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Baseband transceiver for code-shifted reference impulse-radio ultra-wideband (CSR IR-UWB) system.

机译:用于码移参考脉冲无线电超宽带(CSR IR-UWB)系统的基带收发器。

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摘要

In this thesis, synchronization techniques and baseband transceiver design are studied for the recently emerging code-shifted-reference (CSR) impulse radio (IR) ultra-wide band (UWB) systems.;Baseband transceiver design has been implemented for the differential CSR IR UWB system. For the transmitter side, in order to implement the pulse amplitude modulation, both the variable gain amplifier (VGA) based and the operational amplifiers (Op-Amp) based approaches are studied. For the receiver side, a non-coherent energy detection structure is implemented with the Lattice ECP2 field-programmable gate array (FPGA) evaluation board.;Synchronization of the CSR IR UWB systems consists of frame and symbol timing recovery. A phase-lock-loop (PLL) is employed to recover the pulse (frame) repeat clock, and three code synchronization techniques (direct searching, partial and complete minimum Euclidean distance searching) are developed to group the frames into the symbol level. Monte Carlo computer simulations demonstrate that the complete minimum Euclidean distance searching provides the best performance among all three search techniques.
机译:本文研究了最近出现的码移参考(CSR)脉冲无线电(IR)超宽带(UWB)系统的同步技术和基带收发器设计。 UWB系统。对于发射机端,为了实现脉冲幅度调制,研究了基于可变增益放大器(VGA)和基于运算放大器(Op-Amp)的方法。对于接收器端,采用莱迪思ECP2现场可编程门阵列(FPGA)评估板实现了非相干能量检测结构。CSR IR UWB系统的同步包括帧和符号定时恢复。锁相环(PLL)用于恢复脉冲(帧)重复时钟,并且开发了三种代码同步技术(直接搜索,部分和完全最小欧几里得距离搜索)以将帧分为符号级。蒙特卡洛计算机仿真表明,完整的最小欧几里得距离搜索在所有三种搜索技术中均提供了最佳性能。

著录项

  • 作者

    Wei, Chen.;

  • 作者单位

    Dalhousie University (Canada).;

  • 授予单位 Dalhousie University (Canada).;
  • 学科 Engineering Electronics and Electrical.
  • 学位 M.A.Sc.
  • 年度 2010
  • 页码 137 p.
  • 总页数 137
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 非洲史;
  • 关键词

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