Assessment of Compatibility Between Ultrawideband Devices and Selected Federal Systems

Report ID: 
NTIA 01-43
January 01, 2001
Abstract: 

Recent advances in microcircuit and other technologies have allowed the use of very narrow pulses (typically less than a nanosecond) with very wide bandwidths in new applications in both radar and communication devices. These devices, called Ultrawideband (UWB) devices, may have instantaneous bandwidths of 25 percent or more of their center frequency. They are capable of locating nearby objects and can use processing technology to “see through walls” and communicate in multipath propagation environments, which makes them useful in many commercial and government applications. The developers of UWB devices, because of their low output power, low manufacturing cost, and anticipated wide marketability are seeking authorization from the National Telecommunications and Information Administration (NTIA) and the Federal Communications Commission (FCC) to operate UWB systems on an unlicensed basis.

Excel Spreadsheets used for Calculations in NTIA Special Publication 01-43

Note: You must first download file pmitm.zip and unzip file pmitm.dll to your WINDOWS/SYSTEM directory before downloading these Excel files.


Report
Section
Excel Spreadsheet Description
5.5 Air Route Surveillance Radar (ARSR-4)
5.5 Air Surveillance Radar (ASR-9)
5.5 &
B.3
Air Traffic Control Radio Beacon System (ATCRBS) airborne transponder
5.5 &
B.3
Air Traffic Control Radio Beacon System (ATCRBS) ground interrogator
5.5 Distance Measuring Equipment (DME) airborne interrogator
5.5 Distance Measuring Equipment (DME) ground transponder
5.5 Fixed Satellite Earth Station (5º elev. angle)
5.5 Fixed Satellite Earth Station (20º elev. angle)
5.5 Marine Radar
5.5 Microwave Landing System (MLS) airborne
5.5 Next Generation Weather Radar (NEXRAD)
5.5 Radar Altimeter (Pulsed)
5.5 Search and Rescue Satellite (SARSAT) Land User Terminal (downlink)
5.5 Search and Rescue Satellite (SARSAT) Land User Terminal (uplink)
5.5 Terminal Doppler Weather Radar (TDWR)
A.2 Next Generation Weather Radar (NEXRAD)
A.3 Air Route Surveillance Radar (ARSR-4)
A.4 Air Route Surveillance Radar (ASR-9)
A.5 Radar Altimeters (Continuous Wave)
A.5 Radar Altimeters (Pulse)
A.6 Air Traffic Control Radio Beacon System (ATCRBS) ground interrogator
A.6 Air Traffic Control Radio Beacon System (ATCRBS) airborne transponder
A.7 Microwave Landing System (MLS)
A.8 Distance Measuring Equipment (DME) airborne interrogator
A.8 Distance Measuring Equipment (DME) ground transponder
A.9 4GHz Earth Station (average interference power)
A.9 4GHz Earth Station (peak interference power)
A.10 Search and Rescue Satellite (SARSAT) Land User Terminal (average interference power)
A.10 Search and Rescue Satellite (SARSAT) Land User Terminal (peak interference power)
A.11 Terminal Doppler Weather Radar (TDWR)
A.12 Maritime radar
B UWBRings Aggregate Emitter Model

Companion report by NTIA's Institute for Telecommunication Sciences [Link to ITS]