目前常见的多电平逆变器主要有三种：二极管箝位式、电容箝位式和级联式。
Nowadays, there are three prominent multilevel topologies, diode-clamped multilevel inverter, capacitor-clamped multilevel inverter and cascaded multilevel inverter.
讨论了采用级联双极性晶体管结构的超宽带极脉冲发生器，并对其电路及双极性晶体管雪崩的工作原理进行了具体分析。
The paper analyses the electric circuit and the working principle of the avalanche of the bipolar transistor of the pulser with a cascade connected bipolar transistor structure.
最后研究了两种新型的预失真器：二次混频预失真器和直接级联反向并联肖特基二极管对预失真器，并对后者进行了一定的改进。
Last we present two new pre-distortion, a pre-distortion using twice mixing operation and linearizer using anti-parallel Schottky diodes which are directly connected with pa.
目前，多电平变频器的主要结构形式可分为二极管嵌位型，电容嵌位型和单元级联型三种。
At present, cascaded multicell converter, diode clamped multilevel converter and flying capacitor multilevel converter are 3 mainly converting topologies.
为解决探地雷达用于隧道地质超前预报时探测距离小的问题，在分析了雪崩三极管工作原理的基础上，设计了基于两级雪崩三极管串行级联的窄脉冲产生电路。
The status in quo of Impulse Ground Penetrating Radar and the general principle of Avalanche Transistor are discussed then a new method for Avalanche simulation is given in this thesis.
为解决探地雷达用于隧道地质超前预报时探测距离小的问题，在分析了雪崩三极管工作原理的基础上，设计了基于两级雪崩三极管串行级联的窄脉冲产生电路。
The status in quo of Impulse Ground Penetrating Radar and the general principle of Avalanche Transistor are discussed then a new method for Avalanche simulation is given in this thesis.
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