Patent ID: 8059699
Filing Date: 2011-11-15
Classification: G01S,H04W,Y02D

Abstract:
1. A low power consumption GNSS receiver receiving a plurality of signals from a plurality of channels, the GNSS receiver comprising: a correlator, performing correlations to the signals from the channels with a correlator clock frequency; and a DSP, controlling the correlator clock frequency according to a correlator load to perform correlations; calculating and adjusting code phases and Doppler frequencies for the signals from the channels in turn with a DSP clock frequency; controlling the DSP clock frequency according to an accumulated throughput of calculation and adjustment for the code phase and the Doppler frequencies; raising the DSP clock frequency if the accumulated throughput lags behind a ratio of a predeteremined channel number to a number of total channels after calculating and adjusting for the signals from the channels of the predetermined number.