dec

Matlab code. My friend give this to me. I hope it will be helpful to others.

qpsk源程序，有gui界面，很不错，包含误码率分析，频谱、功率谱分析，还有星座图(qpsk source, a gui interface, very good, including bit error rate analysis, spectrum, power spectrum analysis, as well as constellation)

关于空域滤波的实现 包括几种算法的实现 很好(nksakh)

自己编写的二维地震数据分析及显示，可以给二维勘探的同行们提供帮助(2Dseismic data analysis and plot)

matlab 关于主成分分析的详细代码，附带数据及gui界面文件，可直接运行(matlab on principal component analysis of the detailed code , files with data and gui interface can be run directly )

relay selection and path loss function to max the snr

船舶AIS轨迹提取，作出船舶AIS轨迹图。在此基础上，实现基于空间相似距离的K均值轨迹聚类。算法可以自定义轨迹聚类初始轨迹或者由程序随机生成初始轨迹，采用迭代的方法直到确定最终的聚类中心。(The extraction of ship AIS trajectory, make ship AIS trajectories. On this basis, to achieve similar K mean trajectory clustering based on distance space. You can customize the initial trajectory trajectory clustering algorithm or randomly generated by the program initial trajectory, iterative method was used to determine the cluster center until the end. )

蒙特卡罗ROC曲线的绘制，包括检测概率，虚警概率等(Monte Carlo ROC curve drawing, including detection probability, false alarm probability and so on)

Kelly的Solving Nonlinear Equations with Newton’s Method(This small book on Newton’s method is a user-oriented guide to algorithms and implementation. Its purpose is to show, via algorithms in pseudo-code, in MATLAB, and with several examples, how one can choose an appropriate Newton-type method for a given problem and write an ef£ cient solver or apply one written by others.)

等间距线性阵列，阵元数M=8，阵元间距d= λ /2，等幅加权，目标方位φr =0°。产生空间白噪声矢量（复高斯分布）。 设阵列信号矢量元素s(m)=exp[j mψr]，其信号幅度为1，该阵元接收机附加的高斯噪声为n(m)=nmr+jnmi，其中实虚部均为独立同分布N(0, σ2)的高斯随机数，则该通道合成信号x(m)=s(m) + n(m)，其中信噪比为： SNR = 10 lg[1/(2σ2)] = – 3 – 10 lg(σ2) (dB) (The spacing of the linear array, and the array element number M = 8, the array element spacing d = λ/2, equal amplitude weighted target azimuth φR = 0. Space generated white noise vector (complex Gaussian distribution). Let array signal vector elements s (m) = exp [j mψr], the signal amplitude, the element receiver additional Gaussian noise n (m) = nmr+jnmi which the real and imaginary parts are independent and identically distributed N ( Gaussian random numbers of 0, σ2), the channel the synthesis signal x (m) = s (m) the PPLS n (m), where SNR is: SNR = 10 lg [1/(2σ2)] =- 3- 10 lg (σ2) (dB))