Chunhui Pan

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Normal function of the dopaminergic system is necessary for speech fluency. There was evidence that the activities of dopamine transporter (DAT) and dopamine D2 receptor (DRD2) could be altered in people with speech disfluency. This study aims to ascertain the possible correlation between two dopaminergic genes (SLC6A3 and DRD2) and disorder of speech(More)
A proof-of-concept Delta Sigma AD modulator using dynamic analog components is designed and fabricated in 90nm CMOS technology. The measurement results of an experimental prototype demonstrate the feasibility of the proposed switched-capacitor (SC) architecture to realize a 2nd-order Delta Sigma AD modulator with ring amplifier based integrators and dynamic(More)
This paper presents a novel multi-bit feedforward ΔΣAD modulator for low power and high signal-to-noise-and-distortion (SNDR) application. The integrators in the modulator are realized by ring amplifiers without static current. Multi-bit quantizer and analog adder in the feedforward modulator is realized by a passive-adder embedded successive(More)
Optical and electronic crosstalk in the Focal Plane Assemblies (FPAs) of satellite instruments degrades the radiometric quality of remote sensing data, and can be a major limitation to achieve performance quality needed for environmental and climate monitoring research. Correction algorithms for this effect have been developed, such as the one developed for(More)
A 2nd-order ΔΣAD modulator architecture is proposed to simplify the operation mode using ring amplifier and SAR quantizer. Proposed modulator architecture can guarantee the reset time for ring amplifier and relax the speed requirement on asynchronous SAR quantizer. The SPICE simulation results demonstrate the feasibility of the proposed(More)