ky3

matlab studio excercise

Multi- Phase Shift Keying (Digital Communication)

Ac Voltage Controller- fixed ac to variable ac simple simulation

QPSK信号在MATLAB上的仿真代码，载波频率为10HZ，信息速率为1Baud，信号经过带宽为2HZ的系统。(QPSK signal in the simulation of MATLAB code, the carrier frequency to 10HZ, the information rate of 1Baud, signal bandwidth of the system 2HZ.)

标准大气子程序，通过插值获得h=0-21336m高度大气密度，声速，静压，粘性等数据。(The standard atmospheric subroutines, h = 0-21336m highly atmospheric density, sound velocity, static pressure, viscosity data obtained by interpolation.)

加入高斯白噪声的信道模拟,在学习的过程中，做这样的仿真是很有必要的(The simultor of AWGN)

matlab编程通过MUSIC算法定位声源方向（DOA），图形最高点对应横坐标即为声源方向(MUSIC algorithm matlab programming by positioning the sound source direction (DOA), the horizontal axis corresponds to the highest point of the graphic is the sound source direction)

语音识别预处理matlab实现，包括端点检测，预加重，加窗(Speech recognition pre matlab implementation, including endpoint detection, pre-emphasis, windowing)

dc to dc buck boost converter with variable frequency

利用最小二乘法拟合直线和曲线，绘制出对比图形；简单绘制多种三维图形的代码(least-square fiting and draw graph)