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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. )

实现经典谱估计的matlab程序（包括BT法，周期图法，分段周期图法等等）(Achieve classical spectrum estimation matlab program (including BT France, periodogram, segmented periodogram method, etc.))

设计一个数字FIR低通滤波器，其技术指标如下： Wp=0.2pi Rp=0.25Db Ws=0.3pi As=50db 试写出MATLAB设计的源程序。(Design a digital FIR low-pass filter, the technical indicators are as follows: Wp = 0.2pi Rp = 0.25Db Ws = 0.3pi As = 50db test designed MATLAB source code to write.)

shortest path dijkstra algorithm

研究生数值分析课程考试题型的matlab源程序(Graduate numerical analysis course exam questions matlab source)

说明：  高等数学实验（胡良剑） 数学实验工具箱 (Higher mathematics experiment (Liang-sword) Math lab kit)

基于GVF和VFC主动轮廓模型代码，代码采用matlab编写，另外有C语言编程提供更快运行速度(VFC based GVF active contour model and code, code written using matlab, another C programming language to provide faster speed)

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waveletimfusion，图像融合的小波matlab代码，含有结果客观分析(waveletimfusion, Wavelet image fusion Matlab code, contain an objective analysis of results)

The mathematical basis is polynomial interpolation piecewise implemented