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Functionality Expansion of GNSS Receiver when Using Two Satellite Systems

V. I. Baburov, N. V. Vasilyeva, N. V. Ivantsevich

Transactions of IAA RAS, issue 59, 3–8 (2021)

Keywords: GNSS, navigation field, information characteristics, positioning accuracy, mathematical simulation

Abstract

Satellite radio navigation systems are currently used in various fields of human activity. A special place is occupied by applications in the field of vehicle traffic. Due to the worldwide and continuity of the navigation fields of second-generation satellite systems using medium-low orbits, they are promising for navigation of aircraft for various purposes, from aircraft to space apparatuses and small UAVs. In these applications, both regular and non-standard options for using the navigation fields of the GNSS are implemented. The regular use of the navigation field refers to the functioning of GNSS receiver under the conditions stipulated in the interface documents for these systems. In these situations, the positioning accuracy recorded in these documents should be ensured. However, during the operation of aircraft, spacecraft, UAVs and other objects, abnormal situations arise, such as overshadowing of certain areas of the surrounding consumer space, for example, mountains, buildings or artificial obstacles; work in conditions of roll, pitch of aircraft or rolling of a ship; the presence of reflections from the underlying and other reflective surfaces and other abnormal situations. Some of these situations can be overcome by using the information redundancy of the navigation field created by two GNSS, for example, GLONASS + GPS, GLONASS + BeiDou and in other GNSS combinations. In addition, with the simultaneous use of the navigation fields of two satellite systems, it is possible to simplify information processing algorithms for differential (relative) localities by implementing the method of transmitting differential corrections by coordinates, and not by pseudoranges. The article analyzes the composition of the working constellations of GLONASS + GPS navigation satellites, evaluates the information redundancy of the working satellites constellations with regular and various variants of the non-standard use of the navigation field; a comparison is made with similar characteristics of GLONASS and GPS standard and relative positioning. The results are obtained by the method of simulation mathematical modeling and are presented in the form of tables containing the parameters of the distributions of the number of navigation satellites in working constellations and geometric factors, under various constraints corresponding to emergency situations. The results obtained can be useful in assessing the accuracy and reliability of positioning by on-board navigation and landing complexes of aircraft for various purposes in difficult flight conditions.

Citation

Text

BibTeX

RIS

V. I. Baburov, N. V. Vasilyeva, N. V. Ivantsevich. Functionality Expansion of GNSS Receiver when Using Two Satellite Systems // Transactions of IAA RAS. — 2021. — Issue 59. — P. 3–8.

@article{baburov2021,
  abstract = {Satellite radio navigation systems are currently used in various fields of human activity. A special place is occupied by applications in the field of vehicle traffic. Due to the worldwide and continuity of the navigation fields of second-generation satellite systems using medium-low orbits, they are promising for navigation of aircraft for various purposes, from aircraft to space apparatuses and small UAVs. In these applications, both regular and non-standard options for using the navigation fields of the GNSS are implemented. The regular use of the navigation field refers to the functioning of GNSS receiver under the conditions stipulated in the interface documents for these systems. In these situations, the positioning accuracy recorded in these documents should be ensured. However, during the operation of aircraft, spacecraft, UAVs and other objects, abnormal situations arise, such as overshadowing of certain areas of the surrounding consumer space, for example, mountains, buildings or artificial obstacles; work in conditions of roll, pitch of aircraft or rolling of a ship; the presence of reflections from the underlying and other reflective surfaces and other abnormal situations.
Some of these situations can be overcome by using the information redundancy of the navigation field created by two GNSS, for example, GLONASS + GPS, GLONASS + BeiDou and in other GNSS combinations. In addition, with the simultaneous use of the navigation fields of two satellite systems, it is possible to simplify information processing algorithms for differential (relative) localities by implementing the method of transmitting differential corrections by coordinates, and not by pseudoranges. The article analyzes the composition of the working constellations of GLONASS + GPS navigation satellites, evaluates the information redundancy of the working satellites constellations with regular and various variants of the non-standard use of the navigation field; a comparison is made with similar characteristics of GLONASS and GPS standard and relative positioning.
The results are obtained by the method of simulation mathematical modeling and are presented in the form of tables containing the parameters of the distributions of the number of navigation satellites in working constellations and geometric factors, under various constraints corresponding to emergency situations. The results obtained can be useful in assessing the accuracy and reliability of positioning by on-board navigation and landing complexes of aircraft for various purposes in difficult flight conditions.},
  author = {V.~I. Baburov and N.~V. Vasilyeva and N.~V. Ivantsevich},
  doi = {10.32876/ApplAstron.59.3-8},
  issue = {59},
  journal = {Transactions of IAA RAS},
  keyword = {GNSS, navigation field, information characteristics, positioning accuracy, mathematical simulation},
  pages = {3--8},
  title = {Functionality Expansion of GNSS Receiver when Using Two Satellite Systems},
  url = {http://iaaras.ru/en/library/paper/2099/},
  year = {2021}
}

TY  - JOUR
TI  - Functionality Expansion of GNSS Receiver when Using Two Satellite Systems
AU  - Baburov, V. I.
AU  - Vasilyeva, N. V.
AU  - Ivantsevich, N. V.
PY  - 2021
T2  - Transactions of IAA RAS
IS  - 59
SP  - 3
AB  - Satellite radio navigation systems are currently used in various
fields of human activity. A special place is occupied by applications
in the field of vehicle traffic. Due to the worldwide and continuity
of the navigation fields of second-generation satellite systems using
medium-low orbits, they are promising for navigation of aircraft for
various purposes, from aircraft to space apparatuses and small UAVs.
In these applications, both regular and non-standard options for
using the navigation fields of the GNSS are implemented. The regular
use of the navigation field refers to the functioning of GNSS
receiver under the conditions stipulated in the interface documents
for these systems. In these situations, the positioning accuracy
recorded in these documents should be ensured. However, during the
operation of aircraft, spacecraft, UAVs and other objects, abnormal
situations arise, such as overshadowing of certain areas of the
surrounding consumer space, for example, mountains, buildings or
artificial obstacles; work in conditions of roll, pitch of aircraft
or rolling of a ship; the presence of reflections from the underlying
and other reflective surfaces and other abnormal situations.  Some of
these situations can be overcome by using the information redundancy
of the navigation field created by two GNSS, for example, GLONASS +
GPS, GLONASS + BeiDou and in other GNSS combinations. In addition,
with the simultaneous use of the navigation fields of two satellite
systems, it is possible to simplify information processing algorithms
for differential (relative) localities by implementing the method of
transmitting differential corrections by coordinates, and not by
pseudoranges. The article analyzes the composition of the working
constellations of GLONASS + GPS navigation satellites, evaluates the
information redundancy of the working satellites constellations with
regular and various variants of the non-standard use of the
navigation field; a comparison is made with similar characteristics
of GLONASS and GPS standard and relative positioning.  The results
are obtained by the method of simulation mathematical modeling and
are presented in the form of tables containing the parameters of the
distributions of the number of navigation satellites in working
constellations and geometric factors, under various constraints
corresponding to emergency situations. The results obtained can be
useful in assessing the accuracy and reliability of positioning by
on-board navigation and landing complexes of aircraft for various
purposes in difficult flight conditions.
DO  - 10.32876/ApplAstron.59.3-8
UR  - http://iaaras.ru/en/library/paper/2099/
ER  -