Source: https://tendernation.io/opportunities/01a13bc7-258e-7324-aa23-c10cb64f0dda/fiducial-reference-measurement-for-vegetation awarded GB open procedure # Fiducial Reference measurement for Vegetation [NPL Management Limited](https://tendernation.io/buyers/npl-management-limited) Estimated value Not stated Published 7 Nov 2025 Deadline Rolling deadline ## Who can bid - Open procedure Anyone can submit a full tender; there is no shortlisting stage. ## About this tender ### Material Selection & Optical Characterisation Identify and test materials for the THEMIS calibration target. Measure bidirectional reflectance distribution function (BRDF) properties. ### Simulation of Target Reflectance & Uncertainty Use Eradiate software to simulate BRDF and HCRF (Hemispherical-Conical Reflectance Factor). Quantify uncertainties based on material and manufacturing tolerances. ### Experimental Field Campaigns Conduct UAV-based measurements of the artificial target. Validate protocols for UAV-based HCRF acquisition. ### Data Processing & BRF Retrieval Process UAV data to derive BRF values. Compare retrieved BRF with simulated values and assess accuracy. Source Find a Tender (UK) · Notice ocds-h6vhtk-05dca1-2025-11-07T11:43:12Z [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-05dca1-2025-11-07T11:43:12Z) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile NPL Management Limited: past awards and live tenders](https://tendernation.io/buyers/npl-management-limited) ## More tenders like this [Bannister Sports Centre Athletic Track Soft Market Testing Exercise · Harrow Council · 38 days left · 26 Nov 2026](https://tendernation.io/opportunities/01a1540d-d9e4-71cb-ad57-1603e9042fec/bannister-sports-centre-athletic-track-soft-market-testing-exercise) [Preliminary Market Engagement - Corporate Enterprise Resource Planning (ERP) · North East Lincolnshire Borough Council · 21 days left · 9 Nov 2026](https://tendernation.io/opportunities/01a15410-bf5e-72d1-8225-fbabeaba595f/preliminary-market-engagement-corporate-enterprise-resource-planning-erp) [Building Minor Works · Derbyshire Support and Facilities Services Limited · 26 days left · 13 Nov 2026](https://tendernation.io/opportunities/01a15408-9087-7003-bd47-df7bc19d7ff7/building-minor-works) [Oakham Town Centre Flower Displays · Oakham Town Council · 8 days left · 27 Oct 2026](https://tendernation.io/opportunities/01a15408-9125-71df-b9f9-41f15d801548/oakham-town-centre-flower-displays) [Housing Site Identification, Landowner Engagement and Consultancy Services. · Chelmsford City Council · 28 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a15408-95e0-7222-9afc-7a4eb92afb30/housing-site-identification-landowner-engagement-and-consultancy-services) [DGT Helipad Design and Construction · Dartford and Gravesham NHS Trust · 28 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a15408-969e-7140-a307-fe72fa7128be/dgt-helipad-design-and-construction)