Octavian Thor Pleter and Cristian Emil Constantinescu, and Barna Istvan Jakab, University Politehnica of Bucharest, 060042 Bucharest, Romania
Abstract: In the aftermath of the disappearance of the Malaysian 370 (MH370) flight in March 2014, new positioning methods were employed to establish the search area. In the absence of all other positioning technologies (Transponder, Radio communications, Radar), these innovative methods are based on the handshake signals between an INMARSAT satellite and the satellite transceiver on board the aircraft. The log of these signals was made public in order for the scientific community to engage in solving the mystery of the MH370 trajectory. The log indicates the delay between the interrogation and response signals, as well as the relative velocity indications, based on the shift of the carrier frequency due to the Doppler-Fizeau effect. This paper puts forward an original, independent and accurate positioning method and allows the calculation of the MH370 trajectory considering the wind vector field that day, the accurate satellite orbit and an accurate model of the Earth (the WGS-84 ellipsoid). The results were compared to other results published, indicating a different final position of the aircraft from the locations of the published search area.
Download full article here.
The article won the Richey Medal 2017 of the Royal Institute of Navigation, London.
Following the B.E.F. from 13.10.2021 it was approved the extension of the period for submitting the files for scholarships until 20.10.2021, at 16:00.
<< Guide for assigning homework for the 2021 diploma exam >> << Guide to allocate research topics 2021 >>
We inform you that any change of group, after the beginning of the academic year, creates problems in the Moodle course site and in the Teams website, leading to the loss of access to courses and seminars. That is why such changes will not be approved and will not be...
SpaceX and NASA are targeting Friday, April 23 for Falcon 9’s launch of Dragon’s second six-month operational crew mission (Crew-2) to the International Space Station (ISS) from historic Launch Complex 39A (LC-39A) at NASA’s Kennedy Space Center in Florida
<< SpaceX and NASA are targeting Friday, April 23 for Falcon 9’s launch of Dragon’s >>
PO privind acordarea burselor si a altor forme de sprijin material pentru studenti PO privind cazarea studentilor in camine PO privind circuitul documentelor PO privind completarea registrului matricol pentru ciclul de studii de licenta PO privind completarea...
<< The decision of the Senate regarding the organization of the examination session from the first semester of the academic year 2020-2021 >>
Carrying out teaching activities exclusively online for weeks 12, 13 and 14 of the academic year 2020-2021
<< Senate decision regarding the development of teaching activities exclusively online for weeks 12, 13 and 14 of the academic year 2020-2021 >>
<< Guide for assigning topics for the diploma exam >>
Considering that all the results of the verification have been announced, we are waiting until May 30, at 8 pm, on the faculty mail, proposals for data to reschedule these subjects (year 4, second semester) for week 01.06-05.06.2020. The proposal will contain the name...
On 27.05.2020 at 16:00 PhD candidate Stefan ANTON will defend his thesis with title "Proiectarea și construirea unor machete la o scară favorabilă pentru a verifica pe rând criteriile de similitudine în vederea obținerii unor coeficienți de corecție în proiectarea...