oqpsk_pncode

对不理想环境下信号DOA（求根MUSIC算法）的性能仿真分析。并分析其与ＭＵＳＩＣ算法的优越之处。(The signal is not an ideal environment for DOA (Roots MUSIC algorithm) of the performance simulation. And its relationship with the strength of MUSIC algorithm.)

说明：  运用粒子群优化算法进行连杆的优化设计，值得参考学习！(Using particle swarm optimization algorithm to optimize the design of connecting rod is worth learning!)

用Simulink工具编写代码(S-Function方式)，产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。(Simulink tools used to write code (S-Function mode), resulting in a single Path Rayleigh channel, the Doppler spectrum for the classical spectrum, including mobile rate of 120km/h.)

这是一个matlab程序：实现二阶系统的超前滞后校正。(This is a matlab program: second-order system lead-lag correction.)

相关法和周期图法对信号进行功率谱估计，并画图在matlab上(Correlation and periodogram of the signal power spectrum estimation, and drawing on the matlab)

采用L-M优化算法用以训练BP神经网络，使其能够拟合某一附加有白噪声的正弦样本数据。设计一个三层BP神经网络，其网络的隐含层神经元的激励函数为双曲正切型，输出层各神经元的激励函数为线性函数，隐含层有6个神经元(LM optimization algorithm used to train BP neural network to enable it to fit a white noise, sine additional sample data. Design a three BP neural network, its network of hidden layer neuron activation function of hyperbolic tangent type for the output layer activation function of each neuron is a linear function of the hidden layer has 6 neurons)

超短激光脉冲传输：展宽、色散、自自相位调制、倍频、FROG，超短脉冲测量(Ultrashort laser pulse transmission: broadening, dispersion, since the self-phase modulation, frequency, FROG, ultra-short pulse measurement)

LDPC码的完整的编译码，虚拟力的无线传感网络覆盖，小波包分析提取振动信号中的特征频率。( Complete codec LDPC code, Virtual power wireless sensor network coverage, Wavelet packet analysis to extract vibration signal characteristic frequency.)

Model Fitting using a Gui code in matlab. using AR,ARMA,MA models

此文在MATLAB环境下实现了经典实用的PID算法，可能对初学者有用。(This article presents the classical PID control in MATLAB,it may help the begainers.)