ISO 24245:2023 宇宙システム — 全地球航法衛星システム (GNSS) 受信機のクラス コード | ページ 6

3.1

receiver

device (3.2) with associated antenna or including an antenna, used to select the desired radio-frequency signals from the incident radio-frequency radiation, to amplify them, demodulate them and if necessary, convert the recovered signals into a directly usable form

[SOURCE:IEC 60050-713:1998, 713-10-02, Modified — “such as sounds or pictures” has been deleted at the end of the definition.]

3.2

device

material element or assembly of such elements intended to perform a required function

Note 1 to entry: A device may form part of a larger device.

[SOURCE:IEC 60050-151:2001, 151-11-20]

3.3

GNSS receiver

receiver (3.1) to determine the user position, velocity, and/or precise time by processing the signals broadcasted by radionavigation (3.6) satellites

3.4

radiodetermination

determination of the position, velocity and/or other characteristics of an object, of the obtaining of information relating to these characteristics, by means of radio waves

[SOURCE:IEC 60050-725:1994, 725-12-48]

3.5

satellite radiodetermination

radiodetermination (3.4) which makes use of a satellite system

[SOURCE:IEC 60050-725:1994, 725-12-49]

3.6

radionavigation

radiodetermination (3.4) used for the purpose of navigation, including obstruction warning

[SOURCE:IEC 60050-725:1994, 725-12-50]

3.7

satellite radionavigation

satellite radiodetermination (3.5) used for radionavigation (3.6)

[SOURCE:IEC 60050-725:1994, 725-12-51]

3.8

code-based positioning

positioning based on code-phase measurement without integer ambiguity resolution

Note 1 to entry: A code-based positioning receiver (3.1) may be equipped with the carrier-smoothing function.

3.9

phase-range

range measured by using carrier-phase with integer ambiguity resolution

Note 1 to entry: See RTCM standard 10403.3, 3.5.

3.10

state space

space defined by the state variables as axes of a vector space, in which every vector represents a state of the system

[SOURCE:IEC 60050-351:2013, 351-41-09]

3.11

observation space

space defined by the observation variables as axes of a vector space, in which every vector represents a observation variable of the system

3.12

SSR

state space representation

representation of a valuable in a state space (3.10)

Note 1 to entry: See RTCM standard 10403.3, 3.5.13.

Note 2 to entry: SSR is a mathematically orthogonal representation of parameters.

3.13

OSR

observation space representation

representation of a valuable in an observation space (3.11)

Note 1 to entry: See RTCM standard 10403.3, 3.5.13.

3.14

GNSS authentication

function to authenticate the signal from GNSS