QPSK-SimulationGray-CodingRayleigh-Fading

说明：  求两个信号之间的相干性，输入是两个不同的信号，如eeg和semg，输出一一个相干性的值的矩阵，附带傅里叶变换和semg和eeg数据集(To find the coherence between two signals, the input is two different signals, such as EEG and sEMG, and the output is a matrix of coherence values,with Fourier transform and sEMG and EEG data set)

一种Ipod Shuffle Cable检测程序(One kind of Ipod Shuffle Cable testing procedures)

Abstract—In this paper, we study the joint estimation of inphase and quadrature-phase (I/Q) imbalance, carrier frequency offset (CFO), and channel response for multiple-input multipleoutput (MIMO) orthogonal frequency division multiplexing (OFDM) systems using training sequences. A new concept called channel residual energy (CRE) is introduced. We show that by minimizing the CRE, we can jointly estimate the I/Q imbalance and CFO without knowing the channel response. The proposed method needs only one OFDM block for training and the training symbols can be arbitrary. Moreover when the training block consists of two repeated sequences, a low complexity two-step approach is proposed to solve the joint estimation problem. Simulation results show that the mean-squared error (MSE) of the proposed method is close to the Cramer-Rao bound (CRB). Index Terms—MIMO OFDM, CFO, I/Q imbalance, channel estimation.

说明：  CDMA技术的原理是基于扩频技术，即将需传送的具有一定信号带宽信息数据，用一个带宽远大于信号带宽的高速伪随机码进行调制，使原数据信号的带宽被扩展，再经载波调制并发送出去。CDMA系统仿真，初学者(CDMA system simulation)

DRM(Digital Radio Mondiale)系统采用OFDM调制方式， 引入了先进的信源信道编码和调制技术，使得AM波段的音频广播质量大大提高，在保持现有10kHz带宽时接近了FM广播的质量[5](DRM (Digital Radio Mondiale) system uses OFDM modulation, the introduction of advanced source-channel coding and modulation techniques, making AM-band audio broadcast quality greatly improved, while maintaining the existing 10kHz bandwidth close to the quality of FM broadcasting [5])

说明：  DFE信道均衡算法及学习曲线绘制程序。程序为matlab代码。(DFE channel equalization algorithm and the learning curve drawing program. Procedures for the matlab code.)

基于导频的OFDM信道估计的硕士论文一篇，研究信道估计的各种方法(OFDM channel estimation based on pilot master' s thesis a study of channel estimation the various methods)

一种基于遗传算法的OFDMA系统的跨层资源分配(Cross-layer resource a genetic algorithm-based allocation of OFDMA system)

help you to learn use VB cominacate to outher maine

源信号数目的估计在阵列信号处理中有很广的研究了，这个源程序是基于新一代通信环境下的源信号数目估计，如mimo——ofdm(detection the number of source signals for MIMO_OFDM)