要求宽动态范围，高增益和良好的分辨率。
Wide dynamic range, high gain and fine resolution are required of integrators and Analog to Digital Converters in order to limit the effects of noise, including quantization noise.
就模拟输入而言，使模数转换器不能区别其变化的超范围的绝对电压值。超载值对于正输入和负输入可能不同。
For analog inputs, any absolute voltage value above which the analog-to - digital converter cannot distinguish a change. The overload value can be different for plus and minus inputs.
作为更为经济的一种波长转换器配置方式，部分波长转换配置方式只在网络中的某些结点上配置少量的全范围波长转换器。
Partial wavelength conversions, which configures several full-range wavelength converters only at some nodes in WRONs, provide a more commercial wavelength conversions configuration.
外部电流转换器扩大了准确监测的电流范围。
External current transformer extends current range for accurate monitoring.
为了降低对波长转换器性能的要求，一些文献还提出在网络中配置只具有有限范围的波长转换器。
To lower the requirements of the wavelength converter performance, Limited-range wavelength conversion technique was employed in some papers.
当输入信号动态范围比较大时，系统性能通常被高精度模数转换器(adc)所限制。
When the input signal has a wide dynamic range, the system throughput is limited by the conversion rate of the high-resolution analog-to-digital converters (ADC).
该设备向有载分接头转换器连续地提供氮气，并具有通气孔，以保持略高于极端气候条件范围的超压。
The apparatus applies a continuous supply of nitrogen to the load tap changer, and has an orifice to maintain a slight overpressure over an extreme range of climatic conditions.
介绍了双积分式A/D转换器CC1 44 3 3在宽范围电压测量中自动量程转换电路的设计及工作原理。
The design and the work principle of automatic range-changing circuit of dual-integral A/D converting chip CC14433 in voltage measuring of wide range are introduced.
介绍了双积分式A/D转换器CC1 44 3 3在宽范围电压测量中自动量程转换电路的设计及工作原理。
The design and the work principle of automatic range-changing circuit of dual-integral A/D converting chip CC14433 in voltage measuring of wide range are introduced.
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