Corner Reflector (CR) Installation and Controlling of Permanent Scatterer (PS) in Mine Sites

Year 2022, Volume: 6 Issue: 2, 297 - 302, 30.12.2022

Bekir Poyraz , Yavuz Gül

https://doi.org/10.46460/ijiea.1165351

Abstract

Deformations in mining areas have been started to be monitored by satellite SAR-based methods, which have recently emerged as an alternative to classical methods (GNSS receivers, Geometric Leveling, Terrestrial Lidar, UAV Photogrammetry, etc.). The most important advantage of this method is that quite wide areas can be monitored remotely. However, the mentioned way also has some disadvantages. The first of these; deformations can only be determined in the direction of the Satellite Line Of Sight (LOS), and the second one is that there is no correlated reflective surface due to the continuous change of topography in the locations where mining activities are carried out. Within the framework of this study, it is aimed to monitor PS by placing corner reflectors (CR) in the locations where sufficient Permanent Scatterer (PS) cannot be produced in Kalburçayırı and Hamal Coal Fields of Kangal Thermal Reactor Elektric production A.Ş. By considering the area through Sentinel-1A/B satellites, new PSs constituted by employing the CR facility has been successfully observed in locations, where PS could not be produced before. The results show us that; placing corner reflectors in locations where sufficient PS cannot be made or not determined at all, increases the number and quality of PS positively.

Keywords

Deformation, InSAR, Corner Reflector (CR), Mine Sites, Permanent Scatterer (PS)

Maden Sahalarında Köşe Reflektör (CR) Tesisi ve Sabit Saçıcı (PS) Kontrolü

Abstract

Maden sahalarındaki deformasyonlar son zamanlarda, klasik yöntemlerin (GNSS alıcıları, Geometrik Nivelman, Yersel Lidar ve İHA Fotogrametresi vb.) alternatifi olarak ortaya çıkmaya başlayan uydu SAR tabanlı yöntemler ile izlenmeye başlanmıştır. Bu yöntemin en önemli avantajı, oldukça geniş alanların, alansal olarak uzaktan izlenebiliyor olmasıdır. Buna rağmen yöntem, bazı dezavantajlar da içermektedir. Bunlardan ilki; deformasyonların sadece uydu bakış doğrultusu yönünde (LOS) belirlenebiliyor olması, ikincisi ise maden kazı faaliyetlerinin bulunduğu lokasyonlarda topoğrafyanın sürekli değişimine bağlı olarak eşlenik yansıtıcı yüzey bulunamamasıdır. Bu çalışma kapsamında, Kangal Termik Santral Elektrik Üretim A.Ş.’nin Kalburçayırı ve Hamal Kömür sahalarında sabit saçıcı (PS) olmayan lokasyonlara, köşe reflektörler (CR) yerleştirilerek PS takibi amaçlanmıştır. Sentinel-1A/B uyduları vasıtası ile saha takip edilerek daha önce PS üretilemeyen lokasyonlarda CR tesisi ile oluşan yeni PS’ler başarı ile gözlemlenmiştir. Sonuçlar bize göstermiştir ki; yeterince PS üretilemeyen veya hiç görülmeyen lokasyonlara köşe reflektör yerleştirilmesi, PS sayısını ve kalitesini olumlu yönde artırmaktadır.

Keywords

Deformasyon, InSAR, Köşe Reflektör (CR), Maden Sahaları, Sabit Saçıcı (PS)

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