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A baseband Doppler simulator for radar system development

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2 Author(s)
Eskelinen, Pekka ; Helsinki Univ. of Technol., Finland ; Ruoskanen, J.

Elementary electronics building blocks can be configured as a low-cost baseband Doppler simulator for developing the post-detector processing parts such as MTIs and MTDS of millimeter wave pulsed radars employing amplitude and phase channels. The challenge of narrow pulses in conjunction to low Doppler frequencies is handled here by CMOS switches and normal function generator ICs. Test noise is generated with an off-the-shelf radio RF/IF circuit. Wideband video amplifiers are not required. Typical performance figures include pulse widths from 50 ns, target ranges from 0 to ambiguity maximum, target velocities from 0.5 m/s to 500 m/s and PRFs up to 100 kflz. Virtual target RCS can be adjusted as needed in a straightforward way.

Published in:

Aerospace and Electronic Systems Magazine, IEEE  (Volume:21 ,  Issue: 4 )