0+ )1$%''%-+23/41,%-+531647-&.%-8+wp.unil.ch/jbge/files/2018/03/JBGE2018_larose_compresse.pdf ·...

48
!"#$%&''()*% ,%- #&-."%- )(/"#%'- 0 )1"$%''%- 23/41,%- 531647-&."%-8 Eric LAROSE, Laurent BAILLET, Denis JONGMANS & co PhD stud : Mathieu LE BRETON, Guénolé MAINSANT, Antoine GUILLEMOT & co ... 9."&6% :31647-&."% ,%- ;&-."%- %/ ,% '<9)$&#1))%2%)/ =!>%##%? @A;! B C)&$D :#%)1E'% F'6%- Partenariats :

Transcript of 0+ )1$%''%-+23/41,%-+531647-&.%-8+wp.unil.ch/jbge/files/2018/03/JBGE2018_larose_compresse.pdf ·...

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!"#$%&''()*%+,%-+#&-."%-+)(/"#%'-+0+)1"$%''%-+23/41,%-+531647-&."%-8+

Eric LAROSE, Laurent BAILLET, Denis JONGMANS & co

PhD stud : Mathieu LE BRETON, Guénolé MAINSANT, Antoine GUILLEMOT & co ...++

9."&6%+:31647-&."%+,%-+;&-."%-+%/+,%+'<9)$&#1))%2%)/+=!>%##%?++@A;!+B+C)&$D+:#%)1E'%+F'6%-+

Partenariats : +

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GD! F)('7-%+$&E#(/1&#%+

HD! I(#&(/&1)+,%+$&/%--%+J+E#"&/+,%+K1),+-&-2&."%+

LD! M%-"#%+,%+,3K1#2(/&1)+0+>%*4)1'15&%+;N=O+

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M%*4()&*('+$&E#(/&1)+P+9'(-/&*&/7+Q+2(--+++

f =rigiditymass

!"#$%&'(&)#*&+,-.&/0#

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!"#$"%%&$"#'(%$()*+*#,'-.'/0$+1$"#('

!"#$%&'(&)#*&+,-.&/0#

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R%$7+%/+('?+:S=+THUGUV + +W1//%'&)+%/+('?+:S=+THUGLV+

!"#$%&'(&)#*&+,-.&/0#

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!"#$%&'(&)#*&+,-.&/0#

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!"#$%&'(&)#*&+,-.&/0#

K(&'"#%+

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R%$7+%/+('?+:S=+THUGUV + +W1//%'&)+%/+('?+:S=+THUGLV+

!"#$%&'(&)#*&+,-.&/0#

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;%-1)()*%+N#%."%)*7+

W1//%'&)+%/+('?+:S=+THUGLV+ + + +R(#1-%+%/+('+THUGXV+

!"#$%&'(&)#*&+,-.&/0#

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N++++ +!++++ +#%(#+K#(*/"#%++

+ + + +E"'Y+,(2(5%JK#(*/"#(/&1)+T#&5&,&/7++++V++

+ + + +/4%#2('+%KK%*/++++++++8++++++++8++

N+++ +K#(*/"#%+

#&5&,&/7++++V+

++++++++8++++++++8+++++++++8++++++++8+

!"#$%&'(&)#*&+,-.&/0#

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N++++ +!++++ +#%(#+K#(*/"#%++

+ + + +E"'Y+,(2(5%JK#(*/"#(/&1)+T#&5&,&/7++++V++

+ + + +/4%#2('+%KK%*/++++++++8++++++++8++

>Z++P[++#&5&,&/7++++++\D++++W"/DDD+++

N+++ +K#(*/"#%+

#&5&,&/7++++V+

++++++++8++++++++8+++++++++8++++++++8+

>Z++P[++ ++++++

!"#$%&'(&)#*&+,-.&/0#

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N++++ +!++++ +#%(#+K#(*/"#%++

+ + + +E"'Y+,(2(5%JK#(*/"#(/&1)+T#&5&,&/7++++V++

+ + + +/4%#2('+%KK%*/++++++++8++++++++8++

>Z++P[++#&5&,&/7++++++\D++++W"/DDD+++

N+++ +K#(*/"#%+

#&5&,&/7++++V+

++++++++8++++++++8+++++++++8++++++++8+

>Z++P[++ ++++++

>Z++P[++/4%#2('+,&'(/&1)+++P[+'1*('+-/#%--+++P[+#&5&,&/7+++++++>Z++P[++/4%#2('+,&'(/&1)+++P[+'1*('+-/#%--+++P[+Z++P[++/4%#2('+,&'(/&1)+++P[+'1*('+-/#%--+++P[+Z++P[++/4%#2('+,&'(/&1)+++P[+'1*('+-/#%--+++P[+#&5&,&/7+++++++

2345 ' ''637'

!"#$%&'(&)#*&+,-.&/0#

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R(+W1"#)%+:1#5%-++

!"#$%&'(&)#*&+,-.&/0#

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C)-/(E'%+#1*Y+*126(#/2%)/+

!"#$%&'(&)#*&+,-.&/0#

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@1'"2)+#%]&)K1#*%2%)/+

KU+KU+@1)/&)"1"-++-%&-2&*+-/(/&1)+ KK

+!%&-2&*+!%)-1#-+

;%&)K1#*%2%)/+

!"#$%&'(&)#*&+,-.&/0#

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KU+KU+ KG[KU+G[KU+@1)/&)"1"-++-%&-2&*+-/(/&1)+ KK KGKG

+!%&-2&*+!%)-1#-+

;%&)K1#*%2%)/+

GD+!%&-2&*+$&E#(/&1)+

@1'"2)+#%]&)K1#*%2%)/+

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W%K1#%+>Z+*1##%*/&1)+

FK/%#+>Z+*1##%*/&1)+

!"#$%&'(&)#*&+,-.&/0#

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W%K1#%+>Z+*1##%*/&1)+

FK/%#+>Z+*1##%*/&1)+

;%&)

K1#*

%2%)

/+

;%&)

K1#*

%2%)

/+

^1#Y+."('&/7+*1)/#1'+Q+'1)5+/%#2+21)&/1#&)5+

W1//%'&)+%/+('?+9)5D+:%1'157+THUG_V+

!"#$%&'(&)#*&+,-.&/0#

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GD! F)('7-%+$&E#(/1&#%+

HD! I(#&(/&1)+,%+$&/%--%+J+E#"&/+,%+K1),+-&-2&."%+

LD! M%-"#%+,%+,3K1#2(/&1)+0+>%*4)1'15&%+;N=O+

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>&2%+1K+K'&54/++!%&-2&*+$%'1*&/7+++•! ,IJI+`U+

–![+=)*#%(-%+1K++,%)-&/7+Ta(/%#+*1)/%)/V+8+–![+,%*#%(-%+1K+-/#%--+–![+,%*#%(-%+1K+#&5&,&/7+TK#(*/"#(/&1)J,(2(5%V+

v =rigiditédensité

!++++ + +++;+ >&2%+1K+K'&54/+

!%&-2&*

1"#2343#5,/(#-(+&-0.#'%&'(&)#0/&'% # # # # # # +9D+R(#1-%+

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>&2%+1K+K'&54/++!%&-2&*+$%'1*&/7+++•! ,IJI+`U+

–![+=)*#%(-%+1K++,%)-&/7+Ta(/%#+*1)/%)/V+8+–![+=)*#%(-%+1K+/%26%#(/"#%+–![+,%*#%(-%+1K+-/#%--+–![+,%*#%(-%+1K+#&5&,&/7+TK#(*/"#(/&1)J,(2(5%V+

v =rigiditédensité

!++++ + +++;+

A%%,+#%6%(/(E'%+-1"#*%-+Q+6#%*&-%J-%)-&/&$%+-&5)('-DD+

>&2%+1K+K'&54/+

!%&-2&*

1"#2343#5,/(#-(+&-0.#'%&'(&)#0/&'% # # # # # # +9D+R(#1-%+

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89':%;<%&=('<$%>'?@ABCDEFF@'$"'GH,(9'8%<9'4%II%&DJ''

1"#2343#5,/(#-(+&-0.#'%&'(&)#0/&'% # # # # # # +9D+R(#1-%+

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Ambient noise

Workflow

Amplitude clipping / 1-bit

Frequency Whitening

Daily X-correlation

Averaging

1"#2343#5,/(#-(+&-0.#'%&'(&)#0/&'% # # # # # # +9D+R(#1-%+

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GUU+2+

LU+2+

R%-+O&(E'%#%/-+T!"&--%V+

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,I+J+

I++Tb

V+

A1+,(/(+

M(&)-()/+%/+('?+S:;+THUGHV+

1"#2343#5,/(#-(+&-0.#'%&'(&)#0/&'% # # # # # # +9D+R(#1-%+

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,I+J+

I++Tb

V+

A1+,(/(+

N'"*/"(/&1)-+QJ]+Hb+

M(&)-()/+%/+('?+S:;+THUGHV+

1"#2343#5,/(#-(+&-0.#'%&'(&)#0/&'% # # # # # # +9D+R(#1-%+

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,I+J+

I++Tb

V+

A1+,(/(+

O#7&)5+,"#&)5+-"22%#+

M(&)-()/+%/+('?+S:;+THUGHV+

1"#2343#5,/(#-(+&-0.#'%&'(&)#0/&'% # # # # # # +9D+R(#1-%+

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,I+J+

I++Tb

V+

A1+,(/(+

^&)/%#+0+M1&-/"#%+J+K#%%c&)5+J+-)1a\+

M(&)-()/+%/+('?+S:;+THUGHV+

1"#2343#5,/(#-(+&-0.#'%&'(&)#0/&'% # # # # # # +9D+R(#1-%+

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,I+J+

I++Tb

V+

A1+,(/(+

R(#5%+,%*#%(-%+P[+R&."%K(*/&1)8+

M(&)-()/+%/+('?+S:;+THUGHV+

1"#2343#5,/(#-(+&-0.#'%&'(&)#0/&'% # # # # # # +9D+R(#1-%+

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M(&)-()/+%/+('?+S:;+THUGHV+

,I+J+

I++Tb

V+

X+,(7-+6#%*"#-1#7+-&5)('+

!%%+('-1+Ad9R=9+WdA>9Me<!+61-/%#+f+

1"#2343#5,/(#-(+&-0.#'%&'(&)#0/&'% # # # # # # +9D+R(#1-%+

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M(&)-()/+%/+('?+S:;+THUGHV+

1"#2343#5,/(#-(+&-0.#'%&'(&)#0/&'% # # # # # # +9D+R(#1-%+

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H_UU+2+

8*KL,'M+;K$%&'N'M0#+;'O'P':;++$('?26J'

A+LHUU+2+

GXUU2+,<('/&/",%+

QK%'

8*KLR(;"1'

8*KLR(;"1'

/%1&*KL'

1"#2343#5,/(#-(+&-0.#'%&'(&)#0/&'% # # # # # # +9D+R(#1-%+

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e%#2(K#1-/+21)&/1#&)5+

0 100 200 300 400

-2

0

2

dV/V

(%)

-50 0 50 100 150 200 250 300 350 4001-2 @4Hz-8Hz

0.6

0.7

0.8

0.9

1S()D+HUGg+

0 100 200 300S")+HUGg+

W#"/('+-)1a+2%'/++

+ ++-(/"#(/&1)Q,%-/(E&'&-(/&1)+

S()D+HUG_+

-(/"#(/&1)Q,%-/(E&'&-(/&1)

*14%

#%)*

%+

1"#6/2-#7-*%#80.%,5%,/(%.,9:# # # # # # # +9D+R(#1-%+

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GD! F)('7-%+$&E#(/1&#%+

HD! I(#&(/&1)+,%+$&/%--%+J+E#"&/+,%+K1),+-&-2&."%+

LD! M%-"#%+,%+,3K1#2(/&1)+0+>%*4)1'15&%+;N=O+

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;N=O+#%(,%#+

e@Q/%'%*12+

;N=O+F)/%))(+

;N=O+/(5+

d!air+d!d!dd

dx+

;"#</0&./,&0=#>?8@ # # # # # # +9D+R(#1-%+

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h1a+8+e4(-%]O&-/()*%+%."&$('%)*%+

4air

f dv!

" = #

I(#&(/&1)+&)+/&2%+i+();++'&;1$;+'1$(S+;K%)%"I('M1,"'1+Hj+i+;KK0&;I%T'/0I';)/$#0*0('

With !air 64(-%+-4&K/+&)+/4%+(&#+T#(,Vk+d tag-base ,&-/()*%k+v #(,&1+a($%+$%'1*&/7+&)+/4%+(&#+Tl+*Vk+f *(##&%#+K#%."%)*7+TmgX]mgm+MhcVD+

=)+16/&2"2+*1),&/&1)-+0+

measured instruments air! ! != +

;"#</0&./,&0=#>?8@ # # # # # # +9D+R(#1-%+

measured instruments air! ! !measured instruments air! ! !measured instruments air= +! ! != +! ! !measured instruments air! ! !measured instruments air= +measured instruments air! ! !measured instruments air

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>%26%#(/"#%+%KK%*/-+1)+/4%+

64(-%+

GD+>(5+

HD+@1(n&('+*(E'%+

Lm+

MD+R%+W#%/1)+%.#-A"B#od"/,11#+ChN+;N=O+0+e4(-%+!/(E&'&c(/&1)+K1#+;%(']^1#',+F66'&*(/&1)p?+=999+S1"#)('+1K+;(,&1]N#%."%)*7+=,%)/&K&*(/&1)?+&)+

6#%--+

;"#</0&./,&0=#>?8@ # # # # # # +9D+R(#1-%+

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M1&-/"#%+%KK%*/-+

;"#</0&./,&0=#>?8@ # # # # # # +9D+R(#1-%+

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W(-%+-/(/&1)+

>(5-+

W(-%+-/(/&1)+

Gq+/(5-+

9n/%)-12%/%#+

e1)/]W1"#."&)+!a&/c%#'(),+ rU+

;"#</0&./,&0=#>?8@ # # # # # # +9D+R(#1-%+

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I('&,(/&1)+1K+,&-6'(*%2%)/-+

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e4(-%+1K+(''+/(5-+('1)5+/&2%+

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M%#*&+f+

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^4&/%)&)5+P+K#%."%)*7+)1#2('&c(/&1)+(26'&/",%+

t+

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100' 101' 102' 103' 104' 105'-1.5'

-1'

-0.5'

0'

0.5'

1'

1.5'

time (µs) '

8 bit digitizing'

1 bit digitizing'

Larose et al, JAP 2004

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100' 101' 102' 103' 104' 105'-1.5'

-1'

-0.5'

0'

0.5'

1'

1.5'

time (µs) '

8 bit digitizing'

clipping'

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Larose et al, JAP 2004

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rm+

100' 101' 102' 103' 104' 105'-1.5'

-1'

-0.5'

0'

0.5'

1'

1.5'

time (µs) '

8 bit digitizing'

clipping'

Larose et al, JAP 2004

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