Discrete-Time Signal Processing and Short-Time Fourier Analysis

2013 ◽  
pp. 13-13
Author(s):  
Philipos C. Loizou
Keyword(s):  
Signal Processing ◽  
Fourier Analysis ◽  
Discrete Time ◽  
Time Signal ◽  
Short Time

Pulse Oximeter for Low SpO2 Level Detection Using Discrete Time Signal Processing Algorithm

2019 ◽  
Vol 13 (2) ◽  
Author(s):  
Sumit Pandey ◽  
Cher Ming Tan ◽  
Hsiao-Wen Chen ◽  
Yao En Xie ◽  
Jung Hua Tung ◽  
...  
Keyword(s):  
Signal Processing ◽  
Discrete Time ◽  
Time Signal ◽  
Signal Processing Algorithm ◽  
Initial Stage ◽  
Custom Made ◽  
Low Levels ◽  
Short Time ◽  
Clinical Problems ◽  
Probe Head

Oximeter is an important clinical device used for measuring peripheral capillary oxygen saturation (SpO2) in blood and hence accurate results are needed in order to help physicians predict clinical problems in the initial stage(s) of liver or kidney diagnosis. Different issues associated with the accuracy of SpO2 and heart rate measurement accuracy are studied in this work. With the understanding of these issues, a new SpO2 monitoring system is proposed that comprises of a better detection method, novel discrete time signal processing (DTSP) algorithm, and a custom-made oximeter probe head. The proposed SpO2 measurement system is capable of determining low levels of SpO2 present in human blood and produce the results in a short time that enable real-time monitoring of a patient SpO2. It can also distinguish low level of SpO2 against background noise.

Discrete-time signal processing

2017 ◽  
pp. 1-45
Author(s):  
Alexander D. Poularikas ◽  
Zayed M. Ramadan
Keyword(s):  
Signal Processing ◽  
Discrete Time ◽  
Time Signal

scholarly journals Combination of HP and LP filters for narrow band antialiasing filter

2021 ◽  
Vol 72 (4) ◽  
pp. 283-286
Author(s):  
Bohumil Brtník
Keyword(s):  
Signal Processing ◽  
Discrete Time ◽  
Operational Amplifier ◽  
Narrow Band ◽  
Time Signal ◽  
Spice Simulation ◽  
Output Resistance ◽  
High Frequencies ◽  
Filter Structure ◽  
Reconstruction Filter

Abstract The discrete time signal processing requires an anti-aliasing filter at the input and a reconstruction filter at output. Some filters of biquads structure are characterized by a decreasing of the attenuation at high frequencies, caused by the final value of the output resistance of the operational amplifier. In this paper we discuss a design of combined BP filter without mentioned decrease. The proposed filter structure was verified by SPICE simulation.

Discrete-Time Signal Processing with DNA

2013 ◽  
Vol 2 (5) ◽  
pp. 245-254 ◽  
Author(s):  
Hua Jiang ◽  
Sayed Ahmad Salehi ◽  
Marc D. Riedel ◽  
Keshab K. Parhi
Keyword(s):  
Signal Processing ◽  
Discrete Time ◽  
Time Signal
Sign in / Sign up

Export Citation Format

Share Document