wireless

本文采用小波神经网络进行交通流量预测，短时交通流量存在随机性和非线性因素，影响预测的准确性。传统预测模型难以反映交通流量变化特点，同时传统神经网络易陷入局部极小值，泛化能力差，交通流量预测精度低。为了提高短时交通流量预测精度，提出一种小波神经网络的短时交通流量预测模型。小波神经网络可以对短时交通流量随机性、不确定性进行局部分析，并进行非线性预测，验证了模型的有效性，进行了对比试验。验证结果表明，小波神经网络提高了短时交通流量预精度，预测结果更具应用价值。(In this paper, wavelet neural network is used to forecast traffic flow. There are random and nonlinear factors in short-term traffic flow, affecting the accuracy of prediction. The traditional prediction model is difficult to reflect the characteristics of traffic flow changes. At the same time, the traditional neural network is easy to fall into the local minimum, the generalization ability is poor, and the prediction accuracy of traffic flow is low. In order to improve the accuracy of short-term traffic flow forecasting, a short-term traffic flow prediction model based on wavelet neural network is proposed. The wavelet neural network can analyze the randomness and uncertainty of short-term traffic flow and perform nonlinear prediction. The validity of the model is verified and a comparative experiment is conducted. The verification results show that the wavelet neural network improves the short-term traffic flow pre-precision, and the prediction result has more application value.)

economic load dispatch with emission

PMSM table for driver for PMSM motor

说明：  遗传算法实现的阈值分割图像的代码，内附图片，可直接运行(Genetic algorithm for image segmentation code, containing pictures, can be directly run)

IIR低通滤波器程序，，使用matlab中巴特沃斯，切比雪夫Ⅰ，切比雪夫Ⅱ滤波器进行信号的滤波处理(IIR low-pass filter program )

求解所输入数据的概率分布，可随意设定所分概率区间个数。(Solving the probability distribution of the input data, can be arbitrarily set the number of sub-probability interval.)

信号由三个频率分别为0.01，0.1，0.2的正弦信号组成。 (1)作信号的连续小波变换。 (2)自己选择小波基数，对信号进行多尺度分解，将每一个正弦信号分开。 (3)重建原信号。 (Signal from the three frequencies were 0.01,0.1,0.2 sinusoidal signals. (1) continuous wavelet transform for signal. (2) choose the wavelet base, multi-scale decomposition of signals, a sinusoidal signal of each separate. (3) reconstruction of the original signal.)

测量粗差中抗差滤波算法加权函数的对比，程序能够运行，函数对比结果画图呈现。(weighting function comparison in robust filter.)

fastica算法实现忙元分析的算法，matlab编程

矩阵数值分析的matlab编程,包括插值与拟合等问题(Matrix numerical analysis matlab programming, including issues such as interpolation and fitting)