Signal Subspace Smoothing Technique for Time Delay Estimation Using MUSIC Algorithm
نویسندگان
چکیده
منابع مشابه
Signal Subspace Smoothing Technique for Time Delay Estimation Using MUSIC Algorithm
In civil engineering, Time Delay Estimation (TDE) is one of the most important tasks for the media structure and quality evaluation. In this paper, the MUSIC algorithm is applied to estimate the time delay. In practice, the backscattered echoes are highly correlated (even coherent). In order to apply the MUSIC algorithm, an adaptation of signal subspace smoothing is proposed to decorrelate the ...
متن کاملSignal Subspace Methods for Delay Estimation in Wireless Cdma Systems
We consider the problem of delay estimation in an asyn-chronous wireless CDMA communication system. The received observations are decomposed into orthogonal signal and noise subspaces via the singular value decomposition (SVD). A class of techniques known as subspace tting techniques is used to estimate the individual user delays by maximizingthe t between the signal subspace and the observed d...
متن کاملSpace Time MUSIC: Consistent Signal Subspace Estimation for Wide-band Sensor Arrays
Wide-band Direction of Arrival (DOA) estimation with sensor arrays is an essential task in sonar, radar, acoustics, biomedical and multimedia applications. Many state of the art wide-band DOA estimators coherently process frequency binned array outputs by approximate Maximum Likelihood, Weighted Subspace Fitting or focusing techniques. This paper shows that bin signals obtained by filter-bank a...
متن کاملAdaptive time delay estimation for sinusoidal signal
An adaptive algorithm is proposed for time delay estimation between sinusoidal signals received at two spatially separated sensors. The idea is to model the differential delay by an FIR lter whose coe cients are samples of a sine function. The delay estimate is updated directly on a sample-by-sample basis using the least mean square method and its convergence behavior and mean square delay erro...
متن کاملTime delay estimation and signal reconstruction using multi-rate measurements
This paper considers the problem of fusing two low-rate sensors (e.g., microphones) for reconstructing one highresolution signal when time delay of arrival (TDOA) is present as well. We show that under certain conditions the phase of the cross-spectrum-density of lowrate measurements becomes independent of the signal in the high-rate front end of the system. We then utilize this fact to demonst...
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: Sensors
سال: 2017
ISSN: 1424-8220
DOI: 10.3390/s17122868