Qiland

说明：  本程序采用平面梁单元计算两铰抛物线拱的自由振动特性，希望对学习有限元及程序设计有帮助。(The program uses two hinged planar beam element calculation of the free vibration characteristics of the parabolic arch, the finite element and want to learn programming help.)

A few examples of designing and implementing fir filters with Matlab-filtering a signal taken from the mic input of the soundcard and putting it on the headphones output chanel and removing noise from ECG.I m uploading this file just because I need to register to see another file and I haven t translated it in English but the code is understandable. If someone is interested e-mail me.

地球物理磁法，两个球体剖面磁异常Za向上延拓(Geophysics magnetic method, the two spheres profile magnetic anomalies Za upward continuation)

无线传感器网络协议仿真对比，死亡节点数随时间的变化对比，传输到基站的数据对比，网络能量消耗对比以及生命周期和稳定周期对比等(Wireless sensor network protocol simulation contrast, death nodes comparing the change with time, comparison of the data transmitted to the base station, network energy consumption and life cycle and the comparison and contrast stable period)

利用matlab，对图像进行小波分解，的到n维小波分解图像(Use of Matlab for image wavelet decomposition, to the n-dimensional wavelet decomposition of the image)

La señ al x(t) = 2 cos(11.200πt) + 2cos (10.000 πt) cos (1.000 πt) se suma a una señ al de ruido blanco (coloreado) gausiano de banda limitada con media igual a cero y con una densidad espectral de potencia de 1 µ w/Hz hasta una frecuencia de 15.000 Hz y cero a frecuencias mayores.

马尔科夫链macro chain macro chain macro chain macro chain macro chain macro chain macro chain macro chain macro chain macro chain macro chain (macro chain macro chain macro chain macro chain macro chain macro chain macro chain macro chain macro chain macro chain macro chain macro chain )

Kmedoid 是类似于Kmean的Clustering method。(Kmedoid is similar to Kmean the Clustering method.)

激光谐振腔（矩形腔，条形腔）的matlab模拟。输入相应数据即可得出仿真图案。(Laser resonator (rectangular cavity, the strip chamber) of the matlab simulation. Enter the appropriate data can be derived simulation design.)

在信号处理中，信号发射时，信号通过载波，调制，以电磁波的形式发射出来 在接收端，射频信号通过天线接收，超外差式等方式进行处理，变频到中频 然后通过数字技术对中频信号进行处理，此时的中频信号采样率很高，多达几十兆赫 而要解调出来的信号很小，此时就要经过滤波来得到我们需要的信号 如果直接设计滤波器，阶数会非常庞大，软件，硬件设备都承受不了 因此，一般常用的技术是进行下变频处理，其主要技术就是通过抽取滤波进行下变频 常用的滤波器就是CIC抽取, 希望可以帮助一些坛友解决基本的问题。 (In signal processing, signal emission, signal through the carrier, in the form of electromagnetic wave modulation, launched In the receiver, rf signals through the antenna, specialized superheterodyne type means such as processing, the frequency conversion to intermediate frequency Then through digital technology of intermediate frequency signal processing, at this time of intermediate frequency signal sampling rate is very high, as many as several decades MHZ But the signal demodulation out is very small, at this time would be passing filter to get what we need signal If design directly filter, order number be colossal, software, hardware equipment all suffer Therefore, the technology is usually used for down-transducer processing, its main technical is by extracting filtering down-transducer Commonly used filter is CIC extraction, the hope can help some friends solve basic problems of the altar.)