滤波反投影法图像重建

matlab程序，用pca分解重构对原始信号进行噪声抑制，利用bic准则进行主分量阶数选择(matlab program, using pca decomposition and reconstruction of the original signal noise suppression, the use of principal component bic guidelines Order Selection)

fft算法matlab实现，可直接运行，对比给定波形和经过fft后的波形效果(fft algorithm matlab realize, can be directly run, compared to a given waveform and waveform effects after fft)

是国外的成品模型，供做算法研究人员参考，随机调制信号下的模拟ppm，解耦，恢复原信号，LDPC码的完整的编译码，matlab程序运行时导入数据文件作为输入参数。

做视觉测量的上位机代码,有详细的注释，空间目标识别，采用PM算法，matlab编写的元胞自动机，合成孔径雷达（SAR)目标成像仿真，多元数据分析的主分量分析投影。

分析了该信号的时域、频域、倒谱，循环谱等,计算两个矩阵之间的欧氏距离，采用累计贡献率的方法，中介真值程度度量，基于中介真值程度度量的图像分割利用最小二乘算法实现对三维平面的拟合，一种基于多文档得图像合并技术。

Matlab中所有的内部函数，学习后能够全览matlab中的函数。(Matlab, all internal functions, learning later to be fully in relation to the function of matlab.)

说明：  遗传算法是计算数学中用于解决最佳化的搜索算法，是进化算法的一种。进化算法最初是借鉴了进化生物学中的一些现象而发展起来的，这些现象包括遗传、突变、自然选择以及杂交等。遗传算法通常实现方式为一种计算机模拟。对于一个最优化问题，一定数量的候选解（称为个体）的抽象表示（称为染色体）的种群向更好的解进化。传统上，解用二进制表示（即0和1的串），但也可以用其他表示方法。进化从完全随机个体的种群开始，之后一代一代发生。在每一代中，整个种群的适应度被评价，从当前种群中随机地选择多个个体（基于它们的适应度），通过自然选择和突变产生新的生命种群，该种群在算法的下一次迭代中成为当前种群。(Genetic algorithm (GA) is a search algorithm used to solve optimization in computational mathematics. It is one of evolutionary algorithms. Evolutionary algorithms were originally developed by borrowing phenomena in evolutionary biology, such as heredity, mutation, natural selection and hybridization. Genetic algorithms are usually implemented as a computer simulation. For an optimization problem, an abstract representation of a certain number of candidate solutions (called individuals) (called chromosomes) evolves towards a better solution. Traditionally, solutions are represented in binary (that is, strings of zeros and ones), but other representations are possible. Evolution begins with a population of completely random individuals, and it happens from generation to generation.)

QPSK信号的盲解调，假定接收端已经实现载波同步，位同步(Blind demodulation of QPSK signals, assuming the receiver has achieved synchronization, bit synchronization)

MATLAB编程源码，结果为画出多个正六边形。(MATLAB programming source code, the result is to draw more than regular hexagon.)

说明：  改进型K分布还杂波程序，非常棒的MATLAB源码呵呵，谁用谁知道！(K distribution clutter also improved procedures for the MATLAB source Oh great, who is with who knows!)