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Anomalous Meteor Head Echoes Detected by the MU Radar
Luleå tekniska universitet, Institutionen för system- och rymdteknik, Rymdteknik.
2020 (engelsk)Independent thesis Advanced level (degree of Master (Two Years)), 20 poäng / 30 hpOppgave
Abstract [en]

This study have identified and analysed anomalous meteor head echos detected by the MU Radar, as well as reproduced an interference anomaly through simulation with the use of an existing analysis pipeline. The parameters used to detect anomalies were High Start Altitude [HSAA], High Radar Cross Section [HRCSA] and High Eccentricity [HEA]. A cut-off of the head echo signal were the cause of the HSAA’s. Trail echos misclassified as head echoes and low agreement with the multiple emitter location and signal parameter estimation (MUSIC) method gave rise to the HRCSA’s. The majority of the HEA’s were given a falsely high eccentric- ity due to high beam angle and trail echos detection. Three found HEA’s showed a small possibility of having an hyperbolic orbit. Additionally, a simulation was made which concluded that signal interference will occur between two echos if the range is the same to the radar.

sted, utgiver, år, opplag, sider
2020. , s. 65
HSV kategori
Identifikatorer
URN: urn:nbn:se:ltu:diva-79101OAI: oai:DiVA.org:ltu-79101DiVA, id: diva2:1433737
Eksternt samarbeid
Institutet för Rymdfysik
Fag / kurs
Student thesis, at least 30 credits
Utdanningsprogram
Space Engineering, master's level (120 credits)
Veileder
Examiner
Tilgjengelig fra: 2020-06-02 Laget: 2020-06-01 Sist oppdatert: 2025-10-22bibliografisk kontrollert

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