摘要
超宽带通信系统采用极窄脉冲作为信息传递的载体,由此带来精细的时间分辨率和极低的功率谱密度,因而使得UWB信号的捕获是UWB系统设计所面临的一项重大挑战。论文提出的一种基于比特翻转和减小搜索空间的算法,在不增加系统复杂度的情况下,可以比较明显地提高捕获速度。
UWB communication system, for using very narrow pulses as the carrier for information transmission and thus causing the fine time resolution and very low power spectra density, makes the acquisition of UWB signals is the most important challenge in UWB system design. In this paper, a new strategy based on search space reduction and bit reversal algorithm is proposed, which could magnificently improve the speed of acquisition without additional complexity.
出处
《信息安全与通信保密》
2009年第4期59-61,共3页
Information Security and Communications Privacy
关键词
快速捕获
减小搜索空间
比特翻转
rapid acquisition
search space reduction
bit reversal
