Complex hydrophone calibrations using pseudo‐Gaussian noise signals

Validation of primary hydrophone calibrations by inter-laboratory comparisons and by independent calibration methods

Adaptive Filtering Strategy to Remove Noise from ECG Signals Using Wavelet Transform and Deep Learning

Introduction: Electrocardiogram (ECG) is a method to measure the electrical activity of the heart which is performed by placing electrodes on the surface of the body. Physicians use observation tools to detect and diagnose heart diseases, the same is performed on ECG signals by cardiologists. In particular, heart diseases are recognized by examining the graphic representation of heart signals w...

Adaptive Filtering Strategy to Remove Noise from ECG Signals Using Wavelet Transform and Deep Learning

Introduction: Electrocardiogram (ECG) is a method to measure the electrical activity of the heart which is performed by placing electrodes on the surface of the body. Physicians use observation tools to detect and diagnose heart diseases, the same is performed on ECG signals by cardiologists. In particular, heart diseases are recognized by examining the graphic representation of heart signals w...

Noise Localization Method for Model Tests in a Large Cavitation Tunnel Using a Hydrophone Array

Model tests are performed in order to predict the noise level of a full ship and to control its noise signature. Localizing noise sources in the model test is therefore an important research subject along with measuring noise levels. In this paper, a noise localization method using a hydrophone array in a large cavitation tunnel is presented. The 45-channel hydrophone array was designed using a...

Coherent Signals DOA Estimation in the Presence of Complex Noise

A new direction of arrival (DOA) estimation method is proposed for situations where coherent sources exist. With this algorithm,the coherent and incoherent sources are estimated separately. The coherent sources can be estimated by exploiting the symmetry of the array geometry to avoid a significant loss in array aperture and the high computation of the conventional transformation method based o...