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Semi-active radar homing (SARH) is a common type of missile guidance system, perhaps the most common type for longer-range air-to-air and surface-to-air missile systems. The name refers to the fact that the missile itself is only a passive detector of a radar signal—provided by an external ("offboard") source—as it reflects off the target [1] [2] (in contrast to active radar homing, which ...
Homing (biology) A homing pigeon. These have been selectively bred to home over long distances. Homing is the inherent ability of an animal to navigate towards an original location through unfamiliar areas. This location may be either a home territory, or a breeding spot.
Homing (biology), the inherent ability of an animal to navigate towards an original location through unfamiliar areas. Homing pigeon, a variety of domestic pigeon bred to find its way home over extremely long distances. Homing beacon, sometimes homer, a beacon that transmits a signal to be homed on.
Retransmission homing, also called "track-via-missile" or "TVM", is a hybrid between command guidance, semi-active radar homing and active radar homing. The missile picks up radiation broadcast by the tracking radar which bounces off the target and relays it to the tracking station, which relays commands back to the missile.
Lymphocyte homing is a key process occurring in a strong immune system. It controls the process of circulating lymphocytes adhering to particular regions and organs of the body. [ 22 ] The process is highly regulated by cell adhesion molecules, particularly, the addressin also known as MADCAM1.
Homing is the phenomenon whereby cells migrate to the organ of their origin. By homing, transplanted hematopoietic cells are able to travel to and engraft (establish residence) in the bone marrow . Various chemokines [ 1 ] and receptors [ 2 ] are involved in the homing of hematopoietic stem cells .
An inverse monopulse seeker is a type of semi-active radar homing that offers significant advantages over earlier designs. The system requires electronics that can compare three signals at once, so this design did not become practically possible until the early 1970s. One of the first such examples was the Soviet Union R-40 air-to-air missiles ...
Infrared homing is a passive weapon guidance system which uses the infrared (IR) light emission from a target to track and follow it seamlessly. [1] Missiles which use infrared seeking are often referred to as "heat-seekers" since infrared is radiated strongly by hot bodies. Many objects such as people, vehicle engines and aircraft generate and ...