FIL_SHARP

In this paper, we investigate the timing and carrier frequency offset (CFO) synchronization problem in decode and forward cooperative systems operating over frequency selective channels. A training sequence which consists of one orthogonal frequency-division multiplexing (OFDM) block having a tile structure in the frequency domain is proposed to perform synchronization. Timing offsets are estimated using correlation-type algorithms. By inserting some null subcarriers in the proposed tile structure, we propose a computationally efficient subspace decomposition- based algorithm for CFO estimation. The issue of optimal tile length is studied both theoretically and through simulations. By judiciously designing the tile size of the pilot, the proposed algorithms are shown to have better performance, in terms of synchronization errors and bit error rate, than the time-division multiplexing-based training method and the computationally demanding space-alternating generalized expectation-maximization

CHOOSENK All choices of K elements taken from 1:N

完整的在LTE标准下MIMO+OFDM仿真程序 (LTE system simulation about MIMO+OFDM)

边界元算法求解正方形导热问题实例。一个简单的二维导热模型，用BEM算法求解，用于学习边界元编程。(Boundary element method for solving square conduction problem instances. A simple two-dimensional heat conduction model, using BEM algorithm for learning boundary element programming.)

运用平面波展开法模拟光子晶体光纤中的带隙结构(The use of the plane wave expansion method photonic crystal fiber bandgap structure)

voice regognition using LPC

EZresize allows you to resize an image easily and quickly by way of a bilinear interpolation algorithm

（实验）快速傅里叶变换及其应用。包含fft实验的所有源程序，实现fft的基本功能。((Experimental) Fast Fourier Transform and Its Applications. Contains all the source code of the fft experiment, to achieve the basic functions of the fft.)

matlab从零到进阶的程序文件,按章节分类(matlab from zero to advanced program files)

用于基于图像纹理特征提取的图像检索，其中包括matlab中自带的graycomatrix和graycoprops两个m文件，和四个用于提取图像纹理特征及图像检索的m文件(For image retrieval, including matlab comes graycomatrix, and graycoprops two m files, and four m-files used to extract image texture features and image retrieval based on image texture features extracted)