本文是一个PPT文件，其中为我们介绍了PCM编码的基本过程-This article is a PPT file, which we introduced the basic process of PCM coding

用matlab实现smith圆图的基本思路和指导。-Using matlab circle diagram smith realize the basic ideas and guidance.

用户可选择不同权限进入系统。当以管理员权限进入系统时，可进行相应的成绩添加，查询，删除，修改，用户添加删除等功能，当以学生权限进入系统时，则只能进行成绩查询和密码修改等功能-Users can choose different access permissions. When access to the system administrator can add to the corresponding results, query, delete, modify, delete users and other functions, when the rights of students to enter the system, the results can only query and modify features such as password

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89S52的重要资料,为进行8位机设计的电子爱好者们提供一个入门的机会-89S52 important information that for the eight aircraft design of electronic enthusiasts provide a portal of opportunity

详细讲叙了单片机开发的注意事项，方法以及开发步骤等知识。-讲叙detailed attention to the development of a single-chip issues, methods and steps, such as the development of knowledge.

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IC卡热量表或水表，向IC卡写数据的格式-Heat meters or meter IC card, IC card to write data to the format

介绍了卡尔曼滤波的定义，并举了一个好例子使得卡尔曼滤波很容易理解 -Kalman filter, introduced the definition of a good example of both the Kalman filter makes it is easy to understand

计算器的功能实现 Java编写的计算器程序及源代码-Java calculator functions of the calculator to prepare procedures and source code