Based on the simulating results,we analyses the influence of the bias circuit of power amplifier on the rise time and fall time of pulse.
本文介绍了脉冲功率放大器的调制方式以及各自的优缺点,用ADS对功率放大器直接脉冲调制方式进行仿真,根据仿真结果分析了功率放大器偏置电路对脉冲上升沿和下降沿的影响,从而提出了应如何设计功率放大器的偏置电路来改善脉冲的上升沿和下降沿。
An Algorithm for Critical Path Extraction in IC Timing Analysis with Consideration of Slew;
考虑信号上升/下降时间的IC关键路径算法
After presenting an improved theoretical model that describes the dynamic process of optical pulses amplification by the semiconductor light amplifiers (SLAs), both the rising and falling time of amplified picosecond optical pulses by the SLAs have been investigated numerically.
结果表明 :随着SLA偏置电流的增大 ,上升时间将缩短而下降时间将延长 ;输入脉冲的大峰值功率将加速上升时间的缩短和下降时间的延长 ;增益压缩对脉宽为几个皮秒的输入脉冲的上升时间和下降时间有明显的影响 ,而对脉宽为几十皮秒的输入脉冲可近似认为没有影响 ;增益非对称和漂移强烈影响上升和下降时
Radar Emitter Recognition Based on Rising/Falling Edge of Pulse Signal
基于脉冲信号上升/下降沿的雷达辐射源识别
roping [helicopter]
沿绳下降法〔直升机〕
To raise or lower(the boom of a crane or derrick.
升降使起重机的吊臂上升或下降
Remove the liftglass latch from the liftgate.
从升降闸门上拆下升降窗。
notes ascending and descending the scale
上升及下降音阶的音符
The elevator works like this: the car which carries passengers travels up and down the lift shaft between guide rails.
电梯的工作原理是这样的:载有乘客的电梯厢在升降井里沿着两旁的导轨上下运行。
Sales were climbing after prices were lowered.
价格下降后，销售马上上升了。
Problems of "pushdown" and "pullback" on a commutative ring
交换环上的“下降”问题和“上升”问题
Profit goes up in proportion to the fall in overhead cost .
利润上升与间接费用成本下降成比例。
Raised text will become superscript, and lowered text will become subscript.
提升/降低的字符将转换为上标/下标。
Pulses have fast rise and fall times, and minimal droop.
脉冲能迅速上升和下降，减少误差。
The price of carrots consequently rises and the price of rice declines.
结果是胡萝价格上升，稻米价格下降。
Far from falling, the price of commodity go on rising.
非但没有下降，商品的价格还继续上升。
It's probable that production will decrease and prices will increase.
生产可能下降，价格可能上升。
The stem rises and lowers as the valve is opened and closed.
当阀门开启或关闭时，阀杆上升或下降。
Look, the yo-yo can rise and fall.
看，溜溜球既可以上升也可以下降。
A yo-yo can rise and fall.
溜溜球既可以上升也可以下降。
The rise and fall of the temperature is caused by the wind.
气温的上升和下降是刮风引起的。