matlab_jiaocheng

code matlab pr low filter

说明：  利用matlab编写的POS集群优化算法的工具箱，值得一看！(POS clusters prepared by using matlab optimization toolbox, worth a visit!)

bit error rate of quadrature modulation.

灰色理论认为系统的行为现象尽管是朦胧的，数据是复杂的，但它毕竟是有序的，是有整体功能的。灰数的生成，就是从杂乱中寻找出规律。同时，灰色理论建立的是生成数据模型，不是原始数据模型，因此，灰色预测的数据是通过生成数据的gm(1,1)模型所得到的预测值的逆处理结果。(Gray theory that the behavior of the system even though the phenomenon is dim, the data is complex, but still it is ordered, there is a whole function. Gray number generation, that is, from the clutter to find out the laws. Meanwhile, the gray theory is to generate the data model, not the original data model, so gray prediction data by generating data gm (1,1) model predicted values ​ ​ obtained result of the inverse process.)

预观控制，以倒立摆模型为研究对象，通过预观控制方式实现倒立摆的平衡(Preview control inverted pendulum model for the study, pre-view of control inverted pendulum balance)

Rotation Invariance using Fourier Mellin transform

fast fourie transform of a signal

说明：  4PSK的源程序 matlab程序示例(4PSK source of the examples Matlab)

this application is used to search in data base to get some data with special specificaton

宇航工具箱，包括地影计算、大气密度计算等(Aerospace Toolbox, including the shadow calculation, calculation of atmospheric density)