matlab-codes

说明：  matlab的svm中使用的交叉验证函数（kfold），一般libsvm数据包中没有，需要自己加入(The svm matlab to use the cross-validation function (kfold), general packet libsvm no need to add yourself)

这是关于MATLAB入门学习的电子资料，分享给大家(This is the electronic information on entry MATLAB learning for everyone to share)

direck算法用matlab的M语言实现，该算法可以有效解决数值寻优，且实时性好，寻优收敛速度快，相比遗传算法，寻优更准确(direck algorithm matlab the M language, the algorithm can effectively solve numerical optimization, and real-time, optimizing the convergence speed, compared with the genetic algorithm optimization is more accurate)

实际系统地介绍了语言与MATLAB接口函数的编程方法。用实例详细地介绍了MATLAB中所供的数据类型在C-MEX函数中的编程方法。(Actual systematic introduction to the language with the MATLAB programming interface function. Described in detail with examples in MATLAB for the data types in C-MEX function of programming.)

对8PSK完美建模，其中通过改变码元速率和载波频率，再计算相应的环路滤波器的参数，即可实现多种QPSK模型的解调，且该模型可通过SYSTEM generator进行量化，从而生成ISE能直接使用的HDL代码。(Perfect modeling of 8PSK, wherein by changing the symbol rate and carrier frequency, and calculate the corresponding parameters of the loop filter, to achieve a variety of demodulated QPSK model, and the model can be quantified by SYSTEM generator, thereby generating ISE HDL code can be used directly.)

该程序是一个matlab与visual c++ 混合编程的例子，运用matlab的combuilder将matlab程序编译成dll，在C++里调用。(that the procedure was a Matlab c mixed with visual programming examples. using Matlab combuilder procedures will be compiled into Matlab dll, in the C calling.)

快速傅立叶变换（时域抽取基二fft）matlab程序源码(Fast Fourier Transform (time-domain samples di fft) matlab program source code)

说明：  浅层海洋环境由信源组成声源，海洋形成信道，和水听器阵列组成接收器。在这个传播模型中，信源，信道和接收信号这三者，通常能知二求一，具体应用诸如利用海洋环境参数和接收到的信号来定位声源，或者通过计算发射信号和接收信号之间的差异，反演海洋环境参数。 而在接收器方面，我们通过设置各向同性的水听器阵列。通过算法和处理器，我们便能量化模型，传统是处理器主要基于接收信号是高斯信号，而海洋中存在着大量的有色噪声。本课题的研究目的便是在前人的基础上，在海洋声层析成像的背景下，在信源与接收器阵列之间，引入信号的高阶统计量，对非高斯过程的水下信号源进行定位，并提高算法的性能和准确性。 利用非高斯过程的高阶累积量不恒为零的特点，滤去高斯有色噪声对信号的影响，其又包含了信号的相位信息，便可以极大的优化匹配场处理过程的性能和准确性。(After receiving signals based on high order cumulant matched field processor after matched field localization, the positioning effect will be more accurate, sidelobe suppression more effectively, and compared with other traditional matched field processor in low SNR environment, it can position more accurately.)

contourlet变换源代码,图象处理方面有广泛应用空间-MATLAB source code that implements the contourlet transform and its utility functions. See paper "The contourlet transform: an efficient directional multiresolution image representation" included in this zip file. (Contourlet transform source code, image processing has a broad application of space-MATLAB source code that implements the contourlet transform and its utility functions. See paper )

说明：  测试ukf（卡尔曼滤波器）的matlab源代码，避免ekf的截断误差，使线性化的结果更加准确。(Test ukf (Kalman filter) of the matlab source code, to avoid ekf the truncation error, so that the result of more accurate linearization.)