C
Chao Yu
Researcher at University College Dublin
Publications - 16
Citations - 510
Chao Yu is an academic researcher from University College Dublin. The author has contributed to research in topics: Predistortion & Amplifier. The author has an hindex of 9, co-authored 16 publications receiving 432 citations.
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Journal ArticleDOI
Band-Limited Volterra Series-Based Digital Predistortion for Wideband RF Power Amplifiers
TL;DR: This new approach eliminates the system bandwidth constraints of the conventional DPD techniques, and it allows users to arbitrarily choose the bandwidth to be linearized in the PA output according to the system requirement without sacrificing performance, which makes the DPD system design much more flexible and feasible.
Journal ArticleDOI
Behavioral Modeling and Predistortion of Power Amplifiers Under Sparsity Hypothesis
TL;DR: Results show that the proposed linearizers meet the spectral masks and error vector magnitude constraints of the referred standards and provide a reduction better than 45% in the number of parameters, compared to the FV predistorters.
Journal ArticleDOI
A Single Envelope Modulator-Based Envelope-Tracking Structure for Multiple-Input and Multiple-Output Wireless Transmitters
Chao Yu,Anding Zhu +1 more
TL;DR: Experimental results demonstrated that the distortion, including static nonlinearities, memory effects, and additional distortion caused by the structure change can be effectively compensated by using the proposed DPD technique.
Proceedings ArticleDOI
Bandwidth-constrained least squares-based model extraction for band-limited digital predistortion of RF power amplifiers
Lei Guan,Chao Yu,Anding Zhu +2 more
TL;DR: In this article, a bandwidth-constrained least squares (LS)-based model extraction is proposed to enhance the linearization performance of band-limited digital predistortion (DPD) for RF power amplifiers.
Journal ArticleDOI
Single-Model Single-Feedback Digital Predistortion for Concurrent Multi-Band Wireless Transmitters
TL;DR: Excellent performance demonstrates that the proposed approach provides an effective solution for reducing DPD system implementation complexity and cost in both digital and analog domains for future wideband concurrent multi-band transmitters.