Abstract

Airborne maritime surveillance radar adopts wideband signal and fast scanning technology to ensure the detection of slow moving targets in strong sea clutter background. The selection of signal bandwidth is a problem of multi-discipline. The paper first makes an analysis of the optimum detection theory in clutter background, then makes an evaluation of the influencing factor from Radar Cross Section (RCS) value of clutter, clutter amplitude distribution, clutter spatial correlation, false alarm rate constraint and frequency agility characteristics, makes a simulation of the minimum detection RCS of the radar for different distance resolution. As radar's distance resolution increases, the detection ability up-growth is not so obvious, the paper presents the advises that compromise between capability and implementation complexity play an important role in radar design and performance prediction.

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