【作者】 汪峰；

【导师】 白长清；

【作者基本信息】 北京邮电大学 ， 通信与信息工程， 2007， 硕士

【摘要】 随着电子技术、网络技术的飞速发展，嵌入式系统的互联和无线通信的未来嵌入式系统发展的趋势。32位高性能嵌入式处理器的广泛使用，一方面满足了嵌入式高速处理的需要，另一方面为稳定、高速、可靠的运行嵌入式操作系统提供了硬件平台。嵌入式操作系统的使用极大地加速了软件开发速度，提高了系统的稳定性与安全性，是目前嵌入式研究的重点。其中Linux操作系统由于其源码开放、价格优势、内核微小、资源丰富且可剪裁配置，在嵌入式系统中得到了广泛应用。正交频分复用(OFDM)技术是一种多载波数据调制技术，随着DSP芯片技术的发展，采用64／128／256QAM技术的高速Modem逐步引用，人们开始越来越多的集中精力开发OFDM技术在无线通信中的应用。更多还原

【Abstract】 Along with the development of electron technic and network, interlink and wireless communication will be the trend of embedded system development.The widely used 32-bit embedded CPU not only satisfies the need of high-speed processing, but also provides a platform which makes the embedded operating system run steadily, speedily and credibly. Operating system is the weight-bearing point in fields of Embedded system, and greatly accelerates the software development and enhances the system’s stability and security. As the advantage of price, open and rich resource, tiny kernel, Linux has been widely used in embedded system.OFDM(Orthogonal Frequency Division Multiplexing) is a multi-carrier data modulation technology. With the development in DSP chip technology, and the import of 64/128/256QAM technology in fourier transform/inversion and high-speed modem, people are devoting more and more vigor in developing the application of OFDM in wireless communication.更多还原