ISO 20930:2018 PDF

Name: ISO 20930:2018 — Space systems — Calibration requirements for satellite-based passive microwave sensors
SKU: ISO 20930:2018
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Space systems — Calibration requirements for satellite-based passive microwave sensors

Название (английский):

ISO 20930:2018

Space systems — Calibration requirements for satellite-based passive microwave sensors

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 26
Дата публикации:: 25 июля 2018 г.
Издание:: ISO IS 20930 edition 1 version 1
ICS:: 49.140

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Описание (английский):

This document defines the requirements and verification methods from design to on-orbit operation for Satellite Based Passive Microwave Sensors. This document covers the requirements for, design, analysis, manufacturing, ground tests and on-orbit self-sensor calibration and validation. In addition, this document includes the conditions considered for on-orbit inter-comparison among sensors as preparation for cross-calibration. This document includes some examples on how to apply the development of passive microwave sensors as shown in Annex A through D.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 20930:2018 - Space systems - Calibration requirements for satellite-based passive microwave sensors - defines end-to-end calibration requirements and verification methods for passive microwave instruments from design and manufacturing through ground testing and on‑orbit operation. It applies to microwave radiometers and sounders (typical bands ~1 GHz to 200 GHz) and standardizes procedures to reduce inter-sensor bias and improve the radiometric quality of antenna brightness temperature products used for weather, hydrology and climate applications.

Key topics and technical requirements

Scope and objectives

Requirements cover sensor design, analysis, manufacturing, ground tests, on-orbit self-calibration and validation.
Includes procedures for on-orbit inter-comparison and preparation for cross-calibration.

Instrument components addressed

Cold Calibration Target (CCT), Warm Calibration Target (WCT), Main Reflector (MR), Receiver (Rx), Noise Calibration Source (NCS), Antenna sub-system (ANT), and Data Processor (DP).

Pre‑launch (design & ground test)

Precise specification and verification of instrument characteristics; submission of engineering formulas/parameters to ground processing.
Requirements for CCT/WCT design (reflectivity, emissivity, spill‑over patterns), antenna pattern measurement/modelling and uncertainty budgeting for antenna brightness temperature (Tb).

On‑orbit calibration

Self‑calibration strategies using WCT/CCT and procedures to eliminate bias, characterize sensitivity, perform deep‑space manoeuvres and maintain radiometric resolution.
Validation methods including use of Standard Reference Targets (SRT) and ground‑based ancillary data (see informative Annexes A–D).

Processing and data quality

Level‑one processing requirements to convert raw measurements to radiometrically and geometrically compensated Tb products.
Emphasis on minimizing bias (e.g., sub‑Kelvin accuracy targets relevant to climate and sea surface temperature monitoring).

Practical applications and users

ISO 20930:2018 is intended for:

Satellite system and payload engineers responsible for design, verification and manufacturing of passive microwave sensors.

Calibration and ground processing teams who implement radiometric correction, uncertainty budgets and Level‑1 processing.

Mission managers, agencies and satellite operators coordinating cross‑calibration and inter‑satellite consistency.

Remote sensing analysts, meteorologists, hydrologists and climate scientists who rely on consistent microwave observations for soil moisture, precipitation, snow cover, sea ice and atmospheric profiling.

Practical benefits include improved weather‑forecast inputs, more accurate sea surface temperature and soil moisture products, and reduced effort in post‑processing bias compensation.

ISO 20930:2018 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Practical applications and users

Related standards

Технические детали

ISO 10795:2011

Space systems — Programme management and quality — Vocabulary

26/30495229 DC

BS ISO 20930 Space systems — Calibration requirements for satellite based passive microwave sensors

BS ISO 14302:2022-TC

Tracked Changes. Space systems. Electromagnetic compatibility requirements.