Search Results
The search returned 1,237 publication(s) on its.ntia.gov.
This report describes field measurements to characterize Land Mobile Radio (LMR) channel occupancy of Federal bands 162–174 MHz and 406–420 MHz at a single central location in the Washington, D.C., area. This is part of the National Telecommunication...
The Public Safety Statement of Requirements (PS-SoR) for Communications and Interoperability focuses on the needs of first responders to communicate and share information as authorized, when it is needed, where it is needed, and in a mode or form tha...
This report describes how the current frequency assignment process influences spectrum efficiency in the federal land mobile radio frequency bands. In light of the increasing demands for land mobile radio communications, federal spectrum managers mus...
Proceedings of the International Symposium on Advanced Radio Technologies, February 26–28, 2007
This report presents four sets of equations developed by the National Telecommunications and Information Administration (NTIA) Office of Spectrum Management (OSM) to compute the bandwidth correction factor (BWCF) for peak and average power levels and...
This paper summarizes results from an experiment whose goal was to assess whether the NTIA General Video Quality Metric (VQM) is an acceptable objective metric for measuring High Definition TV (HDTV) video quality. The HDTV subjective test that was p...
The Institute for Telecommunication Sciences (ITS) is the research and engineering laboratory of the National Telecommunications and Information Administration (NTIA) of the U.S. Department of Commerce (DOC). ITS provides technical support to NTIA in...
We investigate the use of an adaptive processor (a quantizer pseudoinverse) and the statistics of the associated pseudoerror signal to reduce quantization error in scalar quantizers when a small amount of prior knowledge about the signal x is availab...
This report describes the results of interference tests and measurements that have been performed on radar receivers that have various missions in several spectrum bands. Radar target losses have been measured under controlled conditions in the prese...
This Phase 1 report contains a description of federal agencies with GMF assignments in the 162–174 MHz band, with emphasis on their LMR systems and their use in the Washington, D.C. area. It also describes many of the mobile radio technologies used...
This report describes four Reduced Reference (RR) video calibration algorithms of low computational complexity. RR methods are useful for performing end-to-end in-service video quality measurements since these methods utilize a low bandwidth network...
The purpose of this handbook is to provide a user’s manual for the in-service video quality metric (IVQM) tool. IVQM performs automated processing of live video signals. This program runs under the Windows XP® operating system on two PCs communicati...
Researchers at the Institute for Telecommunication Sciences (ITS) in Boulder, Colorado, are trying to make sure important emergency video comes through clearly. They are in the process of developing requirements for public safety video applications....
We have designed, conducted, and analyzed a subjective speech quality experiment with unrestricted timing where subjects can vote whenever their opinions are fully formed, rather than at fixed time intervals. Analysis of the resulting listening times...
A serious problem with traditional “command & control” spectrum management techniques is that they do not easily accommodate new technologies and new services. This paper describes the necessary principles of flexible-use spectrum rights which m...
In response to interference from an S–band (2700–2900 MHz) airport surveillance radar (ASR) to a meteorological (weather) radar in the same band, measurements were performed at the field location of the two radars to determine the interference mecha...
The purpose of ISART is to explore the future use of existing and emerging radio technologies. To this end, the conference brings together a diverse collection of people from academia, business, and government to discuss not only the technical aspec...
This report provides results from tests that measured digital television (DTV) susceptibility to ultrawideband (UWB) interference. A test system was developed to inject interference with known characteristics into a victim receiver and quantitativel...
The Institute for Telecommunication Sciences (ITS) is the research and engineering laboratory of the National Telecommunications and Information Administration (NTIA) of the U.S. Department of Commerce (DOC). ITS provides technical support to NTIA in...
The purpose of this handbook is to provide a user’s manual for the in-service video quality metric (IVQM) tool. IVQM performs automated processing of live video signals. This program runs under the Windows XP® operating system on two PCs communicati...