NDLI: Efficient ambiguity resolution using constraint equation

Content Provider	IEEE Xplore Digital Library
Author	Chansik Park Ilsun Kim Jang Gyu Lee Gyu-In Jee
Copyright Year	1996
Description	Author affiliation: Sch. of Electr. Eng., Seoul Nat. Univ., South Korea (Chansik Park)
Abstract	Precise relative positioning is possible by using the carrier phase observables of Global Positioning System (GPS). To use carrier phase for positioning, however, initial integer ambiguity included in the carrier phase measurement must be resolved. Many integer ambiguity search techniques while on the move, the so called on-the-fly (OTF) ambiguity search, have been proposed in recent years. But there still remains a strong requirement for fast and real-time OTF integer ambiguity search technique. A fast method to fix integer ambiguity is proposed in this paper. With the proposed method, one can find the relationship between integer ambiguities which is independent of the user position, and it uses the relationship as a constraint equation. It is known that only three elements of ambiguities are independent, and the remaining dependent elements can be determined after the position is obtained by independent elements. By using the constraint equation, the dependent elements can be directly determined without knowing the user position. And these ambiguities with covariance information are used as a new rejection criteria. The proposed technique is applied to real data to demonstrate its effectiveness.
Starting Page	277
Ending Page	284
File Size	570477
Page Count	8
File Format	PDF
ISBN	0780330854
DOI	10.1109/PLANS.1996.509089
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-04-22
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Phase measurement Global Positioning System Vectors Automatic control Differential equations Measurement errors Kinematics Frequency Decorrelation Feedback amplifiers
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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