- By Paula Shaki Trimble
- Jul 24, 2000
Ultra-wideband uses a short, narrow pulse signal with a unique signature
that can be picked up by receivers equipped with a special chip. Because
the signal is emitted in intervals — fractions of seconds — it can be transmitted
across existing and widely used frequencies without causing interference.
The narrower the pulse, the more widely spread the signal, which reduces
the potential for interference with other frequencies.
In addition to carrying communications signals, ultra-wideband can be
used as radar. The pulses bounce off objects and back to the transmitter,
which interprets them to produce images more precise than traditional radar.