Conference proceeding
Delay Spread Estimation in Shallow Water Acoustic Channels Using Masked Channel Subspaces
OCEANS 2017 - ABERDEEN
2017
DOI: 10.1109/OCEANSE.2017.8084985
Abstract
Tracking the shallow water acoustic channel in real time has been a long standing challenge, particularly over moderate to rough sea conditions due to unpredictable oceanic activity that are difficult to track dynamically using a single algorithm. We build upon prior work to propose a constrained non-convex mixed norm solution that tracks the rapidly fluctuating shallow water acoustic channel as a banded delay spread, wherein different bands correspond to different degrees of multipath reflection and bounce patterns. This enables us to exploit the non-convex solution landscape to track different channel activity independently through the banded constraints, which are implemented as masks on the initialization of the channel tracking algorithm. Promising improvements over the current art in channel prediction error and computing time were observed over experimental field data collected at 200 meters range and 15 meters depth.
Details
- Title: Subtitle
- Delay Spread Estimation in Shallow Water Acoustic Channels Using Masked Channel Subspaces
- Creators
- Ananya Sen GuptaEmma Hawk
- Resource Type
- Conference proceeding
- Publication Details
- OCEANS 2017 - ABERDEEN
- DOI
- 10.1109/OCEANSE.2017.8084985
- Language
- English
- Date published
- 2017
- Academic Unit
- Electrical and Computer Engineering
- Record Identifier
- 9984231857202771
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