Faculty Profiles - CHO Mengu

Papers - CHO Mengu

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Remote Sensing Applied to the Study of the Triatomines Dispersion Dynamics, Case Study: Indigenous Communities of Paraguayan Chaco Reviewed International journal

Adolfo Javier Jara Cespedes, Izrael Zenar Casople Bautista, Federico Augusto Gaona Veron, Antonieta Rojas de Arias, Mengu Cho

71st International Astronautical Congress 2020.10

Sulphur-Fueled Surface Arc Thruster for Propelling Nanosatellites Reviewed International journal

Senior Shimhanda, Kotaro Hiraka, Taro Inoue, Kazuhiro Toyoda,Mengu Cho

71st International Astronautical Congress 2020.10

Ionosphere Measurement: Point-to-point Total Electron Content Estimation Using UHF Inter-Satellite Ranging for Cube-Sat Constellation Reviewed International journal

Hoda Awny El-megharbel, Makiko Kishimoto, Necmi Cihan Örger, Victor Schulz, Tharindu Dayarathna, Rahmi Rahmatillah, Mariko Teramoto, Mengu Cho, Chee Lap Chow, Man Siu Tse and Holden Li,

71st INTERNATIONAL ASTRONAUTICAL CONGRESS 2020 2020.10

CUBESAT INTERFACE STANDARDIZATION TO ACHIEVE FASTER DELIVERY AND MISSION SUCCESS Reviewed International journal

Mengu Cho, Takashi Yamauchi, Marloun Sejera, Sangkyun Kim, Hirokazu Masui

71st International Astronautical Congress 2020.10

SURVEY ON NANO-SATELLITE CAPACITY BUILDING NEEDS AROUND THE WORLD Reviewed International journal

Mengu Cho, George Maeda, Yasuyuki Miyazaki, Yukihito Kitazawa, Michio Ozawa, Rei Kawashima

71st International Astronautical Congress IAC-20-B4.1.1.x59649 2020.10

Improvement of Communication System for 1U CubeSat Reviewed International journal

Makiko Kishimoto, Tharindu Lakmal Dayarathna Malmadayalage, Abhas Maskey, Pooja Lepcha, Dulani Chamika Withanage, Yuta Kakimoto, Yuji Sasaki, Hari Ram Shrestha, BIRDS Partners, George Maeda, Takashi Yamauchi, Sangkyun Kim, Hirokazu Masui, Mengu Cho

34th Annual Small Satellite Conference 2020.08

CubeSat Electrical Interface Standardization for Faster Delivery and More Mission Success Reviewed International journal

Mengu Cho, Takashi Yamauchi, Marloun Sejera, Yukihisa Ohtani, Sangkyun Kim, Hirokazu Masui

Small Satellite Conference SSC20-WKI-03 2020.08

A lean satellite electrical power system with direct energy transfer and bus voltage regulation based on a bi-directional buck converter Reviewed

Juan J. Rojas, Mengu Cho, Yamauchi Takashi

Aerospace 7 ( 7 ) 94 2020.07

Electrical Propulsion System Using Lunar Regolith Dust as Propellant Reviewed International journal

Noruji MUTO, Necmi Cihan ORGER, Jose Rodrigo CORDOVA ALARCON, Kazuhiro TOYODA, Mengu CHO

JpGU-AGU Joint Meeting online 2020.07

Development and Investigation of Communication Issues on a CubeSat-onboard Amateur Radio Payload with APRS Digipeater and Store-and-Forward Capabilities Reviewed

Adrian C. SALCES, Marloun P. SEJERA, Sangkyun KIM, Hirokazu MASUI, Mengu CHO

UNISEC Space Takumi J 9 ( 2 ) 17 - 46 2020.06

hortening of the Delivery Time for University-Class Lean Satellite Reviewed International journal

Kiran K. Pradhan, Mengu Cho

Journal of Small Satellites 09 ( 02 ) 2020.06

Shortening of the Delivery Time for University-Class Lean Satellite Reviewed

Kiran K. Pradhan, Mengu Cho

Journal of Small Satellites 9 ( 1 ) 2020.01

Survey on nano-satellite capacity building needs around the world Reviewed

Cho M., Maeda G., Miyazaki Y., Kitazawa Y., Ozawa M., Kawashima R.

Proceedings of the International Astronautical Congress, IAC 2020-October 2020.01

Implementation of Adaptive Antenna Array for Ground Station Tracking System Reviewed

MOHAMMAD ZAKI Syazana Basyirah, KAYA Nobuyuki, CHO Mengu

TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN ( THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES ) 18 ( 5 ) 199 - 208 2020.01

Language：English Publishing type：Research paper (scientific journal)

<p>As the number of small satellites keeps increasing due to the low-cost development and fast delivery duration, there is a demand for higher capacity and capability of the ground station tracking system. Generally, the existing ground station tracking system faces major performance degradation while tracking satellites because of signals interference and multi-path fading. These problems motivate researchers to come out with interesting solution to mitigate the degradation performance. This paper describes the implementation of adaptive beam forming algorithm of phased array antenna for ground station tracking system. The adaptive antenna array demonstrates electronically self-steering radiation pattern capability towards satellites signals, suppress interferences and multi-path signals. This can be achieved by adapting the Least Mean Square (LMS) algorithm by varying the number and phase of the array antenna elements and the angle of beam steering to determine the Direction of Arrival (DOA) of incoming signals. The performance of adaptive LMS algorithm is investigated in MATLAB software by analyzing the radiation patterns for different number of array antenna elements, phases and beam steering angle. The purpose of LMS algorithm implementation in the Adaptive Array Antenna (AAA) system is to control weights adaptively, optimize the Signal to Noise Ratio (SNR) of the desired signal and minimize the Mean Square Error (MSE).</p>

DOI： 10.2322/tastj.18.199

CiNii Article

CiNii Research

Other Link： https://ci.nii.ac.jp/naid/130007896457

Cubesat interface standardization to achieve faster delivery and mission success Reviewed

Cho M., Yamauchi T., Sejera M., Kim S., Masui H.

Proceedings of the International Astronautical Congress, IAC 2020-October 2020.01

A grid square statistical approach in data organization for urban growth impact assessment on in-and-outdoor thermal condition in Manila City, Philippines Reviewed

Purio M.A.C., Cho M., Yoshitake T., Renchin T.

Proceedings of the International Astronautical Congress, IAC 2020-October 2020.01

Creating cubesat image database for machine learning based onboard classification for future missions Reviewed International journal

Maskey A., Cho M.

Advances in the Astronautical Sciences 173 475 - 483 2020.01

Sulphur-fuelled surface arc thruster for propelling nanosatellites Reviewed International journal

Shimhanda S., Hiraka K., Inoue T., Toyoda K., Cho M.

Proceedings of the International Astronautical Congress, IAC 2020-October 2020.01

SS27 Radiation protection and monitoring experiment on-board a 1U CubeSat and its ground verification Reviewed International journal

Murase T., Masui H., Cho M., Wei S.

Proceedings - IEEE International Symposium on Circuits and Systems 2020-October 2020.01

Remote sensing applied to the study of the triatomines dispersion dynamics, case study: Indigenous communities of Paraguayan Chaco Reviewed International journal

Cespedes A.J.J., Cho M., Bautista I.Z.C., de Arias A.R., Veron F.A.G.

Proceedings of the International Astronautical Congress, IAC 2020-October 2020.01

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