yuzhifa

车间作业调度问题遗传算法Matlab源码,用于解决车间的调度问题(Job Shop Scheduling Problem Matlab genetic algorithm source code for the solution to the scheduling problem workshop)

说明：  遗传算法优化BP神经网络程序,很不错的，值得学习(GA for BP neural network training)

separation de sources par SOBI

说明：  ：该文首先研究了单认知用户能量检测算法的检测性能和检测灵敏度与检测时长和噪声短时间内平均功率波 动性之间的关系，得出检测性能和检测灵敏度随噪声短时间内平均功率波动性的增大而急剧下降的结论，在低信噪 比时尤为明显；针对检测性能和检测灵敏度随噪声短时间内平均功率波动性的增大而急剧下降，提出了基于多用户 协同能量检测算法。仿真表明，在低信噪比环境下，即使噪声短时间内的平均功率存在较大的波动性，只要适当地 增加协同检测的用户数，仍可获得较为准确的检测性能。(In this paper, detection performance and detection sensitivity with detection duration and noise average power fluctuation in short time is investigated firstly. Performance accuracy and detection sensitivity drop quickly with noise average power fluctuation increasing and it is worse when signal-to-noise ratio lower. Considering the characteristic, a novel new energy detection algorithm based on cooperative is presented. Simulations show that the proposed scheme improves antagonism of noise average power fluctuation in short time and gets a good detection performance as long as increasing the number of cooperative detection users.)

带通fft滤波器,简单实用，最干净的实现数据滤波；(Fft bandpass filter , simple and practical , the cleanest data filtering )

PCA Principle component analysis code

Wireless Sensor Networks (WSNs) are comprised of thousands of sensor nodes, with restricted energy, that cooperate to accomplish a sensing task. Various routing Protocols are designed for transmission in WSNs. In this paper, we proposed a hybrid routing protocol: Zonal-Stable Election Protocol (Z-SEP) for heterogeneous WSNs. In this protocol, some nodes transmit data directly to base station while some use clustering technique to send data to base station as in SEP. We implemented Z-SEP and compared it with traditional Low Energy adaptive clustering hierarchy (LEACH) and SEP. Simulation results showed that Z-SEP enhanced the stability period and throughput than existing protocols like LEACH and SEP.

菲涅尔衍射积分的 S FFT算法。理解用S FFT算法完成菲涅尔积分原理，特别是确定观察面尺寸的原理及相应公式的来源。(The Fresnel diffraction integral S- FFT algorithm.Understand complete Fresnel integral principle with S- FFT algorithm, especially the observation surface size of the source of the principle and the corresponding formula.)

WalshHadmard code for CDMA system..

说明：  这是Maple下使用的“吴方法”推理求解多项式方程组的源代码。(use of the "Wu's Method" reasoning to solve polynomial equations source.)