instfreq

基于matlab的OFDM仿真程序； 我再论坛找了很多OFDM的代码和文章,但总有遗患,为什么呢原因是大部分只有简单的映射,IDFTDFT变换等等,但主要的同步和信道估计去没有人提出来,甚至做出来.. 现在我终于找到了一份,它以FUNCTION的形式,再现了OFDM映射,IDFTDFT,同步(时间频率同步)和信道估计,以及频率偏移的估计等一系列代码.(Based on the OFDM matlab simulation program I' ll find a lot of forums and articles OFDM code, but there are left suffering, why because most only simple mapping, IDFTDFT transformation, etc., but the main synchronization and channel estimation to no one proposed, and even do it .. and now I finally found a copy of it in the form FUNCTION, Reproduction of OFDM mapping, IDFTDFT, synchronous (time and frequency synchronization) and channel estimation, and the estimated frequency offset a series of code.)

系统参数变化，用集合卡尔曼滤波器估计其变化(System parameters used to estimate the changes in the ensemble Kalman filter)

qpsk通过信道信噪比估计，包括qpsk，8psk，16psk，16qam(qpsk through the channel SNR estimation)

c++ lession 10 chapters Implement a template class EnhancedSafeArray, which is a type of SafeArray. The class SafeArray implementation is given in safearray.h. Class SafeArray is a class that wraps a regular C++ array. It is considered a safe array class since it handles out of bounds array indexing through exception handling. Your class EnhancedSafeArray will augment the class SafeArray by supporting a copy constructor, a method to return the size of the array, an assignment operator, and an equality test operator.

使用VisualStudio2008开发的VC调用matlab的示例小程序。matlab具有较强的数据运算能力，而VC可以提供一个较好的界面，因此把两者结合起来进行混合编程。本代码提供一个较好的显示。(VC call matlab using VisualStudio2008 developed sample applet. matlab has a strong computing power, the VC can provide a better interface, so to combine the two mixed programming. This code provides a better display.)

多自由度比例阻尼系统matlab模态分析，包括各种输出频响图形。(Matlab multiple degrees of freedom damped system modal analysis, including the output frequency response graph.)

函数回调实例。用M文件可以更好的把握整个程序的全局，更能方便的实现函数回调。(Function callback instance. M-file can be used to better grasp the overall situation of the whole process, more convenient to implement the function callback.)

一束光通过一个透明圆柱体，圆柱后有一个屏幕，程序最终反映屏幕上的 图象随圆柱半径的变化而变化。其中光强分布是采用相干叠加原理，因为其中采 样点数目不足，所以光强分布的结果和真实的有一定差距。增加采样点数目和改 变采样点范围能够改善输出光强的结果逼真程度。(一束光through a transparent cylinder, a cylindrical post-screen process will ultimately reflect the on-screen image with the cylindrical radius change. Light intensity distribution of which is the principle of coherent superposition, because the insufficient number of sampling points, so light intensity distribution of the results and have some real gaps. Increase in the number of sampling points and to change the scope of sampling points can improve the outcome of the output light intensity the degree of realism.)

code for watermarking all ok

这是有关网络互联的一个大型课程设计，应用了ospf，nat等来实现的(This is the network interconnection of a large course design, application of the ospf, nat, etc. to achieve)