digital_moddemod

⑴编程实现直方图均衡化 ⑵设计完成同态滤波器，并用之改善图象质量。 ⑶对某图像加入不同类型﹑不同强度的噪声（周期﹑椒盐噪声），并分别用空间域和频率域的方法抑制噪声。 (⑴ ⑵ programming histogram equalization filter design is completed with the state and used to improve the image quality. ⑶ image of a different intensity with different types of noise ﹑ (cycle ﹑ salt and pepper noise), respectively, with spatial and frequency domain methods of noise suppression.)

说明：  主要用于近红外光谱处理中光谱特征选择，是目前近红外光谱数据处理的重要方法之一。(Successive Projections Algorithm for NIR data analysis)

该matlab程序可用于近红外光谱一阶求导处理，程序经本人实测，简单好用。(The program can be used near-infrared spectroscopy first order derivative treatment program after I measured, easy to use.)

MATLAB绘图，包含了MATLAB常用的绘图命令，对学习MATLAB具有很大的帮助。(MATLAB graphics, including the popular MATLAB graphics commands, to learn MATLAB great help.)

2000年SCI上发表的两篇开创性的流行学习文章的仿真代码。关于LLE和ISOMAP的仿真程序，其中详细说明了实现的步骤。(2000 SCI published two seminal study popular articles simulation code.)

说明：  咬尾卷积码的MATLAB代码，讲的非常详细和深入(Biting tail convolutional code matlab code, said very detailed and in-depth)

本文主要是JTIDS的传输性能做了仔细的评估，并对其抗干扰做了一一的介绍。(The Joint Tactical Information Distribution System (JTIDS) provides jam-resistant digital communication of data and voice for command and control, relative positioning and identification. Many advanced technologies are adopted in JTIDS, such as frequency hopping, M-ary spread spectrum, error detection and correction.)

there is code for sampling a signal and adding random noise in signal...

用matlab gui编写的通过按钮获取编辑框中的数据，并在静态文本框中显示。(Prepared by using matlab gui button for edit box of the data and display the static text box.)

说明：  matlab code for cognitive radio