Method and apparatus for fusing signals with partially known independent error components
First Claim
1. A method for producing a fused signal from a set of n>
- 1 signals, each element i, 1≦
i≦
n, of which contains information defining a vector ai representing the estimated mean state of a physical system and a covariance matrix Ai=
0 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus is described for fusing a plurality of signals corresponding to estimates of the state of an object, system, or process. The method and apparatus is specialized or programmed for (1) receiving estimates, each of which can be expressed in the form of a state vector and an error covariance matrix, at least one estimate of which can be decomposed into a sum of an independent error covariance matrix and a potentially correlated error covariance matrix, and (2) transmitting a resulting signal corresponding to an estimate, which can be expressed in the form of a state vector and an error matrix, in order to evoke a physical response from a system receiving the signal. The method and apparatus provides advantages over the prior art by improving the accuracy of fused estimates while guaranteeing consistency.
42 Citations
18 Claims
-
1. A method for producing a fused signal from a set of n>
- 1 signals, each element i, 1≦
i≦
n, of which contains information defining a vector ai representing the estimated mean state of a physical system and a covariance matrix Ai= - View Dependent Claims (4, 7, 10, 13, 16)
- 1 signals, each element i, 1≦
-
2. A computer-readable memory storing instructions for configuring a signal processing system, coupled with means for transmitting a signal and with means for obtaining a set of n>
- 1 signals containing information obtained in part from a physical measuring device, each element i, 1≦
i≦
n, of which contains information defining a vector {overscore (a)}i representing the estimated mean state of a physical system and a covariance matrix - View Dependent Claims (5, 8, 11, 14, 17)
- 1 signals containing information obtained in part from a physical measuring device, each element i, 1≦
-
3. A specialized or programmed signal processing system for producing a fused signal from a set of n>
- 1 signals encoding information obtained in part from a physical measuring device, each element i, 1≦
i≦
n, of which contains information defining a vector ai representing the estimated mean state of a physical system and a covariance matrix - View Dependent Claims (6, 9, 12, 15, 18)
- 1 signals encoding information obtained in part from a physical measuring device, each element i, 1≦
Specification