digital-modulation-and-demodulation

关于无线传感网络二维的TDOA定位算法，内容详细(TDOA, TOA and AOA localization algorithms for wireless sensor networks are detailed.)

针对数字卫星常用的 7 种通信信号调制方式(QPSK、8PSK、16QAM、32QAM、64QAM、16APSK、32APSK)，对零中心归一化瞬时幅度谱密度最大值、四次方谱、幅度、高阶累积量四种特征参数进行了分析，提出了一种联合特征参数的信号调制识别方法．(Aiming at seven communication signal modulation modes commonly used in digital satellite (QPSK, 8PSK, 16QAM, 32QAM, 64QAM, 16APSK and 32APSK), four characteristic parameters of zero-center normalized instantaneous amplitude spectral density, quadratic spectrum, amplitude and high-order cumulant are analyzed, and a signal modulation recognition method of joint characteristic parameters is proposed. Method.)

说明：  对无线通信瑞利衰减信道进行建模的仿真代码，共有三种模型(Rayleigh channel simulation code)

principle_of_communication……matlab(principle_of_communication.matla)

智能天线波束赋形算法研究,对天线中的波束形成算法分析的非常深入。(Smart antenna beamforming algorithm, in the antenna beam to form a very in-depth analysis of the algorithm.)

将压缩感知应用于基于训练序列的信道估计中，代码展示了压缩和估计过程。(Will be used in compressed sensing training sequence based channel estimation, the code shows the compression and estimation process.)

Design of Low Complexity OFDM Schemes and Position Location Algorithm for ... By Syed Faisal Ali Shah PrecodING OFDM System THESIS Go

说明：  研究d2d通信加中继节点来优化蜂窝小区边缘用户通信，并通过MATLAB仿真(The D2D communication and relay nodes are studied to optimize the edge user communication of cellular cell, and the simulation is carried out by MATLAB.)

主要用于各种实际中的定位运算，如TDOA等，可以在很短的时间内进行精确定位(It used in positioning calculation of the actual environment,for example ,TDOA.It can know the exact positioning in a short time.)

用SC译码算法进行极化码的解码，经典方法(Decoding of polarization codes with SC decoding algorithm)