686-2008 - IEEE Standard Radar Definitions

Standard Details

Revision of IEEE Std 686-1997. This standard is devoted to providing radar definitions. The standard includes terms formerly found in IEEE std 172-1971, IEEE Standard Definitions of Navigation Aid Terms, with the exception of a few terms that are common in both fields, and new and updated terms. IEEE std 172-1983 was withdrawn in 1983. As radar technology and literature evolve, new terms will be added and obsolete terms deleted.

Sponsor Committee	AES/RS - Radar Systems Panel
Status	Superseded
Superseded by	686-2017
Board Approval	2002-12-11
History	Published Date:2008-05-21

Additional Resources Details

PAR	Approved PAR

Working Group Details

Working Group	686_WG - Terminology Working Group
Working Group Chair	Val Werner
Sponsor Committee	AES/RS - Radar Systems Panel
Society	AES - IEEE Aerospace and Electronic Systems Society
IEEE Program Manager	Ashley Moran
Existing Standards	Superseded 521-2002 - IEEE Standard Letter Designations for Radar-Frequency Bands The Standard Letter Designations for Radar-Frequency Bands was first issued in 1976 and was written to remove the confusion that developed from the misapplication to radar of letter band designations of other microwave frequency users. This standard relates the letter terms in common usage to the frequency ranges that they represent. The 1984 revision defined the application V and W to a portion of the millimeter wave region while retaining the previous letter designators for frequencies. The current (2002) revision keeps the same letter band designations, includes a change in the definition of millimeter wave frequencies to conform to the ITU designation, and revises the notes to Table 1. Table 1 has been modified for international applications by including Regions 1 and 3 in addition to Region 2.
	Superseded 686-1982 - IEEE Standard Radar Definitions
	Inactive-Withdrawn 686-1990 - IEEE Standard Radar Definitions Definitions for the purpose of promoting clarity and consistency in the use of radar terminology are provided. The definitions represent the consensus of a panel of radar experts.
	Superseded 686-1997 - IEEE Standard Radar Definitions Definitions for the purpose of promoting clarity and consistency in the use of radar termi- nology are provided. The definitions represent the consensus of a panel of radar experts.
	Active 686-2017 - IEEE Standard for Radar Definitions The promotion of clarity and consistency in the use of radar terminology is the purpose of the definitions provided in this guide. The consensus of a panel of radar experts are represented in the definitions herein.
	Active 521-2019 - IEEE Approved Draft Standard Letter Designations for Radar-Frequency Bands The Standard Letter Designations for Radar-Frequency Bands was first issued in 1976 and was written to remove the confusion that developed from the misapplication to radar of letter band designations of other microwave frequency users. This standard relates the letter terms in common usage to the frequency ranges that they represent. The 1984 revision defined the application of the letters V and W to a portion of the millimeter wave region while retaining the previous letter designators for frequencies. The 2002 revision included a change in the definition of millimeter wave frequencies to conform to the ITU (International Telecommunication Union)designation and revised the notes to Table 1. The current (2019) revision keeps the same letter band designations but adds a "THz" band in recognition of the growing development of echolocation systems and associated technology in the region 300 GHz to 1000 GHz. Table 1 has been modified accordingly and also updated to conform to the latest ITU (2016) designations.