Helmert–Wolf blocking

Helmert-Wolf blocking is a method used in survey geodesy and geospatial analysis for processing and adjusting measurements made on a network of points. It is named after the geodesists Friedrich Helmert and Paul Wolf, who contributed to the development of techniques for adjusting geodetic networks. In essence, Helmert-Wolf blocking is a strategy for dividing a large network of observations into smaller, more manageable segments or blocks.