Considering that traditional UWB-IR system repeats and transmits very short pulses for each bit, an internally adaptive LDPC coded UWB-IR system to improve the repetition code was proposed.
针对传统UWB - IR系统重复编码方法进行改进，提出了一种内部自适应的LDPC编码uwb - IR系统实现方案，即自适应选择LDPC码的码率和重复编码的数目。
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.
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。
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.
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。
In dense multipath environments, IR-UWB (impulse Radio-Ultra Wideband) signals suffer from severe time dispersion which distorts the impulse wave.
脉冲超宽带(IR - UWB)信号在密集多径环境中存在严重的时间弥散，会产生波形失真。
In this paper a novel gated integrating method for IR-UWB correlation receiver is proposed, which USES linear time-invariant system to approximate integrator with discharging.
提出一种应用于脉冲超宽带相关接收机的新型门控积分方法，它利用简单的线性时不变系统实现带清除的积分。
The structure of receiver in typical modulation Impulse Radio Ultra Wide Band (IR-UWB) is discussed, and the best IR-UWB receiver on AWGN cannels is given.
在分析AWGN信道特性的基础上，通过研究典型调制方式下的超宽带冲激无线电信号(IR - UWB)的接收机结构，找到了一种IR - UWB最佳接收机。
The selection principle of the template pulse for IR-UWB communication system is also investigated.
最后，文中还对IR-UWB通信系统接收机模板信号的选取原则做了初步的探讨。
Wide beam width in horizon plane would be expected in antenna design for IR-UWB through-the-wall detection to cover most area of the room.
在脉冲超宽带穿墙检测与定位当中，要求天线在水平面内具有宽波束以达到对房屋内部区域的有效覆盖；
The difference between UWB and the traditional direct sequence spread spectrum technology was analyzed, and the simulation models of TH-IR and DS-IR systems were installed.
首先分析了超宽带技术与传统的直接序列扩频技术的区别，然后建立了TH - IR和DS - IR超宽带系统的仿真模型，得到两种IR系统在多种干扰条件下的误码率性能。
The difference between UWB and the traditional direct sequence spread spectrum technology was analyzed, and the simulation models of TH-IR and DS-IR systems were installed.
首先分析了超宽带技术与传统的直接序列扩频技术的区别，然后建立了TH - IR和DS - IR超宽带系统的仿真模型，得到两种IR系统在多种干扰条件下的误码率性能。
应用推荐