Abstract
Improved Non Mutual Information based Multi-path Time Delay Estimation
Highlights
IntroductionMultipath is a phenomena which regularly occurs in radar, sonar, reverberation environment
Multipath is a phenomena which regularly occurs in radar, sonar, reverberation environment. Their occur rence is usually undesirable. It necessary to find the parameters of the multipath signal such as attenua tion, time delay etc., which finds application in acoustic echo cancellation[13], seismography, underwater acoustics, source localization, tracking of cameras
From the above it is found that the non mutual information based TDE is very apt for noisy and multipath acoustic environment
Summary
Multipath is a phenomena which regularly occurs in radar, sonar, reverberation environment. In[17] a time delay estimation is proposed using non mutual informa tion and a comparison of TDE using joint entropy, mutual information and non mutual information is made and it is concluded that all the above perform well in background noise and non mutual information based TDE outper form the joint and mutual information under reverberant condition. From the above it is found that the non mutual information based TDE is very apt for noisy and multipath acoustic environment. In this paper we propose a math ematical frame work that estimates the time delay even in adverse noisy condition.
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