FEM

matlab-CDMA业务信道卷积编码实现()

说明：  超声图像重建，包括基本步骤和一部分源代码。可用作实验设计。(Ultrasound image reconstruction)

本文使用三维FDTD算法实现文献《Application of the three_Dimensional Method to the analysis if Planar Microtrip Circuits》IEEE trans. On MTT 1990 38(7)的一个矩形微带贴片天线的S11参数的计算。采用MATLAB编程完成数值计算，并与文中的结果进行了比较。(This three-dimensional FDTD algorithm using the document " Application of the three_Dimensional Method to the analysis if Planar Microtrip Circuits" IEEE trans. On MTT 1990 38 (7) of a rectangular microstrip patch antenna of the S11 parameter of the calculation. Complete the numerical calculation using MATLAB programming, and with the text of the results were compared.)

在认知无线电中，频谱感知频谱分配是两个主要问题，而动态频谱接入是理解频谱感知的关键。(In CR, spectrum sensing and spectrum allocation is the major problem, but the dynamic spectrum access is the key to understand spectrum sensing.)

基于多频（三频）的频谱校正（相位差法），达到校正相位的目的，已经过调试。(Based on multi-frequency (C-band) spectrum correction (phase difference method) to achieve the purpose of the correction phase, has been testing.)

matlab的潮流计算程序，复制到代码区即可使用(load flow calculation of matlab)

梅尔倒频谱，语音识别的相关代码，以及相关注释(Mel cepstrum, speech recognition-related code, and related notes)

this file is basic prony method algorithm

常见的buffer设计，包括：Fast ring buffer, Loop buffer, Bip buffer， circular character buffer，可以方便的集成到相关代码中(common buffer example and code, including fast ring buffer, loop buffer, bip buffer, circular character buffer, and they can integrate to relative code easily.)

电力系统继电保护中方向阻抗型继电器仿真，在分布参数下构造“0接线”阻抗继电器模块，可对三相短路、两相短路和单相短路的出口故障、末端故障和外部故障进行仿真，得到各相继电器的相位，是研究阻抗保护的有效工具。(Power system protection in the direction of the impedance relay simulation, the distribution parameters structure " 0 Connection" impedance relay module, the simulation of three-phase short circuit, two-phase short-circuit and export single-phase short circuit fault, the end of the fault and external fault, the phase of each phase relay is an effective tool to study the impedance protection.)