- The following of a path of waves, such as acoustic or radio, towards their source or point of reflection. Homing may be used, for instance, as an aid in navigation, or to approach a scanned object, and may be automatic or manual, or active or passive. In marine or aeronautical navigation, a beacon is frequently used to emit the guiding or orienting signal.
- The returning to a starting position, as might occur in the case of a stepping relay.
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