The Signal Digital Processing in the Millimeter Band FMCW Radar

Abstract

The frequency-modulated continuous wave-radars - (FMCW-radars) are widely applied in the car road safety systems, the aircraft altimeters, the fusion plasma microwave diagnostics and in other ranging systems of different usage. The most optimal choice in terms of the "cost-quality" criterion for the radars that function at tens of meters distances is a transceiving set homodyne circuitry preference. The Gunn oscillators and Schottky diode barrier mixers usage in such radar sets let one create solid-state midget microwave detectors of different purposes. However, designing the transceiving set-based measuring system, one is confronted with a number of difficulties, depended on the high requirements over the transmitted waveshape and the generator and reception path gain frequency responses linearity.