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- Radar_cross-section abstract "Radar cross-section (RCS) is a measure of how detectable an object is with a radar. A larger RCS indicates that an object is more easily detected.An object reflects a limited amount of radar energy. A number of different factors determine how much electromagnetic energy returns to the source such as:material of which the target is made;absolute size of the target;relative size of the target (in relation to the wavelength of the illuminating radar);the incident angle (angle at which the radar beam hits a particular portion of target which depends upon shape of target and its orientation to the radar source);reflected angle (angle at which the reflected beam leaves the part of the target hit, it depends upon incident angle);the polarization of transmitted and the received radiation in respect to the orientation of the targetWhile important in detecting targets, strength of emitter and distance are not factors that affect the calculation of a RCS because the RCS is a property of the target reflectivity.Radar cross-section is used to detect planes in a wide variation of ranges. For example, a stealth aircraft (which is designed to have low detectability) will have design features that give it a low RCS (such as absorbent paint, smooth surfaces, surfaces specifically angled to reflect signal somewhere other than towards the source), as opposed to a passenger airliner that will have a high RCS (bare metal, rounded surfaces effectively guaranteed to reflect some signal back to the source, lots of bumps like the engines, antennae, etc.). RCS is integral to the development of radar stealth technology, particularly in applications involving aircraft and ballistic missiles. RCS data for current military aircraft is most highly classified.In some cases, it is of interest to look at an area on the ground that includes many objects. In those situations, it is useful to use a related quantity called the differential scattering coefficient (also called the normalized radar cross-section or backscatter coefficient) σ0 ("sigma naught"), which is the average radar cross-section of a set of objects per unit area:where: RCSi is the radar cross-section of a particular object, and Ai is the area on the ground associated with that object.↑".
- Radar_cross-section thumbnail Sigma_invader_RCS.png?width=300.
- Radar_cross-section wikiPageExternalLink abs_all.jsp?arnumber=4685914.
- Radar_cross-section wikiPageExternalLink puma-em.
- Radar_cross-section wikiPageExternalLink ref_2-97.pdf.
- Radar_cross-section wikiPageExternalLink radar-cross-section-reduction.
- Radar_cross-section wikiPageID "740680".
- Radar_cross-section wikiPageRevisionID "599619851".
- Radar_cross-section hasPhotoCollection Radar_cross-section.
- Radar_cross-section subject Category:Radar_theory.
- Radar_cross-section comment "Radar cross-section (RCS) is a measure of how detectable an object is with a radar. A larger RCS indicates that an object is more easily detected.An object reflects a limited amount of radar energy.".
- Radar_cross-section label "RCS (aviação)".
- Radar_cross-section label "Radar cross-section".
- Radar_cross-section label "Radarquerschnitt".
- Radar_cross-section label "Sección radar equivalente".
- Radar_cross-section label "Sezione radar equivalente".
- Radar_cross-section label "Skuteczna powierzchnia odbicia".
- Radar_cross-section label "Surface équivalente radar".
- Radar_cross-section label "Эффективная площадь рассеяния".
- Radar_cross-section label "レーダー反射断面積".
- Radar_cross-section sameAs Radarquerschnitt.
- Radar_cross-section sameAs Sección_radar_equivalente.
- Radar_cross-section sameAs Surface_équivalente_radar.
- Radar_cross-section sameAs Sezione_radar_equivalente.
- Radar_cross-section sameAs レーダー反射断面積.
- Radar_cross-section sameAs 레이더_반사_면적.
- Radar_cross-section sameAs Skuteczna_powierzchnia_odbicia.
- Radar_cross-section sameAs RCS_(aviação).
- Radar_cross-section sameAs m.037cfv.
- Radar_cross-section sameAs Q560430.
- Radar_cross-section sameAs Q560430.
- Radar_cross-section wasDerivedFrom Radar_cross-section?oldid=599619851.
- Radar_cross-section depiction Sigma_invader_RCS.png.
- Radar_cross-section isPrimaryTopicOf Radar_cross-section.
