Glossary
Advanced RISC Machine (ARM) A
processor architecture based on a 32-bit reduced
instruction set (RISC) computer.
Air Interface Encryption (AIE) Provides
confidentiality on the radio link over the air.
Algebraic Code Excited Linear
Prediction A speech (or other audio signals)
encoding algorithm where a limited set of pulses is
distributed as excitation to linear prediction filter.
Abbreviation:ACELP
Analog Refers to a continuously variable signal or
a circuit or device designed to handle such signals.
Analog-to-Digital Converter A device that
converts analog signals into digital data. Also known
as codec.
Abbreviation:ADC
Automatic Gain Control (AGC) A process
or means by which gain is automatically adjusted
in a specified manner as a function of a specified
parameter, such as received signal level.
BALUN Balanced-unbalanced converter.
Band Frequencies allowed for a specific purpose.
Bluetooth A wireless protocol utilizing short-range
communications over short distances.
CMOS Complementary Metal-Oxide
Semiconductor
Co-uP Co-Processor
Customer Programming Software (CPS)
Software with a graphical user interface containing
the feature set of a radio.
Default A pre-defined set of parameters.
Differential Quadrature Phase Shift
Keying (DQPSK) A sub-class of the QPSK
methods of transmitting data. Rather than using the
absolute value of phase (as in QPSK), only the
difference between the current value of phase and
the previous value of phase are used. By using
phase differences, the implementation is simpler
(since an absolute reference source is not required).
Digital Refers to data that is stored or transmitted
as a sequence of discrete symbols from a finite set;
most commonly this means binary data represented
using electronic or electromagnetic signals.
Digital-to-Analog Converter A device that
converts a digital value to a corresponding dc
voltage value.
Abbreviation:DAC
Digital Signal Processor (DSP) A special-
purpose microprocessor that can perform math
calculations very rapidly.
Electrically Erasable Programmable
Read-Only Memory (EEPROM) Integrated
circuit used to store data, which can be erased by
electrical methods.
Federal Communications Commission
(FCC) Regulates interstate and international
communications by radio, television, wire, satellite
and cable in all 50 states, the District of Columbia,
and U.S. territories. It was established by the
Communications Act of 1934 and operates as an
independent U.S. government agency overseen
by Congress. The commission is committed to
being a responsive, efficient, and effective agency
capable of facing the technological and economic
opportunities of the new millennium.
Frequency Number of times a complete
electromagnetic-wave cycle occurs in a fixed unit of
time (usually one second).
General-Purpose Input/Output (GPIO)
Pins whose function is programmable.
Glossary
141
To Next Page
Loading...
Need help?
General
