A new algorithm for detection of heart and respiration rate with UWB signals

Abstract

Proposed is a detection algorithm for physiological monitoring with Ultra Wide Band (UWB) radar. This new algorithm is based on detection of movement energy in a specified band of frequency using wavelet and filter banks. One of the advantages of this algorithm is its ability to detect heart and respiration rates of a subject in an environment containing other motion. The heart movement is detected with the accuracy of 95% and respiration with the 100%. This algorithm has a repeatability of 93% which is a significant characteristic of the method.

Spectrum-averaged Harmonic Path (SHAPA) algorithm for non-contact vital sign monitoring with ultra-wideband (UWB) radar

“…Next, the outputs of each filter band were sampled and quantized for subsequent digital signal processing. We used a sampling rate of 128 Hz, in contrast to other UWB vital signs estimation methods such as [4], [11], [17], [20], [23], which require sub-nanosecond sampling period, corresponding to sampling rate on the order of tens of GHz. The recorded data samples, provided by Sensiotec Inc., were processed offline for comparison with other estimation methods.…”

Wireless Body Sensor Communication Systems Based on UWB and IBC Technologies: State-of-the-Art and Open Challenges

“…Within the last couple of years, there has been a large growth of the usage of UWB technology in healthcare applications, more precisely, in the area of vital sign detection and monitoring. The working principle of the existing radar-based approaches is based on the electromagnetic energy propagated towards and through the body and its reflection on border surfaces between tissues with different wave propagation properties [ 20 , 21 , 22 , 24 , 32 , 47 , 73 , 74 , 75 , 76 , 77 , 78 , 79 , 80 , 81 , 82 , 83 , 84 ]. Lately, another approach based on the transversal propagation method proved to be an alternative viable solution for using UWB in vital signs monitoring applications [ 85 , 86 , 87 ].…”

A novel through-wall respiration detection algorithm using UWB radar

“…In fact, UWB impulse radar endowed with high range resolution and high penetrability offers an attractive technique to search trapped people hidden by obstacles by detecting their respiration. In [1][2][3][4][5], feasibility studies on detecting respiration using UWB radar have been conducted in recent years. Additionally, some other studies [6][7] address human respiration detection under low SNCR and aim to design a high-performance threshold-based detection algorithm.…”