Multiple truth reference system and method
First Claim
1. A system comprising:
- a plurality of reference navigation systems, each reference navigation system configured to generate a respective reference navigation solution;
a test navigation system, the test navigation system configured to generate a test navigation solution; and
a processing unit configured to compare the test navigation solution to each of the respective reference navigation solutions to estimate one or more errors in the differences between the test navigation solution and the respective reference navigation solutions;
wherein the processing unit is further configured to update the respective reference navigation solutions to account for the corresponding one or more estimated errors;
wherein the processing unit is configured to compare the test navigation solution to the updated reference navigation solutions to generate a performance score representative of the performance of the test navigation system.
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Abstract
A system comprises a plurality of reference navigation systems, each reference navigation system configured to generate a respective reference navigation solution. The system also comprises a test navigation system, the test navigation system configured to generate a test navigation solution; and a processing unit configured to compare the test navigation solution to each of the respective reference navigation solutions to estimate one or more errors in the differences between the test navigation solution and the respective reference navigation solutions. The processing unit is further configured to update the respective reference navigation solutions to account for the corresponding one or more estimated errors. The processing unit is also configured to compare the test navigation solution to the updated reference navigation solutions to generate a performance score representative of the performance of the test navigation system.
21 Citations
20 Claims
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1. A system comprising:
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a plurality of reference navigation systems, each reference navigation system configured to generate a respective reference navigation solution; a test navigation system, the test navigation system configured to generate a test navigation solution; and a processing unit configured to compare the test navigation solution to each of the respective reference navigation solutions to estimate one or more errors in the differences between the test navigation solution and the respective reference navigation solutions; wherein the processing unit is further configured to update the respective reference navigation solutions to account for the corresponding one or more estimated errors; wherein the processing unit is configured to compare the test navigation solution to the updated reference navigation solutions to generate a performance score representative of the performance of the test navigation system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A program product comprising a non-transitory processor-readable medium on which program instructions are embodied, wherein the program instructions are configured, when executed by at least one programmable processor, to cause the at least one programmable processor to:
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compare a first navigation solution received from a first navigation system with a plurality of other navigation solutions, each of the other navigation solutions received from a respective other navigation system; estimate one or more errors based on the comparison of the first navigation solution to the plurality of other navigation solutions; modify the plurality of other navigation solutions based on the estimated one or more errors; compare the first navigation solution to the plurality of modified other navigation solutions to generate a performance score of the first navigation system; and output the performance score to an output device. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method of assessing performance of a test navigation system in a reference system having a plurality of reference navigation systems, the method comprising:
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receiving a respective navigation solution from each of a plurality of navigation systems, a first navigation system of the plurality of navigation systems selected as the test navigation system and the other navigation systems of the plurality of navigation systems selected as the reference navigation systems, the plurality of navigation systems comprising more than three navigation systems; comparing the navigation solution from the selected test navigation system with the respective navigation solution from each of the plurality of reference navigation systems to identify one or more errors in differences between the navigation solution from the selected test navigation system and the respective navigation solution from each of the plurality of reference navigation systems; updating the respective navigation solution from each of the plurality of reference navigation systems to adjust for corresponding errors identified by comparing the navigation solution from the selected test navigation system with the respective navigation solution from each of the plurality of reference navigation systems; and comparing the navigation solution from the selected test navigation system with the updated navigation solutions from each of the plurality of reference navigation systems to generate a performance score indicative of the performance of the test navigation system. - View Dependent Claims (17, 18, 19, 20)
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Specification