Numerical-Techniques-in-EM_sadiku

利用matlab编写的利用二分法求解g(x)=0的解法.m(Using Matlab prepared dichotomy to solve g (x) = 0 solution. M )

lorenzx相位图 吸收引子 混沌 chaos(lorenz system phase)

C-C方法求lorenz的延迟时间,还没试试，自己打开后改可以试试(C- C method for lorenz delay time)

matlab读取数据文件，进行fft，再写入数据文件，最后比较变化。(matlab to read data files for fft, and then write the data file, and finally compare changes.)

Matlab Simulation for Comparison of Different QAM Constellations and Mapping for a Channel with Additive White Gausian Noise

FLAC3D地震荷载加载动力计算常用天津波完整原始数据(Commonly used Tianjin wave complete raw data)

说明：  dfig 基于DQ轴同步旋转坐标轴系数学模型下的双馈发电机simulink (H Fuzzy fangzhen)

该模型实现了一个通用的OFDM TX和RX，这是不依赖于任何特定的行业标准。该模型的目标是开发和研究不断（不是“突发”）载波同步和定时跟踪方案。该技术纳入然后可以扩展和修改，以标准的具体通讯套件。该模型采用了“收购”技术，它利用了循环前缀相关属性，以赶在试图完成罚款跟踪算法一帧的边界粗略的估计。该模型实现了一个16点64循环前缀的OFDM载波波形。在OFDM符号有16个飞行员，3后卫音（0，带边幅），并使用45 QAM的剩余数据流4。 这包括最新型的衰落信道，误码率计算，并改善控制回路动态。(This model implements a generic OFDM TX and RX, which is not tied to any particular industry standard. The objective of this model is to develop and explore a continuous (not “bursty”) carrier and timing tracking synchronization scheme. The techniques incorporated can then be extended and modified to suite specific communications standards. The model uses an “acquisition” technique that exploits the correlation properties of the cyclic prefix to get a rough estimate of the frame boundary before attempting to accomplish the fine tracking algorithms. The model implements a 64 carrier OFDM waveform with a 16 point cyclic prefix. The OFDM symbol has 16 pilots, 3 guard tones (0 amplitude at band edge) and uses 4 QAM for the 45 remaining data streams. This latest model includes a fading channel, BER computation, and improved control loop dynamics. )

％直接型到并联型的转换 ％ ％[C,B,A]=dir2par(b,a) ％C为当b的长度大于a时的多项式部分 ％B为包含各bk的K乘2维实系数矩阵 ％A为包含各ak的K乘3维实系数矩阵 ％b为直接型分子多项式系数 ％a为直接型分母多项式系数 ％ ( Directly to the shunt-type conversion [C, B, A] = dir2par (b, a) C for when the b is greater than the length of a polynomial when part of B to include the bk of the K x 2 Victoria real coefficient matrix A contains the ak for the K x 3-dimensional real coefficient matrix b-type elements for direct polynomial coefficients a direct-type denominator polynomial coefficients)

饱和时滞系统matlab相图,给出输入变量的上下界(The matlab phase diagram of the saturated time-delay system is given, and the upper and lower bounds of the input variables are given)