modulate_64QAM

说明：  噪声中非平稳信号的频谱分析，基于MATLAB，实验报告一份(Nonstationary noise frequency spectrum analysis, based on MATLAB, a lab report)

Modelo de dos rayos de Andrea Goldsmith (figura 2.5, según expresión 2.12) f = 0.9 frecuencia en GHz landa = 0.3/f en m R = -1 coeficiente de reflexión en tierra ht = 10 altura del transmisor en m hr = 2 altura del receptor en m Gt = 1 Gr = 1 Pt = 1 d=10:.1:100000 phase_diff = 4*pi*ht*hr./(landa*d) aproximación Pr = Pt*((landa/(4*pi))^2)*((abs((sqrt(Gt)./d) + (R*sqrt(Gr).*(exp(-sqrt(-1)*phase_diff)))./d)).^2) Pr = Pt*((landa/(4*pi))^2)*(1./d).*((abs((sqrt(Gt)) + (R*sqrt(Gr).*(exp(-sqrt(-1)*phase_diff))))).^2) figure(1), clf, plot((d),10*log10(Pr/max(abs(Pr)))) grid xlabel( log_1_0(d) ) ylabel( Potencia recibida (dBm) )

最新飞行程序设计，具体的编码过程与结果描述。(The latest flight program design, concrete description coding process and results. )

说明：  计算2D或3D空间曲线的曲率和曲率半径信息，并绘制出曲率半径向量(The curvature and curvature radius information of 2D or 3D space curve are calculated, and the curvature radius vector is drawn)

基于MATLAB的AR模型的仿真，并分析功率谱，比较好。可以运行(AR model based on MATLAB simulation, and analysis of the power spectrum, the better. You can run)

vcalssification algorithm8

信号时正弦波加正态零均值白噪声，信噪比10db，信号频率2kHZ，采样频率100kHZ，数据长度N=256。 (1). 用周期图法进行谱估计。(Sine wave signal plus zero-mean normal white noise, SNR 10db, frequency 2kHZ, sampling frequency 100kHZ, data length N = 256. (1) with the periodogram spectral estimation.)

说明：  gardner位同步技术实现，matlab编程实现(Realization of bit synchronization with MATLAB.)

MATLAB中神经网络工具箱应用简介，功能强大使用方便(MATLAB neural network toolbox of application profiles, powerful and easy to use)

MATLAB相关书籍，希望对大家有用，相互学习，相互促进(MATLAB-related books, we hope useful, learn from each other and promote each other)