Abstract
This document compares two approaches to finding resonance peaks from a
single sensor: 1) averaging multiple measurements of the transfer function or
frequency-domain scattering matrix, versus 2) using the iterative time-reversal
process, which involves iteratively re-transmitting a time-reversed version of
the scattered field at the previous iterations. The averaging method has the
advantage of handling arbitrarily much noise if sufficiently many averages are
used. On the other hand, up to a certain level of noise, the time-reversal
method has dramatic advantages over the averaging method; but it also requires more complex equipment. This document discusses the tradeoffs involved, with the goal of providing information that may be useful in the system design process.
single sensor: 1) averaging multiple measurements of the transfer function or
frequency-domain scattering matrix, versus 2) using the iterative time-reversal
process, which involves iteratively re-transmitting a time-reversed version of
the scattered field at the previous iterations. The averaging method has the
advantage of handling arbitrarily much noise if sufficiently many averages are
used. On the other hand, up to a certain level of noise, the time-reversal
method has dramatic advantages over the averaging method; but it also requires more complex equipment. This document discusses the tradeoffs involved, with the goal of providing information that may be useful in the system design process.
| Original language | English |
|---|---|
| Number of pages | 21 |
| Publication status | Published - 2023 |
Publication series
| Name | Technical Report LUTEDX/(TEAT-7280)/1-21/(2023) |
|---|---|
| Volume | TEAT-7280 |
Subject classification (UKÄ)
- Signal Processing