Projecte matriculat
Títol: Phase-codification of FMCW Radars for interference mitigation in autonomous automotive or aerial vehicles
Director/a: ÚBEDA FARRE, EDUARD
Departament: TSC
Títol: Phase-codification of FMCW Radars for interference mitigation in autonomous automotive or aerial vehicles
Data inici oferta: 02-02-2025 Data finalització oferta: 02-10-2025
Estudis d'assignació del projecte:
DG ENG AERO/SIS TEL
| Tipus: Individual | |
| Lloc de realització: EETAC | |
| Paraules clau: | |
| FMCW Radar, Chirp, Atonomous vehicle, Unmanned vehicle, Interference | |
| Descripció del contingut i pla d'activitats: | |
| In recent years, the advanced design of frequency modulated (FM) continuous wave (CW) Radars has gained a lot of interest because they are very well suited for detection and tracking in traffic environments to enable safe driving for automotive or aerial vehicles because, unlike other available technologies, such as Lidar or video cameras, they can operate under diverse weather conditions. Moreover, the short-range scope of such sensors boarded in vehicles, of several hundreds of meters, prevent the adoption of pulsed Radars, like the ones used in airports for air traffic control, which mainly focus on long distances and cannot detect targets in the very near range. Most of these boarded radars use linear frequency modulated continuous wave schemes (also called Chirp modulation) because the hardware structure of the sensor becomes simple and the bandwidth of the receiver small. However, multiple FMCW radars operating at the same time within the same frequency band are prone to cause mutual interference. Moreover, this mutual interference problem is expected to grow in the future as the vehicles require more radar sensors to better learn the environment around.
One option for mitigating this interference is the application of a phase-codification to the transmitted FMCW waveforms so that they can be distinguished by the receiver from the signals generated by other sensors around. These phase-sequences need to be mutually orthogonal in order to avoid ghost-target detection. In this work, several phase-sequences, such as Hadamard-Walsh or Gold frames, among others, will be programmed and inserted in the FMCW Radar transmitting and matched-filter receiving schemes. A relative comparison of the properties between several orthogonal phase-sequences will be carried out through the Ambiguity function and the main-to-side-lobe level. Furthermore, a realistic simulation on the degradation of the sensor detection of low-level echoes associated with interfering signals with the presence of Gaussian noise. |
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| Orientació a l'estudiant: | |
| The student must know about
+ Radiolocation + Programming with Matlab |
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| Requereix activitats hardware: No | |
| Requereix activitats software: Sí Sistema operatiu: Windows Disc (Gb): 500 | |
| Horari d'atenció a estudiants per a l'assignació de projecte: Divendres de 15h a 17h |
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