International Standard Electric Corporation

Wilhelm J Koller

Horst H Vogel

A system for correcting the time of occurrence of a triggering point along the rise time of a pulse, particularly in a DME system comprising interrogator and transponder stations. Actual received pulses which may be distorted by multipath signals or other effects are compared with stored rise time reference values to generate corrections to time correct the triggering point. The correction may be transmitted between interrogator and transponder in coded form.

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Brunswick, Germany

Wilhelm J Koller