Radar-Based Respiratory Measurement of a Rhesus Monkey by Suppressing Nonperiodic Body Motion Components

TL;DR

This paper introduces a radar-based method for accurately measuring the respiration rate of a restless rhesus monkey by suppressing nonperiodic body motion components using an antenna array system.

Contribution

It presents a novel radar signal processing technique that effectively isolates respiratory signals from body motion in small, active animals.

Findings

Accurately measures respiration rate despite frequent body movements

Effective suppression of nonperiodic motion components

Utilizes antenna array to enhance signal extraction

Abstract

We propose a method to measure the respiration of a rhesus monkey using a millimeter-wave radar system with an antenna array. Unlike humans, small animals are generally restless and hyperactive in nature, and suppression of their body motion components is thus necessary to realize accurate respiratory measurements. The proposed method detects and suppresses nonperiodic body motion components while also combining and emphasizing the periodic components from multiple echoes acquired from the target. Results indicate that the proposed method can measure respiration rate of the target monkey accurately, even with frequent body movements.