A Noise-Reduced Light-to-Frequency Converter for Sub-0.1% Perfusion Index Blood SpO$_{\text 2}$ Sensing.
Fang TangZhipeng LiTongbei YangLai ZhangXichuan ZhouShengdong HuZhi LinPing LiBo WangAmine BermakPublished in: IEEE Trans. Biomed. Circuits Syst. (2020)
Keyphrases
- low frequency
- text indexing
- database
- power spectra
- noise level
- information retrieval
- keywords
- text retrieval
- free text
- short time fourier transform
- high frequency
- noise reduction
- real time
- automated analysis
- gaussian noise
- control method
- index structure
- xml documents
- data structure
- signal to noise ratio
- noisy data
- natural language processing
- suffix tree
- sensor networks
- contrast agent
- compressed text
- information extraction