很实用的时频分析工具箱，包括短时傅里叶正反变换等，很好，很强大哦~~分享给大家，包括以下函数的源代码： % sigmerge - Add two signals with given energy ratio in dB. % % Choice of the Instantaneous Amplitude % amexpo1s - Generate one-sided exponential amplitude modulation. % amexpo2s - Generate bilateral exponential amplitude modulation. % amgauss - Generate gaussian amplitude modulation. % amrect - Generate rectangular amplitude modulation. % amtriang - Generate triangular amplitude modulation. % % Choice of the Instantaneous Frequency % fmconst - Signal with constant frequency modulation. % fmhyp - Signal with hyperbolic frequency modulation. % fmlin - Signal with linear frequency modulation. % fmodany - Signal with arbitrary frequency modulation. % fmpar - Signal with parabolic frequency modulation. % fmpower - Signal with power-law frequency modulation. % fmsin - Signal with sinusoidal frequency modulation. % gdpower - Signal with a power-law group delay. % % Choice of Particular Signals % altes - Altes signal in time domain. % anaask - Amplitude Shift Keyed (ASK) signal. % anabpsk - Binary Phase Shift Keyed (BPSK) signal. % anafsk - Frequency Shift Keyed (FSK) signal. % anapulse - Analytic projection of unit amplitude impulse signal. % anaqpsk - Quaternary Phase Shift Keyed (QPSK) signal. % anasing - Lipschitz singularity. % anastep - Analytic projection of unit step signal. % atoms - Linear combination of elementary Gaussian wave packets. % dopnoise - Generate complex Doppler random signal. % doppler - Generate complex Doppler signal. % klauder - Klauder wavelet in time domain. % mexhat - Mexican hat wavelet in time domain. % tftb_window - Window generation (previously window.m). % % Addition of Noise % noisecg - Analytic complex gaussian noise. % noisecu - Analytic complex uniform noise. % % Modification % scale - Scale signal using Mellin transform. % % % Processing Files % % Time-Domain Process