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2006•Systems engineering and electronicsRequires access

Two-satellite location technology using cross ambiguity function joint estimation

Zhao Zhang

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Abstract

To study on the requirement of parameter measurement precision of the two-satellite high location,and to solve the high precision parameter measurement problem,the two-satellite location technology is introduced.Location model is established and location precision simulation is processed.The affect of various parameters,such as TDoA/FDoA measurement precision and satellites orbits,is proposed.Based on the analysis of various high precision TDoA/FDoA measurement methods,a TDoA/FDoA joint estimation method using cross ambiguity function is proposed.The simulation result indicates that the method is suited to many kinds of signals and its measure precision is higher.

About this research paper

What this paper is about

To study on the requirement of parameter measurement precision of the two-satellite high location,and to solve the high precision parameter measurement problem,the two-satellite location technology is introduced.Location model is established and location precision simulation is processed.The affect of various parameters,such as TDoA/FDoA measurement precision and satellites orbits,is proposed.Based on the analysis of various high precision TDoA/FDoA measurement methods,a TDoA/FDoA joint estimation method using cross ambiguity function is proposed.The simulation result indicates that the method is suited to many kinds of signals and its measure precision is higher.

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Available abstract

To study on the requirement of parameter measurement precision of the two-satellite high location,and to solve the high precision parameter measurement problem,the two-satellite location technology is introduced.Location model is established and location precision simulation is processed.The affect of various parameters,such as TDoA/FDoA measurement precision and satellites orbits,is proposed.Based on the analysis of various high precision TDoA/FDoA measurement methods,a TDoA/FDoA joint estimation method using cross ambiguity function is proposed.The simulation result indicates that the method is suited to many kinds of signals and its measure precision is higher.

Key concepts: FDOA, Multilateration, Satellite, Computer science, Ambiguity function, Dilution of precision, Joint (building), Ambiguity

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