Ground-penetrating radar (GPR) is a common technique for evaluating the structure and
quality of civil engineering materials. The ever-increasing demand for higher GPR time …

The ideal time-frequency (TF) representation which distributes the total energy along the
instantaneous frequency (IF) of a signal is essentially sparse. Motivated by the weighted …

This paper addresses the problem of estimating the parameters of adaptive directional time–
frequency distributions (ADTFDs). ADTFDs locally optimize the direction of the smoothing …

Compressive sensing (CS) of the signal ambiguity function (AF) and enforcing the sparsity
constraint on the resulting signal time-frequency distribution (TFD) has been shown to be an …

This paper introduces a novel localized Gini index (GI) designed for the assessment and
optimization of time-frequency distributions (TFDs). This approach employs the localized …

Time-frequency distributions (TFD) provide a set of powerful tools for the non-stationary
signal analysis. Although TFD overcomes signal representation limitations, the most …

This paper presents a modified orthogonal propagator method (OPM) with spline
interpolation for direction of arrival (DoA) estimation. The conventional OPM is based on the …

The design of high-resolution and cross-term (CT) free time-frequency distributions (TFDs)
has been an open problem. Classical kernel based methods are limited by the trade-off …

摘要针对短时傅里叶变换(Short-time Fourier transform, STFT), Gabor 变换和魏格纳–
维尔分布(Wigner-Ville distribution, WVD) 出现的时频分辨率模糊和交叉项干扰 …

Symbolic regression is an important application area of genetic programming (GP), aimed at
finding an optimal mathematical model that can describe and predict a given system based …