Halil Ersin Söken

E-mail

esoken@metu.edu.tr

Department

Department of Aerospace Engineering

ORCID

0000-0002-4796-8188

Scopus Author ID

57196105295

Web of Science Researcher ID

K-1833-2016

Relative position estimation using modulated magnetic field for close proximity formation flight Shibata, Takuma; Söken, Halil Ersin; Sakai, Shin-ichiro (2024-12-01) This paper presents a method to estimate relative position vectors between spacecraft equipped with magnetic coils and magnetic field sensors for close proximity operation. Filters can segregate a magnetic field with a par...
Computationally Efficient Attitude Estimation for Small Satellites Using Integrated Measurements Benli, Dogukan; Söken, Halil Ersin (2024-01-01) Every year, computer processors are becoming more powerful and efficient. This progress allows for using less power for computing or more complex models for embedded systems, especially in aerospace. Nevertheless, computat...
Analog sun sensor measurement correction using deep neural network Söken, Halil Ersin; Sozen, Semsettin Numan; Gokce, Murat; Yavuzyilmaz, Cagatay; Gulmammadov, Farid (2023-10-01) Sun sensors are commonly used attitude sensors because of their low cost, mass, volume, and power consumption. Analog Sun sensors (ANSS), which are smaller but usually less accurate than digital ones, are especially prefer...
Incorporating delayed star tracker measurements in Gokturk-2 satellite attitude filter Kahraman, Ozgur; Söken, Halil Ersin (2023-01-01) Star trackers (STRs) are widely used for fine attitude estimation. Due to the processing time for tasks such as star identification, tracking, and attitude solution, a STR can provide the attitude quaternion measurements w...
Real-Time Attitude Independent Calibration of Spinning Spacecraft Magnetometers Using Quasi-Measurements Cetin, Mustafa Efe; Söken, Halil Ersin; Sakai, Shin-ichiro (2022-11-01) Magnetometers are essential sensors for attitude estimation in small spacecraft due to their robust, inexpensive, and lightweight characteristics. However, the raw measurements contain sensor errors. These errors degrade t...
Hybrid Multi-Algorithmic Attitude Determination and Control Architecture Söken, Halil Ersin; Yıldırım, Cansu (2022-09-25)
Attitude Determination for Nanosatellites Using Only a Set of Analog Sun Sensors Sözen, Şemsettin Numan; GÖKCE, MURAT; Söken, Halil Ersin; Gulmammadov, Farid (2022-02-26)
Uçak ve uzay mühendisliği nedir? Söken, Halil Ersin (2022-01-01)
Estimation of attitude using robust adaptive kalman filter Candan, Batu; Söken, Halil Ersin (2021-06-23) IEEE.This paper proposes a novel covariance-scaling based robust adaptive Kalman filter (RAKF) algorithm for attitude (i.e., roll and pitch) estimation using an inertial measurement unit (IMU) composed of accelerometer and...
Attitude filtering for nanosatellites: A comparison of different approaches under model uncertainties Esit, Mehmet; Yakupoglu, Sirin; Söken, Halil Ersin (2021-01-01) Nanosatellites have become an integral part of space research in recent years, especially for universities and non-profit organizations. Attitude estimation is a key function that is playing a leading role in the success o...

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