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1、 毕 业 设 计 （论 文）设计（论文）题目:_基于单片机的信号发生器设计_ 单 位（系别）：_学 生 姓 名：_专 业：_班 级：_学 号：_指 导 教 师：_答辩组负责人：_填表时间： 20 年 月重庆邮电大学移通学院教务处制编 号：_审定成绩：_重庆邮电大学移通学院（毕业设计）I摘 要随着现代电子技术的飞速发展，电子测量技术不断完善，信号发生器作为电子测量技术的关键设备也不断更新，信号发生器的频率精度和频率稳定性已成为关注的焦点，国内信号发生器频率精度不高，频率稳定性差，成为约束信号发生器技术发展的瓶颈。本文从提高信号发生器的频率精度和稳定性的角度出发，利用单片机和频率控制实现信号幅度数
2、字存储和转换的方案和实现。在本文中，对信号发生器硬件系统的设计过程进行了研究，并进行了电路设计，充分发挥了高精度，高稳定性的特点。然后，软件系统的设计从整体软件流程图计划。整个软件系统分为程序初始化模块，键盘显示模块，频率控制字计算模块，频率控制字传输模块等，频率输出控制更准确。在本文中，分析了数字信号发生器组装和调试的硬件系统，组装和调试过程，故障现象的组装和调试过程进行了分析和解决;在完成硬件系统的基础上，然后软件逐步调试，获得准确的测试数据，通过最终的测试数据验证数字信号发生器具有高精度和高稳定性的优异性能。最后，本文总结和展望了整个设计和验证过程，提出了进一步提高信号发生器精度和稳定性
3、的思想。它还提出了如何提高输出频率范围的想法。如何进一步提高数字信号发生器的性能和未来的研究工作。【关键词】信号发生器 髙性能 高精度 高稳定度 单片机重庆邮电大学移通学院（毕业设计）IIABSTRACTWith the rapid development of modern electronic technology, electronic measurement technology continues to improve, the signal generator as the key equipment of electronic measurement technology is
4、also constantly updated, the signal generator frequency accuracy and frequency stability has become the focus of attention, the domestic signal generator frequency Accuracy is not high, the frequency stability is poor, become a constraint signal generator technology development bottleneck. In this p
5、aper, the frequency and stability of the signal generator to improve the accuracy and stability of the use of single-chip and frequency control to achieve signal amplitude digital storage and conversion program and implementation.In this paper, the signal generator hardware system design process was
6、 studied, and the circuit design, give full play to the high precision, high stability characteristics. Then, the software system is designed from the overall software flow chart. The whole software system is divided into program initialization module, keyboard display module, frequency control word
7、 calculation module, frequency control word transmission module, focusing on frequency control word calculation method improvement, frequency output control more accurate.In this paper, the hardware system, the assembly and debugging process of the digital signal generator assembly and debugging are
8、 analyzed and the process of assembling and debugging the fault phenomena is analyzed and solved. On the basis of the hardware system, the software is gradually debugged and obtained accurately Of the test data, through the final test data to verify that the digital signal generator with high accura
9、cy and high stability of the excellent performance.Finally, this paper summarizes and prospects the whole design and verification process, and puts forward the idea of further improving the accuracy and stability of the signal generator. It also raises the idea of how to increase the output frequenc
10、y 重庆邮电大学移通学院（毕业设计）IIIrange. How to further improve the performance of digital signal generator and future research work.【Key words】signal generator high performance high precision high stability single chip重庆邮电大学移通学院（毕业设计）IV目 录摘 要 .IABSTRACT.II引 言 .1第一章 绪 论 .2第一节 研究背景 .2第二节 研究现状 .2第三节 研究目的及意义 .4第二章 方案设计 .6第一节 方案比较 .6一、方案一 .6二、方案二 .6三、方案三 .7四、选出方案 .7第二节 芯片选择 .
