A localizer type directional aid (LDA) or Instrument Guidance System (IGS) is a type of localizer-based instrument approach to an airport. It is used...

An instrument landing system localizer, or simply localizer (LOC, or LLZ prior to 2007), is a system of horizontal guidance in the instrument landing system...

approaches include a localizer approach, localizer/DME approach, localizer back course approach, and a localizer-type directional aid (LDA). In cases where...

approach course similar to instrument landing system (ILS) and localizer type directional aid (LDA) approaches, although not as precise. The SDF signal is...

called a localizer back course. This lets aircraft land using the signal transmitted from the back of the localizer array. Highly directional antennas...

LDA may refer to: Localizer type directional aid, an instrument approach to an airport Landing distance available, the length of runway that is available...

Guidance System) was effectively a localizer type directional aid, which was offset from the runway heading by 47°, which aided aircraft by guiding them via...

difficult for the hearing aid processor to distinguish the speech from the noise. Despite the disadvantages, adaptive directional microphones can provide...

Malibu (PA46), registered as N1AM, crashed while flying the LDA (localizer type directional aid) approach into CCR. The aircraft was too low and hit obstructions...

with stable directional information, indicate that a new directional analysis is possible. (see Franssen effect) This kind of sound localization technique...