文档介绍：北京交通大学硕士学位论文
摘要 Y 585993
蓝牙技术是一种低成本、低功耗、短距离的无线连接技术。在后PC 时代,嵌入式设备的网络化是一大趋势,一方面由于嵌入式设各自身体积的限制,使得嵌入式设备所连接的网络要从有线网络向无线网络的方向发展,另一方面嵌入式设备对网络访问的成本和功耗要求都非常严格,因此嵌入式系统与蓝牙技术的结合有着巨大的发展前景。
基带层协议是蓝牙系统的底层核心协议,本文在概括介绍蓝牙技术标准、蓝牙协议架构、应用模式、实现和发展的基础上,对蓝牙基带核心协议进行了深入研究。通过对蓝牙硬件模块的划分和功能分析,给出了蓝牙基带IP模块实现结构和数据处理路径,并用VHDL描述语言设计了蓝矛基带79跳频算法。EDA仿真结果表明该算法能较好的满足设计目标与要求。本文同时还较详细地论述了蓝牙基带数据分组的处理流程,对其中的关键算法给出实现算法流程图。最后用VHDL设计了蓝牙基带数据分组的发送和接收模块,该模块内部集成了16位CRC(循环冗余度校验),8位 HEC(头错误校验)和1/3率FEC(前向纠错)的实现。仿真结果证明满足了设计要求。
本论文用VHDL语言实现了嵌入式蓝牙系统的部分功能,提供了硬件实现相应功能专用处理器的基础。仿真结果验证了设计的正确性和可行性。论文所研究内容适应当前科学技术的发展和更新,除了具有重要的理论和实践意义,还具有较大的商业价值。
关键词:
蓝牙,基带,跳频,VHDL,IP,分组,CRC
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北京交通大学硕士学位论文
Abstract
Bluetooth technology is a low·cost,low—power,short—range wireless connectivity an era of post—pc,the important trend is to connect the embedded devices onto one hand,because of the restriction on the bulk of the embedded devices,work on which embedded devices are
connected must change from the work to the the
other hand,the essential requirements of embedded devices are low cost and low power consumption,SO how bine the embedded systems with Bluetooth technology is currently investigated intensively.
Baseband protocol is the low layer core protocol in bluetooth system.
Based on the brief introducing bluetooth technology standard,protocol frame, application,implement and development,all about the baseband,this paper discussed the bluetooth baseband core protocol in the division of bluetooth hardware module and its function analysis,a new data process path in Baseband and the Baseband IP structure design are simulation of hop selection algorithm of the Baseband is designed in VHDL. EDA simulation indicates the hop algorithm can meet the design aims and needs data process path in Baseband is detailed
algorithm flow diagram is given in each key ,the receiving
and sending modules of bluetooth Baseband packet