Pasture Biomass Estimation using Acoustics

The ability to accurately estimate pasture biomass can have a significant impact of profitability for farmers. An ultrasonic array pasture biomass estimation sensor was developed through an MBIE collaborative project (with University of Auckland, AgResearch, and Gallaghers).

Researchers:

Dr Mathew Legg (Research Lead)

Publications and Patents in Pasture Biomass Estimation:

  1. M. Legg and S. Bradley, “Ultrasonic arrays for remote sensing of pasture biomass,” Remote Sensing, vol. 12, no. 1, 2019. (dio:10.3390/rs12010111).
  2. M. Legg and S. Bradley, “Ultrasonic proximal sensing of pasture biomass,” Remote Sensing, vol. 11, no. 20, 2019. (dio:10.3390/rs11202459).
  3. S. Bradley and M. Legg, “Systems, apparatus and methods for vegetation measurement,” 28 May 2019. Patent No.753949, Gallagher Group Limited, New Zealand.
  4. S. Bradley and M. Legg, “Vegetation measurement apparatus, systems, and methods,” 28 Feb. 2019. Patent No.2019201425, Applicant: Gallagher, Australia Group Limited.
  5. S. Bradley and M. Legg, “Adaptable beam-width ultrasound array for remotely sensing vegetation properties,” in Internoise, Madrid, Spain, 16–19 Jun. 2019.
  6. S. Bradley and M. Legg, “Precision ultrasonic sonar for pasture biomass,” in The 12th European Conference on Precision Agriculture, Montpellier, France, 8-11 July 2019.
  7. S. Bradley, L. Panton, and M. Legg, “Dynamic beam forming using chirp signals,” in 7th Berlin Beamforming Conference 2018 (BeBeC 2018), Berlin, Germany, 5–6 Mar. 2018.
  8. M. Legg and S. Bradley, “Low-frequency highly directional air coupled ultrasound sensor,” in 24th International Congress on Sound and Vibration (ICSV24), London, UK, 23–27 Jul. 2017.