spectrum

离散灰色PID跟踪的MATLAB源程序代码(PID)

说明：  数字调制程序fsk psk dpsk各种调制的源程序 升余弦信号等(Fsk psk dpsk digital modulation process of the source of various modulation cosine signals )

lsqr分解，方法简单，节省时间和内存，为反演算法提供了好的解方程(this programme used for LSQR)

数学形态学用于技术分析ECG心律的探测，很不错的(mathematical morphology for technical analysis of the ECG arrhythmia detection, very good)

说明：  用matlab语言编写的ztc代码，实现将图像进行EZW编码解码和重构的过程。(Ztc written by matlab code to achieve the EZW image encoding and decoding and reconstruction。)

本源码是matalb解决数学中经典的tsp问题的代码，算法思想是遗传算法(The source is matalb tsp solve mathematical problems in the classical code, the algorithm idea is that genetic algorithms)

college library system

用SIMULINK仿真的NCO，可以直接运行(Use SIMULINK NCO can be run directly)

MATLAB电力系统设计与分析,一本MATLAB在电力系统分析和设计方面的教材。(power system design and analysis using MATLAB)

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) )