3 papers
math.OC2024
Low-Complexity Algorithms for Multichannel Spectral Super-Resolution
Xunmeng Wu, Zai Yang, Zongben Xu
This paper studies the problem of multichannel spectral super-resolution with either constant amplitude (CA) or not. We propose two optimization problems based on low-rank Hankel-T…
math.OC2024
Multichannel Frequency Estimation with Constant Amplitude via Convex Structured Low-Rank Approximation
Xunmeng Wu, Zai Yang, Zongben Xu
We study the problem of estimating the frequencies of several complex sinusoids with constant amplitude (CA) (also called constant modulus) from multichannel signals of their super…
eess.SP2023
Multichannel Frequency Estimation in Challenging Scenarios via Structured Matrix Embedding and Recovery (StruMER)
Xunmeng Wu, Zai Yang, Zongben Xu
Multichannel frequency estimation with incomplete data and miscellaneous noises arises in array signal processing, modal analysis, wireless communications, and so on. In this paper…