Research-Assignment-TAHER_G200905290

DVB-T系统，包含外编码，外交织，内编码，内交织，OFDM帧结构等等(DVB- T system, including the coding, interweave, the coding, the interweave, OFDM frame structure and so on)

利用matlab实现图像的频域滤波，包括巴特沃斯低通、理想低通、高斯低通等(Using matlab for image filtering in frequency domain, including the Butterworth low-pass, ideal low-pass, Gaussian low-pass, etc.)

用matlab生成无标度网络，并对无标度网络进行分析(Using matlab to generate scale-free networks, and scale-free network analysis)

这是一个相对完整的OFDM通信系统的仿真设计，包括编码，调制，IFFT，上下变频，高斯信道建模，FFT，PAPR抑制，各种同步，解调和解码等模块，并统括系统性能的仿真验证了系统设计的可靠性。 (This is a relatively complete OFDM communication system simulation design, including coding, modulation, IFFT, and down conversion, Gaussian channel model, the FFT, PAPR suppression, and a variety of synchronization, such as demodulation and decoding module and system performance omnibus The simulation results show the reliability of system design.)

segments image F by using a split-and-merge approach based on quadtree decomposition. MINDIM (a positive integer power of 2) specifies the minimum dimension of the quadtree regions (subimages) allowed. If necessary, the program pads the input image with zeros to the nearest square size that is an integer power of 2. This guarantees that the algorithm used in the quadtree decomposition will be able to split the image down to blocks of size 1-by-1. The result is cropped back to the original size of the input image.

matlab code of celp coder

用meshless approcimation diffuse methode 模拟弦振动(String vibration simulation using meshless approcimation diffuse methode)

说明：  小波去噪，以Haar和db4小波基为例的去噪代码(wavelet，haar，db4)

Matlab_jiaoan：这是一个matlab教案(Matlab_jiaoan : This is a Matlab templates)

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