VADfunctions

这是周建兴的《matlab从入门到精通》第6章的所有源代码，都可以运行的出来，和课本上的一样，(This is Zhoujian Xing' s " matlab from entry to the proficient," Chapter 6, all the source code, you can run out, and textbooks on the same)

matlab est le meuilleur programme pour traiter des informations

this m.file produces channel coefficient with some error, in which the estimation error follows a random variable with zero mean and variance of MSE. lat is the latitude of BS places at different cells which is used to determine the number of BSs in the networks

说明：  pwm整流电路，即将直流电源逆变为交流电(Rectifying circuit, will be the dc power supply inverter for alternating current)

kalman滤波全程序的范例，可以进行一维和二维计算(kalman filter example of the whole procedure can be carried out one-dimensional and two-dimensional calculation)

Haralick texture descriptor

说明：  为了提高认知无线电中感知用户对授权用户(主用户) 的检测概率,提出一种新的基于循环 谱统计量的主用户信号检测算法. 该算法利用循环谱离散频域平滑方法,对信号的循环谱在循环频 率处建立合理的检测统计量,然后求解得到对应不同虚警概率的判决门限,以使感知用户能检测信 噪比更低的授权用户信号.(To increase the detection probability of sensing users for licenced users (primary signals) in the cognitive radio , it put s forward a new primary users signal method based on cyclic spect rum statis2 tics. By using discrete f requency smoothing of cyclic spect rum , this algorithm establishes the reason2 able detection statistics on the cyclic f requency of signal cyclic spect rum , then solves and obtains the decision threshold correspond to different false alarm probability , as a result , making the sensing users can detect licenced users signal under lower signal in noise ratio (SNR) .)

现代电力电子技术，很好的一本书，值得一看(Modern power electronics technology, a good book, worth a visit)

序列进行离散傅里叶级数变换，画出相位图，频谱图。改变序列长度，然后重复上述过程(Sequence of discrete Fourier series transform, draw the phase diagram, spectrogram. Change the length of the sequence, and then repeat the process)

用于SWS-2型地震仪采集的地震记录中滤除面波(Used for SWS-type 2 seismograph acquisition of the earthquake records of surface wave filter)