DCT2DPCA

说明：  FQPSK与简单重复码的迭代译码,简单重复码做为外码(serial concatenation of repetition code and FQPSK ，in which repetition code is the out code)

说明：  最速下降法是迭代法的一种,可以用于求解最小二乘问题(线性和非线性都可以)。在求解机器学习算法的模型参数，即无约束优化问题时，梯度下降（Gradient Descent）是最常采用的方法之一，另一种常用的方法是最小二乘法。在求解损失函数的最小值时，可以通过梯度下降法来一步步的迭代求解，得到最小化的损失函数和模型参数值。反过来，如果我们需要求解损失函数的最大值，这时就需要用梯度上升法来迭代了。在机器学习中，基于基本的梯度下降法发展了两种梯度下降方法，分别为随机梯度下降法和批量梯度下降法。(The steepest descent method is a kind of iterative method, which can be used to solve the least squares problem (both linear and nonlinear). In solving the model parameters of machine learning algorithm, that is, unconstrained optimization, gradient descent is one of the most commonly used methods, and the other is the least square method. When solving the minimum value of loss function, the gradient descent method can be used step by step to get the minimum value of loss function and model parameters. Conversely, if we need to solve the maximum value of the loss function, then we need to use the gradient rise method to iterate. In machine learning, two kinds of ladders are developed based on the basic gradient descent method)

在程序中用一般的MUSIC方法估计了信号的频谱，从两图中可看出在信号各频率处，频谱的峰值较大，故能明显的与噪声相区别，可在一定程度上避免在信号幅度较小时信号被噪声淹没的情况。(MUSIC method general procedures used to estimate the spectrum of the signal, it can be seen from the two graphs in the signal at each frequency of the spectrum peak larger, and it could be significantly distinguished from noise in the signal can be avoided to some extent a lesser extent, the signal is noise submerged.)

分形提供了一种描述工程中不规则复杂现象中的秩序和结构的新方法。分形算法源程序，附带说明，已经过调试(Fractal description of the project provides a complex phenomenon in irregular order and structure of the new method. Fractal algorithm source code, a side note, has been commissioning)

基于小波多尺度分析的彩色图像检索方法的研究(Color image retri method based on wavelet multiscale analysis)

多波束系统中高分辨算法－－MUSIC算法的MATLAB实现的源程序，此程序运行后能直观的看出该算法的高分辨能力。()

this is all about Echo Canceller Workbook targeting a dsPIC

实现超宽带信号在自由空间，室内的传播过程，该过程通过FDTD技术来实现。(Through FDTD technology,we simulate the process that UWB signal transmits in freespace)

掌纹识别预处理特征提取和算法的研究，网上借鉴的(palmprint recognition。to design 2d gabor filter and apply it to image....we get a filter characteristics closely resembling to the gabor filters. the gabor filter is basically a gaussian )

用matlab分析瑞利信道、莱斯信道以及高斯信道的性能优劣。(Using matlab to analyze the performance merits of the Rayleigh channel, Rice channel and channel Gaussian.)