KF_main

sttc，stbc blabst等的编码(sttc stbc)

simulink仿真教程，蹦极模型建模和仿真，传递函数，状态模型(simulink simulation tutorial, bungee modeling and simulation, transfer function, state model)

具有动画演示的水位控制系统仿真模型，需导入模糊控制算法(Water level control system simulation model with animation, the need to import the fuzzy control algorithm)

可以实现开机自动在后台运行matlab，为第一次运行matlab节省时间。(Matlab can start automatically in the background, saving time for the first run matlab.)

Matlab通信仿真及应用源码，很详尽，也可以作为matlab通信初学者运用(Matlab of Communication Simulation and application source code, very detailed matlab communication beginners to use, but also can be used as)

Here the syms toolbox is used and if you try to print any other values than lambda then MATLAB will print the value in fractions and that is unavoidable. So if you need to know the value in decimal, then use the command vpa() on command window

python算法，信号分析，获得信号分量的幅值、频率、初相和衰减因子。(python algorithm, signal analysis, signal components obtained amplitude, frequency, phase and attenuation factor early.)

说明：  四旋翼无人机是一种可以被遥控也可以在无人为控制的状态下执行预定任务的飞行器，与传统直升机相比四旋翼飞行器的机械结构简单，且具有高精度，灵活精度以及较低成本的特点，被广泛用于军事侦察，农艺播撒、快递派送、摄影工作等领域。四旋翼飞行器自身具有欠驱动、多变量、非线性等特性，在外界的噪声干扰情况下，增加了四旋翼无人机的不稳定以及控制系统的设计难度。所以对四旋翼飞行器的位姿控制的研究，可以开拓科研人员对控制算法以及滤波算法的认知，具有重要的研究意义。(Four-rotor UAV is a kind of aircraft that can be controlled remotely or perform scheduled tasks without human control. Compared with traditional helicopters, the Four-rotor UAV has simple mechanical structure, high precision, flexible precision and low cost. It is widely used in military reconnaissance, agricultural broadcast, express delivery, photography and other fields. Four-rotor UAV has the characteristics of under-actuation, multi-variable and non-linearity. Under the circumstance of external noise, the instability of Four-rotor UAV and the difficulty of control system design are increased. Therefore, the research on attitude control of Four-rotor aircraft can broaden the knowledge of control algorithm and filtering algorithm for researchers, and has important research significance.)

自己编的瑞利信道模型和它的概率密度函数，初学者看很好(Own series of Rayleigh channel model and its probability density function, look very good for beginners)

短时能量，平均幅度，短时过零率，端点检测。(Short-term energy, amplitude, short-term zero crossing rate, endpoint detection.)