For a UWB communication system, by using differential characteristic of Herz magnetic dipole antenna, the narrow pulse can be produced from the rise edge of input square-wave signal.

在UWB通信中，利用赫兹磁偶极子天线的微分特性，由输入方波的上升沿产生窄脉冲。

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Pulse width Modulation device is a circuit which can produce square wave signal with fixed period and adjustable pulse duration ratio (pulse width).

脉宽调制器是一种能够产生周期固定而占空比(脉宽)可调的方波信号的电路。

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The simulation experiments shows that chaotic detection system is very sensitive to square wave signal and have strong restrain ability to any colored noise with zero mean.

分析了噪声对混沌检测的影响，仿真实验表明该混沌检测系统对方波信号非常敏感，对任何零均值色噪声均具有极强的抑制能力。

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