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Detalhes

Detalhes

  • Nome

    Rui Manuel Coutinho
  • Cargo

    Assistente de Investigação
  • Desde

    01 junho 2022
  • Nacionalidade

    Portugal
  • Contactos

    +351220414164
    rui.m.coutinho@inesctec.pt
Publicações

2022

Contactless Soil Moisture Mapping Using Inexpensive Frequency-Modulated Continuous Wave RADAR for Agricultural Purposes

Autores
Coutinho, RM; Sousa, A; Santos, F; Cunha, M;

Publicação
APPLIED SCIENCES-BASEL

Abstract
Soil Moisture (SM) is one of the most critical factors for a crop's growth, yield, and quality. Although Ground-Penetrating RADAR (GPR) is commonly used in satelite observation to analyze soil moisture, it is not cost-effective for agricultural applications. Automotive RADAR uses the concept of Frequency-Modulated Continuous Wave (FMCW) and is more competitive in terms of price. This paper evaluates the viability of using a cost-effective RADAR as a substitute for GPR for soil moisture content estimation. The research consisted of four experiments, and the results show that the RADAR's output signal and the soil moisture sensor SEN0193 have a high correlation with values as high as 0.93 when the SM is below 15%. Such results show that the tested sensor (and its cost-effective working principle) are able to determine soil water content (with certain limitations) in a non-intrusive, proximal sensing manner.