pitch_period

otsu s method used to find the threshold for bi-model histogram image.

Peter I. Kattan MATLAB Guide to Finite Elements An Interactive Approach

说明：  自定义的音频驱动程序支持,该AudioDevice块，船舶与信号处理模块库利用PortAudio沟通与音频硬件(Custom audio driver support, the AudioDevice block, ship and Signal Processing Blockset to communicate with audio hardware using PortAudio)

using L in profile storage. We may solve Ly  b accessing L by row and either LTx  y accesing LT by column or equivalently xTL  yT accessing L by row

netfilter module to limit the number of parallel tcp connections per IP address.

基于RSSI的质心算法，其中可以实现目标的定位。有用者请下载。(Based on RSSI centroid algorithm, which can achieve the target localization. Useful, please download.)

PSCAD，DC-AC-DC直流变压器，中间为100Hz高频变压器，一边实现Vf控制，另一边实现UdcQ控制。先在PSCAD中加载dqo_new_lib.psl后再加载DC_AC_DC_100Hz.psc。(PSCAD, DC-AC-DC DC transformer, the middle of 100Hz high-frequency transformer, while the realization of Vf control, the other side to achieve UdcQ control. First load dqo_new_lib.psl in PSCAD and then load DC_AC_DC_100Hz.psc.)

详细介绍了GM(1,1)的算法，并结合实际应用数据，得出了较为准确的预测结果，说明了算法的可行性。(Details of the GM (1,1) algorithm, combined with the practical application of the data obtained more accurate forecasting results, indicating the feasibility of the algorithm.)

说明：  二维的悬臂梁问题，简单实用，采用EFGM方法，适合初学者。(2-dimensional cantilever beam problem, simple and practical, using EFGM method, suitable for beginners.)

最优化问题的快速下降法，共轭梯度法，基于matlab算法。经过测试好用(Optimization problem of the rapid descent method, conjugate gradient method, based on matlab algorithm. Tested, easy to use)