wangge

digital communication solution

用matlab实现模式识别里的K-均值聚类算法，算法简单(Pattern Recognition using matlab to achieve in the K-means clustering algorithm, the algorithm is simple)

The basic steps of the connected-component text extraction algorithm are given below, and diagrammed in Figure 10. The details are discussed in the following sections. 1. Convert the input image to YUV color space. The luminance(Y) value is used for further processing. The output is a gray image. 2. Convert the gray image to an edge image. 3. Compute the horizontal and vertical projection profiles of candidate text regions using a histogram with an appropriate threshold value. 4. Use geometric properties of text such as width to height ratio of characters to eliminate possible non-text regions. 5. Binarize the edge image enhancing only the text regions against a plain black background. 6. Create the Gap Image (as explained in the next section) using the gap-filling process and use this as a reference to further eliminate non-text regions the output.

波束形成的能量分配算法，与中继选择方案及Larsson方案做对比( U6CE2 u675F u5F62 u6210 u7684 u808F u0206 u9141 u9121 u6CD5 uFF0C u4E0E u4E2D u7E7 u9009 u62E9 u65B9 u6848 u53CALarsson u65B9 u6848 u505A u5BF9 u6BD4)

ofdm 64QAM simulink ofdm 64QAM simulink

exponential distribution

使用麦克风阵列的声源定位和跟踪已成为室内声学，电话会议系统和声音产生对象的跟踪的关注焦点。估计源定位的当前方法取决于麦克风对之间的传统时间延迟估计技术，然而，忽略环境噪声，来自周围的反射和封闭空间中的混响。在本研究中，设计并开发了基于3D麦克风阵列的声源定位器和跟踪器（ASLT），用于实时源检测和定位。(Acoustic source localization and tracking using microphone arrays has become a focus of interest in room acoustics, teleconference systems and tracking of sound producing objects. The current methods to estimate the source localization depend on conventional time-delay estimation techniques between microphone pairs, however, ignoring the ambient noise, reflections from surrounding and reverberation in the closed space. In this study, an acoustic source localizer and tracker (ASLT) based on 3D microphone array is designed and developed for real time source detection and localization.)

说明：  高斯赛德尔和雅克比迭代求解方程的matlab程序(the Jacobi and GaussSediel )

Fourier transform optics

srm 6/4 machin edesign using matlab m file