High frequency ground wave radar measurement of ocean surface parameters during the ERS-1 calibration-validation experiment

Gill, Eric W.; Howell, R.; Hickey, K.; Walsh, J.; Dawe, Barry

doi:10.1109/oceans.1993.326030

Cited by 2 publications

(1 citation statement)

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“…The utilization of sound waves in sonar systems and radio waves in radar systems has experienced rapid development over the past two centuries. Notably, significant advancements have been achieved in the last two decades regarding the remote sensing of various surface parameters within marine environments through the application of high-frequency (HF) Doppler radars [1]. Animals hold significant value, and their distribution and behavior around sustainable ocean energy sources are meticulously studied.…”

Section: Introductionmentioning

confidence: 99%

The applications of sonar and radar systems in underwater detection

Cai

2024

ACE

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The development of sonar and radar systems utilizing sound and radio waves, respectively, has evolved significantly over the past two centuries. Recent decades have witnessed remarkable progress in remote sensing using high-frequency Doppler radars for marine surface parameter analysis. Understanding animal behavior around sustainable ocean energy sources is crucial for mitigating potential risks linked to such installations. Increasing the Signal-to-Noise Ratio (SNR) enhances signal reception. A technique estimating noise in the detection coil's first half determines the transfer function between the reference and detection coils. This enables separation of the Ultra-Nuclear Magnetic Resonance signal from noise, preserving it using non-linear fitting. Sonar systems, using sound waves, detect underwater objects, map surfaces, and track marine life. Sound waves emitted by the transmitter are reflected back to calculate distances. Challenges in sonar systems include a blind zone caused by submerged transducers in shallow water. To improve, SNR enhancement is critical. Sonar's future may rely on AI-assisted signal processing. Radar systems, operating with radio waves, share features with sonar, focusing on object detection and ranging. Improvement avenues include 3D imaging and AI-enhanced signal processing. In conclusion, sonar and radar systems are crucial tools for underwater exploration and object detection. While challenges persist, innovative solutions and AI advancements promise enhanced capabilities for both systems.

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Section: Introductionmentioning

confidence: 99%