MATLABppt

用MATLAB中的simulink对DQPSK进行仿真(Using MATLAB in the simulink simulation of the DQPSK)

说明：  UWB信道仿真程序，基于IEEE802.15.3a，里面有详细地说明。(UWB channel simulation program, based on the IEEE802.15.3a, which has explained in detail.)

这是SSR算法与直方图均衡化相结合的matlab代码，可以增强模糊且较暗的图像。 (this is SSR algorithm and HE。。。)

说明：  Multirate滤波器设计。模拟带通信号频率范围1KHz—1.1KHz，设计一个采样频率8KHz数字频谱分析系统，要求频率分辨率0.1Hz。(Multirate filter design. Analog bandpass signal frequency range 1KHz-1.1KHz, design a sampling frequency of 8KHz digital spectrum analysis system, required frequency resolution of 0.1Hz.)

基于移相全桥控制双向DCDC变换器matlab仿真原理图，可以在此基础上加以改进(Based on the full-bridge phase-shift control bidirectional DCDC converter matlab simulation schematic, can be improved on this basis)

均匀分布的随机数，并依此产生高斯分布随机数，12和法和Box-Muller法产生高斯分布(uniform distribution of random numbers, and so have a Gaussian distribution of random numbers, 12 and the law and Box-Muller method, Gaussian distribution)

说明：  异步电机的精确控制和速度辨识是交流传动系统中重要问题。在该仿真系统中，电机转速采用易于检测的电机定子电压和电流得到转速MRAS辨识算法来估算。由于速度辨识算法中电压模型的纯积分环节会引起的误差积累和漂移问题，采用改进积分型转子磁链估算模型来解决。(The precise control and the speed identification of AC motor are the very important issues on AC drive system.In this system, induction motor is controlled by the direct torque control, stator flux is estimated by u-n model observer that is effective in the full range of speed, motor speed is estimated by MRAS speed identification algorithm that is depended on the voltage and the current of motor stator easily detected. The modified integral rotor flux estimation model is used to solve the problem that the normal model can be affected by the error accumulation and drift of integral calculation in the voltage model of conventional speed identification algorithm. )

说明：  计算Daubechies小波尺度函数滤波器系数(Function to compute the Daubechies scaling coefficients)

quadrature amplitude modulation

matlab绘图命令，新手必读，上路有用，大家共同交流，共同提高(matlab drawing commands, the novice must-read, on the road useful, common communication, co-improved)