MATLAB

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

说明：  偏最小二乘法的概述以及MatLAB的程序，非常详细！(An overview of partial least-squares method, as well as MatLAB procedures in great detail!)

说明：  样本的互相关函数与互协方差的估计值计算 (samples of the cross-correlation function and covariance among the estimated value)

地震信号处理当中应用小波去除面波干扰，小波变换后进行阈值处理，反变换之后得到面波压制后的地震信号(Surface wave seismic signals obtained after the seismic signal processing to suppress them after removing the surface wave interference wavelet, wavelet transform thresholding, anti transformed)

程序名称:gm21.m GM(2,1)模型 程序功能:利用GM(2,1)模型进行预测。 程序编写:mongvi@126.com 开发指导:刘思峰教授 程序发布:南京航空航天大学灰色系统研究所(Program name: GM gm21.m (2,1) model Program function: using GM (2,1) model to predict. Programming: mongvi@126.com Development direction: Professor Liu Sifeng)

是小学期课程设计的题目，小波包分析提取振动信号中的特征频率，音频信号通过LM386放大。( Is the topic of the elementary school stage curriculum design, Wavelet packet analysis to extract vibration signal characteristic frequency, LM386 audio signal amplification.)

风云3号卫星MERSI近红外波段分成4类的MATLAB程序(FY-3 satellite MERSI near-infrared bands MATLAB program divided into four categories)

CDMA 2000 IMT Multi‑ Carrier (IMT‑ MC)

CSMA-CAalgotithm算法matlAB的实现！(The implementation of the CSMA-CAalgotithm algorithm matlAB)

利用matlab判斷影像矩陣，利用近紅外光圖使海洋與陸地區分並找出海岸線(Judgment using matlab image matrix, using near-infrared light diagram of the marine and terrestrial distinguish and identify the coastline)