Report on GNSS Training
Course ID: T141-30

Afghanistan, Australia, Austria, Bangladesh, Bhutan, Cambodia, India, Indonesia,Japan, Maldives, Mongolia, Nepal, The Philippines, Sri Lanka, Tajikistan, Thailand,
The United States of America, Vietnam

Hosted by GIC/AIT, Thailand
23 – 26 JAN 2018
Part A
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Training on GNSS – Course (T141-30), Organized by: GIC/AIT, S4D/CSIS and UNOOSA/ICG,
Hosted by at: GIC/AIT, Thailand from 23 – 26 JAN 2018

Table of Contents
1.

Course Name ......................................................................................................................................... 3

2.

Course ID ............................................................................................................................................... 3

3.

Course Introduction .............................................................................................................................. 3

4.

Objectives of the Training ..................................................................................................................... 4

5.

Benefits of the Training Course ............................................................................................................ 4

6.

Funding ................................................................................................................................................. 4

7.

Co-organizers: ....................................................................................................................................... 4

8.

Training Host ......................................................................................................................................... 4

9.

Training Duration .................................................................................................................................. 4

10.

Resource Persons .............................................................................................................................. 4

11.

Summary of Participants and Resource Persons ............................................................................... 5

12.

Lecture Materials and Data ............................................................................................................... 6

13.

AIT News Media Link ......................................................................................................................... 614.

Key Activities ..................................................................................................................................... 615.

Key Findings ....................................................................................................................................... 7

16.

Recommendations............................................................................................................................. 7

17.

Course Schedule ................................................................................................................................ 7

18.

List of Participants ............................................................................................................................. 7

19.

Course evaluation .............................................................................................................................. 7

20.

Pictures of the Program ..................................................................................................................... 7

Page: 2Training on GNSS – Course (T141-30), Organized by: GIC/AIT, S4D/CSIS and UNOOSA/ICG,Hosted by at: GIC/AIT, Thailand from 23 – 26 JAN 2018

1. COURSE NAME
Training on GNSS

2. COURSE ID

Figure 1: Course ID Coding

3. COURSE INTRODUCTION
The Global Positioning System (GPS) is widely used in almost all systems that require absolute positionand time. It is due to its accuracy, availability, reliability. In addition to GPS of the United States, several
other systems such as GLObal Navigation Satellite System (GLONASS) of the Russian Federation, theEuropean global navigation system (Galileo) of the European Union, the BeiDou Navigation Satellite
System (BDS) of China, the Indian Regional Navigation Satellite System (NavIC), India and the Quasi-Zenith
Satellite System (QZSS), Japan are now available. Collectively, they are called GNSS (Global Navigation
Satellite System). GNSS can provide centimeter level accuracy with a low-cost receiver, if an error
correction technique is used. Thus, availability of low-cost and high-accuracy receivers will eventually
increase GNSS related applications and its market. In order to keep the pace with these new applications
and developments, it is necessary to develop human resources and skills. Geoinformatics Center of theAsian Institute of Technology (GIC/AIT) together with the Center for Spatial Information Science at theUniversity of Tokyo (CSIS/UT) and with the support of the International Committee on GNSS (ICG), aretaking an initiative to create awareness on GNSS and its applications in Asia and the Pacific region. This
training course is a part of this initiative.
Page: 3Training on GNSS – Course (T141-30), Organized by: GIC/AIT, S4D/CSIS and UNOOSA/ICG,Hosted by at: GIC/AIT, Thailand from 23 – 26 JAN 2018

4. OBJECTIVES OF THE TRAINING

Introduction to GNSS, comprised of GPS, GLONASS, GALILEO, BDS, NavIC and QZSS. The course
primarily focuses on GPS and QZSS.
General overview of signal processing in receiver, receiver performances (low-cost receiver vs. highend receiver).
Introduction to PPP, RTKLIB and SW Maps
Field Survey using Low-Cost receiver for High-Accuracy positioning

5. BENEFITS OF THE TRAINING COURSE
Upon completion of this course, participants will be able to understand about how a GNSS receiver works,its signal structures as well as its applications including survey methods for obtaining higher accuracy.

6. FUNDING
Co-organizers have provided limited travel only financial assistance for eligible participants andpreference given to participants from the developing countries.

7. CO-ORGANIZERS:UNOOSA/ICG, Vienna
 United Nations Office for Outer Space Affairs
 International Committee on GNSS
S4D/CSIS/UT, Japan Space for Development
 Center for Spatial Information Science The University of Tokyo
IC/AIT, Thailand Geo-Informatics Center Asian Institute of Technology

8. TRAINING HOST
GIC/AIT, Thailand

9. TRAINING DURATION
23 – 26 JAN 2018, 30 hours

10. RESOURCE PERSONS
1. Sharafat Gadimova, UNOOSA/ICG, Austria
2. Dinesh Manandhar, Associate Professor, The University of Tokyo, Japan
3. Yuichi Hayakawa, Associate Professor, The University of Tokyo, Japan
4. Nobuaki Kubo, Associate Professor, Tokyo University of Marine Science and Technology, Japan
5. Suelynn Choy, Associate Professor, Royal Melbourne Institute of Technology (RMIT) University,Australia
6. Thomas Stansell, Stansell Consulting, USA (online lecture)
7. David Turner, State Department, USA (online lecture)
8. GIC/AIT resource persons and staffs
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Hosted by at: GIC/AIT, Thailand from 23 – 26 JAN 2018

11. SUMMARY OF PARTICIPANTS AND RESOURCE PERSONS
Table 1: Summary of Participants & Resource Persons

Total Participants

67

International Participants
Funded International Participants
Self-funded International Participants
Thai Participants
AIT Students and Researchers
Number of Countries

25141124
18
15
Afghanistan, Bangladesh, Bhutan, Cambodia,India, Indonesia, Japan. Maldives, Mongolia,
Nepal, The Philippines, Sri Lanka, Tajikistan,Thailand, Vietnam
7 (Australia: 1, Japan: 3, UNOOSA: 1, USA :2)
7

Number of Resource Persons (International)
GIC Resource Persons

Figure 2: Countries represented by the training participants, RED: Resource Persons, BLUE: Trainees

Page: 5Training on GNSS – Course (T141-30), Organized by: GIC/AIT, S4D/CSIS and UNOOSA/ICG,
Hosted by at: GIC/AIT, Thailand from 23 – 26 JAN 2018

12. LECTURE MATERIALS AND DATA
http://www.unoosa.org/oosa/en/ourwork/icg/activities/2018/ait-gnss.html
http://www.csis.u-tokyo.ac.jp/~dinesh/

13. AIT NEWS MEDIA LINK
https://www.facebook.com/pg/AITasia/photos/?tab=album&album_id=10156033923604709

14. KEY ACTIVITIESThe participants were given lectures as per the course schedule in Appendix 1. The participants weredivided in to 11 teams with 6 members in each team. Each team was provided with a low-cost GNSS
receiver to log data. The participants were also asked to log data using android mobile phone device.
On day2, each participants logged GNSS data as they liked. They were not provided any instructions on
how to setup the antenna or other necessary arrangements to log data except the procedure to save thedata in computer. Since, it was the first time for most of the participants to log GNSS data by themselves,
they tried their best to log data. But, the way they hold the antenna or set the antenna was not a proper
way for GNSS surveying. Though they could log GNSS data, the results they get is not good at all. The
participants were also given lectures on UAV Applications with GNSS, Operation of UAS, UAV Case Studies
and High-precision GNSS for UAS.
On day 3, the participants were taught how to conduct GNSS survey, how to set antenna for good dataetc. Also, they were taught the types of errors in GNSS and how these errors can be removed by using areference station data for higher accuracy. The participants logged data again on this day with proper
handling of antenna or setting the antenna on a tripod.
The participants learnt how to perform PPP and RTK (post-processing) to get high accuracy of few
centimeters. The results clearly show how accuracy improved from Day 2 to Day 3 as well as thecentimeter level accuracy achievement from various signal processing methods like PPP and RTK.
On day 4, the participants learnt how to use real-time RTK processing by using RTKLIB. Finally, each teampresented their results from PPP and RTK processing.
During this training course, the participants learned various methods of signal processing like PPP, RTK(post-processing and real-time) for high accuracy using data from survey-grade and low-cost GNSS
receivers.

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Training on GNSS – Course (T141-30), Organized by: GIC/AIT, S4D/CSIS and UNOOSA/ICG,
Hosted by at: GIC/AIT, Thailand from 23 – 26 JAN 2018

15. KEY FINDINGS

This type of training is very effective to teach practical methods of how to process GNSS data for highaccuracy. The training does not focus much on theoretical aspects. After the training, the trainees will
be able to perform survey themselves and understand the output results.
Many participants have feeling that high-accuracy GPS receivers are very expensive so they don’t
think about using GPS in other applications beyond survey.
Some participants thought that GPS is only for surveying, mapping and navigation. So they neverthought about using it in agriculture, traffic analysis, timing applications etc
Due to GNSS, users are now confused which combination of satellites are good for their applications.
GNSS receiver with all satellite and all signals are expensive. Thus, it is necessary to make a guideline
on GNSS receiver selection based on applications, required accuracy and working site.
A GNSS survey procedure guideline is also necessary based on applications, required accuracy,working site, mode of operation (real-time, post-processing, static or dynamic)
Need to teach what type of data are provided by GPS receivers and how those data can be used invarious applications.

16. RECOMMENDATIONSThis type of training shall be continued in future as well.
Training shall be focused to give more practical solutions.
If possible, sample low-cost devices shall be provided to trainees so that they can practice and teachthe know-how to their colleagues back home.
Training at various levels targeting various groups shall be conducted. For example, training targeting
policy and decision making level is equally important so that GNSS technology itself could beunderstood at decision and policy making level.

17. COURSE SCHEDULE
Appendix 1

18. LIST OF PARTICIPANTS
Appendix 2

19. COURSE EVALUATION
Appendix 3
Training participants are requested to submitted course evaluation form as shown in Appendix 3.

20. PICTURES OF THE PROGRAM
Appendix 4

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Training on GNSS – Course (T141-30), Organized by: GIC/AIT, S4D/CSIS and UNOOSA/ICG,Hosted by at: GIC/AIT, Thailand from 23 – 26 JAN 2018