Schröder, Sven and Reermann, Jens and Stephan, Maurice and Kraus, Dieter and Kummert, Anton (2021) Experimental demonstration of the angular resolution enhancement of a monostatic MIMO sonar. In: 6th Underwater Acoustics Conference and Exhibition, UACE 2021, 44. Acoustical Society of America. 6th Underwater Acoustics Conference & Exhibition, 2021-06-20 - 2021-06-25, Griechenland. doi: 10.1121/2.0001468. ISSN 1939-800X.
![]() |
PDF
4MB |
Official URL: https://asa.scitation.org/doi/pdf/10.1121/2.0001468
Abstract
In this contribution we show by experimental tests the improvement of the angular resolution of an active monostatic Sonar system when using the Multiple-Input-Multiple-Output (MIMO) principle. This principle allows the design of a high-resolution sonar with a lower number of transducers required compared to a conventional Sonar, thus allowing the costs of the Sonar to be significantly reduced. For this purpose, a MIMO Sonar demonstrator was built and experiments were performed in a harbor basin. It is shown that the travel time information can be extended in a manner that allows a factoring of the angular resolution of the system by the number of transmitters. The key to this principle is that the respective transmission pulses of the transmitter modules can be separated from each other during signal processing on the receiver side. This can be achieved through different techniques. In this paper novel transmitter signals are presented, which are coded in a way that they can be transmitted in the same frequency and time window and afterwards be sufficiently separated by correlation filters. To evaluate and model the experiment, also a simulation was developed, which uses a simplified model of the acoustic channel to generate the received signals for a specified setup.
Item URL in elib: | https://elib.dlr.de/147131/ | ||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||||||
Title: | Experimental demonstration of the angular resolution enhancement of a monostatic MIMO sonar | ||||||||||||||||||||||||
Authors: |
| ||||||||||||||||||||||||
Date: | 2021 | ||||||||||||||||||||||||
Journal or Publication Title: | 6th Underwater Acoustics Conference and Exhibition, UACE 2021 | ||||||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||||||
Open Access: | Yes | ||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||||||
Volume: | 44 | ||||||||||||||||||||||||
DOI: | 10.1121/2.0001468 | ||||||||||||||||||||||||
Publisher: | Acoustical Society of America | ||||||||||||||||||||||||
Series Name: | Proceedings of Meetings on Acoustics | ||||||||||||||||||||||||
ISSN: | 1939-800X | ||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||
Keywords: | MIMO, Sonar, Virtual aperture, CDMA | ||||||||||||||||||||||||
Event Title: | 6th Underwater Acoustics Conference & Exhibition | ||||||||||||||||||||||||
Event Location: | Griechenland | ||||||||||||||||||||||||
Event Type: | international Conference | ||||||||||||||||||||||||
Event Start Date: | 20 June 2021 | ||||||||||||||||||||||||
Event End Date: | 25 June 2021 | ||||||||||||||||||||||||
HGF - Research field: | other | ||||||||||||||||||||||||
HGF - Program: | other | ||||||||||||||||||||||||
HGF - Program Themes: | other | ||||||||||||||||||||||||
DLR - Research area: | no assignment | ||||||||||||||||||||||||
DLR - Program: | no assignment | ||||||||||||||||||||||||
DLR - Research theme (Project): | no assignment | ||||||||||||||||||||||||
Location: | Bremerhaven | ||||||||||||||||||||||||
Institutes and Institutions: | Institute for the Protection of Maritime Infrastructures > Maritime Security Technologies | ||||||||||||||||||||||||
Deposited By: | Schröder, Sven | ||||||||||||||||||||||||
Deposited On: | 13 Dec 2021 08:10 | ||||||||||||||||||||||||
Last Modified: | 24 Apr 2024 20:45 |
Repository Staff Only: item control page