NEXA is a research and advanced development project aiming at the development of a generic software platform for real-time and post-process trajectory determination. The platform, also named NEXA, will be GeoNumerics' future navigation software platform.
The NEXA architecture concept is similar to that of GENA (separation between a generic platform and model components). GENA is GeoNumerics' generic and extensible network adjustment system.
NEXA will be a tool to compute static and kinematic solutions from observations made by GNSS receivers, inertial measurement units and other navigation instruments.
The NEXA research deals with advanced prediction, filtering and smoothing techniques based on but different from those of the classical Kalman Filter (KF) and Iterated Extended Kalman Filter (IEKF) and of its many different varieties and flavors.
DINA, “Dynamic networks for trajectory determination in complex environments” (original title in Spanish “Redes Dinámicas para la determinación de trayectorias en entornos complejos”) is a research and development (R&D) project that aims at developing software to demonstrate, in an application relevant environment, the feasibility of trajectory determination with the dynamic network approach for mapping and post-mission trajectory reconstruction.
DINA mainly aims at time-Position-Velocity-Attitude (tPVA) determination with navigation satellite range measurements, inertial measurements and measurements made on “imaging sensor” data, where an “imaging sensor” can be a line, frame camera or a laser scanner. The project, focuses on post-mission processing for optimal precision, accuracy and reliability.