LEO Uydu Takımyıldızları için Alanlar Arası Transfer Öğrenmesi: Benzerlik Tabanlı Çoklu Kaynak Yaklaşımı

Yıl 2025, ERKEN GÖRÜNÜM, 1 - 1

Mustafa Serdar Osmanca

https://doi.org/10.2339/politeknik.1783547

Öz

Starlink, OneWeb ve Iridium gibi Alçak Dünya Yörüngesi (LEO) uydu takımyıldızlarının hızlı genişlemesi, küresel bağlantı için büyük fırsatlar yaratırken yörünge tahmini, trafik yönetimi ve kaynak tahsisi gibi alanlarda önemli zorluklar ortaya çıkarmıştır. Geleneksel yörünge yayılım modelleri (ör. SGP-4) ve fizik tabanlı yaklaşımlar, atmosferik sürtünme, uzay havası ve yörünge heterojenliği nedeniyle genellikle gerekli doğruluğu sağlayamamaktadır. Makine öğrenimi (ML) teknikleri tahmin doğruluğunu artırmada güçlü bir potansiyele sahip olsa da, büyük ve kaliteli veri kümelerine bağımlılıkları yeni veya gelişmekte olan takımyıldızlar için sınırlayıcıdır. Bu çalışma, heterojen takımyıldızlar arasındaki yörünge benzerliklerinden yararlanarak minimum hedef veriyle doğru yörünge periyodu tahmini sağlayan benzerlik tabanlı çok kaynaklı transfer öğrenimi (MSTL) çerçevesini sunmaktadır. Performansı %461’e kadar düşürdüğü gösterilen geleneksel fizik tabanlı özellik mühendisliğinden farklı olarak, yöntemimiz Two-Line Element (TLE) verilerinden doğrudan çıkarılan minimalist bir özellik seti (yükseklik, eğim, eksantriklik) kullanır. Benzerlik odaklı kaynak seçimi ve filtrelenmiş çoklu bilgi entegrasyonu sayesinde, önerilen çerçeve yalnızca 25 etiketli hedef örnekle tahmin hatasını %88,2 azaltır (RMSE = 0,045 dk, R² = 0,9972). Sonuçlar, alan farkındalıklı benzerlik filtrelemenin karmaşık özellik mühendisliğinden daha iyi performans gösterdiğini ve fizik tabanlı alanlarda transfer öğrenimine dair geleneksel varsayımları sorguladığını ortaya koymaktadır. Çalışma, yeni LEO operatörleri için ölçeklenebilir, hesaplama açısından verimli ve pratik bir çözüm sunarak kapsamlı veri toplama gereksinimini ortadan kaldırır.

Anahtar Kelimeler

Transfer Öğrenimi , LEO Uyduları , Alan Uyarlama , Yörünge Tahmini , Uydu Konstellasyonları

Cross-Domain Transfer Learning for LEO Satellite Constellations: A Similarity-Based Multi-Source Approach

Öz

The rapid expansion of Low Earth Orbit (LEO) satellite constellations such as Starlink, OneWeb, and Iridium has created new opportunities for global connectivity while introducing major challenges in orbit prediction, traffic management, and resource allocation. Traditional orbit propagation models (e.g., SGP-4) and physics-informed approaches often fail to meet accuracy requirements due to atmospheric drag, space weather, and orbital heterogeneity. Although machine learning (ML) techniques show strong potential for improving prediction accuracy, their dependence on large, high-quality datasets limits their applicability to new constellations. This paper presents a similarity-based multi-source transfer learning (MSTL) framework that leverages orbital similarities across heterogeneous constellations to enable accurate orbital period prediction with minimal target data. Unlike conventional physics-informed feature engineering, which can degrade performance by up to 461%, our method employs a minimalist feature set (altitude, inclination, and eccentricity) directly extracted from Two-Line Element (TLE) data. Through similarity-driven source selection and filtered multi-source knowledge integration, the proposed framework reduces prediction error by 88.2% (RMSE = 0.045 min, R² = 0.9972) using only 25 labeled samples from the target constellation. The findings show that domain-aware similarity filtering outperforms complex feature engineering, challenging conventional assumptions about transfer learning in physics-based domains. This work offers a scalable, efficient, and practical solution for emerging LEO operators, enabling rapid model development without extensive data collection.

Anahtar Kelimeler

Transfer Learning , LEO Satellites , Domain Adaptation , Orbital Prediction , Satellite Constellations

Kaynakça

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