DWM3000 Datasheet

© Qorvo 2020

Preliminary

Version 0.1

Page 22

Table 11: Glossary of Terms

Abbreviation

Full Title

Explanation

EIRP

Equivalent

Isotropically

Radiated Power

The amount of power that a theoretical isotropic antenna (which evenly distributes

power in all directions) would emit to produce the peak power density observed in the

direction of maximum gain of the antenna being used.

ETSI

European

Telecommunication

Standards Institute

Regulatory body in the EU charged with the management of the radio spectrum and

the setting of regulations for devices that use it.

FCC

Federal

Communications

Commission

Regulatory body in the USA charged with the management of the radio spectrum and

the setting of regulations for devices that use it.

GPIO

General Purpose

Input / Output

Pin of an IC that can be configured as an input or output under software control and

has no specifically identified function.

IEEE

Institute of Electrical

and Electronic

Engineers

Is the world’s largest technical professional society. It is designed to serve

professionals involved in all aspects of the electrical, electronic and computing fields

and related areas of science and technology.

PLL

Phase Locked Loop

Circuit designed to generate a signal at a particular frequency whose phase is related

to an incoming “reference” signal.

PPM

Parts Per Million

Used to quantify very small relative proportions. Just as 1% is one out of a hundred,

1 ppm is one part in a million.

RF

Radio Frequency

Generally used to refer to signals in the range of 3 kHz to 300 GHz. In the context of

a radio receiver, the term is generally used to refer to circuits in a receiver before

down-conversion takes place and in a transmitter after up-conversion takes place.

RTLS

Real Time Location

System

System intended to provide information on the location of various items in real-time.

SFD

Start of Frame

Delimiter

Defined in the context of the IEEE 802.15.4-2011 standard.

SPI

Serial Peripheral

Interface

An industry standard method for interfacing between IC’s using a synchronous serial

scheme first introduced by Motorola.

TCXO

Temperature

Controlled Crystal

Oscillator

A crystal oscillator whose output frequency is very accurately maintained at its

specified value over its specified temperature range of operation.

TWR

Two Way Ranging

Method of measuring the physical distance between two radio units by exchanging

messages between the units and noting the times of transmission and reception.

Refer to Decawave’s website for further information.

TDoA

Time Difference of

Arrival

Method of deriving information on the location of a transmitter. The time of arrival of a

transmission at two physically different locations whose clocks are synchronized is

noted and the difference in the arrival times provides information on the location of

the transmitter. A number of such TDoA measurements at different locations can be

used to uniquely determine the position of the transmitter. Refer to Decawave’s

website for further information.

UWB

Ultra Wideband

A radio scheme employing channel bandwidths of, or in excess of, 500 MHz.

WSN

Wireless Sensor

Network

A network of wireless nodes intended to enable the monitoring and control of the

physical environment.