swen30p

数值分析中的拉格朗日算法,函数构造比较简单。matlab程序编写。(Numerical Analysis of Lagrangian algorithm, function of relatively simple structure. matlab programming.)

《智能控制》第二版（刘金琨著）程序源码第十章(" Intelligent control" , Second Edition (Liu Jinkun a) program source code Chapter)

软件无线电的前景分析，以及一些技术的详细介绍，感觉不错(Analysis of the prospects for software radio, as well as some technical details, I feel good)

Kalman Filter and peridogram

Yule—Walker方程构造信号的AR模型,Burg递推算法计算不同阶数的预测器系数(Yule-Walker equation for constructing the signal of AR model, Burg recursive algorithm to calculate the number of different order predictor coefficient)

MODULATOR This function modulate the forward Channel chips. Block Diagram InChips -> [Walsh] -> [Spreading] -> [Output Tx Shaping Filter] Inputs: chips - chips sequence to transmit MFType - Shaping Filter type (default - Rise Cosine) Walsh - Used row of Walsh matrix Outputs: TxOut - Transmitted signal (analog signal) PN - PN sequence for I/Q Channels MF - mathed filter taps (Shaping Filter)

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The modeling and attitude stabilization control problems of a four-rotor vertical takeoff and landing unmanned air vehicle (UAV) known as the quadrotor are investigated.The quadrotor’s attitude is represented by the unit quaternion rather than Euler angles to avoid singularity problem. Taking dynamical behavior of motors into consideration and ignoring aerodynamic effect, a nonlinear controller is developed to stabilize the attitude.The control design is accomplished by using backstepping control technique.The proposed control law is based on the compensation for the Coriolis and gyroscope torques. Applying Lyapunov stability analysis proves that the closed-loop attitude system is asymptotic stable. Moreover, the controller can guarantee that all the states of the system are uniformly ultimately bounded in the presence of external disturbance torque.The effectiveness of the proposed control approach is analytically authenticated and also validated via simulation study.

Hexa to bin Galileo E1

本程序详细给出了OFDM信号的产生，基带信号，成型滤波器，及频率分析。(Give details of the procedure for selecting the OFDM signal, base-band signal, shaping filters, and frequency analysis)