ITS Resources
Audio Quality Research and Data
ITS performs basic and applied research in in digital speech and
audio compression, transmission, and quality assessment. Research
facilities and resources are made available to outside researchers
in private industry, academia and other government agencies through
cooperative research and development agreements (CRADA) or
inter-agency agreements. The Audio Quality Research Web page provides
more information about this program as well as access to coder
examples and publications describing research results.
Video Quality Research and Software
The ITS Video Quality Research Project promotes increased
quality of service in digital telecommunication services by
developing technology to assess the performance of new digital
video systems and actively transfering this technology to other
government agencies, end-users, standards bodies, and the U.S.
telecommunications industry. The Video Quality Metric (VQM)
software developed by this program is a standardized method of
objectively measuring video quality that closely predicts the
subjective quality ratings that would be obtained from a panel of
human viewers. The technology is covered by four U.S. patents owned
by NTIA/ITS and is made available to be freely used for both
non-commercial and commercial purposes. Visit the Video Quality Research
Web page to learn more.
Radio Propagation Data
ITS makes available electronic data files that can be used to
validate propagation prediction methods or wireless system analysis
techniques. These data sets contain results of selected propagation
measurement efforts, along with the header information that gives
all the associated parameters for each set. For more information
about available data sets, click here.
Radio Propagation Software
Propagation modeling software developed by ITS is not subject to
copyright protection in the U.S. and is made available free of
charge, as is. Available software includes GLOBE Terrain Extraction
Routines, High Frequency (HF) models (2-30 MHz), Irregular
Terrain Model (ITM) (Longley-Rice) (20 MHz-20 GHz), IF-77
Wave Propagation Model (Gierhart-Johnson) (Air-Ground), and
Millimeter-wave Propagation Model (MPM). For more information
about available software, click here.
Table Mountain
ITS maintains and manages the Table Mountain Field Site and
Radio Quiet Zone, an area of approximately 729 hectares (1,800
acres) of flat terrain with no perimeter obstructions and
relatively homogeneous underlying ground that is protected by both
State and Federal laws from strong external signals. The site is
ideal for conducting sensitive radio or electromagnetic
experiments, as well as for applications needing low vibration and
unobstructed views of the sky. The site and its research facilities
are made available to outside researchers in private industry,
academia and other government agencies through cooperative research
and development agreements (CRADA) or inter-agency agreements.
Visit the Table
Mountain Web page for more information.