IllegalFormatCodePointException

Determinant of the permutation matrix with rows ordered by p.

说明：  croston方法。对间歇性需求数据进行预测的经典方法(Croston method. Of intermittent demand data for prediction of the classical method)

离散PID控制算法实例，matlab源程序(Discrete PID control algorithm instance, matlab source)

matlab MK检验程序,用来检验时间序列突变型(matlab_MK test)

优权的傅立叶变换和最大信噪比准则方向图和功率谱，自己编写，仅供参考(Pattern and power spectrum of the Fourier transform of the privilege and the maximum signal-to-noise ratio guidelines written for reference only)

说明：  2019年第16届华为杯数学建模F题第二问的代码(Code for the second question of mathematical modeling F of the 16th Huawei cup in 2019)

说明：  做地震数据处理的去噪程序，通过原始信号，加噪声的信号，以及小波变换的信号进行比较分析，并生成图像。(Do the denoising program of seismic data processing, compare and analyze the original signal, noise signal and wavelet transform signal, and generate the image.)

面对大量的交通参数数据,如何快速建立高效的分类预测模型以尽快地对拥堵状态进行判别是一个重要的问题(Face a lot of traffic parameter data, how to quickly establish an efficient classification model to predict the state as soon as possible to discriminate on the congestion is an important issue)

This paper represents the modeling and simulation of 2 MW Direct Drive PMSG Wind energy conversion system (WECS). The modelling of wind turbine and PMSG is carried out in simulink to determine its parameter. WECS consists different components namely Wind turbine, Generator, rectifier-inverter, controller system including transformer, grid etc. The PMSG and converter model are established in the d-q model. Keywords: PMSG, WECS, Wind turbine, rectifier, inverter, MATLAB/SIMLINK, transformer, Grid

3GPP LTE测试协议，适用于无线通信领域的研究人员，学生，教师，和工程技术人员使用。由3gpp ran5工作组讨论并发布。(3GPP LTE testing protocol, it is used by research ,students ,teachers and engineerings .It is released by 3gpp RAN5 work group.)