33 citations · 84 across the 19 of their papers we have counts for
11 papers · 1 filter
Graph Fourier transforms on directed product graphs
Cheng Cheng, Yang Chen, Jeon Yu Lee +1
Graph Fourier transform (GFT) is one of the fundamental tools in graph signal processing to decompose graph signals into different frequency components and to represent graph signa…
Preconditioned Gradient Descent Algorithm for Inverse Filtering on Spatially Distributed Networks
Cheng Cheng, Nazar Emirov, Qiyu Sun
Graph filters and their inverses have been widely used in denoising, smoothing, sampling, interpolating and learning. Implementation of an inverse filtering procedure on spatially…
Polynomial graph filter of multiple shifts and distributed implementation of inverse filtering
Nazar Emirov, Cheng Cheng, Junzheng Jiang +1
Polynomial graph filters and their inverses play important roles in graph signal processing. An advantage of polynomial graph filters is that they can be implemented in a distribut…
Stable Phaseless Sampling and Reconstruction of Real-Valued Signals with Finite Rate of Innovations
Cheng Cheng, Qiyu Sun
A spatial signal is defined by its evaluations on the whole domain. In this paper, we consider stable reconstruction of real-valued signals with finite rate of innovations (FRI), u…
Nonsubsampled Graph Filter Banks and Distributed Implementation
Junzheng Jiang, Cheng Cheng, Qiyu Sun
In this paper, we consider nonsubsampled graph filter banks (NSGFBs) to process data on a graph in a distributed manner. Given an analysis filter bank with small bandwidth, we prop…
Phaseless Sampling and Reconstruction of Real-Valued Signals in Shift-Invariant Spaces
Cheng Cheng, Junzheng Jiang, Qiyu Sun
Sampling in shift-invariant spaces is a realistic model for signals with smooth spectrum. In this paper, we consider phaseless sampling and reconstruction of real-valued signals in…
Phase retrieval from multiple-window short-time Fourier measurements
Lan Li, Cheng Cheng, Deguang Han +2
In this paper, we introduce two symmetric directed graphs depending on supports of signals and windows, and we show that the connectivity of those graphs provides either necessary…
Phase Retrieval of Real-Valued Signals in a Shift-Invariant Space
Yang Chen, Cheng Cheng, Qiyu Sun +1
Phase retrieval arises in various fields of science and engineering and it is well studied in a finite-dimensional setting. In this paper, we consider an infinite-dimensional phase…
Spatially Distributed Sampling and Reconstruction
Cheng Cheng, Yingchun Jiang, Qiyu Sun
A spatially distributed system contains a large amount of agents with limited sensing, data processing, and communication capabilities. Recent technological advances have opened up…
Reconstruction of sparse wavelet signals from partial Fourier measurements
Yang Chen, Cheng Cheng, Qiyu Sun
In this paper, we show that high-dimensional sparse wavelet signals of finite levels can be constructed from their partial Fourier measurements on a deterministic sampling set with…
Sampling and Galerkin reconstruction in reproducing kernel spaces
Cheng Cheng, Yingchun Jiang, Qiyu Sun
In this paper, we consider sampling in a reproducing kernel subspace of . We introduce a pre-reconstruction operator associated with a sampling scheme and propose a Galerkin r…