通信工程科研训练实验报告.doc

西安邮电大学 通信与信息工程学院 科研训练 报告 专业班级： 通工1404 学生姓名： 贾陈 学 号: 0314114 班内序号: 18  目录 摘要 1 引言 2 算术编码 3 心得体会 4 参考文献 5  摘要 科研训练做专业英语翻译以及使用MATLAB进行仿真，主要利用MATLAB实现几种仿真如滤波器组.熵.无损数据压缩.和一些编码赫尔曼编码. 包括：高阶赫尔曼编码.自适应赫尔曼编码.指数哥伦布可变长度码.算术编码（基于字典的编码.）.从而掌握所翻译文献的知识。最后通过对算术算法特点和应用方向的研究，阐明其编码原理及其在图像、数据压缩领域不可取代的地位及在处理流片段数据所具有的在压缩比和灵活性方面的优势，展示出算术编码的强大生命力和独特优势。利用MATLAB软件对仿真程序进行了调试，验证算术编码对数据压缩的可行性。利用VisualC++软件进行仿真，应用自适应算术编码压缩图像，验证了自适应算术编码压缩图像的可行性本实训主要的目的是让学生了解通信工程建设的过程以及各模块的基本操作流程，培养学生的团队协作能力和动手操作能力，让同学熟悉并且掌握各种绘图软件 。 关键词;滤波器 赫尔曼编码 算术编码 压缩图像 abstract Do research and training professional English translation and the use of MATLAB simulation, the main use of MATLAB to achieve several simulation such as filters. Entropy. Lossless data compression and encoding. Some Herman encoding. Including: high order Herman encoding. Herman Columbo. Adaptive encoding index variable length code. Arithmetic encoding (dictionary based encoding). In order to master the translation of literature knowledge. Finally, through the study of arithmetic algorithm characteristics and application direction, clarify its encoding principle in the field of image data compression, and its irreplaceable position and flow with the fragment data in compression ratio and flexibility in processing, showing the powerful life force arithmetic encoding and unique advantage. MATLAB software is used to debug the simulation program to verify the feasibility of arithmetic coding for data compression. Using VisualC++ simulation software, the application of adaptive arithmetic encoding of image compression, verify the feasibility of adaptive arithmetic encoding image compression the training main purpose is to let the students understand the communication engineering construction process and the module of the basic operation process, cultivate students teamwork skills and hands-on ability, let the students be familiar with and understand a variety of graphics softw