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nothing special. i m so tired

Newmark数值分析法，可以用于求解动力学频率响应。(Newmark numerical analysis method can be used to solve the dynamic frequency response.)

说明：  A Matlab Script to send the *.inp file to the FEM software platform Abaqus;(To send the pre-specified *.inp files to ABAQUS via a simple Matlab Script.)

基于最小二乘法的永磁同步电机在线参数辨识MATLAB仿真模型，辨识电机电阻、电感和永磁磁链，精度较高。(MATLAB simulation model of on-line parameter identification of permanent magnet synchronous motor based on least square method identifies resistance, inductance and permanent magnet flux linkage of the motor with high accuracy.)

简要介绍一个梁的平面弯曲问题，ansys程序 -Plane bending of a beam problem, ansys procedures

本程序是四则运算的小程序。在C++的环境下开发的。-four small Operational procedures. The C development environment.

BFSK信号调制与解调，对加噪信号进行延迟差动处理，得到重构信号后，解调与初始信号对比。(BFSK Signal Modulation and Demodulation)

定义日期类Date。要求： （1）可以设置日期； （2）日期加一天操作； （3）输出函数，输出格式为“XXXX年XX月XX日”； （4）编写主函数，定义对象，完成相应功能。 (The definition of the date of type Date. Requirements: (1) can set the date (2) date-plus-one operation (3) the output function, output format for the " XXXX in XX on XX date" (4) the preparation of the main function, the definition of the object, the completion of the corresponding function.)

本书运用现代信号处理的理论，系统地介绍了分数阶Fourier变换的定义与特性，分数阶Fourier分析的基本原理与方法及其典型的应用。内容包括：分数阶Fourier变换的起源与发展、定义与基本特性；分数阶Fourier变换与其他时频分析工具的关系；分数阶Fourier变换的快速算法；分数阶Fourier变换在信号的检测与参数估计、雷达信号处理、时频域滤波以及通信信号处理中的应用。(The book is the use of modern signal processing theory, the system introduces the definition and characteristics of the fractional Fourier transform, fractional Fourier analysis of the basic principles and methods of its typical applications. Include: the origin and development of the fractional Fourier transform, the definition and basic characteristics fractional Fourier transform relationship with other time-frequency analysis tool fractional Fourier transform algorithm fractional Fourier transform in signal detection and parameter estimation The radar signal processing, time and frequency domain filtering and communication signal processing applications.)

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