theantennainputimpedanceysolving

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：  基于EM算法，可以估计在混合高斯分布下的三个参数(EM expection)

基于Matlab的MPSK仿真分析，加入成型滤波过程，通过高斯信道后解调。(MPSK based on Matlab system simulation, adding the process of shaping filter)

计算变分问题的一种新的方法，收敛快速且数值稳定(Variational calculation of the problem, a new method of fast convergence and numerical stability)

在某初教机的线性模型基础上，建立了飞机的纵向和横向传递函数，分析了模型参数的不确定性，通过使用MATLAB中的NCD模块对飞行控制系统及PID控制器等参数进行优化，设计出了飞机的自动驾驶仪高度保持和航向保持模式。这种方法既避免了复杂的计算和编程，又使系统具有较好的稳定，陛、动态性能和鲁棒性，克服了飞机模型参数随着高度和速度的变化（即模型参数存在不确定性）而需要按照多个不同高度和速度的飞行区域设计一系列控制器的缺点(early in a plane of the linear model, based on the aircraft's vertical and horizontal transfer function, Analysis of the model parameters of uncertainty, MATLAB through the use of the NCD Blocks flight control system and PID controller parameters for optimization, design of the aircraft's automatic pilot systems, and maintain a high degree course-keeping mode. This method not only avoids the complex calculation and programming, the system has good stability, Her Majesty, dynamic performance and robustness. overcome the aircraft model parameters with the height and speed of change (that model parameters uncertainty exists) and the need to not more than with the height and speed of regional flight controller design a series of shortcomings)

利用快速傅立叶变换,在频域中实现脉冲压缩的matlab仿真程序()

脉冲雷达系统Simulink实现（Matlab6中可以用，Matlab7中没有试过）(pulsed radar system to achieve Simulink (Matlab can be used. Matlab7 not tried))

《MATLAB神经网络30个案例分析》中的第10个例子，案例10 离散Hopfield神经网络的分类——高校科研能力评价。希望对大家有一定的帮助！(The MATLAB neural network analysis of 30 cases of example, 10 cases of 10 discrete Hopfield neural network classification- the ability evaluation of scientific research in higher educational institutions. Hope to have certain help to everybody! )

400Hz，单相并联逆变器，重复，双环复合控制,simulink仿真模型(400Hz, single-phase inverters in parallel, repeat, bicyclic compound control)

GPS/INS位置组合输出校正Matlab仿真 s_GPS_INS_position_ demo.m 组合主文件 kalman_GPS_INS_position_ NFb.m 卡尔曼滤波程序 ode500.mat 飞机飞行轨迹与INS输出数据 将三个文件放到同一个文件夹中，运行主文件即可。 (GPS/INS Position Combination Output Correction Matlab Simulation S_GPS_INS_position_ demo.m Combines the master file Kalman_GPS_INS_position_ NFb.m Kalman filter procedures Ode500.mat aircraft flight path and INS output data Will be three files into the same folder, run the main file can be.)