Observation Fields for Ionospheremonitoring in Chiang Mai
Siramas Komonjinda
Faculty of Science, Chiang Mai University

Tharadol Komolmis
Faculty of Engineering, Chiang Mai University

Ekkarach Somboon
Faculty of Science, Chiang Mai University

Together with NICT & STEL lab

Since 2002, CMU, NICT and STEL started their Ionospheric observation inThailand project.
There are two sites of observatory; at Mae Hea Campus and Sirindhorn
Observatory, Chiang Mai University site.
A FM-CW ionosonde was operated since 2002 at Mae Hia Campus.
An all-sky imager and a Fabry-Perot interferometer were installed in 2009 atSirindhorn Observatory, Chiang Mai University.
The data collected from these instruments was achieved and analysis by theNICT (SEALION project) and STEL.

Space Environment Research Activity
NICT and CMU continue a collaborative research agreement in“SEALION Project” (Southeast Asia Low-latitude Ionospheric Network)from 2004

CMU staff members• Asst. Prof. Tharadol Komolmis, Faculty of Engineering.
• Asst. Prof. Siramas Komonjinda, Faculty of Science.

MOU
Memorandum of Understanding between NICT and CMU inInformation and Communications Technology(Photonics Communications And Space Environment)
Duration 1 November 2012 – 31 October 2015
Signed on 17 December 2012

Space Environment Research Activity
1st AOSWA Workshop

CMU Mae Hea Campus

Sirindhorn Observatory, Chiang Mai University
CMU Main Campus

Mae Hea Campus

Space Environment Research Activity• Operate Ionosonde Observation station at Mae Hea campus to collectIonogram, Total Electron Content (TEC) and GPS data.

CMU Mae Hea Campus

Sirindhorn Observatory, Chiang Mai University
CMU Main Campus

Sirindhorn Observatory, Chiang Mai University(18° 57’ N, 98° 55’ E, 789-m AMSL)Space Environment Research Activity• Operate an All-Sky Imaging system installed at Sirindhorn Observatory ,Chiang
Mai University.

Collaborative Research Agreement
NICT and CMU singed a collaborative research agreement in the topic“Standardization of a method for optoelectronic frequency responsemeasurement”
Scope: 1. Photodiode measurement method
2. International Standardization
Period: 3 years from 29 January 2013
Meetings concerning the research agreement:
1. Regular meetings over Skype
2. Meetings during visits and standardization forumCollaborative Research Agreement
NICT and CMU singed a collaborative research agreement in the topic“Standardization of a method for optoelectronic frequency response
measurement”
Publications:International Conference papers•••

T. Tangmala, U. Mankong, K. Inagaki and T. Kawanishi, “PD frequency response measurement
technique using MZM with two-tone lightwave power control,” in Lasers and Electro-Optics
Pacific Rim (CLEO-PR), 2013 Conference on, Kyoto, Japan, 30 July – 4 August 2013.
K. Inagaki, U. Mankong and T. Kawanishi, “Error Analysis of Optoelectronic Frequency Response
Measurement of Photodiodes Using High-Extinction Ratio Mach-Zehnder Modulatior,” in The
11th International Conference on Optical Communications and Networks (ICOCN2012), Pattaya,Thailand, 28-30 November, 2012.
T. Tangmala, S. Potha, U. Mankong, K. Inagaki and T. Kawanishi, “Optoelectronic Frequency
Response Measurement Using Standard Mach-Zehnder Modulator,” in The 11th International
Conference on Optical Communications and Networks (ICOCN2012), Pattaya, Thailand, 28-30November, 2012.

Collaborative Research Agreement
NICT and CMU singed a collaborative research agreement in the topic“Standardization of a method for optoelectronic frequency response
measurement”
Standardization Publication and attendance:
Asia pacific standardization program forum meetings (ASTAP)• Expert Group on Millimeter Wave Communication Systems, 20th Asia PacificTelecommunity (APT) Standardization Program Forum, 30 July – 1 August, 2012
• Expert Group on Millimeter Wave Communication Systems, 21st Asia PacificTelecommunity (APT) Standardization Program Forum, 11 – 15 March, 2013
Contribute Input document “Realization of Two-tone O/E CharacterizationTechnique” ASTAP21-INP95• Expert Group on Millimeter Wave Communication Systems, 22nd Asia PacificTelecommunity (APT) Standardization Program Forum, 11 – 14 September, 2013
Work published in APT Report on Characteristics and Requirements ofOptical and Electrical Components for Millimiter-wave Radio on Fiber Systems
APT/ASTAP/REPT-03 (Rev.1)

Staff & Student visits to NICT1.

2.

CMU staff members : Asst. Prof. Dr Ukrit Mankong and Asst. Prof. Dr.
Nipapon Siripon visit to NICT
To conduct research in Optoelectronic Measurement
30 June 2013 – 13 July 2013

CMU student: Mr Tanawat Tangmala (for MEng degree) visit to NICTUnder NICT Internship program for 2 month period between MayJuly 2013
To conduct research in AM&PM Characterization And Frequency
response of EAM

NICT visits to CMU
1.

Dr. Keizo Inagaki and Dr. Atsushi Kanno’s visit to CMU
30 August 2013

2.

Dr. Keizo Inagaki’s visit to CMU
25 November 2013

Discussion topics:(1) mobile back haul study(2) PD's Frequency response measurement system(3) EA modulator's experiment.

NICT visits to CMU
for Space Environment Research Activity•Dr. Takuya Tsugawa and Dr. Takumi Kondo visit to Ionosonde stationand Sirindhorn observatory on 23-25 April 2013.

To Repair FMCW system, Replace PCs, Install JAXA's Multi-GNSS receiver
and antenna at Ionosonde station and check statusof the All-sky imaging sytem.

NICT visits to CMUfor Space Environment Research Activity•Dr. Takuya Tsugawa and Dr. Takumi Kondo visit to Ionosonde
station and Sirindhorn observatory on 6-8 August 2013.

To repair the Ionosonde antenna.

National Observatory

CMU New Campus (Sri Bua Barn)Thai National Observatory(18° 34’ N, 98° 28’ E, 2,457-m AMSL)Thai National Telescope

Thank you for your attention.
Research collaborations are welcome.