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Lobe switching is a method used on early r … Lobe switching is a method used on early radar sets to improve tracking accuracy. It uses two slightly separated antenna elements to send the beam slightly to either side of the midline of the antenna. The radar signal switched between the two and produced two "blips" on the display. By comparing the lengths of the blips, the operator could find which one gave the stronger return, thereby indicating which direction the antenna should be moved to point directly at the target. The concept was used only briefly, and was almost completely replaced by conical scanning systems by the end of World War II. The concept is also infrequently referred to as sequential lobing, particularly when the signal steps between several different angles rather than just two.ral different angles rather than just two.
, Un radar à commutation des lobes, à bascul … Un radar à commutation des lobes, à basculement de diagramme ou à commutation séquentielle de faisceau, est un type de radar ancien dont le mode d'émission du faisceau permet une meilleure détermination de la position des cibles. Celle-ci est obtenue par la comparaison des signaux reçus successivement pour deux positions du diagramme de rayonnement de l'antenne, dont les directions d'axes diffèrent légèrement de celle de l'objectif; le mouvement de l'axe du diagramme peut être soit continu et périodique, soit discontinu. En émettant alternativement les faisceaux, l'opérateur peut déterminer lequel renvoie le plus fort signal et ainsi déplacer la direction de visée dans cette direction jusqu'à ce que les échos des deux faisceaux donne une somme maximale. Ce type de radar a été rapidement remplacé par le radar à balayage conique au cours de la Seconde Guerre mondiale.ue au cours de la Seconde Guerre mondiale.
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Lobe switching is a method used on early r … Lobe switching is a method used on early radar sets to improve tracking accuracy. It uses two slightly separated antenna elements to send the beam slightly to either side of the midline of the antenna. The radar signal switched between the two and produced two "blips" on the display. By comparing the lengths of the blips, the operator could find which one gave the stronger return, thereby indicating which direction the antenna should be moved to point directly at the target. The concept was used only briefly, and was almost completely replaced by conical scanning systems by the end of World War II. The concept is also infrequently referred to as sequential lobing, particularly when the signal steps between several different angles rather than just two.ral different angles rather than just two.
, Un radar à commutation des lobes, à bascul … Un radar à commutation des lobes, à basculement de diagramme ou à commutation séquentielle de faisceau, est un type de radar ancien dont le mode d'émission du faisceau permet une meilleure détermination de la position des cibles. Celle-ci est obtenue par la comparaison des signaux reçus successivement pour deux positions du diagramme de rayonnement de l'antenne, dont les directions d'axes diffèrent légèrement de celle de l'objectif; le mouvement de l'axe du diagramme peut être soit continu et périodique, soit discontinu.it continu et périodique, soit discontinu.
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Radar à commutation des lobes
, Lobe switching
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