VC-part-2

本论文以OFDM系统为基础，介绍了OFDM系统的基本原理，以及使用OFDM技术的优势所在，并且展望了今后的无线移动技术的发展前景。在简单介绍OFDM原理的同时，着重阐述了OFDM系统在不同信道环境和不不同实现方式下的误码性能。主要包括了OFDM系统在加性白高斯信道，在加性白高斯信道和多径干扰两种不同信道环境下系统的误码性能，其中后者还研究了系统在有保护间隔与无保护间隔的误码性能比较。在理论分析的基础 (This thesis is based on the OFDM system, the basic principle of the OFDM system, as well as the advantages of using OFDM technology, and future prospects for the development of future wireless and mobile technologies. OFDM principle in brief, focusing on the BER performance of OFDM systems under different channel conditions and different implementations. Including OFDM system in additive white Gaussian channel, additive white Gaussian channel and multipath interference of two different channel environment, the system BER performance, the latter of which also studied the system in a protected interval without guard interval BER performance comparison. The basis of theoretical analysis)

二维快速离散变换,可快速实现二维快速离散变换，不可多得的程序。(Two-dimensional fast discrete transform, can quickly realize two-dimensional fast discrete transform, a rare procedure.)

用VC++做的考勤系统，ACCESS数据库操作(VC++ to do with the attendance system, ACCESS database operations)

Windows下的多媒体定时器源码，可以定时精度到1ms，是一些在Windows下开发软实时系统的一个比较好的选择！(Windows source code under the multimedia timer can be timed to a precision of 1ms, some soft real-time in the Windows system, developed under a relatively good choice!)

source code vb6 to send sms to gsm module

VC串口通信modbus协议源代码,测试可用。(modbus通信协议)(VC serial communication protocol source code modbus)

有客户端的聊天软件，可实现网络通讯，对于了解网络编程有帮助(A client chat software, network communications, network programming help for understanding)

说明：  c++实现克里金插值法并使用openGL展示等值线(Kriging Interpolation and OpenGL Display)

这是一个关于计算机图的一些简单操作的程序，初次作品，谢谢支持(This is a map on the computer of some simple operating procedures, the initial entries, I would like to thank support)

捷联惯导系统姿态解算，从IMU读入数据，输出数据与INS进行比对(Attitude Algorithm in Strap-down Inertial Navigation System )