Matlab-course

Electronics and Circuit Analysis with MATLAB

WCDMA的仿真代码,包含信道编码，交织，速率匹配，调制，扩频，信道模型，RACK接收机.(wcdma_simulink code)

Sky lab calculate position of satellite in GNSS systems and calculate elevation and azimuth them and show them.

contrast adjusment Contrast is the difference in luminance or color that makes an object (or its representation in an image or display) distinguishable. In visual perception of the real world, contrast is determined by the difference in the color and brightness of the object and other objects within the same field of view. Because the human visual system is more sensitive to contrast than absolute luminance, we can perceive the world similarly regardless of the huge changes in illumination over the day or place to place. The maximum contrast of an image is the contrast ratio or dynamic range

This is a code in matlab for face recognition using PCA

说明：  BP网络是通过输入层到输出层的计算来完成的。多于一层的隐含层虽然能在速度上提高网络的训练,但是在实际应用中需要较多的训练时间,而训练速度可以用增加隐含层节点个数来实现,因此在应用BP神经网络进行预测时,选取只有一个隐含层的三层BP神经网络就足够了。(The BP network is completed through the calculation of the input layer to the output layer. Although the hidden layer of more than one layer can improve the training of network in speed, more training time is needed in practical application, and the training speed can be realized by increasing the number of hidden layer nodes. Therefore, when the BP neural network is used to predict, the three layer BP neural network with only one hidden layer is sufficient.)

主动轮廓模型CV算法，实现核磁共振脑实质分割(active contour CV Algorithm)

说明：  Text detection technique using canny edge detector

说明：  从wind采集期权数据并整理成矩阵形式，包括计算隐含波动率等(Collect options trading data, and make the data readable, calculate the implied volatility)

籽子群优化算法优化BP神经网络，使用优化后的神经网络对图像进行分割。包括：籽子群优化算法，籽子的编码，最优权值和阈值的后成，基于籽子群优化算法的神经网络的培训，图像的分割。(The BP neural network optimized by Particle Swarm Optimization　algorithm for image segmentation)