Semi-active radar homing: Difference between revisions
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'''Semi-active radar homing (SARH)''' is a technique for | '''Semi-active radar homing (SARH)''' is a technique for guided missile]]s, usually surface-to-air missile| surface-to-air (SAM)]] or air-to-air missile| air-to-air (AAM)]]. A SARH missile has a passive radar]] guidance receiver, and expects to have an external source keep an active radar transmitter pointed at the target. | ||
The technique now tends to be used more by SAMs, especially area-coverage naval missiles. For example, the U.S. Navy's | The technique now tends to be used more by SAMs, especially area-coverage naval missiles. For example, the U.S. Navy's RIM-156 Standard SM-2]] gets general guidance from the multifunction SPY-1|AN/SPY-1]] or SPY-2|AN/SPY-2]] radar aboard an AEGIS battle management system|AEGIS]]-equipped air defense ship, but the final target illumination is done by an SPG-62|AN/SPG-62]] radar. The latter only need to point at the target for the final seconds before detonation, so the combination of radars can manage a large number of missiles and targets. | ||
SARH, while used on older AAMs such as the | SARH, while used on older AAMs such as the AIM-7 Sparrow]], is not a popular method for fighter-launched missiles, since the launching aircraft has to keep its nose radar pointed at the target during the full missile trajectory. Staying on such a course makes the launcher increasingly exposed to counterfire from its targets. | ||
Some SARH missiles do have a | Some SARH missiles do have a home-on-jam]] capability so that they will attack an enemy electronic warfare system, or have infrared guidance]] for the terminal phase of their trajectory; the detonating fuze, not infrequently, is infrared. | ||
Revision as of 16:20, 30 March 2024
| This article may be deleted soon. | ||
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 Semi-active radar homing (SARH) is a technique for guided missile]]s, usually surface-to-air missile| surface-to-air (SAM)]] or air-to-air missile| air-to-air (AAM)]]. A SARH missile has a passive radar]] guidance receiver, and expects to have an external source keep an active radar transmitter pointed at the target. The technique now tends to be used more by SAMs, especially area-coverage naval missiles. For example, the U.S. Navy's RIM-156 Standard SM-2]] gets general guidance from the multifunction SPY-1|AN/SPY-1]] or SPY-2|AN/SPY-2]] radar aboard an AEGIS battle management system|AEGIS]]-equipped air defense ship, but the final target illumination is done by an SPG-62|AN/SPG-62]] radar. The latter only need to point at the target for the final seconds before detonation, so the combination of radars can manage a large number of missiles and targets. SARH, while used on older AAMs such as the AIM-7 Sparrow]], is not a popular method for fighter-launched missiles, since the launching aircraft has to keep its nose radar pointed at the target during the full missile trajectory. Staying on such a course makes the launcher increasingly exposed to counterfire from its targets. Some SARH missiles do have a home-on-jam]] capability so that they will attack an enemy electronic warfare system, or have infrared guidance]] for the terminal phase of their trajectory; the detonating fuze, not infrequently, is infrared. |
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