jiechugangdu

利用常用的四阶龙格-库塔公式求初值再分别利用米尔恩公式和改进的亚当斯方法及常用的四阶龙格-库塔公式求解其余的数值解，并计算它们与精确解的误差(By use of Runge- Kutta formula and then find the initial value, respectively, and improved the formula by Milne Adams methods and commonly used Runge- Kutta formula to solve the rest of the numerical solution, and calculate their error with the exact solution)

RBF神经网络样例,供大家学习分享一下，希望对大家学习神经网络有帮助(RBF neural network sample, for everyone to learn to share, we want to help learning neural network)

generate logistic map data (RBFNN)

Modulation of signal like amplitude modulation

matlab版本的标准互信息函数，用于聚类指标的计算，可直接使用(normalized mutual information function for clusering performance evaluation (MATLAB version))

能够实现对棋盘格标定模版的焦点提取，简单实用

直接序列扩频系统（DS，Direct Sequence）又称为直接序列调制系统或伪噪声系统（PN 系统），简称为直扩系统，是目前应用较为广泛的一种扩展频谱系统。要传送的信息经伪随机序列编码后对载波进行调制。在发信端越冬用扩频序列去扩展信号的频谱，在收信端，用相同的扩频友序列进行解扩，将展宽的频谱扩展信号还原成原始信号。因为伪随机序列的速率远大于要传送信息的速率，所以受调信号的频谱宽度将远大于要传送信息的频谱宽度，帮称之为扩频(Direct sequence spread spectrum (DS, Direct Sequence) modulation system, also known as direct sequence or pseudo-noise system (PN system), referred to as direct expansion systems, is currently the more widely used as a spread spectrum system. To send the information encoded by the pseudo-random sequence of carrier modulation. End of winter in the letter to extend the signal with the spreading sequence of spectrum, in the end prepared to receive and use the same sequence spread spectrum despreading friends, broadening the spectrum to restore the original signal expansion signals. Because the rate of pseudo-random sequence is much larger than the rate of information to be sent, so the frequency spectrum by adjusting the width of the spectrum is much larger than the width of the information to be sent to help is called spread spectrum)

车牌识别，能够定位，字符分割，字符匹配，效果还是可以的(Automatic Vehicle Identification)

语音信号处理来的预加重随后进行FFT变换，同时呈现结果图。(Speech signal processing preemphasis subsequent FFT, simultaneous presentation of the results in Fig.)

一些常见的matlab源代码，参加建模的人很值得一看(Common matlab source code, it is worth a visit to participate in modeling)