X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/dmems12.git/blobdiff_plain/68ef101fa4f71c2911e9ffa93ceb5e07afb4af88..099b94e08988d44f4f22b13a2da77f029c6ec29a:/dmems12.tex

diff --git a/dmems12.tex b/dmems12.tex
index 51d7344..6a7f646 100644
--- a/dmems12.tex
+++ b/dmems12.tex
@@ -1,8 +1,9 @@
-\documentclass[12pt]{article}
+
+\documentclass[10pt, conference, compsocconf]{IEEEtran}
 %\usepackage{latex8}
 %\usepackage{times}
-\usepackage[latin1]{inputenc}
-\usepackage[cyr]{aeguill}
+\usepackage[utf8]{inputenc}
+%\usepackage[cyr]{aeguill}
 %\usepackage{pstricks,pst-node,pst-text,pst-3d}
 %\usepackage{babel}
 \usepackage{amsmath}
@@ -24,29 +25,38 @@
 
 \newcommand{\tab}{\ \ \ }
 
-%%%%%%%%%%%%%%%%%%%%%%%%%%%% my bib path.
+
+
+\begin{document}
+
+
+%% \author{\IEEEauthorblockN{Authors Name/s per 1st Affiliation (Author)}
+%% \IEEEauthorblockA{line 1 (of Affiliation): dept. name of organization\\
+%% line 2: name of organization, acronyms acceptable\\
+%% line 3: City, Country\\
+%% line 4: Email: name@xyz.com}
+%% \and
+%% \IEEEauthorblockN{Authors Name/s per 2nd Affiliation (Author)}
+%% \IEEEauthorblockA{line 1 (of Affiliation): dept. name of organization\\
+%% line 2: name of organization, acronyms acceptable\\
+%% line 3: City, Country\\
+%% line 4: Email: name@xyz.com}
+%% }
+
 
 
 \title{Using FPGAs for high speed and real time cantilever deflection estimation}
+\author{\IEEEauthorblockN{Raphaël Couturier\IEEEauthorrefmark{1}, Stéphane Domas\IEEEauthorrefmark{1}, Gwenhaël Goavec-Merou\IEEEauthorrefmark{2} and Michel Lenczner\IEEEauthorrefmark{2}}
+\IEEEauthorblockA{\IEEEauthorrefmark{1}FEMTO-ST, DISC, University of Franche-Comte, Belfort, France\\
+\{raphael.couturier,stephane.domas\}@univ-fcomte.fr}
+\IEEEauthorblockA{\IEEEauthorrefmark{2}FEMTO-ST, Time-Frequency, University of Franche-Comte, Besançon, France\\
+\{michel.lenczner@utbm.fr,gwenhael.goavec@trabucayre.com}
+}
+
+
 
-\author{ Raphaël COUTURIER\\
-Laboratoire d'Informatique 
-de l'Universit\'e de  Franche-Comt\'e, \\
-BP 527, \\
-90016~Belfort CEDEX, France\\
- \and Stéphane Domas\\
-Laboratoire d'Informatique 
-de l'Universit\'e de  Franche-Comt\'e, \\
-BP 527, \\
-90016~Belfort CEDEX, France\\
- \and Gwenhaël Goavec\\
-??
-?? \\
-??, \\
-??\\}
 
 
-\begin{document}
 
 \maketitle
 
@@ -61,7 +71,35 @@ BP 527, \\
 
 \section{Introduction}
 
-%% blabla +
+Cantilevers  are  used  inside  atomic  force  microscope  which  provides  high
+resolution images of  surfaces.  Several technics have been  used to measure the
+displacement  of cantilevers  in litterature.   For example,  it is  possible to
+determine        accurately        the        deflection       with        optic
+interferometer~\cite{CantiOptic89},     pizeoresistor~\cite{CantiPiezzo01}    or
+capacitive  sensing~\cite{CantiCapacitive03}.  In  this paper  our  attention is
+focused   on  a  method   based  on   interferometry  to   measure  cantilevers'
+displacements.   In  this  method   cantilevers  are  illiminated  by  an  optic
+source. The interferometry produces fringes on each cantilevers which enables to
+compute the  cantilever displacement.   In order to  analyze the fringes  a high
+speed camera is used. Images need  to be processed quickly and then a estimation
+method  is   required  to  determine   the  displacement  of   each  cantilever.
+In~\cite{AFMCSEM11} {\bf verifier ref}, the authors have used an algorithm based
+on spline  to estimate  the cantilevers' positions.   The overall  process gives
+accurate results  but all the computation  are performed on  a standard computer
+using labview.  Consequently,  the main drawback of this  implementation is that
+the computer is a bootleneck in the overall process. In this paper we propose to
+use a  method based on least  square and to  implement all the computation  on a
+FGPA.
+
+The remainder  of the paper  is organized as  follows. Section~\ref{sec:measure}
+describes  more precisely  the measurement  process. Our  solution based  on the
+least  square   method  and   the  implementation  on   FPGA  is   presented  in
+Section~\ref{sec:solus}.       Experimentations      are       described      in
+Section~\ref{sec:results}.  Finally  a  conclusion  and  some  perspectives  are
+presented.
+
+
+
 %% quelques ref commentées sur les calculs basés sur l'interférométrie
 
 \section{Measurement principles}
@@ -122,7 +160,7 @@ consider the camera actually in use, an exposition time of 2.5ms for
 $1024\times 1204$ pixels seems the minimum that can be reached. For a
 $10\times 10$ cantilever array, if we neglect the time to extract
 pixels, it implies that computing the deflection of a single
-cantilever should take less than 25$µ$s, thus 12.5$µ$s by phase.\\
+cantilever should take less than 25$\mu$s, thus 12.5$\mu$s by phase.\\
 
 In fact, this timing is a very hard constraint. Let consider a very
 small programm that initializes twenty million of doubles in memory
@@ -135,7 +173,7 @@ $3000$ operations.
 
 %% to be continued ...
 
-%% à faire : timing de l'algo spline en C avec atan et tout le bordel.
+%% � faire : timing de l'algo spline en C avec atan et tout le bordel.
 
 
 
@@ -318,9 +356,9 @@ Finally, the whole summarizes in an algorithm (called LSQ in the following) in t
 
 \subsubsection{Comparison}
 
-\subsection{VDHL design paradigms}
+\subsection{VHDL design paradigms}
 
-\subsection{VDHL implementation}
+\subsection{VHDL implementation}
 
 \section{Experimental results}
 \label{sec:results}