Apparatus and method of making pulse-shape measurements and...

H - Electricity – 03 – L

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H03L 7/06 (2006.01) H04B 1/16 (2006.01) H04B 1/69 (2006.01)

Patent

CA 2622484

A receiver for position-determining ranging signals transmitted by earth- orbiting satellites uses a set of accumulators, each of which accumulates signal samples corresponding with a position along the rising edges of incoming PRN pulses. An MMT processor calculates the rising edges of the direct path component of the received signal, selects the accumulator whose content correspond to a reference value related to the pulse height of the direct path component and compares the timing of the samples in that accumulator with the timing of the reference value on a reference pulse.

L'invention concerne un récepteur permettant de déterminer la position de signaux de mesure de distance transmis par des satellites en orbite terrestre à l'aide d'un ensemble d'accumulateurs, accumulant chacun des échantillons de signaux correspondant à une position le long des fronts montants des impulsions PRN entrantes. Un processeur MMT calcule les fronts montants de la composante de trajectoire directe du signal reçu, sélectionne l'accumulateur dont le contenu correspond à une valeur de référence associée à la hauteur d'impulsion de la composante de trajectoire directe, et compare la synchronisation des échantillons dans cet accumulateur et la synchronisation de la valeur de référence sur une impulsion de référence.

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