On the use of mm-wave FMCW Radar IF signals in the bi-focusing multi-frequency imaging algorithm

  1. Solano Pérez, José Antonio 1
  2. Ballesteros, Christian
  3. Molina-García-Pardo, José María 1
  4. Rodríguez, José-Víctor 1
  5. Jofre, Lluís
  6. Mateo Aroca, Antonio 1
  1. 1 Universidad Politécnica de Cartagena
    info

    Universidad Politécnica de Cartagena

    Cartagena, España

    ROR https://ror.org/02k5kx966

Actas:
XXXIV Simposio Nacional de la Unión Científica Internacional de Radio

Año de publicación: 2019

Tipo: Aportación congreso

GOOGLE SCHOLAR

Resumen

Frequency Modulated Continuous Wave (FMCW) radars are part of the new sensingdevices installed in vehicles in order to explore the surroundings. Millimetric wave frequencyband provides enough information to apply imaging algorithm. The imaging bi-focusingmulti-frequency algorithm in W-band using FMCW radar has a direct applicability inenhancing detection of concealed weapons, as proximities sensors, to avoid collisionsand pedestrian detection in vehicles. This paper assesses the feasibility of using theIntermediate Frequency (IF) signal provided by homodyne FMCW radar operating in77 GHz as input to millimetric wave bi-focusing monostatic-bistatic multi-frequency algorithmfrom a theoretical point of view and by means of simulation. Additionally, the bi-focusingmulti-frequency algorithm results using FMCW radar are compared with the obtained usingthe theoretical calculation of the scattered field, equivalent to the parameter S21 obtainedfrom a Vector Network Analyzer (VNA).