73 citations · 219 across the 39 of their papers we have counts for
7 papers · 1 filter
Identification and Quantification of Aerosol Hot-spots over Lahore Region using MODIS Data
Safa~Ashraf, Zubair Khalid, Muhammad Tahir +1
The increased concentration of aerosols in the air caused by ever-rising urbanization and the development of various industries has horrendous consequences on human health, environ…
Estimation of Groundwater Storage Variations in Indus River Basin using GRACE Data
Yahya Sattar, Zubair Khalid
The depletion and variations of groundwater storage~(GWS) are of critical importance for sustainable groundwater management. In this work, we use Gravity Recovery and Climate Exper…
Spatial-Slepian Transform on the Sphere
Adeem Aslam, Zubair Khalid
We present spatial-Slepian transform~(SST) for the representation of signals on the sphere to support localized signal analysis. We use well-optimally concentrated Slepian function…
Joint SO(3)-Spectral Domain Filtering of Spherical Signals in the Presence of Anisotropic Noise
Adeem Aslam, Zubair Khalid
We present a joint SO(3)-spectral domain filtering framework using directional spatially localized spherical harmonic transform (DSLSHT), for the estimation and enhancement of rand…
Multiscale Optimal Filtering on the Sphere
Adeem Aslam, Zubair Khalid, Jason D. McEwen
We present a framework for the optimal filtering of spherical signals contaminated by realizations of an additive, zero-mean, uncorrelated and anisotropic noise process on the sphe…
Sampling Schemes for Accurate Reconstruction and Computation of Performance Parameters of Antenna Radiation Pattern
Umair Ahmed, Zubair Khalid
In practice, the finite number of samples of the spherical radiation pattern or antenna gain are taken on the sphere for both the reconstruction of the antenna radiation pattern an…