Method for Sea Surface High Frequency Radar Cross-Section Estimation Using Doppler Spectral Properties.
DEPARTMENT OF THE NAVY WASHINGTON DC
Pagination or Media Count:
A method for estimating the high frequency radar cross-section of the sea surface. A Doppler spectrum of the sea surface is obtained by correlating returns from the high frequency radar signals. Approach and recede Bragg spectral lines and a zero Doppler frequency continuum level are identified in the Doppler spectrum. The amplitude ratio rho between the Bragg spectral lines and an amplitude ratio zetam between the maximum amplitude Bragg spectral line and the zero Doppler frequency continuum are measured from the Doppler spectrum. The radar cross-section is then determined from the ratios rho and zetam. In a further method embodiment, the estimated radar cross-sections of targets appearing in the Doppler spectrum. Patents
- Active and Passive Radar Detection and Equipment