true_FM_ambi

主动轮廓模型CV算法，实现核磁共振脑实质分割(active contour CV Algorithm)

1.纽马克算法，振动分析方法，计算多自由度系统振动响应，位移，速度，加速度 2.用于计算多自由度系统固有频率、固有振型、模态质量、模态刚度矩阵、正则模态向量、受迫响应振动 3.里兹法是一种缩减系统自由度的近似方法，用于多自由度系统的求解 4.庞加莱截面图法，用来对多变量自治系统的运动进行分析 5.频谱图法，用于系统的频域分析 6.线加速度法求解系统振动响应 7.雨流计数法，主要用于工程界, 特别在疲劳寿命计算中运用非常广泛，对载荷的时间历程通过计数的过程反映了材料的记忆特性(1. Newmark algorithm, vibration analysis method to calculate multiple degrees of freedom system vibration, displacement, velocity, acceleration 2. Multi-DOF system for calculating the natural frequencies, mode shapes, modal mass, modal stiffness matrix, normal modes state vector, forced vibration response 3. Ritz method is an approximate method to reduce the degrees of freedom for multi-degree of freedom systems solving 4. Poincare sectional view method for multivariable autonomous motion system are 5. the spectrum analysis method for frequency domain analysis system 6. the method for solving linear acceleration system vibration 7. the rain flow counting method, mainly used in engineering, especially used in the calculation of the fatigue life of a very wide range of load time through the course of the process of counting it reflects the memory characteristics of the material)

this program contain a thresholding method to threshold images

布拉格光栅通过反射谱滤波仿真，使用矩阵算法(Bragg grating reflection spectra filtered through simulation, using the matrix algorithm)

基于BPSK调制的认知无线电能量检测,关于检测概率和虚警概率(bpak modulation for energy detection base on CR)

Matlab编程必备手册，包含编程格式规范，程序控制结构和实例，适用于初学者。(Matlab programming required manual contains programming format specification, program control structure and examples for beginners.)

This code is related to the course Digital Communications. It makes a simple communication system which uses AWGN and QPSK

svm的一种特征选择方法，基因选取算去，减少特征数量，减少运算时间，也可提高运算精度(svm a feature selection method, gene selection operator to reduce the number of features to reduce the computation time, but also can improve the calculation accuracy)

产生两不迥频率的信号，并对两信号作复数FFT变换，找出频率为50Hz的信号对其进行能量计算(Two distant signal is not generated frequency, and two signals for complex FFT transform to identify the frequency of 50Hz signal to calculate its energy)

利用FFT进行滤波，可以选取任意频带数据，并恢复响应频带数据的时程信号(Using FFT filtering, can choose any bands data, and restore the time history of response frequency band data signal)