Kalman-filter

典型潜艇水下辐射噪声空间分布特性测试与分析技术研究(Typical submarine underwater radiated noise characteristics of the spatial distribution of test and analysis of technical studies)

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.

一级单摆的模拟与仿真，采用的matlab语言编写的，是一个二阶的非线性系统！(Modeling and simulation of a pendulum, the matlab language, is a second-order nonlinear system!)

A MATLAB implementation of Fingerprint Image Enhancement based on the approach proposed by Kale, Manza, and Humbe in "Fingerprint Image Enhancement using Composite Method," In Proceedings GSPx-2005 Pervasive Signal Processing Conference.

浮动顺序搜索算法搜索特征空间生成候选子集(Sequential floating search algorithm to search a subset of the feature space generated candidate)

说明：  数字波束形成算法 lms 最小均方误差 非常好(DBF digital beamforming least square LMS)

一个很好的matlab编程绘制B样条曲线，(Matlab program to draw a good B-spline curve,)

说明：  matlab编写的FFT变换和滤波的程序(this is matlab code for fft transfering and filtering.)

Fin the FFT, this program find the fast fourier transform, this is of many applications for the processing signal

64_Qam_modulation this code is a simulation of 64 QAM modulatiom for communication system in matlab