A5101849710- Non-Invasive Vital Sign Monitoring
- Radio Frequency Integrated Circuit Design
- Advanced Sensor and Energy Harvesting Materials
- Photonic and Optical Devices
- Advancements in PLL and VCO Technologies
- Muscle activation and electromyography studies
Suzhou Institute of Biomedical Engineering and Technology
2023
Chinese Academy of Sciences
2023
Abstract Background The surface electromyography (sEMG) signal presents significant challenges for the dynamic analysis and subsequent examination of muscle movements due to its low energy, broad frequency distribution, inherent noise interference. However, conventional wavelet threshold filtering techniques sEMG signals are plagued by Gibbs-like phenomenon an overall decrease in amplitude, leading distortion. Purpose This article aims establish improved thresholding method that can filter...
A digital phase-locked loop (DPLL) based on a new phase-frequency detector (DPFD) is presented. The self-calibration technique employed to acquire fast acquisition, low-jitter and wide frequency range. DPLL works from 60 600 MHz with maximum power consumption of 3.5mW at supply voltage 1.8V. It also features fractional-N synthesizer 2nd-order sigma-delta noise shaping, which can achieve the small step size improved phase-noise spectrum. has been implemented in 0.18/spl mu/m quintuple-metal...