lfm

通过Yule-Walker方程法求解谱估计(Power spectrum estimation by Yule-Walker equation)

粒子群算法用于背包问题情况 典型组合优化问题(Particle swarm optimization for the case of the more popular knapsack problem)

In this paper, we investigate the timing and carrier frequency offset (CFO) synchronization problem in decode and forward cooperative systems operating over frequency selective channels. A training sequence which consists of one orthogonal frequency-division multiplexing (OFDM) block having a tile structure in the frequency domain is proposed to perform synchronization. Timing offsets are estimated using correlation-type algorithms. By inserting some null subcarriers in the proposed tile structure, we propose a computationally efficient subspace decomposition- based algorithm for CFO estimation. The issue of optimal tile length is studied both theoretically and through simulations. By judiciously designing the tile size of the pilot, the proposed algorithms are shown to have better performance, in terms of synchronization errors and bit error rate, than the time-division multiplexing-based training method and the computationally demanding space-alternating generalized expectation-maximization

matlab code for ploting bar chat with columns filled by specified background

power_Transfo3phCoreType_iexc.rar,功率电子领域matlab仿真文件，已经验证过，程序运行正常(power_Transfo3phCoreType_iexc.rar,Power electronics field matlab simulation file, has already been verified, the normal operating procedures)

etilist algorithm for teaching learning based optimization

小波包分析提取振动信号中的特征频率，计算十字叉丝的在不同距离的衍射图像,可直接计算得到多重分形谱。( Wavelet packet analysis to extract vibration signal characteristic frequency, Calculation crosshairs diffraction image at different distances, It can be directly calculated multi-fractal spectrum.)

说明：  模式 识别 matlab程序 很不错的，相信我哦 (Pattern recognition matlab program)

说明：  OFDM误比特率性能， 采用QAM调制，(BER performance of OFDM using QAM modulation,)

说明：  增强学习Matlab源吗,对机器学习,在线控制的人有所帮助(Matlab source you enhance the learning of machine learning, online help people control)