Method and system for processing positioning signals based on predetermined message data segment
First Claim
Patent Images
1. A method for determining a geolocation of an object, comprising:
- collecting a plurality of positioning signals each including a predetermined message data segment;
identifying the predetermined message data segment in each of the plurality of positioning signals, the predetermined message data segment being identical in each positioning signal and transmitted within each positioning signal at an identical moment in time;
determining a time of arrival of the predetermined message data segment upon identification in each of the collected positioning signals;
determining a time difference between at least two of the collected positioning signals based on the respective times of arrival of the respective predetermined message data segments;
providing information based on the time difference for determination of a geolocation of the object;
wherein the positioning signals include global positioning system (GPS) positioning signals, the method further comprising compensating for carrier frequency offset (CFO) of the satellites prior to determining the time of arrival.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and system for determining a geolocation of an object includes collecting a positioning signal including a predetermined message data segment. A time of arrival of the predetermined message data segment may be determined in the positioning signal. Information based on the time of arrival may be provided for determination of a geolocation of an object. The time of arrival of the predetermined message data segment may be determined based on a time search for the predetermined message data segment in the positioning signal.
-
Citations
20 Claims
-
1. A method for determining a geolocation of an object, comprising:
-
collecting a plurality of positioning signals each including a predetermined message data segment; identifying the predetermined message data segment in each of the plurality of positioning signals, the predetermined message data segment being identical in each positioning signal and transmitted within each positioning signal at an identical moment in time; determining a time of arrival of the predetermined message data segment upon identification in each of the collected positioning signals; determining a time difference between at least two of the collected positioning signals based on the respective times of arrival of the respective predetermined message data segments; providing information based on the time difference for determination of a geolocation of the object; wherein the positioning signals include global positioning system (GPS) positioning signals, the method further comprising compensating for carrier frequency offset (CFO) of the satellites prior to determining the time of arrival. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method for determining a geolocation of an object, comprising:
-
collecting a plurality of positioning signals each including a predetermined message data segment; identifying the predetermined message data segment in each of the plurality of positioning signals, the predetermined message data segment being identical in each positioning signal and transmitted within each positioning signal at an identical moment in time; determining a time of arrival of the predetermined message data segment upon identification in each of the collected positioning signals; determining a time difference between at least two of the collected positioning signals based on the respective times of arrival of the respective predetermined message data segments; providing information based on the time difference for determination of a geolocation of the object; providing the positioning signals in a superframe; selecting a portion of the superframe to be the predetermined message data segment, wherein the selected portion of the superframe includes handover information.
-
-
9. A system for determining a geolocation of an object, comprising:
-
logic encoded in media and operable to; receive a plurality of positioning signals each including a predetermined message data segment, identify the predetermined message data segment in each of the plurality of positioning signals, the predetermined message data segment being identical in each positioning signal and being transmitted within each positioning signal at an identical moment in time, determine a time of arrival of the predetermined message data segment upon identification in each of the received positioning signals, determine a time difference between at least two of the received positioning signals based on the respective times of arrival of the respective predetermined message data segments, provide information based on the time difference for determination of a geolocation of the object, wherein the positioning signals include global positioning system (GPS) positioning signals, the logic operable to compensate for carrier frequency offset (CFO) of the satellites prior to determining the time of arrival. - View Dependent Claims (10, 11, 12, 13, 14)
-
-
15. A system for determining a geolocation of an object, comprising:
-
means for collecting a positioning signal including a predetermined message data segment; means for identifying the predetermined message data segment in each of the plurality of positioning signals, the predetermined message data segment being identical in each positioning signal and is transmitted within each positioning signal at an identical moment in time; means for determining a time of arrival of the predetermined message data segment upon identification in the positioning signal; means for providing information based on the time of arrival for determination of a geolocation of the object; means for compensating for carrier frequency offset (CFO) prior to determining the time of arrival, wherein the positioning signals include global positioning system (GPS) positioning signals. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification