Faculty Profiles - CHO Mengu

Papers - CHO Mengu

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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

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

Ionosphere measurement: Point-to-point total electron content estimation using UHF inter-satellite ranging for CubeSat constellation Reviewed International journal

Elmegharbel H.A., Kishimoto M., Orger N.C., R-Schulz V., Dayarathna T., Rahmatillah R., Teramoto M., Cho M., Chow C.L., Tse M.S., Li H.

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

Horyu-VI: International cubesat mission to investigate lunar horizon glow Reviewed International journal

Orger N.C., Cho M., Iskender O.B., Lim W.S., Chandran A., Ling K.V., Holden K.H.L., Chow C.L., Bellardo J., Faure P., Santoni F., Circi C., Marzioli P., de Grossi F., Frezza L., Toyoda K., Masui H., Mariko T., Alarcon J.R.C., Yamauchi T., Kim S., Lim J.W.M., Potrivitu G., Laterza M.

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

Difference in threshold voltage of arc inception between electron beam and ultraviolet environment Reviewed International journal

Toyoda K., Kose S., Sasaki T., Cho M.

AIAA Scitech 2020 Forum 1 PartF 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

Peltier-based Thermal Testing (PeTT) Vacuum Chamber: Affordable Testing Facility for Lean Satellites Reviewed International journal

Bonsu Benjamin, Hirokazu Masui, Mengu Cho

UNISEC Space Takumi Journal 8 ( 2 ) 11 - 38 2019.12

Near-zero metamaterial inspired UHF antenna for nanosatellite communication system Reviewed International journal

Alam T., Islam M., Cho M.

Scientific Reports 9 ( 1 ) 2019.12

Techniques for Repeatable Pyroshock Testing on an Air Gun Shock Machine for Lean Satellites Reviewed International journal

18. Ibukun Oluwatobi ADEBOLU, Hirokazu MASUI, Isamu INOUE, Mengu CHO

90th Shock and Vibration Symposium 2019.11

Store and Forward Data Collection Using Low-Cost Sensor Stations Reviewed International journal

Pooja Lepcha, Mengu Cho

4th International BIRDS Workshop 2019.11

Propose Strategy to Increase Capacity Development for Cubesat Thermal Vacuum Testing in Africa Reviewed International journal

Bonsu Benjamin, Hirokazu Masui, Mengu Cho

8th International Conference on Space Science and Satellite Technologies Application 2019.11

BIRDS-3 Satellite Project Including the First Satellites of Sri Lanka and Nepal Reviewed International journal

Withanage Dulani Chamika, Mengu Cho, George Maeda , Sangkyun Kim , Hirokazu Masui , Takashi Yamauchi , Sanath Panawannege

70th International Astronautical Congress 2019.10

Introducing Low-Cost Thermal vacuum Testing Facility for the emerging space program in African Universities in Africa Reviewed International journal

Bonsu Benjamin, Hirokazu Masui, Mengu Cho

70th International Astronautical Congress 2019.10

Status of Assembly, Integration, and Testing (AIT) Facilities for Satellite Testing in Africa Reviewed International journal

Bonsu Benjamin, Hirokazu Masui, Mengu Cho

27th Workshop on Space Technology for Socio-Economic Benefit, UN/IAF Symposium 2019.10

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Papers - CHO Mengu