It is well known that time-frequency analysis (TFA) characterises signals in time-frequency
plane. Theoretically, traditional non-parameterised TFA can analyze any signal, but it is …

In this paper, we present an iterative method for the accurate estimation of amplitude and
frequency modulations (AM-FM) in time-varying multi-component quasi-periodic signals …

Time-reassigned synchrosqueezing transform (TSST) provides a high concentration of the
time–frequency (TF) representation of impulsive-like signals. However, when TSST is used …

In this paper, a novel approach for time-frequency analysis and detection, based on the
chirplet transform and dedicated to non-stationary as well as multi-component signals, is …

A new approach for the analysis of nonstationary signals is proposed, with a focus on audio
applications. Following earlier contributions, nonstationarity is modeled via stationarity …

Featured Application Visually interpretable phase space representations can aid the
development of new methodologies in digital holography in general and can be evaluated …

In this paper, an evolution law for the modulus of the Short Time Fourier Transform, referred
as spectrogram, of a frequency modulated multicomponent signal is proposed. Based on …

We propose a novel technique to estimate the channel characteristics for robust speech
recognition. The method focuses on reliable time–frequency speech patches which are …

In this paper, we first present a stable computation of high-order discrete orthonormalized
Shmaliy polynomials (SPs). Then, based on SPs we introduce a new type of color image …

The paper presents a first attempt to correct the time-frequency reassignment of a
multicomponent signal having non separable individual components. In particular, the case …