4 papers · 1 filter
Geometry-Consistent Bayesian Filtering under Structural Model Uncertainty: A Geometric Projection Particle Filter
Surya Ratna Prakash D, Soumyendu Raha
Nonlinear state estimation under structural model uncertainty remains a fundamental challenge in autonomous Guidance, Navigation, and Control (GNC) systems. Conventional Bayesian f…
Transient Stability of Nonlinear Stochastic Dynamics: A Finite-Amplitude Logarithmic Measure Framework
Surya Ratna Prakash D, Soumyendu Raha
Spacecraft guidance, navigation, and control systems operating during mission-critical phases such as atmospheric entry, powered descent, and planetary landing require reliable ass…
Co-State Based Data Fusion and Risk Aware Filtering for Spacecraft Navigation and Hazard Prediction
Surya Ratna Prakash D, Soumyendu Raha
This paper develops a co-state based fusion frame work for spacecraft navigation, consistency monitoring, and hazard forecasting. A differential algebraic co-state is introduced as…
A graph based advection framework for climate-driven species distribution
Pranali Roy Chowdhury, Soumyendu Raha
Climate change is reshaping species interactions and movement across fragmented landscapes. Despite this, most mathematical models assume random diffusion, overlooking the influenc…