D-1 Introduction - Anritsu S412E User Manual

Appendix D — Glossary of Terms
D-1 Introduction
The following terms are related to this product and its technology.
D-2 Glossary of Terms
3GPP : The 3rd Generation Partnership Project (3GPP) is a collaboration
Adapter : A fitting that supplies a passage between two sets of equipment when
Adaptive Array
Antenna : Adaptive array antenna is a type of advanced 'smart' antenna
ADC : Analog-to-Digital Converter (ADC, A/D or A to D) is an electronic device
Adjacent Channel : Adjacent Channel is a channel or frequency that is directly above or
Adjacent channel
interference : Adjacent channel interference refers to signal impairment to one
S412E UG
agreement that was established in December, 1998. It is a co-operation
between ETSI (Europe), ARIB/TTC (Japan), CCSA (China), ATIS
(North America), and TTA (South Korea). The scope of 3GPP was to
make a globally applicable third generation (3G) mobile phone system
specification within the scope of the ITU's IMT-2000 project. 3GPP
specifications are based on the evolved GSM specifications, now
generally known as the UMTS system.
they cannot be directly interconnected.
technology that continually monitors a received signal and dynamically
adapts signal patterns to optimize wireless system performance. The
arrays use signal processing algorithms to adapt to user movement, to
changes in the radio-frequency environment, and to multi-path and
co-channel interference.
that converts continuous signals to discrete digital numbers. The
reverse operation is performed by a digital-to-analog converter (DAC).
ADC can uniquely represent all analog input values within a specified
total input range by a limited number of digital output codes. Refer also
to DAC.
below a specific channel or frequency. First-adjacent is immediately
next to another channel, and second-adjacent is two channels away, and
so forth. Information on adjacent channels is used in keeping stations
from interfering with one another.
frequency due to the presence of another signal on a nearby frequency.
PN: 10580-00318 Rev. P D-1