fdtd2d_7005

说明：  滑动DFT实现短时傅里叶变换的matlab代码，包括正变换和逆变换，可极大提高时频分析的计算效率(Sliding DFT to realize short-time Fourier transform matlab code, including positive and inverse transforms, can greatly improve the efficiency of time-frequency analysis.)

In sound processing, the mel-frequency cepstrum (MFC) is a representation of the short-term power spectrum of a sound, based on a linear cosine transform of a log power spectrum on a nonlinear mel scale of frequency.

simuink直接转矩控制系统仿真，对于了解直接转矩控制原理有一定帮助(Simuink direct torque control system simulation)

fm modulation in matlab

功率电子领域matlab仿真文件，已经验证过，程序运行正常(Power electronics field matlab simulation file, has already been verified, the normal operating procedures)

基于短时能量的基音短点检测，有基于短时能量的计算方法、短时过零率，有matlab程序，同事对应word讲解，算法原理图，和算法详细介绍。(Short pitch detection based on short-term energy, based on the calculation method of the short-time energy, short-time zero-crossing rate, matlab program, colleagues corresponding word on the schematic diagram of the algorithm, and the algorithm described in detail.)

潮流计算牛拉法和PQ分解法有详细解析，电力系统的基本潮流都有解析，纯手工(Flow Calculation cattle Rafah and PQ decomposition method has a detailed analysis)

先进PID控制及其MATLAB仿真(刘金锟)(Advanced PID control and MATLAB simulation (Liu Kun) )

QPSK BER SER AWGN 正交相移键控的基带数字通信系统(QPSK BER SER AWGN )

IMU的惯性导航算法实现机制，通过引入非线性卡尔曼滤波算法提高定位的精度。(Implementation of inertial navigation algorithm based on IMU.The nonlinear Calman filtering algorithm is introduced to improve the positioning accuracy.)