神经网络变量筛选—基于BP的神经网络变量筛选

本代码是我自己写的，可以实现自适应算法权值估计(The code I wrote it myself, you can realize adaptive algorithm weights estimated)

输入信号为方波信号+高斯白噪声，方波信号基 频为1kHz，幅值为1，高斯白噪声方差为0.2， 均值为0，采样频率为20kHz。试用周期图法和 ARMA谱估计法(SVD-TLS)估计此信号的功率 谱，并分析比较其结果(The input signal is a square wave signal+ Gaussian white noise, square wave signal fundamental frequency 1kHz, amplitude is a Gaussian white noise variance is 0.2, the mean is 0, the sampling frequency is 20kHz. Try periodogram and ARMA spectral estimation method (SVD-TLS) estimate the power spectrum of this signal, and the analysis and comparison of the results)

ofdm在高斯白噪声中的传输和衰减以及ofdm导频的添加(ofdm transmission and pilot add white Gaussian noise)

保铮写的雷达图像经典著作，搞雷达图像研究必备(radar image)

Text attraction and my own code for good

关于ofdm的相关文章，都比较经典，适合ofdm开发者学习(On ofdm related articles, are more classic, suitable for developers to learn ofdm)

OFDM的调制过程，已经运行过，比较不错，过程很清晰(OFDM modulation process has been run before, quite good, the process is very clear)

舰船辐射噪声对舰船隐蔽性的重要性决定了其重要研究意义，提出了一种新的舰船辐射噪声模拟方法(The importance of the concealment of the ship radiated noise of ships determines its important research significance, this paper proposes a new method of ship radiated noise simulation)

实现在参数先验是高斯分布情况下，利用马尔科夫链蒙特卡洛算法来对Logistic 回归模型参数的后验分布进行抽样 (It implements different Markov Chain Monte Carlo strategies for sampling from the posterior distribution over the parameter values for Logistic Regression models with a Gaussian prior on the parameter values. )

Smoothed bootstrap Newcomb s speed-of-light data are used in the book Bayesian Data Analysis b