P0301

Feature extraction of a image

用matlab编写的周期谱分析程序及数据。(cyclic spectrum)

针对MUSIC算法在进行信号波达方向(DOA)估计时谱峰搜索运算量大的问题,提出了一种基于FFT多波束算法与MUSIC算法的联合DOA估计方法。该方法采用FFT多波束算法形成多个波束,近似估计信号DOA,获得对应波束指向,再利用MUSIC算法实现对信号DOA的精确估计。这样就只需在该波束指向对应的空域范围内搜索,减小了DOA估计的运算量。(MUSIC algorithm for performing signal DOA (DOA) estimates peak search operation when big problem, a joint DOA estimation method based on FFT algorithm and multi-beam MUSIC algorithm. The method uses FFT algorithm for multi-beam forming multiple beams, approximate estimate signal DOA, obtain the corresponding beam pointing, reuse MUSIC algorithm for accurate estimation of the signal DOA. This will only search within the beam direction corresponding airspace, reducing the amount of computation DOA estimates.)

此源码构建的模型是基于MATLAB平台，采用bragg结构，高效率发光管的光学结构设计。分别给出p波和s波的分量。(Construction of this source model is based on the MATLAB platform, using bragg structure, high efficiency LED optical structure design. Were given p-wave and s-wave component.)

名义应力发估算疲劳循环次数，希望对你有所帮助，共同学习探讨(Nominal stress to estimates fatigue life cycles)

均值滤波：把每个像素周围的8个像素来做均值操作，可以平滑图像，速度快，算法简单，但是无法去掉噪声，只能微弱的减弱它。(The mean filtering: 8 pixels around each pixel do mean, you can smooth image, fast and simple algorithm, but can not get rid of the noise, only faint weakened it.)

simulation du moteur a courant continu

可以动态调节运行环境的参数，考虑雨衰 阴影 和多径影响，虚拟力的无线传感网络覆盖。( Can dynamically adjust the parameters of the operating environment, Consider shadow rain attenuation and multipath effects Virtual power wireless sensor network coverage.)

说明：  模糊建模工具箱，使用模糊聚类方法对系统进行辨识(Fuzzy modeling toolbox)

本算法在训练步数、训练时间及其误差精度等方面都优于常规的模糊神经网络，其学习收敛速度快、误差曲线也更稳定。(the algorithm steps in training, training time and error accuracy is superior to the conventional fuzzy neural network, learning fast convergence, the error curve is more stable.)