Radiometric Cross-calibration of Goktiirk-2 with Landsat 8

2017-05-18
Demirhan, Ismail Hakki
Deveci, Husne Seda
Sakarya, Ufuk
Radiometric calibration studies need to be done during the life-time of a satellite. In this paper, reflectance-based cross calibration was conducted at Tuz Golu LandNet site in 2016 using Goktiirk-2 and Landsat 8 imageries. Using near simultaneous images of the satellites under the same atmospheric conditions reduces the effect caused by reflection differences of light. Cross calibration method can he conducted when the satellite sensors have similar bandwith. Even though observing visible bands is the basic approach, filter transmittance and sensor reactivitN is not same for all satellite sensors. Therefore, the differences in the relative spectral response should be corrected. In this study a new method has not been proposed. A method already exists in the literature was applied to Giiktiirk-2 imagery for the first time. In addition, another improvement in this study is suggesting a new approach by converting ground reflectance measurements into top of atmosphere reflectance. Comparing related study with the similar studies in literature similar success has been attained.
25th Signal Processing and Communications Applications Conference (SIU)

Suggestions

Radar cross section analysis by shooting and bouncing rays method
Çakır, Mustafa Kağan; Tokdemir, Turgut; Department of Engineering Sciences (2015)
In this study, a MATLAB code incorporating `Shooting and Bouncing Rays (SBR) Method` is developed for calculating Radar Cross Section (RCS) of complex shapes. The code can calculate ray paths, magnetic current sheets, incident and scattered electric fields and RCS in horizontal, vertical and cross polarizations. While reflection effects are calculated by SBR algorithm, diffraction effects due to edges and corners are handled by `Equivalent Edge Currents (EEC’s)`. Wave frequency, aspect angle and number of r...
Radiometric Camera Calibration of BiLSAT Small Satellite: Preliminary Results
Frıedrıch, Jurgen; Leloğlu, Uğur Murat; Tunalı, Erol (2006-02-16)
The studies on radiometric camera calibration of multispectral camera of the BiLSAT satellite is presented in this work. During the study, various dark images and flat-field images have been taken, and deviations from ideal has been investigated. Various sources of error have been studied and the non-homogeneous response of the CCD is explicitly modeled. Images have been corrected according to the models and the results have been discussed.
Frequency Modulated Continuous Wave Radar for Range Detection
Kaya, Tevfik; Sahin, Enes Burak; Nesimoglu, Tayfun (2018-11-02)
In this paper, a Frequency Modulated Continuous Wave Radar is built using radio frequency techniques. Radar can measure the nearest object's range from 2 to 30 meters with 1-meter range resolution. The design process was carried out by using computer-aided design techniques, and mathematical tools. The hardware prototype was built and measurements were carried out confirming successful operation of the range detection radar.
Computational Spectral Imaging Techniques for High-Resolution and Instantaneous Observations of the Solar Corona
Öktem, Sevinç Figen; Davila, Joseph M (2014-08-18)
Spectral imaging is a fundamental diagnostic technique for the study of the solar coronal plasma, and spectral data is routinely used to measure the temperature, density, and flow velocity in coronal features. However, obtaining the spectra of a multi-dimensional region with inherently two-dimensional detectors poses intrinsic limitations on the spatio-temporal extent of the technique. In particular, slit spectrographs suffer from a limited instantaneous field-of-view (IFOV), and filter-based spectral image...
Monte Carlo analysis of the effects of the material and shape uncertainties on radar cross section by the finite difference time domain method
Kazar, Ali Kemal; Kuzuoğlu, Mustafa; Özgün, Özlem; Department of Electrical and Electronics Engineering (2013)
The aim of this research is to analyze the variations in Radar Cross Section (RCS) values of dielectric and conducting objects due to material and shape uncertainties by employing the Finite Difference Time Domain Method and the Monte Carlo approach in electromagnetic scattering problems. MATLAB codes are developed and validated to solve the electromagnetic scattering problem involving two and three dimensional arbitrarily-shaped objects. Basic principles of FDTD and its implementation in MATLAB are describ...
Citation Formats
I. H. Demirhan, H. S. Deveci, and U. Sakarya, “Radiometric Cross-calibration of Goktiirk-2 with Landsat 8,” Antalya, TURKEY, 2017, p. 0, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/66322.