Correlation shaping multi-signature receiver
First Claim
Patent Images
1. A receiver comprising:
- a bank of correlators for receiving a received signal that is a linear combination of a set of non-orthonormal signature signals that has undergone some distortion; and
a set of correlating signals;
whereinthe bank of correlators cross-correlates the received signal with the set of correlating signals to produce a vector output, andthe set of correlating signals is orthogonal and is determined by minimizing the least-squares error between the set of correlating signals and the set of signature signals.
1 Assignment
0 Petitions
Accused Products
Abstract
A receiver for and method of processing received signals comprising a linear combination of a plurality of signature signals having undergone some distortion. The receiver is comprised of a bank of correlators for receiving the signals, and a correlation shaper operating on a vector output from the bank of correlators. The bank of correlators may comprise a matched filter receiver or a decorrelator receiver. Optionally, a bank of detectors may operate on the vector output of the correlation shaper.
-
Citations
10 Claims
-
1. A receiver comprising:
-
a bank of correlators for receiving a received signal that is a linear combination of a set of non-orthonormal signature signals that has undergone some distortion; and a set of correlating signals;
whereinthe bank of correlators cross-correlates the received signal with the set of correlating signals to produce a vector output, and the set of correlating signals is orthogonal and is determined by minimizing the least-squares error between the set of correlating signals and the set of signature signals. - View Dependent Claims (2)
-
-
3. A receiver comprising:
-
a bank of correlators for receiving a received signal that is a linear combination of a set of non-orthonormal signature signals that has undergone some distortion; and a set of correlating signals;
whereinthe bank of correlators cross-correlates the received signal with the set of correlating signals to produce a vector output, and the set of correlating signals is orthogonal and is determined by minimizing the least-squares error between the set of correlating signals and a set of decorrelator signals vm(t) corresponding to V=S(S*S)−
1 where S is the matrix corresponding to the signature signals.
-
-
4. A receiver comprising:
-
a bank of correlators for receiving a received signal that is a linear combination of a set of signature signals that has undergone some distortion; and a set of correlating signals;
whereinthe bank of correlators cross-correlates the received signal with the set of correlating signals to produce a vector output, and the set of correlating signals is a set of geometrically uniform signals and is determined by minimizing the least-squares error between the set of correlating signals and the set of signature signals. - View Dependent Claims (5)
-
-
6. A method for processing signals in a multi-signature system comprising the steps of:
-
receiving a signal that is a linear combination of a set of non-orthonormal signature signals that has undergone some distortion; cross-correlating the received signals with a set of correlating signals; and determining the set of correlating signals by requiring the correlating signals to be orthogonal and minimizing a least-squares-error between the signature signals and the set of correlating signals. - View Dependent Claims (7)
-
-
8. A method for processing signals in a multi-signature system comprising the steps of:
-
receiving a signal that is a linear combination of a set of signature signals that has undergone some distortion; cross-correlating the received signals with a set of correlating signals; and determining the set of correlating signals by requiring the correlating signals to be geometrically uniform and minimizing a least-squares-error between the signature signals and the set of correlating signals. - View Dependent Claims (9)
-
-
10. A method for processing signals in a multi-signature system comprising the steps of:
-
receiving a signal that is a linear combination of a set of signature signals that has undergone some distortion; cross-correlating the received signals with a set of correlating signals; and determining the set of correlating signals by requiring the correlating signals to be orthogonal and minimizing a least-squares-error between the set of correlating signals and a set of decorrelator signals vm(t) corresponding to V=S(S*S)−
1 where S is the matrix corresponding to the signature signals.
-
Specification