BLIND separation
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
shibin.sree
Active In SP
**

Posts: 42
Joined: Aug 2009
#1
18-12-2009, 04:04 PM


BLIND separation of independent sources has receiveda great deal of attention due to various applications inscience and technology. The problem of blind source separation(BSS) and/or ICA has been studied by many researchers inthe fields of neural networks and statistical signal processing[1]“[5], [9], [15], [16], [18], [22], [26], [31], [36] during thepast ten years, and many interesting theoretical and practicalresults have been achieved.This paper is organized as follows. A robust prewhitening technique with noise reduction and a cross-validation technique with optimal dimensionality reduction are presented in Section II. The parameterized t-distribution model and its robust properties, as well as the stability of the developed algorithm are presented in Section III. Experimental results using this new approach on artificially synthesized data and real-world unaveraged single-trial MEG data are presented in Section Invite MEG data are from an experiment studying the auditory evoked fields (AEF) task.


Attached Files
.doc   re rtop.doc (Size: 3.21 MB / Downloads: 63)
Reply
electronics seminars
Active In SP
**

Posts: 694
Joined: Nov 2009
#2
18-12-2009, 09:06 PM

ABSTRACT
In this paper, we propose a robust approach for independent component analysis (ICA) of signals that observationsare contaminated with high-level additive noise and/or outliers.The source signals may contain mixtures of both sub-Gaussianand super-Gaussian components, and the number of sources is unknown. Our robust approach includes two procedures. In the first procedure, a robust prewhitening technique is used to reduce the power of additive noise, the dimensionality and the correlation among sources. A cross-validation technique is introduced to estimate the number of sources in this first procedure. In the second procedure, a nonlinear function is derived using the parameterizedt-distribution density model. This nonlinear function is robust against the undue influence of outliers fundamentally. Moreover, the stability of the proposed algorithm and the robust property of misestimating the parameters (kurtosis) have been studied. By combining the t-distribution model with a family flight-tailed distributions (sub-Gaussian) model, we can separate the mixture of sub-Gaussian and super-Gaussian source components. Through the analysis of artificially synthesized data and real-world magneto encephalographic (MEG) data, we illustrate the efficacy of this robust approach.
Index Terms”Cross-validation method, independent component analysis (ICA), parametric estimation method, principal component analysis (PCA), robust prewhitening, t-distribution density model, unvaried single-trial MEG data analysis.
Use Search at http://topicideas.net/search.php wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion
Reply

Important Note..!

If you are not satisfied with above reply ,..Please

ASK HERE

So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page

Quick Reply
Message
Type your reply to this message here.


Image Verification
Please enter the text contained within the image into the text box below it. This process is used to prevent automated spam bots.
Image Verification
(case insensitive)

Possibly Related Threads...
Thread Author Replies Views Last Post
  artificial vision systems for the blind using ultrasonic wave jaseelati 0 272 07-01-2015, 02:49 PM
Last Post: jaseelati
  BLIND ASSISTANT NAVIGATION SYSTEM seminar ideas 51 19,102 07-03-2014, 04:32 PM
Last Post: seminar project topic
  Smartphone for Blind People ppt seminar projects maker 0 560 28-09-2013, 12:21 PM
Last Post: seminar projects maker
  ULTRA-CANE - AN INTELLIGENT TOOL FOR BLIND WITH AI TECHNIQUES project girl 1 668 01-12-2012, 01:15 PM
Last Post: nagatejaswee
  KIRAN : Helping Cane for the blind people seminar flower 0 462 03-10-2012, 05:36 PM
Last Post: seminar flower
  ADAPTIVE BLIND NOISE SUPPRESSION IN SOME SPEECH PROCESSING APPLICATIONS PPT seminar flower 0 495 18-09-2012, 01:22 PM
Last Post: seminar flower
  Blind signature project uploader 0 360 14-08-2012, 01:33 PM
Last Post: project uploader
  BLIND CONSTELLATION ESTIMATION AND DETECTION USING CLUSTER ANALYSIS seminar ideas 0 396 22-05-2012, 05:32 PM
Last Post: seminar ideas
  AN INTELLIGENT BLIND ROD AND NAVIGATION PLATFORM BASED ON ZIGBEE TECHNOLOGY seminar ideas 0 487 19-05-2012, 11:06 AM
Last Post: seminar ideas
  Electronic Blind Mobility Aid using PSoC project uploader 0 566 16-04-2012, 04:57 PM
Last Post: project uploader