1d-forward

cientific method refers to a body of techniques for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.[1] To be termed scientific, a method of inquiry must be based on gathering observable, empirical and measurable evidence subject to specific principles of reasoning.[2] The Oxford English Dictionary says that scientific method is: "a method of procedure that has characterized natural science since the 17th century, consisting in systematic observation, measurement, and experiment, and the formulation, testing, and modification of hypotheses."[3] Although procedures vary from one field of inquiry to another, identifiable features distinguish scientific inquiry from other methods of obtaining knowledge. Scientific researchers propose hypotheses as explanations of phenomena, and design experimental studies to test these hypotheses. These steps must be repeatable

白噪声 –单位冲激信号 –正弦信号 –方波信号 –三角波信号 功率谱(White Noise- unit impulse signal- sinusoidal signal- a square wave signal- triangular wave signal power spectrum)

Estimates the power spectral densities (PSDs) using both the generalized Ridge Regression (GRR) method [Hoerl, Kennard] and the ordinary RR method with loading level decided by the harmonic mean (HKB) and a Bayesian estimator (LW) for deciding the diagonal loading level.

二次指数平滑法，仅供参考。需要学习的可以下来看一看(Secondary exponential smoothing method, are for reference only. Need to learn can be down to take a look at the)

本人搭建的Matlab风电模型、直驱2MW的，研究塔架振动的(I set up the Matlab, 2 mw direct-drive wind model, the mode of vibration，PMSG)

matlab下实现模拟退火算法的程序，非常好非常实用的程序！(matlab simulated annealing algorithm under the procedures, a very good program very useful!)

The explicit finite dierence method to solve heat equation

全面学习matlab的ppt基础教程，入门必备(The basis of a comprehensive study of the matlab ppt tutorial, beginners must)

将背景音乐（交响乐）中的摩斯电码找出并分离出来(morse_code_sound.wav is a mono (1-channel) 11,025 samples per sec, 16-bits per sample, WAV file. There is a morse code signal within the audio file, you should be able to hear it in the background, but it is not very audible (able to be heard). Write a Matlab program to analyze the wav file and determine the narrow range of frequencies occupied by the morse code sound. Then separate the morse code sound into a separate file and the music into a separate file. Write out the separated morse code and the separated music to separate wav files titled your_name_morse.wav and your_name_music.wav)

This also a demo of the Particle Swarm Optimization to have a look on the PSO train