噪声发生器

And with Fourier transformation or its inverse transformation,the graph of this signal in the other domain is updated.

随着电子技术的不断发展，计算机技术与仪器技术结合得越来越紧密，出现了大量的任意波形发生器，它们能产生的波形不断丰富，除上面提到的基本波形外，还能产生Chirp信号、Sinc信号、MultiTone信号、脉冲信号以及各种噪声信号等。

Key words: communication technology; jitter generator; equivalent noise voltage model; jitter; field programmable gate arrayFPGA

关键 词：通信技术；抖动发生器；等效噪声电压模型；抖动；现场可编程门阵列

The measuring deviation of reverberation time at low frequency in reverberation room is large.

针对混响室低频混响时间测量的偏差大这一问题，提出对随机噪声信号进行限幅或改用一系列单频信号发生器作稳定激发可显著改善测量结果的偏差。

In this paper,An idea on the design of arbitrary waveform synthesizer which based on high speed digital and analog circuits is introduced.

文中介绍了一种基于高速数模电路的任意波形发生器设计思路及其工程实现模型，并就其相位噪声、杂散电平等性能加以分析。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。