EXTENDED TARGET DETECTION WITH EMPHASIS ON ACOUSTIC SURVEILLANCE. VOLUME 2: EXTENSIONS AND SPECIFIC APPLICATIONS
Abstract
Based on the procedures and results of Volume 1 of this report, a general equation for output signal-to-noise ratio is derived for a received signal in the presence of reverberation with a non-flat spectrum as well as ambient noise with a flat spectrum. This result is then applied to a RAKE radiometer processing a monochromatic pulse and a linearly swept FM pulse returned from an extended fluctuating target in order to obtain, with reasonable assumptions, the output signal-to-noise ratio for these waveforms in algebraic form. It was not possible to put the output signal-to-noise ratio for the doppler invariant pulse in algebraic form, so that result is given in integral form. For all three waveforms, however, simple adjustments are outlined for application of the results to simpler processors (two-filter radiometer, weighted radiometer, matched filter) and simpler targets (extended non-fluctuating target, fluctuating point target, stationary point target). Also, an expression for processing gain is derived which relies on this output signal-to-noise ratio.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 15, 1967
- Accession Number
- AD0807510
Entities
People
- Burton S. Abrams