Simultaneous operation of two over-the-horizon radars.
By exploiting the reflective and refractive nature of high-frequency (HF) radiowave propagation through the ionosphere or the conducting sea surface, over-the-horizon radar (OTHR) systems perform wide-area surveillance at long range well beyond the limit of the horizon of conventional line-of-sight...
| Main Authors: | , , |
|---|---|
| Format: | |
| Language: | English |
| Published: |
2007
|
| Online Access: | http://ezproxy.villanova.edu/login?url=https://digital.library.villanova.edu/Item/vudl:173618 |
| Summary: | By exploiting the reflective and refractive nature of
high-frequency (HF) radiowave propagation through the ionosphere
or the conducting sea surface, over-the-horizon radar
(OTHR) systems perform wide-area surveillance at long range
well beyond the limit of the horizon of conventional line-of-sight
(LOS) radars. Improved characterizations of the targets can be
achieved by using multiple OTHRs operating simultaneously as
compared to a single OTHR operating alone. In this paper, we
consider concurrent operations of two OTHR systems that occupy
the same frequency band with different chirp waveforms. The
objective is to respond to the advanced wide-area surveillance
needs without reducing the wave repetitive frequency. For this
purpose, a new cross-radar interference cancellation technique is
developed and its effectiveness is verified through both analytical
and simulation results. |
|---|