Quadrature amplitude modulation

matlab实现的fft2程序，可用于图像频谱分析(matlab implementation of fft2 procedures, can be used for image spectral analysis)

编写的有关规划问题的函数，初学者可以参考！！！！(Planning)

功率谱估计是利用有限长的数据估计信号的功率谱，广泛应用于各个领域。功率谱估计主要分为经典谱估计与现代谱估计。常用的经典谱估计方法有周期图法，相关法，周期图的改进法，常用的现代谱估计方法有最大熵谱估计，AR模型，MA模型，ARMA模型。经典谱估计适用于长序列的信号，其主要缺陷是描述功率谱波动的数字特征方差性能差，频率分辨率低，现代谱估计适用于短序列的信号，旨在改善谱估计的分辨率，并将其应用于实际地震资料的谱分析。 (Power spectrum estimation is the use of a finite length data to estimate the power spectrum of the signal, widely used in various fields. Power spectrum estimation is divided into classic and modern spectral estimation spectral estimation. Commonly used methods of classical periodogram spectrum estimation method, the relevant law, the cycle graph Improvement Act, commonly used in modern spectral estimation methods have maximum entropy spectral estimation, AR model, MA model, ARMA model. Classical spectral estimation applied to signal a long sequence, its main drawback is the fluctuation power spectrum describing digital signature variance performance is poor, the frequency resolution is low, modern spectral estimation applied to signal short sequences designed to improve spectral estimation resolution, and The analysis applied to real seismic data spectrum.)

回归分析---一种简便的数据分析预测算法，可用于预测模型(Regression analysis--- a simple data analysis prediction algorithm prediction model can be used to)

LTE Secondary sync signal auto correlation

通信原理的MATLAB编程，满足对课本基础知识的理解，包括调制解调。(Communication Theory of the MATLAB programming to meet the basic knowledge to understand the textbook, including the modem.)

该图片是对无线传感网络，从能量和死亡节点进行仿真验证，所用算法为改进量子遗传算法(The picture is a wireless sensor network nodes and death from energy simulation, the algorithm used to improve the quantum genetic algorithm)

在过程控制中，按偏差的比例（P）、积分（I）和微分（D）进行控制的PID控制器（亦称PID调节器）是应用最为广泛的一种自动控制器。-In process control, according to the percentage of deviation (P), Integral (I) and differential (D) control of PID controller (also known as PID regulators) is the most widely used of an automatic controller.

分形维中较为复杂的G-p算法的matlab源程序(Fractal dimension of the more complex algorithm matlab source Gp)

Conversion from ECEF to LLA algorithm developed in matlab