multi-factor

FFTW 64位FFTW算法库，MATLAB 就是调用这个库(FFTW 64BIT FFT)

双线形变换法设计滤波器，需帐号就可自由下载此源码(Bilinear transform design filter, take account of this source can be downloaded free)

灰色系统预测模型，能够通过少量数据预测将来变化趋势。(Grey system prediction model can predict the future by a small amount of data trends.)

the matlab program to simulate NSCT algorithm

说明：  5、绘制散点图。 对发射和接收信号利用scatterplot函数可显示信号星座图的样子及噪声对信号造成的失真程度。在该图中，横轴代表了信号的同相分量而纵轴代表了正交分量。下面的代码还利用了 对接收信号利用modem.deqammod对象的demodulate方法进行解调。解调结果为包含0到15之间整数的列向量。 (5, draw a scatter plot. The transmitted and received signals can be displayed using a function of the degree of distortion scatterplot like and noise signals caused by the signal constellation of FIG. In this figure, the horizontal axis represents the in-phase component signal and the vertical axis represents the quadrature component. The following code is also used to demodulate the received signal using the method of demodulating modem.deqammod object. Demodulation result is an integer from 0 to 15 comprising a column vector.)

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calculate mel frequency of a signal

说明：  用于计算目标回波信号，散射中心提取，可应用于各种目标(It can be used to calculate target echo signal and extract scattering center. It can be applied to various targets.)

正弦干扰陷波LMS算法，一个主程序和三个子程序(Sinusoidal Interference Notch LMS algorithm, a main program and three subroutines)

gives the initial and final velocities of a trajectory connecting R0 to Rf over a transfer time of dT. This method uses universal variables, from Vallado.