"Radar frequency agility" (6) means any technique which changes, in a pseudo-random sequence, the carrier frequency of a pulsed radar transmitter between pulses or between groups of pulses by an amount equal to or larger than the pulse bandwidth. "Radar spread spectrum" (6) means any modulation technique for spreading energy originating from a signal with a relatively narrow frequency band, over a much wider band of frequencies, by using random or pseudo-random coding.
Gerbeurs définis comme des systèmes manipulateurs fonctionnant en coordonnées cartésiennes, fabriqués en tant que parties intégrantes d'un ensemble vertical de casiers de stockage et conçus pour l'accès à ces casiers en vue du stockage et du déstockage.