waveanalysis

说明：  现代谱估计的源程序，包括直接法，间接法和窗函数法(Modern Spectral Estimation of source, including direct, indirect method and the window function method)

The Phantom of instantaneous

投影逼近子空间跟踪(past)算法的实现以及和多重信号分类(music)算法的对比。内附注释(Projection approximation subspace tracking (past) algorithm and implementation as well as multiple signal classification (music) algorithm comparison. Included comments)

Store contains 48 * 48 blackbody, including English and Japanese alphanumeric characters, special symbols(Store contains 48* 48 blackbody, including English and Japanese alphanumeric characters, special symbols)

This is the simulink model and also the matlab function code for the interleaver section in the IEEE 802.11a Transmitter Design.

This paper presents a novel algorithm of hiding secret messages by applying mathematical lemmas and information theory. The proposed algorithm can hide more information with acceptable embedded rate and achieves requirements of information hiding algorithm and simply information extracting. The main idea is applying modern algebra to solve the information hiding problem in multimedia. In order to prevent some attacks on stganography, hidden initial bits of image data pixels are chosen randomly. The extracted information are achieved without the reference of the original image and extracted keys. The experiment results show that our approach is effective and reliable.

说明：  引入具有平移不变性和良好的方向分析能力的双树复小波变换对源图像进行多尺度分解;然后对分解得到的各尺度的高频子带采用基于跨尺度的邻域空间频率的融合策略,最高层的低频子带采用基于改进的邻域熵的融合策略进行融合处理;最后对融合后的各个频带进行双树复小波逆变换,重构出融合图像(The dual tree complex wavelet transform with translation invariance and good direction analysis ability is introduced to decompose the source image in multi-scale; then the fusion strategy based on the cross-scale neighborhood space frequency is adopted for the high-frequency subband of each scale obtained by decomposition, and the fusion strategy based on the improved neighborhood entropy is adopted for the low-frequency subband of the highest level; finally, each frequency band after fusion is carried out Double tree complex wavelet inverse transform to reconstruct fusion image)

C++基于栈实现行编辑程序，输入#表示退格，输入@表示退行，CTRL+Z表示结束。(C++ stack implementation based on-line editing program, enter the# represents the backspace, enter @ represent regression, CTRL+Z indicates the end.)

将GPS得到的经纬度，大地坐标，通过高斯投影正算，得到平面直角坐标 文件大小不够，再增加了高斯投影的pdf文档(The longitude, latitude and geodetic coordinates obtained by GPS are corrected by Gauss projection, and the plane rectangular coordinates are obtained.)

这是一个可执行的向量量化vector编码程序,希望对大家有所帮助(This is an executable vector encoding vector quantization process, I hope all of you to help)