摘要
超宽带无线电系统中最常用和最典型的信号是时域上的极窄脉冲串。为了使超宽带系统的功率谱进一步平滑,增强系统隐蔽性和保密性,超宽带无线电系统往往都要破坏窄脉冲串的周期性,使所发射的相邻窄脉冲间的时间间隔进行伪随机的跳变。文章对超宽带基本理论、窄脉冲串时间间隔跳变的相关原理进行了介绍,提出了具体实现方法,给出了对实验样机的测试结果。
The narrow pulse train is commonly used in UWB radio system. In order to make the system difficult to being detected, the power spectrum of UWB pulses need smoothening. It is often implemented by destroying periodicity of the pulses, namely making the interval of pulses vary with the PN code. In this paper, the basic UWB theory and theory of interval varying are introduced, and the implementing method and the measuring results are also presented.
出处
《微计算机信息》
北大核心
2006年第02Z期172-174,共3页
Control & Automation
基金
兵科院某超宽带穿墙成像雷达项目
