In passive sonars, distance and depth estimation of underwater targets is often limited by the accuracy time delay estimations. The existing methods uniform discrete grid (signal sampling rate). When a true out grid, deteriorates due to mismatch between real-time grid. This paper proposes new method for estimation, which realizes under framework variational Bayesian inference. proposed grid-les...

Information on the water vapor distribution of troposphere is useful for weather monitoring and forecast. Water can be estimated from tropospheric delays produced by high-grade Global Navigation Satellite System (GNSS) receivers. This type techniques currently used in data assimilation process Numerical Weather Prediction (NWP) models, especially, limited areas covered these GNSS networks. We c...