Wavelet-based time-delay estimation for time-resolved turbulent flow analysis
نویسندگان
چکیده
منابع مشابه
A GCC Time Delay Estimation Algorithm Based on Wavelet Transform
This paper introduces a new time delay estimation(TDE) algorithm, which applies the discrete wavelet transform and generalized cross-correlation(GCC). This algorithm first handles separately the signals received by the two microphones with wavelet transform, then under each scale, applying separately GCC to estimate the time delay in the wavelet threshold. At last, getting the final result by t...
متن کاملApplication of Model-Based Estimation to Time-Delay Estimation of Ultrasonic Testing Signals
Time-Delay-Estimation (TDE) has been a topic of interest in many applications in the past few decades. The emphasis of this work is on the application of model-based estimation (MBE) for TDE of ultrasonic signals used in ultrasonic thickness gaging. Ultrasonic thickness gaging is based on precise measurement of the time difference between successive echoes which reflect back from the back wall ...
متن کاملTime Delay Estimation Based On
This paper proposes a new time delay estimation model, Summary Cross-correlation Function (SCCF). It is based on a hearing model of the human ear, which comes from a pitch perception model. The inherent relation between some time delay estimation (TDE) and pitch perception method is mentioned, and propose an idea some pitch perception models’ pre-processing can be used for references in TDE mod...
متن کاملTensor-Based Approach for Time-Delay Estimation
Multipath (ML) signals reflected from the surrounding objects of a Global Navigation Satellite Systems (GNSS) receiver lead to a bias in the time-delay estimation of the lineof-sight (LOS) signal. In several cases, this bias is reflected as errors in the pseudo-range estimation of the receiver. In this paper, we derive a tensor-based filtering approach using an antenna array and a compression m...
متن کاملOn wavelet denoising and its applications to time delay estimation
In this correspondence, the application of dyadic wavelet decomposition in the context of time delay estimation is investigated. We consider a model in which the source signal is deterministic and the received sensor outputs are corrupted by additive noises. Wavelet denoising is exploited to provide an effective solution for the problem. Denoising is first applied to preprocess the received sig...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Review of Scientific Instruments
سال: 2001
ISSN: 0034-6748,1089-7623
DOI: 10.1063/1.1326009