QPSK_sim

说明：  基于MATLAB的光学4f系统菲涅尔波带片的实现。信息光学课的作业，内含一个matlab的程序和程序运行结果。我自己写的程序，运行没有问题。(MATLAB-based optical 4f system, the realization of Fresnel zone plate. Information Optics homework assignment that includes a matlab program and run the results. I wrote it myself, run no problem.)

code for some problems in smart antenna for wireless commnications

说明：  跟踪法导引法的MATLAB，程序，希望大家多侃侃(matlab)

说明：  均匀线阵的方向图和均匀圆阵的二维方向图matlab程序(direction of arrival in ula and uca)

说明：  用c语言和matlab编写的、自动生成非结构化三角网格剖分的程序，用于地球物理勘探中的大地电磁、海洋可控源二维正演模拟。(Triangle.m is a MATLAB graphical user interface for creating 2D models and generating fi nite element triangulation grids. Grid generation is accomplished by an external call to the C-code Triangle.c, written by Jonathan Shewchuk at UC Berkeley.)

说明：   此函数用于研究Mallet算法及滤波器设计 此函数用于消噪处理 分解的高频系数采用db9较好,即它的消失矩较大 分解的有用信号小波高频系数基本趋于零 对于噪声信号高频分解系数很大，便于阈值消噪处理(this function for research Mallet filter algorithm design and function for Denoising decomposition of high-frequency coefficients Terminal better that it's vanishing moments larger decomposition of useful signal, high-frequency coefficients tends to zero for high-frequency signal noise decomposition coefficient great ease threshold Denoising)

文字识别文件夹中包含图片，matlab代码，可以运行(this file includs figures,codes of matlab. it can be run well.)

经典教材 数值计算matlab 源代码 (matlab code for numerical computation using matlab )

mainMIMO_OFDMA_2Tx_Convcode.m: 主程序，设置各种参数 gendatabits.m: 生成原始信息比特数据的程序 conv_encoder.m: 卷积码编码器 interleave.m: 交织器 mod_2Tx_STBC_DFUSC_Convcode.m：调制程序 gen_SUI_CorrCIR.m: 生成信道冲击响应的程序 get_perfectCE_2x2.m: 生成理想信道估计值的程序 chanSUI_corr_2x2.m: 发送信号通过SUI信道的程序 addAWGN_2x2.m: 添加高斯白噪声的程序 dem_DFUSC_2x2_STBC.m: 接收端解调主程序 ls_freq.m: 频域LS算法 ls_time_2x2.m: 时域LS算法 iterative_detection_decoding_2x2.m: 级联MAP算法主程序 map_decoding.m: 卷积码MAP译码程序 b2s_logp.m: 符号LLR转化为比特LLR">

Non-Symmetric Linear system, Sparse, Iterative Precondition, BiConjugate Gradient