Window based locationing of mobile targets using complementary position estimates

At least one non-transitory computer storage medium encoded with a computer program product comprising instructions that, when executed by one or more systems comprising one or more computers, cause the one or more systems to perform operations comprising:

• receiving, by a tracking system, a respective sequence of locationing signals from each of multiple sources of different respective locationing signal source types comprising a satellite signal source type, a dead-reckoning signal source type, and a terrestrial wireless communication signal source type;
• processing the multiple sequences of locationing signals of different locationing signal source types to obtain position estimates for the mobile target;
• determining respective scores for respective map-defined paths based on respective comparisons between the position estimates obtained for the mobile target and locations on the respective map-defined paths;
• and
• selecting a map-defined path as the geographic path most likely navigated by the mobile target based on the respective scores determined for the map-defined paths.

At least one system comprising one or more computers and one or more storage devices storing instructions that, when executed by the one or more computers, cause the at least one system to perform operations comprising:

• receiving a respective sequence of locationing signals from each of multiple sources of different respective locationing signal source types comprising a satellite signal source type, a dead-reckoning signal source type, and a terrestrial wireless communication signal source type;
• processing the multiple sequences of locationing signals of different locationing signal source types to obtain position estimates for the mobile target;
• determining respective scores for respective map-defined paths based on respective comparisons between the position estimates obtained for the mobile target and locations on the respective map-defined paths;
• and
• selecting a map-defined path as the geographic path most likely navigated by the mobile target based on the respective scores determined for the map-defined paths.

A method performed by one or more systems comprising one or more processors executing one or more program instructions encoded in one or more non-transitory structures to identify a geographic path navigated by a mobile target, the method comprising:

• receiving, by a tracking system, a respective sequence of locationing signals from each of multiple sources of different respective locationing signal source types comprising a satellite signal source type, a dead-reckoning signal source type, and a terrestrial wireless communication signal source type;
• processing the multiple sequences of locationing signals of different locationing signal source types to obtain position estimates for the mobile target;
• mapping respective ones of the position estimates to edges corresponding to respective road segments defined in a geographic database;
• for each of one or more intervals, selecting a respective one of the edges based on a proportion of the position estimates in the interval that are mapped to the respective edge, and ascertaining a respective location of the mobile target on the selected edge based on the mapped locations of the position estimates on the selected edge.