Abstract Sound propagation from wind turbines through the atmosphere has previously been analytically examined numerous studies, but amount of comparisons to measurements is limited. This paper applies three different sound models; The ISO 9613-2 model, Nord2000 ray tracing model and WindSTAR-Pro evaluate noise at receivers in near- far-field a turbine. evaluation performed by accounting for me...

In practice, deep neural networks have been found to be vulnerable various types of noise, such as adversarial examples and corruption. Various defense methods accordingly developed improve robustness for models. However, simply training on data mixed with examples, most these models still fail defend against the generalized noise. Motivated by fact that hidden layers play a highly important ro...

To address the question of the role of nonlinear effects in the propagation of noise radiated by high-power jet aircraft, extensive measurements were made of the F-22A Raptor during static engine run-ups. Data were acquired at low-, intermediate-, and high-thrust engine settings with microphones located 23-305 m from the aircraft along several angles. Comparisons between the results of a genera...

The Markov Random Field (MRF) theory provides a consistent way for modeling context dependent entities such as image pixels. Trying to solve the image restoration problem in the MRF framework is an optimization problem that is NP hard, and approximation techniques like the belief propagation methods are proposed. The problem of the belief propagation is its inefficiency. In this project, I impl...

One-dimensional arrays of nonlinear electronic circuits are shown to support propagation of pulses when operating in a locally bistable regime, provided the circuits are under the influence of a global noise. These external random fluctuations are applied to the parameter that controls the transition between bistable and monostable dynamics in the individual circuits. As a result, propagating f...

An investigation of the effect of substrate loss on simultaneous switqhing noise (SSN) in on-chip power distribution networks is presented. In order to characterize the multi-layered power buses accurately for onship sdtching noise simulation, modeling of VddlGround rails over finite-resistivity substrates should include dielectric loss. The complete circuit model of power rails are then repres...

Since the direct numerical simulation (DNS) of aeroacoustic noise requires the numerical solution of the compressible Navier-Stokes equations in a large computational domain, it is computationally too demanding to solve computational aeroacoustics (CAA) applications using this technique only. In this paper a number of different hybrid approaches, where the computational domain is split into a s...

The usage of Computational Fluid Dynamics (CFD) in noise prediction typically has been a two part process: accurately predicting the flow conditions in the near-field and then propagating the noise from the near-field to the observer. Due to the increase in computing power and the cost benefit when weighed against wind tunnel testing, the usage of CFD to estimate the local flow field of complex...