US 2023/0408704 A1 · METHOD AND APPARATUS FOR PERFORMING PILOT DETECTION BY JOINTLY CONSIDERING CORRELERATION RESULTS THAT ARE GENERATED FOR DIFFERENT SATELLITE SIGNALS

Abstract

A joint pilot detection method includes: obtaining a plurality of input signals that are derived from a plurality of satellite signals transmitted from a plurality of global navigation satellite system (GNSS) satellites, respectively, wherein each of the plurality of satellite signals carries a pilot component modulated by a secondary code; obtaining a plurality of code sequences that are replicas of secondary codes of the plurality of satellites, respectively; performing a plurality of correlation operations according to the plurality of input signals and the plurality of code sequences, for generating a plurality of correlation results, respectively; and performing pilot detection by jointly considering the plurality of correlation results.

Claims20

Dependent claims

A joint pilot detection method comprising:

obtaining a plurality of input signals that are derived from a plurality of satellite signals transmitted from a plurality of global navigation satellite system (GNSS) satellites, respectively, wherein each of the plurality of satellite signals carries a pilot component modulated by a secondary code;
obtaining a plurality of code sequences that are replicas of secondary codes of the plurality of satellites, respectively;
performing a plurality of correlation operations according to the plurality of input signals and the plurality of code sequences, for generating a plurality of correlation results, respectively;
and
performing pilot detection by jointly considering the plurality of correlation results.

2 more elements

A joint pilot detection apparatus comprising:

a correlation circuit, arranged to:
obtain a plurality of input signals that are derived from a plurality of satellite signals transmitted from a plurality of global navigation satellite system (GNSS) satellites, respectively, wherein each of the plurality of satellite signals carries a pilot component modulated by a secondary code;
obtain a plurality of code sequences that are replicas of secondary codes of the plurality of satellites, respectively;
and
perform a plurality of correlation operations according to the plurality of input signals and the plurality of code sequences, for generating a plurality of correlation results, respectively;
and
a joint pilot detection circuit, arranged to perform pilot detection by jointly considering the plurality of correlation results.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

18/208,869Filed 12 Jun 2023

Priority

15 Jun 2022

Published

21 Dec 2023

Term ends

Not estimatedThe source records don’t support an estimate.

Classification4 codes

G01S 19/30
Acquisition or tracking or demodulation of signals transmitted by the system: code related
G01S 19/256
Involving aiding data received from a cooperating element, e.g. assisted GPS: relating to timing, e.g. time of week, code phase, timing offset
G01S 19/33
Receivers: multimode operation in different systems which transmit time stamped messages, e.g. GPS/GLONASS
G01S
Radio direction-finding

Method and apparatus for performing pilot detection by jointly considering correleration results that are generated for different satellite signals

Life of this patent

Method and apparatus for performing pilot detection by jointly considering correleration results that are generated for different satellite signals

Life of this patent

Abstract

Claims20