Memorias de investigación
Communications at congresses:
Virtual MIMO RADAR using OFDM-CDM Waveforms
Year:2008
Research Areas
  • Processing and signal analysis
Information
Abstract
This paper addresses a new perspective on the exploitation of diversity resembling recent seminal proposals with multiple antennas known as MIMO radar. Our focus pursues similar advantages as spatial MIMO systems but intending to achieve the desired resistance over fading or/and SNR increase without relying on multiple antennas. We design an OFDM-CDM waveform well inspired in modern communications systems that creates a virtual MIMO system operating on the artificial 2D domain formed by a set of well separated carriers (OFDM) and several OFDM symbols each one modulated by orthogonal codes (CDM). We consider the most general scenario with moving targets and large size targets originating an equivalent time variant and frequency selective channel model. Our proposal proceeds in two steps, a first one to reorthogonalize the transmitted set of OFDM signal by proper time and frequency synchronization (this stage provides range and velocity estimators), and a second one based on Neyman Pearson detection improved by the diversity gain.
International
Si
Congress
RadarCon 2008: IEEE Radar Conference 2008
960
Place
Roma, Italia
Reviewers
Si
ISBN/ISSN
978-1-4244-1538-0
Start Date
26/05/2008
End Date
30/05/2008
From page
1
To page
5
Virtual MIMO RADAR using OFDM-CDM Waveforms
Participants
  • Autor: Jesús Grajal de la Fuente UPM
  • Autor: Benjamín Béjar Haro UPM
  • Autor: Santiago Zazo Bello UPM
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Aplicaciones del Procesado de Señal (GAPS)
  • Departamento: Señales, Sistemas y Radiocomunicaciones