OFDM-Comm-System

说明：  基于Harris的掌纹图像特征提取的程序，非常的完整可靠(Harris based on palmprint image feature extraction procedures, very full and reliable)

MIMO雷达估计均方误差计算，自己写的，已调试，可直接运行(MIMO Radar EMSE)

运用matlab编写的密码登录窗口 亲测有效(Password login window written by Matlab is valid)

Speech Recognition with TDNN(Time delay neural network)

Program for Space-Time-Block-Code BPSK modulation performance as a function of SNR and BER. (MATLAB)

在MIMO系统下，空时分组码在不同天线下的性能（基于接受信号合并）(STBC performance under different antenna)

phase shift keying report

MIMO雷达模型下一种子空间谱估计方法，采用过估计的方法，以避免信源数估计的问题，直接对数据协方差矩阵进行变换，从而构造了信号子空间投影矩阵和噪声子空间投影矩阵，不需要像经典的MUSIC一样对其进行特征分解，完全避开了在一般非理想情况下MUSIC算法必须面对的识别小特征值与大特征值的麻烦，降低了复杂度，而且该方法不受快拍数的影响，在相干源情况下也能准确的估计目标的入射角，不会出现伪峰。(A subspace based DOA (Direction-Of-Arrival) estimation method for MIMO (Multiple-Input Multiple-Output) radar is studied in this paper. By transforming the data covariance matrix, we can construct the projection matrix of signal subspace and noise subspace. The computation complexity of the algorithm is reduced as it does not need to perform eigendecomposition. By using the over estimated theory, this algorithm avoid estimating the number of signal sources and can keep a good estimate performance in the case of lower SNR (Signal-to-Noise Ratios) and multi-target. )

说明：  在栅格图上手动选取多个障碍范围并用A*算法规划最优路径(Manually select multiple obstacle ranges on the grid and use a * algorithm to plan the optimal path)

本代码是用四种不同的算法来实现多项式求和。(This code is used four different algorithms to achieve polynomial sum.)