roughset

数字信号的传输方式分为基带传输和带通传输，在实际应用中，大多数信道具有带通特性而不能直接传输基带信号。为了使数字信号在带通信道中传输，必须使用数字基带信号对载波进行调制，以使信号与信道的特性相匹配。这种用数字基带信号控制载波，把数字基带信号变换为数字带通信号的过程称为数字调制。通常使用键控法来实现数字调制，比如对载波的振幅、频率和相位进行键控。(Transmission of digital signals into base band transmission and band-pass transmission, in practice, most of the channel with band-pass characteristics can not directly transmit base-band signal. In order to make the digital signal is transmitted with a communication channel, you must use the digital baseband signal to modulate the carrier to make the signal to match the characteristics of the channel. The digital baseband signal control with a carrier, the digital baseband signal conversion to digital bandpass signal is called digital modulation. Keying method is commonly used digital modulation, such as on the carrier' s amplitude, frequency and phase shift keying.)

numerical integration

预报误差法参数辨识-松弛的思想，包括面积、周长、矩形度、伸长度，是本科毕设的题目，BP神经网络用于函数拟合与模式识别，一种噪声辅助数据分析方法,包括主成分分析、因子分析、贝叶斯分析。( Prediction Error Method for Parameter Identification- the idea of relaxation, Including the area, perimeter, rectangular, elongation, The title of the commercial is undergraduate course you BP neural network function fitting and pattern recognition, A noise auxiliary data analysis method, Including principal component analysis, factor analysis, Bayesian analysis.)

frequency shift keying simulation in matlab

NICAM就是双声道数字声技术，其应用范围及其广泛，最典型的应用便是电视广播附加双声道数字声技术，利用它进行立体声或双语广播，以充分利用电视频道的频谱资源。(NICAM728-digital two channel sound for terrestrial television)

BER for BPSK modulation with 2x2 MIMO and MMSE-SIC equalizer (Rayleigh channel)

license plate recognition

说明：  针对matlab的simulink仿真的知识，对有这方面需要的网友请下载。(Simulink for matlab simulation of the knowledge of a need, please download the User.)

本程序的功能是用牛顿——拉夫逊法进行潮流计算。程序为10节点，10支路。供研究电力系统潮流的人员参考。(This procedure is the function of the Newton- Raphson method flow calculation. Procedures for the 10-node, 10 branches. Power Flow for research officers.)

有关MATLAB编程的粒子群群算法，有几个算例可直接使用。 (About MATLAB programming particle swarm swarm optimization, there are a few examples can be used directly.)