HMM_mat

used to write data to excel

正弦脉宽调制， 程序给定调制波频率，载波频率，负载功率因数，输出相电压波形，相电流波形。(Sine pwm,the frequecy of modulated wave and carried wave is given in program, also the factor of load.The output is wave of phase voltage and phase current.)

说明：  QPSK详细调制解调的源码，包括整个流程．(QPSK modulation and demodulation of the source in detail, including the entire process.)

finding aprox. function by the method of least squares for y = a + blnx

平面波与涡旋波的干涉产干涉条纹，条纹出现位错。(Plane wave and vortex waves produce interference fringes, stripes appear dislocation.)

Generate 3D triangular hexagonal meshes

主要用于计算目标前向、侧向、后向散射特征，同时完成RCS极坐标图的绘制(Used to calculate the target forward, sideways, backward scattering, and complete the drawing of the polar diagram RCS)

说明：  使用matlab二元傅里叶变换全息图，字符“E”的MATLAB模拟计算全息图，字符“E”的MATLAB模拟计算全息图的再现图像(Character "E" in the MATLAB simulation of the reproduced image of the hologram)

matlab6.5参考手册，是英文版的。里面含有simulink的参考手册。(matlab6.5 Reference Manual is in English. Simulink which contains a reference manual.)

使用BP算法实现语音识别及预测的功能，调试可用(BP algorithm to achieve the function of speech recognition and forecast)