Personal communication system geographical test data correlation
First Claim
1. A method for correlating test data taken during two drives through the coverage area of a personal communication system, wherein the data from the first test set includes a sequence of locations along a first drive and the data from the second test set includes a sequence of locations along a second drive, and wherein a location from the first set is correlated with a location from the second set when the location from the second set lies within a correlation distance of the location from the first set, the method comprising:
- obtaining the correlation distance;
determining the search point as the first location of the first set;
determining a possible first correlated location from the first set and a corresponding first correlated location from the second set using the search point, the correlation distance, and a search radius if no correlated data has yet been found;
otherwise, if a correlated location has been found, determining a possible next correlated location from the first set and a corresponding next correlated location from the second set using the search point, the correlation distance, the correlated location from the second set that was most recently found, and a search number; and
determining the next search point as the next location of the first set and repeating the step of determining a possible correlated location from the first set and a corresponding correlated location from the second set.
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Accused Products
Abstract
A method for correlating data taken during two test drives through the coverage area of a personal communication system, the data from each test set including a sequence of locations along a drive, a location from the first set being correlated with a location from the second set when the location from the second set is within a correlation distance from the location from the first set, the method including determining the correlation distance; setting the search point as a location in first set; determining a possible first correlated location from the first set and a corresponding first correlated location from the second set using the search point, the correlation distance, and a search radius if no correlated data has yet been found; otherwise determining a possible next correlated location from the first set and a corresponding next correlated location from the second set using the search point, the correlation distance, the correlated location from the second set that was most recently found, and a search number. The effects of data taken during slow or halted movement are reduced by averaging or discounting locations. The effects of changing environmental variables may be reduced by determining at least one data variable that should have remained constant between data for correlated locations and, for each geographically correlated pair, determining any difference between data values for one of these variables, and compensating data from the correlated pair using the determined difference.
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Citations
16 Claims
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1. A method for correlating test data taken during two drives through the coverage area of a personal communication system, wherein the data from the first test set includes a sequence of locations along a first drive and the data from the second test set includes a sequence of locations along a second drive, and wherein a location from the first set is correlated with a location from the second set when the location from the second set lies within a correlation distance of the location from the first set, the method comprising:
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obtaining the correlation distance; determining the search point as the first location of the first set; determining a possible first correlated location from the first set and a corresponding first correlated location from the second set using the search point, the correlation distance, and a search radius if no correlated data has yet been found; otherwise, if a correlated location has been found, determining a possible next correlated location from the first set and a corresponding next correlated location from the second set using the search point, the correlation distance, the correlated location from the second set that was most recently found, and a search number; and determining the next search point as the next location of the first set and repeating the step of determining a possible correlated location from the first set and a corresponding correlated location from the second set. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for correlating geographic data from two sets, wherein a first set contains data taken at a sequence of locations along a first path and a second set contains data taken at a sequence of locations along a second path, and wherein locations within each sequence are numbered with integers in the order in which the data was collected as the corresponding path was traversed, the method comprising:
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obtaining a correlation distance; determining a first correlated location in the first set and a corresponding first correlated location of the second set such that the first correlated location in the second set is within the correlation distance of the first correlated location in the first set; selecting as a search point the location following the first correlated location in the first set; forming a correlation set from the second set based on the sequence number of the most recently determined correlated location in the second set and a search number; determining as the next correlated location in the first set the search point if any location in the correlation set is within the correlation distance of the search point; determining the corresponding correlated location in the second set if any location in the correlation set is within the correlation distance of the search point; and selecting as the next search point the location following the current search point and repeating the steps of forming a correlation set, determining the next correlated location in the first set, and determining the corresponding correlated location in the second set, until no locations remain in the first set. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification