Date of Publication
4-5-2024
Document Type
Master's Thesis
Degree Name
Master of Science in Physics
Subject Categories
Physics
College
College of Science
Department/Unit
Physics
Thesis Advisor
Romeric F. Pobre
Defense Panel Chair
Emmanuel T. Rodulfo
Defense Panel Member
Al Rey C. Villagracia
Perry Neil J. Fernandez
Abstract/Summary
A set of modified radar equations for use in step-frequency radar in heart monitoring applications was formulated accounting for both signal attenuation and three-dimensional wavefront spreading from a point source. The effects of these modifications on rangefinding performance were tested using simulation data collected from a virtual model of a radar heart monitor and its operating environment, wherein the signal data was derived from the resulting electric field distribution within the simulation model as approximated via finite-element method. It was found that the modifications to account for spherical wavefronts acted to reduce the relative amplitude of radar signatures at close-range while increasing that of radar signatures at longer-range. Meanwhile, the modifications made to account for signal attenuation were found to overcompensate for the attenuation effects, due to the limited accuracy of the inverse Fourier transform operation utilized in depicting exponential decay.
Keywords: heart monitoring, step-frequency radar, finite-element-method modeling
Abstract Format
html
Language
English
Format
Electronic
Keywords
Heart—Monitoring; Signal processing; Remote sensing
Recommended Citation
Jadie, A. L. (2024). A non-planar attenuating waves account of a modified radar rangefinding method for cardiac applications. Retrieved from https://animorepository.dlsu.edu.ph/etdm_physics/17
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Embargo Period
4-5-2025
