脉冲无线电（简称UWB），可追溯至19世纪。至今UWB还在争论之中。UWB调制采用脉冲宽度在ns级的快速上升和下降脉冲，脉冲覆盖的频谱从直流至GHz，不需常规窄带调制所需的RF频率变换，脉冲成型后可直接送至天线发射。脉冲峰峰时间间隔在10 - 100 ps级。频谱形状可通过甚窄持续单脉冲形状和天线负载特征来调整。
按实现方式大致可分为两大类： 脉冲无线电（IR，IlnpulseRadio）和多带正交频分复用（OFDM，onhogonal Fre． quency Division Mult...
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又称脉冲无线电 Impulse Radio ; IR
脉冲无线电系统 pulsed radio system ; Impulse Radio
脉冲无线电超宽带 TH IR-UWB ; Impulse Radio-UWB ; Impulse Radio Ultra-Wideband
数字脉冲无线电 digital pulse wireless
跳时脉冲无线电 time hopping- impulse radio ; TH-IR
其中脉冲无线电超宽带 Impulse Radio-UWB ; IR-UWB
或脉冲无线电 impulse radio
要研究脉冲无线电 Impulse Radio
脉冲无线电多址联接 impulse radio multiple-access
Synchronization algorithms applied in IR-UWB (Impulse Radio-Ultra Wideband) communication systems are deeply studied in this dissertation.
脉冲无线电(IR:Impuse Radio)通信系统的同步技术是本论文的主要研究内容。
参考来源 - 脉冲无线电超宽带同步问题研究·2,447,543篇论文数据，部分数据来源于NoteExpress
使用正交模拟锁相环路对无载波的脉冲无线电系统实现多径捕获和同步提取。
The orthogonal analog phase lock loop is used to get the timing information of the impulse radio system and the multi-path component separation.
重点分析了脉冲无线电方式的原理，脉冲的几种产生方法，调制、发射以及脉冲信号的技术特点。
The principle of impulse radio (IR), several kinds of pulse generators, pulse modulation and signal emission for UWB radio, as well as characteristics of UWB-IR are mainly presented and concluded.
近年来，超宽带脉冲无线电UWB-IR传输技术以低功耗、高速率、低检测率和低截获率等特点受到军事通信领域的关注。
UWB-IR technology has been concerned in military communications in recent years because of its high data rate, low power consumption, low probability of detection and low probability of interception.
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