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说明：  跳频扩谱通信matlab代码，实现跳频通信系统仿真。(Matlab code for frequency hopping spread spectrum communications, to achieve frequency hopping communication system simulation.)

TeagerKaiser Energy operator method has been explained with help of Matlab 2007a version. This method can be used in case of speech and voice processing as well as any kind of signal processing activities. This has been explained with multiple input signals. A noise has been added in order to explain the method s efficiency at last.

利用小波的对图像的分解和重构，然后对重构图像消噪，并比较消噪前后的图像。(the use of wavelet image decomposition and reconstruction, and then reconstructed image denoising, and compare the before and after denoising images.)

由设计要求可知，wp<=0.2π，允许误差幅度小于1dB，ws>=0.3π内衰减应大于15dB。为了验证数字滤波器的实际滤波功能，设计程序时，把输入序列定为验证函数x（t）=4sin（100πt）以及x（t）=4sin（200πt）和x（t）=4sin（400πt）。又因为Ts=1.25ms，T=80ms，故采样点为64，即N=64，所以当M=6，可以同时调试并验证程序的滤波功能。(Seen by the design requirements, wp < = 0.2π, allow a margin of error of less than 1dB, ws> = 0.3π within attenuation greater than 15dB. In order to verify the actual filtering function of the digital filter design program, the input sequence as validation function x (t) = 4sin (100πt) and x (t) = 4sin (200πt) and x (t) = 4sin (400πt) . And because Ts = 1.25ms, T = 80ms, so the sampling points is 64, that is N = 64, so when M = 6, can debug and validate filtering program.)

这个例子示出了充放电时的超级电容器的模式。该电路示出了与电池超级电容器的一个简单的杂交。超级电容器被连接到降压/升压转换器和电池连接到升压转换器。电池的功率由一个速率限制器块，因此瞬态功率由超级电容器供给到DC总线限制。(This example shows the supercapacitor model during charge and discharge. The circuit illustrates a simple hybridization of a supercapacitor with a battery. The supercapacitor is connected to a Buck/Boost converter and the battery is connected to a Boost converter. Power of the battery is limited by a rate limiter block, therefore the transient power is supplied to the DC bus by the supercapacitor.)

OSTBC 准正交空时分组码多天线系统，QPSK，QAM调制的误码率比较

MIMO-OFDM系统仿真MIMO-OFDM系统仿真MIMO-OFDM系统仿真MIMO-OFDM系统仿真MIMO-OFDM系统仿真(MIMO-OFDM system simulation MIMO-OFDM system simulation MIMO-OFDM system simulation MIMO-OFDM system simulation MIMO-OFDM system simulation)

可以根据不同的设计指标参数，快速、有效、自动地完成低通、高通、带通、带阻等各种滤波器的设计和仿真计算，直观展示相应滤波器的幅频、相频特性。(According to different parameters design specifications, fast and effective, automatically complete low pass, high pass, band pass, band stop filter design and various simulation, visual display appropriate filter frequency, phase frequency characteristics.)

incremental slow feature analysis version 2

用c语言进行地震波模拟，地震波被看做弹性波，在不均匀介质中传播的信息。(Seismic wave simulation using c language, seismic waves are seen as an elastic wave propagation in inhomogeneous information medium.)