dem_direct

欧拉角转换为四元数的MATLAB程序，顺序为312(Euler angles into a quaternion of the MATLAB program, the order of 312)

QAM调制编程，MATLAB仿真。通信系统设计(QAM modulation programming)

load recieves maximum power from the source when its resitive value is equal to the thevenin resistance of the circuit.

Efficient subpixel image registration algorithms

说明：  ukf与ekf做对比，可以看出ufk与ekf的性能差别(compare ukf with ekf)

Matlab初学者的最佳参考，包含了Matlab仿真的基本过程。(Matlab for beginners the best reference, contains the basic process of Matlab simulation.)

kalman filter for tracking

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matlab的上百个示例程序，GUI界面的图形绘制，数值计算，矩阵运算，等现成的实用程序。(hundreds of sample programs in matlab GUI interface, graphics rendering, numerical calculation, matrix operations, and other off-the-shelf utility.)

说明：  This code simulates one dimensional resonance by FDTD