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lte技术中的关键技术：OFDM技术原理编程实现(lte technology in key technologies: OFDM Principles of Programming Technology)

用等倾线法绘制二阶系统的相平面图 二阶系统自己拟定(Line method to draw the second-order system using equal inclination plan second-order system own prepared)

采用电导增量法的光伏系统最大功率点跟踪matlab/simulink仿真，可正确运行，可自行修改光照强度和环境温度(Incremental conductance method using the maximum power point tracking photovoltaic systems matlab/simulink simulation can be run correctly, you can modify the light intensity and ambient temperature)

Okumura analyzed path-loss characteristics based on a large amount of experimental data collected around Tokyo, Japan. He selected propagation path conditions and obtained the average path-loss curves under flat urban areas. Then he applied several correction factors for other propagation conditions, such as: Antenna height and carrier frequency Suburban, quasi-open space, open space, or hilly terrain areas Diffraction loss due to mountains Sea or lake areas Road slope Hata derived empirical formulas for the median path loss (L50) to fit Okumura curves.

These are knn algorithm documentations...

解ABCD的四元方程求解ABCD的值，并通过此值计算出电力器件vto，rt的值，从而使并联器件变得简单，有效(Solution ABCD equation solving the value of the ABCD and power devices VTO rt value calculated by this value, so that the the parallel device becomes simple, effective)

很好的短时傅里叶变换的MATLAB程序，适用于初学者。(MATLAB code of short time Fourier transform)

OFDM信号的编码译码仿真，英文说明更详细。(This simulation script set allows for an OFDM transmission to be simulated. Imagetx.m generates the OFDM signal, saving it as a windows WAV file. This allows the OFDM signal to be played out a sound card and recorded back. Imagerx.m decodes the WAV to extract the data. settings.m contains all the common settings to specify all the simulation parameters such as FFT size, number of carriers, input data source file, input and output WAV files, etc. See settings.m for more details. Note: The both the receiver and transmitter must have a copy of the input data file, as this is used for calculating the exact number of data words in the transmission. The scripts should work as extracted. Just run imagetx.m to generate the OFDM signal. Then run imagerx.m to decode the signal. The initial settings transmit a wave file Corrs.wav . The decoded OFDM data ( Out.wav ) can be compared with the original data by listening to the two wave files.)

this code described ellipse fitting by matlab code

一段很好地的改进music 算法lurootmusic(some good music to the improved algorithm lurootmusic)