User's Manual

Ultra Wideband Perimeter Surveillance Pole / User’s Manual 7
Array
Processing Interface
TCP/IP Packet
• Tracks
• Classifications
TCP/IP Packet
• Scans
TCP/IP Packet
• Slot Lease
TCP/IP Packet
• Configuration
• Status
TCP/IP Packet
• Notifications
• Alarms
TCP/IP Packet
• Configuration
• Controls
Server
Radio
Radio
Radio
…
XML
• SEIWG ICD
Web Message
• Video Relay
• Alarm Relay
Video
Figure 5: USS Data Flow
1.2.2 Network Cells
As introduced in Section 1.1 USS is organized into network cells consisting of six poles,
covering ~100m x 20m (about the size of a football field). Networking cells are formed to
ensure only one P400 radar in a cell is transmitting at any given time. For example (Figure
6), if a system is composed of three networking cells, of which only one radar per cell is
transmitting at a time, then there would be three widely spaced P400s transmitting at any
time. Because each of the three networking cells operates on a different code channel
(different timing of when pulses are transmitted) and are a considerable distance from each
other the transmitting P400s do not interfere with each other and also are not synchronous.
2
1 3
4
5
5
4
3
2
1
Cell 1 Cell 2Cell 3
6
1
2
3
5
4
6
6
120 meters 120 meters
20 meters
X
X
Radiating P400 Receiving P400s
Figure 6: Map of TDMA slot 1