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matlab for for f5 seganography

matlab程序，FFT变换matlab程序，有助于初学者学习(matlab program，it will help u to study)

OFDM正交频分复用的基带系统，采用QPSK数字调制，统计系统的误码率(baseband of OFDM ，modulation by QPSK)

Permanent magnet synchronous motor parameters, structure, performance design process.

说明：  双馈感应电机的矢量控制仿真模型，用的是定子磁链定向(The vector control simulation model of doubly fed induction motor uses stator flux orientation)

重叠和不重叠分段计算的功率谱比较,算法通用性强。(Overlapping and non-overlapping sub-calculated power spectrum comparison)

我做了这样一个电子菜单，除普通菜单功能外，增加了控制饮食的功能。因此称作“健康电子菜单”。 (I had such an electronic menu, in addition to ordinary menu functions, an increase of the function of diet. So called " health e-menu." )

各种应用场合下方便的经行数字测温精度高使用方便。(Variety of applications by the line under the convenient and easy to use digital temperature measurement accuracy.)

说明：  利用害明滤波器对白噪声信号进行加权,提高信噪比(Filter with the use of harm-ming weighted noise signal to improve signal to noise ratio)

Mysmo.mdl 永磁同步电机的主程序，可以实现有速度传感器启动运行，和无速度传感器运行。 SMOmodel.m 改进的滑模观测器模型，实现永磁同步电机反电动势的估算。 PFCDCM0hm5 用的是0.5hm的电感，实现220V交流电变换成400V的直流电，电流断续。 由于是仿真，如果要硬件实现的话，除了需要电压采样外，还需要一个输入电压过零检测 PFCCM320percent98k50 用的是5hm的电感，实现220V交流电变换成320V的直流电，电流连续。功率因数可以达到0.98，用的开关频率为50K PFCCM400percent97k50.mdl 用的是5hm的电感，实现220V交流电变换成400V的直流电，电流连续。功率因数可以达到0.97，用的开关频率为50K (Permanent magnet synchronous motor Mysmo.mdl main program, you can achieve the speed sensor up and running, and speed sensors run. SMOmodel.m improved sliding mode observer model permanent magnet synchronous motor back-EMF estimates. PFCDCM0hm5 with is 0.5hm inductor to achieve 220V AC transform into a 400V DC current is interrupted. As the simulation, hardware implementation, then, in addition to the voltage sampling an input voltage over zero detection PFCCM320percent98k50 the is 5hm inductance to achieve transformation 220V AC 320V DC continuous current. The power factor can reach 0.98, the switching frequency for 50K PFCCM400percent97k50.mdl with is 5hm inductance 220V AC transform 400V DC continuous current. The power factor can reach 0.97, with the switching frequency is 50K)