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A compressed sensing approach to ultra-wideband receiver design.

机译:一种用于超宽带接收机设计的压缩传感方法。

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摘要

One of the scarcest resources in the wireless communication system is the limited frequency spectrum. Many wireless communication systems are hindered by the bandwidth limitation and are not able to provide high speed communication. However, Ultra-wideband (UWB) communication promises a high speed communication because of its very wide bandwidth of 7.5GHz (3.1GHz-10.6GHz). The unprecedented bandwidth promises many advantages for the 21st century wireless communication system.;However, UWB has many hardware challenges, such as a very high speed sampling rate requirement for analog to digital conversion, channel estimation, and implementation challenges. In this thesis, a new method is proposed using compressed sensing (CS), a mathematical concept of sub-Nyquist rate sampling, to reduce the hardware complexity of the system. The method takes advantage of the unique signal structure of the UWB symbol. Also, a new digital implementation method for CS based UWB is proposed. Lastly, a comparative study is done of the CS-UWB hardware implementation methods.;Simulation results show that the application of compressed sensing using the proposed method significantly reduces the number of hardware complexity compared to the conventional method of using compressed sensing based UWB receiver.
机译:无线通信系统中最稀缺的资源之一是有限的频谱。许多无线通信系统受到带宽限制的阻碍,并且不能提供高速通信。但是,超宽带(UWB)通信由于其7.5GHz(3.1GHz-10.6GHz)的超宽带宽而有望实现高速通信。前所未有的带宽为21世纪的无线通信系统带来了许多优势。然而,UWB面临许多硬件挑战,例如对模数转换的高速采样速率要求,信道估计和实现挑战。本文提出了一种利用次奈奎斯特速率采样的数学概念压缩感知(CS)的新方法,以降低系统的硬件复杂性。该方法利用了UWB符号的独特信号结构。此外,提出了一种新的基于CS的UWB数字实现方法。最后,对CS-UWB硬件实现方法进行了比较研究。仿真结果表明,与基于压缩传感的UWB接收器的传统方法相比,使用该方法进行压缩传感的应用显着降低了硬件复杂度。

著录项

  • 作者

    Singh, Jodhbir.;

  • 作者单位

    Michigan Technological University.;

  • 授予单位 Michigan Technological University.;
  • 学科 Engineering Electronics and Electrical.
  • 学位 M.S.
  • 年度 2011
  • 页码 70 p.
  • 总页数 70
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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