mohukongzhi

matlab source code for watermarking.

svm 的参数优化，利用交叉验证法选择最优参数c g，最终提高训练集的分类准确率,更好的提高分类器性能(Svm parameter optimization, the use of cross-validation method to the optimal parameter c g, and ultimately improve the training set classification accuracy，better improve the classifier performance)

可以画出双曲线的图形,比较好用,同时也可为大家编写画其他函数曲线提供借鉴.(Hyperbola can be drawn in the graphics, more convenient, but also for the preparation of U.S. painting other function curve for reference.)

Kalman Filtering and Neural Networks

Adaptive filtering constitutes one of the core technologies in digital signal processing and finds numerous application areas in science as well as in industry. Adaptive filtering techniques are used in a wide range of applications, including echo cancellation, adaptive equalization, adaptive noise cancellation, and adaptive beamforming. Acoustic echo cancellation is a common occurrence in today’s telecommunication systems. The signal interference caused by acoustic echo is distracting to users and causes a reduction in the quality of the communication. This paper focuses on the use of LMS and NLMS algorithms to reduce this unwanted echo, thus increasing communication quality.

此文件为ofdm的matlab仿真程序，详细画出了时域和频域的相关图，以及调制信号的实虚部。(This file is the matlab ofdm simulation program, detailed drawing of the time domain and frequency domain correlation diagram, and the modulation signal real and imaginary parts.)

poisson的PDF&CDF繪圖直接打開檔案RUN即可，生成圖像另有顏色標記(poisson' s PDF & CDF drawing RUN can open the file directly to generate the image and another color marker)

OFDM系统仿真程序和论文，包括系统的构造，及各部分的仿真(OFDM system simulation program and papers, including the system' s structure, and the part of the simulation)

说明：  matlab程序计算四阶循环累积量，，输入两个参数，返回4个(matlab program to calculate fourth-order cyclic cumulant)

说明：  模板匹配的程序一个简单的例子 能在图中找出指定目标 通过模板匹配来实现(template matching progarm)