초록 ▼

A location system for identifying locations of emitters in a cellular telephone service area. Searching identifies active emitters in the service area to find the coarse areas in which active emitters are located, using selection criteria to designate one or more of the active emitters as selected e

A location system for identifying locations of emitters in a cellular telephone service area. Searching identifies active emitters in the service area to find the coarse areas in which active emitters are located, using selection criteria to designate one or more of the active emitters as selected emitters. Emitter signals are measured with a plurality of sensors, each sensor at a different location. Groups of the sensors are tasked, one group of tasked sensors for each corresponding selected emitter. Each tasked sensor takes a measurement on an emitter signal transmitted by the corresponding selected emitter. The measurements are processed to determine the location of each selected emitter based on the measurements from the group of tasked sensors.

대표청구항 ▼

[ We claim:] [1.] A location system for identifying locations of emitters in a service area where the service area is divided into coarse areas, the location system comprising:searching means for identifying only active emitters transmitting emitter signals at a present time in the service area,find

[ We claim:] [1.] A location system for identifying locations of emitters in a service area where the service area is divided into coarse areas, the location system comprising:searching means for identifying only active emitters transmitting emitter signals at a present time in the service area,finding means for determining the coarse areas in which selected ones of the active emitters are located at the present time, each selected active emitter in a corresponding one of said coarse areas,selecting means using selection criteria for designating one or more of the active emitters as selected emitters, the selection criteria including a search list for designating particular ones of the active emitters in a service area for locating, the searching means operable to forward the identities of each active emitter to the selecting means for comparison against entries stored in the search list,a plurality of sensors, each sensor at a different location and each sensor including measurement means for taking measurements on emitter signals,tasking means for tasking groups of said sensors, one group of tasked sensors for each corresponding selected emitter, where tasked sensors for a particular group are chosen from said plurality of sensors, each tasked sensor of the particular group taking a measurement on an emitter signal transmitted by the corresponding selected emitter, andprocessing means for determining the location of each selected emitter based on the measurements from the group of tasked sensors for the corresponding selected emitter.