Detection of slowly moving targets using angular- and frequency-correlation techniques

To accurately detect slow-moving vehicles, we have developed a new correlat ion technique which employs multiple sensors (two sensors with an along-tra ck orientation and two sensors with an across-track orientation). Unlike co nventional MTI (moving target indicator) radar, our technique makes use of the Doppler-shifted phase of the correlation of the scattered waves. (C) 19 99 John Wiley & Sons, Inc.