nao_v63

认知无线电系统中，主用户和认知用户仿真代码，可以根据需要加入多个主用户和认知用户等。matlab的实现(Cognitive radio system, the primary users and cognitive user simulation code, as needed into a number of primary users and cognitive users. matlab implementation)

cooperative sensing using AND technique

说明：  利用matlab软件进行粒子群算法PSO和量子粒子群算法QPSO的程序编写，并分别对测试函数Shpere进行寻优。(Matlab software is used to program particle swarm optimization (PSO) and quantum particle swarm optimization (QPSO), and the test function shpere is optimized.)

training phase of speech recognition project

给出了分形计算的源代码的matlab程序，可以迅速帮助大家进行分形的分析与计算，参数容易设置(given fractal calculation of the source code of Matlab procedures, can help you quickly fractal analysis and calculation of parameters of easy setup)

用于计算dft函数相关性的代码，包括自相关和互相关(To Calculate DFT correlation function)

卡尔曼滤波，给出最小二乘意义下温度的最优估计(Kalman Filter)

关于三相三电平逆变器IGBT的一个仿真模型(On the three phase three level inverter IGBT a simulation model)

从初值出发，先计算y对时间t的导数，得到y的变化速度；求出x对t的导数，得到x随时间的变化速度。然后时间前进一小步h=0.002，同时x和y也都发生一个小的变化，即在原来数值基础上加上时间步长h和变化速度的乘积。如果x到达1或者-1，强制让y发生变化。这个过程不断迭代，得到结果。 (completed chart)

时频分析中的cohen类中最基本的双线性时频分布式wigner-ville分布，由于在该分布中不含窗函数，因此避免了短时窗傅里叶变换时间分辨率、频率分辨率相互牵制的矛盾(Time-frequency analysis of the Cohen class of bilinear time-frequency distribution is the most basic Wigner-Ville distribution, because the function in the distribution is not included in the window, so as to avoid the contradiction of short-time window Fourier transform time resolution, frequency resolution of each other)