An important aspect of traffic safety is the development of aids that extend the driver's time and motion perception. One promising candidate is the compact, lightweight millimeter-wave FM-CW radar now being widely studied. Although the homodyne FM-CW radar is well known for its simplicity, it has a relatively low S/N ratio. This paper describes the principles behind our newly developed heterodyne FM-CW radar and its evaluation results. The heterodyne FM-CW radar generates sidebands by switching a front-end amplifier and also uses the heterodyne detection technique for gaining sensor sensitivity. The heterodyne FM-CW radar's signal to noise ratio was 19.5 dB, better than previously designed homodyne FM-CW radar.
Automotive FM-CW radar with heterodyne receiver
Kraftfahrzeug-Frequenzmodulation-Dauerstrichradar mit Überlagerungsempfänger
IEICE Transactions on Communications ; E79-B , 12 ; 1806-1812
1996
7 Seiten, 10 Quellen
Article (Journal)
English
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