STFT

说明：  在Matlab中计算一个张量和一个矩阵的mode-n（模n）乘积，相关运算原理请查找相关教材。(This matlab file can culculate the mode-n product of a tensor and a matrix.)

说明：  matlab可实现代码，学习用比较好。可以实现基于matlab的蚁群算法。(Matlab can achieve code, learning with better.Ant colony algorithm based on Matlab can be realized.)

main executing reference usage: usage_timeDifference.m Sample output: The time interval between earierTime [09-Sep-1900 09:09:18] and laterTime [31-Oct-2010 23:33:08] is 110 years, 79 days, 14 hours, 23 mins, 50.17 secs. The objective is to compute the time interval taking into account the leap days that are subsumed within the time interval. Note: The logic subsumes the time interval by yearEnd, monthEnd, dayEnd - timeEarlier (within that year) + time interval (excluding that 2 years) + timeLater - yearEnd, monthEnd, dayEnd (within that year) It differentiates the earlier time and later time, ie. timeDifference (earlierTime, laterTime) gives the same result as timeDifference (laterTime, earlierTime). leapDayHasPassed.m illustrates a possible approach to determine if a certain day of concern is already over at a given time. Caveat: does not include leap secs

绘制一条与控制多边形相切的三次均匀b样条曲线。(A degree-3 uniform b spline curve, it is tangent to its control polygon.)

说明：  用于生成带噪声的无人机飞行轨迹，同时通过中值和小波滤波方式进行噪声去除(It is used to generate the flight path of UAV with noise and remove the noise by means of median and wavelet filtering)

说明：  优化常用的共轭梯度法和投影梯度法求解目标函数最优解问题(Conjugate gradient optimization of common law and the projected gradient method problems the optimal solution objective function)

定子磁链直接转矩控制，波形平稳，转速稳定，控制效果良好(Direct torque control of stator flux linkage, the waveform is stable, stable speed, good control effect )

本程序为一种基于凸优化的OFDM信道估计算法，平滑SLO算法是求解稀疏线性方程组的一种迭代解法，本程序将其应用于OFDM信道估计，取得了较好的信号估计精度以及速度(This procedure is a convex optimization of OFDM-based channel estimation algorithm, smoothing algorithm SLO is sparse system of linear equations to solve an iterative method, the procedure will be applied to OFDM channel estimation, the signal to obtain a better estimation accuracy and speed)

自己写的计算色坐标的小程序，内附白炽灯的光谱数据，可供参考。(himself wrote the calculation of color coordinates of small programs, enclosing incandescent spectral data for reference.)

Hanning,hamming , blackman window在头部扫描图像中的应用和功能区别。(The use of hanning window, hamming window and blackman windou in brain scanning.)