1THROUGH THE WALL DETECTION

AN EXPERIMENTAL STUDY

GUIDED BY,ASST.PROF.KEERTHI KRISHNAN K

GROUP MEMBERS,ARJUNRAVI TK

MANU A MOHAN MANJU CHANDRAN

M.C.GOVINDMIDHUN VIJAYAN

2INTRODUCTION

THROUGH THE WALL HUMAN DETECTION IS OF INTEREST IN MILITARY,DISASTER MANAGEMENT AND RESCUE OPERATIONS.

THE PROJECT AIMS TO CONDUCT AN EXPERIMENTAL STUDY ON THROUGH THE WALL HUMAN DETECTION USING USRP AS A TOOL.

3KEY IDEA

USRP

4PROGRESS OF THE PROJECT

USRP – THE UNIVERSAL SOFTWARE DEFINED RADIO PERIPHERAL, WAS TAKEN AS THE TOOL TO TRANSMIT AND RECEIVE SIGNALS.

USRP 2932 IS USED , WHICH CAN TRANSMIT AND RECEIVE SIGNALS OF THE RANGE 400 MHz TO 4.4GHz

LAB VIEW IS THE INTERFACING SOFTWARE SINCE IT WAS COMPATABLE WITH USRP

5CONT…

FOR FURTHER SIGNAL PROCESSING MATLAB IS USED WE HAVE SELECTED TO TRANSMIT A PULSE OF 1GHZ FREQUENCY THE TRANSMITTER AND RECIEVER PART OF THE USRP WAS DESIGNED

AND IMPLEMENTED USING LABVIEW.

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CONT…

IN THE FIRST PHASE OF THE PROJECT, IMPLEMENTED THE TRANSMISSION AND RECEPTION OF THE SINE

WAVE OF 1GHz. THE REFLECTED SIGNAL FROM A HUMAN TARGET WAS ALSO

OBTAINED. DATA SETS FOR THE HUMAN DETECTION WITHOUT OBSTACLE WAS

TAKEN AND THE MAGNITUDE RESPONSE OF THE RECEIVED SIGNAL WHICH INDICATES THE PERIODICITY OF HEART BEAT WAS PLOTTED.

7HEART BEAT DETECTION

8DFT PLOT

9FUTURE WORKS

CLEAR ESTIMATE AND DATA SETS FOR THE PRESENCE AND ABSENCE OF HUMAN BEING THROUGH THE WALL WILL BE PLOTTED.

TO DEVELOP PLOTS WHICH CAN CLEARLY INDICATE HUMANS AND WHICH CAN BE FURTHER SUBJECTED TO FUTURE WORKS TO DEVELOP A SYSTEM TO DETECT HUMAN TARGETS FROM UNDER THE BUILDING RUBBLES.

IMPLEMENT CLUTTER REDUCTION TECHNIQUES

10CLUTTER REMOVAL TECHNIQUES

Singular Value Decomposition (SVD) Factor Analysis Principal Component Analysis (PCA) Independent Component Analysis (ICA)

11REFERENCE

Sukhvinder Singh, Qilian Liang, Dechang Chen and Li Sheng Sense through wall human detection using UWB radar, EURASIP Journal on Wireless Communications and Networking,2011:20http://jwcn.eurasipjournals.com/content/2011/1/20

Qilian Liang, Biologically-Inspired Target Recognition in Radar Sensor Networks, EURASIP Journal on Wireless Communications and Networking,.Paper ID: 523435, vol. 2010

J Liang, Signal processing in radar and non-radar sensor networks. PhD Dissertation, The University of Texas at Arlington http://dspace.uta.edu/handle/10106/1727 August 2009

AG Yarovoy, LP Ligthart, J Matuzas, B Levitas, UWB radar for human being detection. IEEE Aerospace and Electronic Systems Magazine. 21(3), 10–14 (Mar. 2006). doi:10.1109/MAES.2006.1624185

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THANK YOU…