英语翻译摘要：超宽带（ultra wideband,UWB）无线技术通信技术作为无线通信领域的新兴技术,凭借其高速率的传输、低功耗等特性,在军事、民用领域有着广泛的应用,逐渐成为无线通信领域研究

英语翻译摘要：超宽带（ultra wideband,UWB）无线技术通信技术作为无线通信领域的新兴技术,凭借其高速率的传输、低功耗等特性,在军事、民用领域有着广泛的应用,逐渐成为无线通信领域研究
英语翻译
摘要：超宽带（ultra wideband,UWB）无线技术通信技术作为无线通信领域的新兴技术,凭借其高速率的传输、低功耗等特性,在军事、民用领域有着广泛的应用,逐渐成为无线通信领域研究的一个学术热点.
本文主要对UWB通信定义进行了介绍,并且说明了UWB通信技术的主要优点和发展趋势.分析了作为UWB信号载体的高斯信号的时和频域特性,并且进行了图形分析,说明高斯信号适合于UWB通信系统.对直接序列扩频（DS-UWB）宽带信号进行了介绍,对直接序列扩频（DS-UWB）超宽带信号产生过程进行了时域分析.利用自相关函数进行了DS-UWB信号的功率谱的推导和分析,得出DS-UWB信号的功率谱的决定条件：发送脉冲的频谱和编码频谱.并且利用matlab7.0.1进行了仿真,对伪随机码周期Ns越长,频谱越趋于平坦这一结论进行了验证.
关键词：超宽带；高斯信号；时域；频域；直接序列扩频；功率谱

英语翻译摘要：超宽带（ultra wideband,UWB）无线技术通信技术作为无线通信领域的新兴技术,凭借其高速率的传输、低功耗等特性,在军事、民用领域有着广泛的应用,逐渐成为无线通信领域研究
Abstract:Ultra wide band or UWB is a new technology in the wireless communication area.With its high-speed transmission and low power consumption,it has been widely used in military and civil area,becoming a new academic hot spot in wireless communication area.
This paper primarily introduces the definition,advantages and future trend of UWB communication.It analyzes the time domain of Gaussian signal and features of frequency domain of UWB signal carrier,demonstrating that Gaussian signal is suitable for UWB communication system based on graphic analysis.The paper also introduces DS-UWB,and offers time-domain analysis on the process of DS-UWB.In the paper,DS-UWB's power spectrum is induced and analyzed by using auto correlation function,obtaining the decisive conditions of DS-UWB's power spectrum:send pulse frequency spectrum and coding freqnency spectrum; simulate it through matlab7.0.1; the longer pseudo-random code's Ns period,more flat the frequency spectrum would be,a conclusion which has been verified in this paper.

楼主注意，楼下无耻的复制我的答案！！！真是无耻透顶！！！
Abstract: Ultra wide band or UWB is a new technology in the wireless communication area. With its high-speed transmission and low power consumption, it has been widely...

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楼主注意，楼下无耻的复制我的答案！！！真是无耻透顶！！！
Abstract: Ultra wide band or UWB is a new technology in the wireless communication area. With its high-speed transmission and low power consumption, it has been widely used in military and civil area, becoming a new academic hot spot in wireless communication area.
This paper primarily introduces the definition, advantages and future trend of UWB communication. It analyzes the time domain of Gaussian signal and features of frequency domain of UWB signal carrier, demonstrating that Gaussian signal is suitable for UWB communication system based on graphic analysis. The paper also introduces DS-UWB, and offers time-domain analysis on the process of DS-UWB. In the paper, DS-UWB's power spectrum is induced and analyzed by using auto correlation function, obtaining the decisive conditions of DS-UWB's power spectrum: send pulse frequency spectrum and coding freqnency spectrum; simulate it through matlab7.0.1; the longer pseudo-random code's Ns period, more flat the frequency spectrum would be, a conclusion which has been verified in this paper.
Key words: UWB, Gaussian signal, time domain, direct sequence spread spectrum, power spectrum

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Abstract: ultra wideband (ultra wideband, UWB) wireless communication technology as the field of wireless communications technology, by virtue of its high rate transmission, low power and other charac...

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Abstract: ultra wideband (ultra wideband, UWB) wireless communication technology as the field of wireless communications technology, by virtue of its high rate transmission, low power and other characteristics, in the military, the civil domain has the widespread application, has gradually become the field of wireless communication research is an academic hotspot.
This paper focuses on the definition of UWB communication are introduced, and the UWB communication technology the main advantages and development trend.Analysis of the UWB signals as a vector of Gauss signal in the time and frequency domain characteristics, and analyzes the graphical analysis, illustrated by Gauss signal suitable for UWB communication system.On direct sequence spread spectrum (DS-UWB) signal are introduced, on the direct sequence spread spectrum (DS-UWB) UWB signal generation process in the time domain analysis.Use of the correlation function for the DS-UWB signal power spectrum derivation and analysis, draw DS-UWB signal power spectrum decision condition: sending pulse spectrum and code spectrum.And the use of MATLAB7.0.1 were simulated, the pseudo random code cycle Ns longer, spectrum more flat the conclusion was verified.
Key words: ultra wideband signal; Gauss; time domain; frequency domain; direct sequence spread spectrum; power spectrum

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