Patent ID: 8350757

Claim:
A GNSS receiver base band circuit with an acquisition unit for processing samples of a digital signal, the acquisition unit comprising: at least one preprocessor with a mixer for mixing the digital signal with a plurality of frequency signals to provide a plurality of part-compensated digital signals, at least one adder for summing up samples of each of the part-compensated digital signals separated by a length of a basic interval to provide a plurality of part-compensated data sequences and at least one memory connected to the at least one adder for storing data values of each one of the plurality of part-compensated data sequences, at least one further mixer connected to the at least one memory and configured to mix each part-compensated data sequence with at least one frequency signal to in each case provide at least one corresponding compensated data sequence, and a correlator connected to the at least one further mixer configured to determine at least one correlation value from the at least one corresponding compensated data sequence and a correlation sequence.