Recovering Ocean Waveheight from HF Radar Sea Echoes Distorted by Imperfect Ionospheric Reflection

摘要

A skywave-radar team has developed a real-time signal-processing package to collect high-quality sea-echo Doppler spectra under many different ionospheric conditions found in nature. Graphical displays and objective quality indices help the radar operator sort undistorted spectra from those distorted by imperfect ionospheric reflection, so that ocean wave height can be reliably estimated while the data are being collected. The package can be used either off-line on archival data or for on-line, adaptive processing of radar data as part of an ocean-scanning strategy.