Synchronization is crucial to the system performance for DS-UWB system with RAKE receiver.
采用RAKE接收的DS-UWB系统中，同步对系统的性能至关重要。
The reaserch in this paper is on ciruit design of system constructing frame in base-band of DS-UWB.
本文是基于DS-UWB对基带组帧的电路实现进行的研究。
The paper analyses and deduces the temporal expression and PSD of multiplicate typical UWB signal. PPM-TH-UWB and PAM-DS-UWB are the object in the research of paper.
接着论文具体分析和推导了几种典型的超宽带信号的时域表达式及其功率谱密度，PPM-TH-UWB信号、PAM-TH-UWB信号和PAM-DS-UWB信号都是本文研究的对象。
The MB-OFDM UWB systems can capture multi-path energy more efficiently than DS-UWB. Much work has been done on the channel estimation of traditional narrow-band OFDM.
与直接序列扩频的方案相比，基于多频带OFDM的UWB系统能更有效地捕获多径能量。
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。
Based on the characteristics analysis of the Gauss impulse in time and frequency domains, we generate the UWB signal by 2pam-ds modulation.
在对高斯脉冲波形的时域和频域特性进行分析的基础上，采用直接序列扩频方式，进行脉幅调制产生超宽带信号。
Based on the characteristics analysis of the Gauss impulse in time and frequency domains, we generate the UWB signal by 2pam-ds modulation.
在对高斯脉冲波形的时域和频域特性进行分析的基础上，采用直接序列扩频方式，进行脉幅调制产生超宽带信号。
应用推荐