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A bistatic HF radar has been developed for application to ocean current mapping and ship vector tracking. The radar can operate in a multi-frequency mode, so that it can map ocean current vertical shear and can provide more robust ship tracks than single frequency HF radars. This tracking robustness is achieved by avoiding target fading due to echo nulls from frequency and azimuthal variations in...
Frequency modulated continuous wave (FMCW) is often employed in practical HF radar ocean surface remote sensing systems. The first- and second-order monostatic cross sections of the ocean surface in the context of high frequency ground wave radar operation are derived for a dipole source with an FMCW waveform. The Fourier coefficients of the rough ocean surface are described as zero-mean Gaussian...
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