On window parameter selection of short-time Fourier transform with Gaussian window in detection of LFM signals
Yunsong Zhou · Journal of Chongqing University of Posts and Telecommunications · 2005
This paper studies the window parameter selection of short-time Fourier transform(STFT) with Gaussian window in detection of linear FM signals.Through derivation,the formula of the optimum Gaussian window parameters for certain linear FM signal,as well as the choice principles of the parameters for distinguishing different linear FM signals is obtained.It is also proved that the accurateparameter estimations of a linear FM signal can be obtained by STFT-Radon transform.Simulation results prove the validityof our formula and principles.