虚拟任意波信号发生器研究

【作者】 樊炜；

【导师】 宋开臣；

【作者基本信息】 浙江大学 ， 机械电子工程， 2003， 硕士

【摘要】 针对传统台式任意波信号发生器体积庞大、接口不灵活、系统封闭、功能固定、价格昂贵等缺点，本文论述一种新型便携式虚拟任意波信号发生器：它在必要的硬件平台的支持下，在通用计算机上通过软件实现仪器中数据分析处理、人机交互和显示等几部分功能模块，有性价比高、功能多、灵活性强、人机界面好、使用方便等优点。 本文分为六章： 第一章阐述了课题的由来和研究意义，并讨论了其研究内容和目标。 第二章论述虚拟任意波信号发生器硬件系统设计，详细说明了各主要电路模块的实现。 第三章论述虚拟任意波信号发生器软件系统设计。 第四章就虚拟任意波发生器波形误差的来源、种类进行了定性、定量分析，提出了减少误差的具体方案。 第五章描述了虚拟任意波发生器实际产生的波形并加以分析。 第六章对全文进行了简明的总结，并对该领域在未来的研究做了展望。 总之，本课题在理论和实践上均取得了一定的突破。在理论上，提出了利用COM组件技术实现虚拟仪器开发平台驱动程序的观点，解决了长期以来驱动程序不能通用的问题；在应用上，首次在信号发生器中采用以USB、FPGA和DDS相结合的硬件电路设计，取得了很好的效果，达到了产品级的设计要求。更多还原

【Abstract】 In contrast to the traditional desk arbitrary wave generator which has disadvantages of large volume, inflexible interface, closed system, fixed function and expensive price, with the support of essential hardware platform and by relevant software on common computer, a new-style portable generator with the advantages of low price vs high performance, strong agility, more functions, friendly interface and easy to use discussed in present thesis is designed to realize the modules of display, interchanging between human and machine as well as datum analysis & treatment in instrument, etc.Present thesis is divided into six chapters.The first chapter discusses this study’s reason and its research significance. Furthermore, explains the contents and research objective.The second chapter expatiates the hardware system design of the generator and the realization of its main circuit modules.The third chapter expounds the software system design of the generator.The forth chapter quantitatively & qualitatively analyzes the sources and varieties of wave shape error, and offers a concrete proposal to reduce the error for the generator.The fifth chapter describes and analyzes the actual wave shape engendered by the generator.The sixth chapter gives a succinct statement to the whole thesis and prospects for the future in this field.For the above mentioned, present study acquires certain breakthrough in both theory and practice. In theory, it gives the idea of realizing the driver of virtual instrument development platform by COM component technology, which solved the uncommon issue of the driver. In practice, a hardware circuit design combined with USB, FPGA and DDS is well achieved and reached the design standard of product level.更多还原