In a wireless system with Intelligent Reflective Surfaces (IRS) containing many passive
elements, we consider the problem of channel estimation. All the links from the transmitter to …

Several papers have been published recently on the quasi-maximum likelihood (QML)
approach for the polynomial phase signals (PPS) parameter estimation. The QML is …

Measurement of linear frequency modulation (LFM) signal is significant for radar,
communication, and electronic reconnaissance fields. An LFM signal is a wideband signal …

Effective quasi maximum likelihood-random samples consensus algorithm is proposed for
the instantaneous frequency (IF) estimation of overlapping signals in the time-frequency (TF) …

In this paper, an efficient and robust algorithm for fast parameter estimation and separation
of multi-component LFM signals is proposed, which is suitable for processing overlapping …

The problem of linear frequency modulated (LFM) or chirp signal analysis is proposed in this
paper. It is considered as an estimation theory problem in which the LFM parameters are …

A model of a room impulse response (RIR) is useful for a wide range of applications.
Typically, the early part of a RIR is sparse, and its sparse structure allows for accurate and …

The instantaneous speed (IS), ie, instantaneous frequency, is an important feature to exploit
the time-frequency characteristic of nonstationary signals. The IS estimation is widely used …

The problem of parameters estimation of signals composed of an unknown number of chirps
with time-varying amplitude is presented using a sparse reconstruction framework. The …

In some situations, speech can be a disturbing source of ambient noise. Active noise control
(ANC) systems have difficulties in dealing with speech due to its non-stationary nature when …