pls

This is a well designed GUI in matlab which will help in solving differential equation and view its variation graphically.

说明：  《数学建模》课程“非线性规划”部分课件和相关源代码(《Mathematical Modeling》course 《Nonlinear Programming》section of courseware and related source code)

多载波调制(Multicarrier Modulation)采用了多个载波信号。它把数据流分解为若干个子数据流，从而使子数据流具有低得多的传输比特速率，利用这些数据分别去调制若干个载波。所以，在多载波调制信道中，数据传输速率相对较低，码元周期加长，只要时延扩展与码元周期相比小于一定的比值，就不会造成码间干扰。因而多载波调制对于信道的时间弥散性不敏感。多载波调制可以通过多种技术途径来实现，如多音实现(Multitone Realization)、正交多载波调制(OFDM)、MC-CDMA和编码MCM(Coded MCM)。其中，OFDM可以抵抗多径干扰，是当前研究的一个热点。(Multi carrier modulation (Multicarrier Modulation) uses multiple carrier signal. It decomposes a data stream into a plurality of sub data stream, so that the sub data stream transmission bit rate is much lower, respectively to a plurality of carrier modulation using these data. )

用svpwm逆变方式来产生交流从而实现异步交流电机调速(With svpwm way to generate AC inverter to achieve asynchronous AC motor speed)

三种分集合并的性能比较，源码很详细，非常适合初学者使用(Three kinds of diversity merger performance comparison, the source code is very detailed, very suitable for beginners to use)

2008国际大学生数学建模一等奖论文，数学建模实例与编程教程，提供建模的方法(First Prize Paper on Mathematical Modeling for International College Students 2008, Mathematical Modeling Example and Programming Course, Providing Modeling Method)

说明：  L型，超声传感，局放阵列，L型增广矩阵束算法二维(L-type, ultrasonic sensor, PD array, L-type augmented matrix beam algorithm, 2D)

compute active contour model

Source to Distortion Ratio

image sccaling. sccaling the image rd blue and green. its not good dont download