Correlation device and method
AssigneeMediatek Inc.
InventorKun-tso Chen
Life of this patent
Estimating the term…
Abstract
A correlation device and method is provided. According to the present invention, the correlation device comprises a first signal path for receiving a received signal; at least one second signal path for receiving the received signal and eliminating effect of a subcarrier component of the received signal; and a correlation unit couple to the first signal path and each second signal path, for selecting an output of one of the first and second signal paths to execute signal correlation.
Claims20
A correlation device comprising:
- a first signal path for receiving a received signal;
- at least one second signal path for receiving the received signal and eliminating effect of a subcarrier component of the received signal;
- and
- a correlation unit coupled to the first signal path and each second signal path, for selecting an output of one of the first and second signal paths to execute signal correlation for a round;
- a combing unit coupled to the correlation unit, for combing the correlation results of respective rounds after a plurality of the rounds;
- wherein the respective rounds are executed at the same time.
A correlation method comprising steps of
- (a) receiving a signal;
- (b) eliminating effect of a subcarrier component of the received signal to generate a second signal;
- (c) selecting to pass one of the received signal;
- (d) executing correlation to the selected signal
- (e) repeating all of the steps (a) to (d) for a plurality of rounds;
- and
- (f) combining the correlation results of the respective rounds of the steps;
- wherein the respective rounds are executed at the same time.
A correlation method for a GNSS receiver, comprising steps of
- (a) receiving a signal;
- (b) transferring the received signal into a transferred signal with a first modulation form;
- (c) selecting to pass one of the received signal and the transferred signal by a selection device according to a control signal;
- (d) executing correlation to the selected signal by a common correlation unit;
- (e) repeating all of the steps (a) to (d) for a plurality of rounds;
- and
- (f) combining the correlation results of the respective rounds of the steps;
- wherein the respective rounds are executed at the same time.
A correlation method for a GNSS receiver, comprising steps of
- (a) receiving a signal and down sampling the received signal;
- (b) transferring the received signal into a transferred signal with a first modulation form and down sampling the transferred signal;
- (c) selecting to pass one of the down sampled received signal and the down sampled transferred signal according to a control signal;
- (d) executing correlation to the selected signal by a common correlation unit.
Dependencies are inferred from the claim text.