Least‐squares time‐delay estimation for transient signals in a multipath environment

1992 ◽  
Vol 92 (1) ◽  
pp. 210-218 ◽  
Author(s):  
R. J. Vaccaro ◽  
C. S. Ramalingam ◽  
D. W. Tufts ◽  
R. L. Field
Keyword(s):  
Time Delay ◽  
Least Squares ◽  
Time Delay Estimation ◽  
Delay Estimation ◽  
Transient Signals ◽  
Multipath Environment

A Sound Sources Locating Method of Constrained Least Squares Based on Time Delay Estimation

2011 ◽  
Vol 130-134 ◽  
pp. 2019-2022
Author(s):  
Shu Jing Su ◽  
Hai Li Zhang
Keyword(s):  
Time Delay ◽  
Least Squares ◽  
Least Squares Method ◽  
Target Position ◽  
Time Delay Estimation ◽  
Velocity Estimation ◽  
Delay Estimation ◽  
Limited Data ◽  
Sound Sources ◽  
Positioning Method

The sound sources positioning method based on time delay estimation is through the iteration of a group of nonlinear equation to solve the target position. Most of the existing methods is to solve under the hypothesis that the sound spread velocity in air is known. This paper puts forward several effective methods of source orientation and propagation velocity estimation. These methods are only using the time delay which comes from the received signal between sensors separated in space to deduce the solving method of sound source location and sound’s speed estimation based on least squares, total least squares, limited data not sure and constraint least squares method, and then compare the characteristics of these methods through the computer simulation.

A least-squares algorithm for multipath time-delay estimation

1994 ◽  
Vol 42 (11) ◽  
pp. 3229-3233 ◽  
Author(s):  
T.G. Manickam ◽  
R.J. Vaccaro ◽  
D.W. Tufts
Keyword(s):  
Time Delay ◽  
Least Squares ◽  
Time Delay Estimation ◽  
Delay Estimation ◽  
Least Squares Algorithm
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