Eworkzipx

Jerk混沌系统产生的模拟信号的均值化处理 方法简单效果明显(Mean treatment method Jerk chaotic system to produce an analog signal simple obvious effect)

经典粒子群算法的matlab实现代码。用函数进行测试实验，并给出算法寻优迭代的效果图(Classical PSO algorithm matlab. Experiments with test functions, and gives an iterative optimization algorithm renderings)

梯度下降法是一个最优化算法，常用于机器学习和人工智能当中用来递归性地逼近最小偏差模型(The gradient descent method is an optimization algorithm used in machine learning and artificial intelligence to recursive approximation of the minimum deviation model )

c语言非线性最小二乘法的程序，解决非线性最小二乘法问题(The nonlinear least square method)

说明：  双三次插值matlab代码，内含lena标准测试图像(Bicubic interpolation, with lena in zip)

base_band.rar文件解压后可以在matlab平台直接编译运行，实现通信系统的升余弦基带 成型处理，码元速率，采样率、滚降系数都可以灵活设置，特别方便学习通信的同学加深对基带信号的理解。(base_band.rar unzip the files can directly compile and run matlab platform to achieve communication system raised cosine baseband shaping processing, chip rate, sample rate, roll-off factor can be set flexibly, in particular, to facilitate students to learn to communicate better to the base band signal understanding.)

人工蜂群ABC算法在Matlab下的源代码，在四种基准目标函数下，经仿真测试均可成功运行，适合初学ABC算法的人参考(Artificial bee colony ABC algorithm in Matlab source code in four benchmark objective function, the simulation can be run successfully tested, suitable for beginners ABC algorithm Reference)

在SENSE成像中如何将中间图像转化为最终图像，就要用到这个程序(Using specfied sampling vector to generate a 2D aliasing matrix. The sampling vector is a vector of n-entries of either 0 or 1, where 0 indicates no k-space line acquisition and 1 indicates k-space line is acquired in the accelerated scan. For example, a sampling vector of [0 1 0 1 0 1 0 1 0 1] indicate the 2-fold acceleration with 8 phase encoding lines. The aliasing matrix is calculated based on Fourier imaging)

说明：  在瑞利衰落下对OFDM系统进行的仿真，用MATLAB实现。(in Rayleigh fading under the OFDM system simulation using MATLAB.)

产生随机信号观测样本，不同信噪比和归一化频率。用Leivison-Durbin迭代算法求解AR模型的系数并估计功率谱。(Generate random signal observation samples, different signal to noise ratio and normalized frequency.Use Leivison- Durbin iterative algorithm of AR model coefficients and estimate the power spectrum.)