Cross-correlation detection and elimination in a receiver
First Claim
Patent Images
1. A device, comprising:
- a receiver capable of receipt of a signal that contains more than one pseudo noise (PN) coded signal component;
a memory coupled to the receiver that stores a plurality of off-peak energy values associated with a PN; and
a controller coupled to the memory that identifies a sub-set of off-peak energy values are off-peak energy values in order to identify auto-correlation and cross-correlation using the off-peak energy values, and if inconclusive the controller calculates an average of off-peak energy values to identify auto-correlation and cross correlation, where a maximum off-peak energy value from the plurality of off-peak energy values is identified and compared to a predetermined threshold in order to identify auto-correlation.
2 Assignments
0 Petitions
Accused Products
Abstract
A communication device with cross-correlation detection based upon statistical tests to determine whether the off-peak signal energy is consistent with auto-correlation energy levels.
124 Citations
18 Claims
-
1. A device, comprising:
-
a receiver capable of receipt of a signal that contains more than one pseudo noise (PN) coded signal component; a memory coupled to the receiver that stores a plurality of off-peak energy values associated with a PN; and a controller coupled to the memory that identifies a sub-set of off-peak energy values are off-peak energy values in order to identify auto-correlation and cross-correlation using the off-peak energy values, and if inconclusive the controller calculates an average of off-peak energy values to identify auto-correlation and cross correlation, where a maximum off-peak energy value from the plurality of off-peak energy values is identified and compared to a predetermined threshold in order to identify auto-correlation. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A method for determining auto-correlation or cross correlation of a signal, comprising:
-
receiving a signal from a receiver that contains more than one pseudo noise (PN) coded signal component; storing in a memory coupled to the receiver a plurality of off-peak energy values associated with a PN; and retrieving a sub-set of off-peak energy values with a controller that is coupled to the memory that are off-peak energy values in order to identify auto-correlation and cross-correlation using the oft-peak energy values, with identifying where a maximum off-peak energy value from the plurality of off-peak energy values; and comparing the maximum off-peak energy value to a predetermined threshold in order to identify auto-correlation; and if inconclusive the controller calculates an average of off-peak energy values to identity auto-correlation and cross-correlation. - View Dependent Claims (8, 9, 10, 11, 12)
-
-
13. A device for determining auto-correlation or cross correlation of a signal, comprising:
-
means for receiving the signal that contains more than one pseudo noise (PN) coded signal component; means for storing a plurality of off-peak energy values associated with a PN; and means for retrieving a sub-set of off-peak energy values that are off-peak energy values in order to identify auto-correlation and cross-correlation using the off-peak energy values with means for identifying where a maximum off-peak energy value from the plurality of off-peak energy values; and means for comparing the maximum off-peak energy value to a predetermined threshold in order to identify auto-correlation; and if inconclusive the controller calculates an average of off-peak energy values to identify auto-correlation and cross-correlation. - View Dependent Claims (14, 15, 16, 17, 18)
-
Specification