qpskgray_dugufei

应用MATLAB语言处理数字信号与数字图像，适合初学者学习(Application of MATLAB language processing digital signals and digital images, suitable for beginners to learn)

说明：  针对煤矿井下巷道狭长，信号多径效应明显，接收信号强度（RSSI）测距算法受井下环境影响大，定位精度低的情况，提出了一种信标节点链式部署结构下的动态RSSI测距算法，该算法以信标节点间的距离和它们间测量到的RSSI值为参考，计算巷道内实际环境下的路径衰落指数，以提高RSSI测距算法对环境的适应性。(A dynamic RSSI location algorithm is proposed based on the beacon nodes chain deployment of tunnel Wireless Sensor Networks and the algorithm takes the distance and the corresponding RSSI between the adjacent beacon nodes into account to calculate the actual path loss parameter in the tunnel, thus improving the environmental adaptation of the location algorithm. )

matlab 程序 ica 独立成分分析主函数（其中没有编制子函数代码）(The main function matlab ica independent component analysis (not one of them to compile a function code) )

生成一个连通子图，适合图论学习，ACM竞赛以及网络学习(Generate a connected subgraph, graph theory is suitable to study, ACM contests, as well as e-learning)

船舶参数横摇,参数横摇的3自由度模型，包括垂荡和纵摇作用(Parametric Rolling of ships, the 3 degree of freedom model of parametric rolling, including heave and pitch function )

压缩感知中调幅信号的稀疏字典训练及稀疏表示，包含KSVD算法，OMP算法(Sparse dictionary training and sparse representation of amplitude modulation signal in compressed sensing, including KSVD algorithm, OMP algorithm)

Hey QPSK Simulation which showed the BER performance

粒子群优化算法，希望程序对大家学习智能算法有帮组(Particle swarm optimization, we want the program on smart learning algorithms to help group)

matlab 调外部用dll，实现混合编程(matlab )

在理想信道条件下、在高斯白噪声信道条件下和在先经过瑞利衰落信道再通过AWGN信道条件下的QPSK仿真（基带输入波形及其功率谱、QPSK调制信号及其功率谱、QPSK信号星座图、误码性能等）(In an ideal channel conditions, in white Gaussian noise channel conditions and earlier through Rayleigh fading channels through QPSK simulation AWGN channel conditions (baseband input waveform and its power spectrum, QPSK modulation signal and its power spectrum, QPSK signal constellation Figure, error performance, etc.))