Signal processing method for a GPS receiver
AssigneePioneer Electronic Corporation
InventorKenichiro Kawasaki
Life of this patent
Estimating the term…
Abstract
A method for searching a carrier frequency and code phase of a signal received by a GPS receiver. The method includes steps of: quantizing the received signal; sampling the quantized signal at a first speed by a carrier frequency generated in the receiver; storing the samples in memory at a first speed; reading the samples from memory at a second speed; and determining the correlation between a code of the carrier frequency generated in the receiver and the received signal. The second speed is faster than the first speed.
Claims2
A method for searching a carrier frequency and code phase of a signal received by a GPS receiver, comprising steps of:
- quantizing the received signal;
- sampling the quantized signal at a first speed by a carrier frequency generated in the receiver;
- storing the samples in a memory at said first speed;
- reading the samples from the memory at a second speed faster than said first speed;
- and
- determining a correlation between a code of the received signal from the samples read from the memory and a code generated in the receiver.
Dependencies are inferred from the claim text.