e

说明：  these codes are about three phase

说明：  对移动通信中的多径多普勒频移进行详细的仿真,对学习这个的朋友有极大的帮助(The detailed simulation of multi-path Doppler frequency shift in mobile communication will be of great help to the friends who study this problem.)

dsp实现无限冲激响应滤波器(IIR)算法，低通巴特沃斯滤波器在其通带边缘1kHz 处的增益为-3dB，12kHz 处的阻带衰减为30dB，采样频率25kHz(dsp Infinite Impulse Response Filter (IIR) algorithm, low-pass Butterworth filter gain in its passband edge at 1kHz-3dB 12kHz at the stop-band attenuation of 30dB, the sampling frequency of 25kHz)

说明：  可以对模糊的图像进行去噪处理，使得图像更加清晰(It can denoise the blurred image and make the image clearer)

能完成基本二维条形码的识别，包含gui界面编程，可对较为清晰的拍摄二维条形码图像进行识别(To complete the basic two-dimensional bar code recognition, including the gui interface can be programmed to take on a more clear two-dimensional bar code image to identify)

常用数字调制技术，包括BPSK，OQPSK，QPSK，MSK，GMSK，QAM等的调制解调仿真程序，并且包含AWGN及衰落信道下的仿真，对学习数字调制技术有较大帮助(Commonly used digital modulation techniques, including BPSK, OQPSK, QPSK, MSK, GMSK, QAM modulation and demodulation simulation program such and includes AWGN and fading channel simulation, the study of digital modulation techniques of great help)

卡尔曼滤波的标准工具包 包含各种卡尔曼滤波器(standard toolbox for kalman Filters)

说明：  灰度级伪彩色编码，将灰度分为4级添加不同的颜色(Gray level pseudo-color coding)

信号处理的控件，非常有用，大家可以仔细学习一下，对以后的应用有很多好处(Signal processing control, very useful, we can carefully learn about the application of the future has many advantages)

comsol计算线声源声场分布,对于初学者非常重要(comsol calculates the pressure field of the line source)