Sample decimation in a gnss receiver

Abstract

Embodiments of the here described set forth methods and systems for processing Global Navigation Satellite System (GNSS) signals. In one embodiment, at least one wide-band Radio Frequency (R / F) filter of a signal processing pathway is utilized to pass a plurality of signals from a plurality of satellite navigation systems as a combined signal set. The plurality of signals of the plurality of satellite navigation systems are split based upon the respective frequency of each of the plurality of signals to facilitate reducing the clock rate used to subsequently process each of the plurality of signals.

Description

technical field [0001] Embodiments according to the invention relate generally to navigation devices. Background technique [0002] Current technological trends have resulted in a reduction in the size of integrated circuits used as microprocessors, data storage devices, and the like. Another advantage of this size reduction is the reduction in energy required to operate devices employing such integrated circuits. However, the same reduction has not been achieved in other types of circuits. Thus, while the miniaturization of integrated circuits facilitates the miniaturization of devices employing integrated circuits, other circuitry in the device can limit the reduction in size of the device. This is particularly important in the field of development of mobile electronic devices. More specifically, due to the reduction in circuit size, more features can be gradually integrated into smaller devices. [0003] One feature that is increasingly being integrated into mobile el...

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Problems solved by technology

However, radio signal processing circuits have not scaled down at the same scale as digital processing circuits

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