A Portuguese radar tracking sensor for Space Debris monitoring

Pandeirada, João; Bergano, Miguel; Marques, P. V. S.; Barbosa, Domingos; Coelho, Bruno; Ribeiro, V. A. R. M.; Freitas, J. de A. D. de; Nunes, Domingos Sávio; Eduardo, José

doi:10.48550/arxiv.2111.02232

Cited by 1 publication

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“…These experiments led to several studies on the design of waveforms and signal processing chains for the system [5] (Section 4) [7]. The studies culminated in the first real-life scenario tests, where the whole system (except the antenna and power amplifiers) was tested in a setup with a major reflector at a well-defined distance [8]. After completing the preliminary functional tests in the lab and the field, we proceeded to the deployment phase.…”

Section: Atlas: Overview and Current Statusmentioning

confidence: 99%

“…The complex exponential term at the end of Equation ( 7) can be developed into e −j 4π(r 0 +vr ts ) λ = e −j 4πr 0 λ e −j2π f D t s , (8) where f D = 2v r λ is the Doppler shift. The sequence of phase-change terms along the slow time forms a complex sinusoid at the Doppler frequency and is sometimes called the spatial Doppler signal.…”

Section: Signal Modelmentioning

confidence: 99%

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ATLAS: Latest Advancements and First Observations

Pandeirada,

Bergano,

Marques

et al. 2024

Remote Sensing

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The increasing amount of space debris poses a significant threat to operational satellites and space-based services. This article updates the community on the current status of the development of ATLAS, a tracking radar that is part of the EUSST network and aims to detect space objects in low Earth orbits. This article focuses on the latest activities performed: calibration of the pointing system and initial observations of space objects. The calibration procedure consisted of cross-scanning the Solar disk and yielded great results, obtaining an offset of 5.3° in azimuth and 0.10° in elevation. The first observation campaign resulted in 33 range detections of the International Space Station (ISS) with a probability of false alarm of 10−9. The observations were then used to readjust the radar equation to assess the real-world performance of the system.

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Section: Atlas: Overview and Current Statusmentioning

confidence: 99%

Section: Signal Modelmentioning

confidence: 99%