        !#"$!%'&)('*,+.-0/21436587'9;:;<=1>7?('@81>&A9B*DCE-GFA5H&)58-G7'587'IKJL9M&AN,-O*
P?+Q$SacRT-Gb#(,FUdf&)5HRWehVSg 5H<U9MFUiD&Xjl%,9MknY?('mh9B7'goRTg 9[Zpc- q*,9;r.V\st58]?5Hg FA5H-07^ucJLvx('wz@8&)5Hy{_,@Hg 9M`nQ|X} ~'cTc) K>c c..c} Xc[T=¡  gU¢¤£ ,c} ~6K>¥nA>¦M¡¨ §[©cª} «[TXcT>c ¬­ ggU®
¯±°2¶n²¨·[³h¸^´ ¹WºDµ »D¼¾½S¿4À4Á4ÂÄÃ;ÅÆ4¸hÇÉÈËÊ ÌÎÍzÏ¨ÐÒÑÔÓXÕ ù· Ñä· Ó ùØ Ð æ ¨ûúAy üï ¨þý F½ e K} ± ù Å ­Ð · ·B ÿ  ½W âä ã úÍîSDðÏñ e } ï DÌÖ ë½;ì^×QíQØ^î;ÌWïUÙ4ð4ÚÜñ Û ½Îò)ÞóäÝcÌ ß ê ½SÓÎànôKá Ûßcõ4âäöãW÷åçø^æéù è.Ðúê½f÷Ó }ûz½ ßê eXÈ AÄF] ®ðÌB:ÿ Î W ïW ÿ ¼ ¼ BoÈ[6 6R\6 8RÈ[61616 6 ï W ½¼ Æ[È Ç 6 \ í 8RÂ816é½F½ wÐÑ ÊKí Ë _BáücÓýDþnÿÚ !ïä½\Ó á  ß í å" zÓ  } âDã   æ  ÒÄ@e }#¾°¯ $&%(') îø *QC· B7DF+ E GH¤- ,/IK. JK1 0L3 M2Ò5 N4¾OK P ½ Rï 7È Q 61819 >Q : ,< W Yï ;=Ñ ZSXôÑÛ ÷>@?A
TVSU
X
È[½ 61jK6 4Ekl\]m2n5û44EÛ ½_îéï^ag`cbÔ>ÌFdAe@oFpXe q;f;F½½n/gû4Û >hrse t} ^a`iu bve,Tw É:í v·ê .RÓ 0o}g12÷n\ûç>h4¾½ F x e ï æ y ,>{É:z}v| >Q:0 ~È7 .¤!ï -0Q |1í z ` ~U  >îÈ `  > _Ô}½  ·  ù Ð  ÅÈ¾ÆÌ   } 83 ï ä½ & K(; =Uvæy¡ £4÷ Cî ¤v¥ í «­¦X¬DF¤E¥ x y §ï ]¨ ü4¬ ý ef¤©}¢ ¥£Ä /Ó½\¢ª
æ· ·vy÷qK½¯ozþc­½ÿ p Ú` q U ¸>K¹ BÈ W º3x( ¦K·x ®  y Kí /»¨° ® (÷ XÍ Ó ä²ï ±A} Ï é³® ½´¬ µCÓ ¶ } 8^½FÖ@ ×9!ÓÏ8   ÌâäãW åç} Ûæ ÔÜ wã  Ì­8ß í á@Ùâ Ú È 8 q ¼ §ï ä½äæ æ 9  ù /§ï äè/® 6 ¬ 6 Ó } í ÙÚ¨½ ï æ 8¨¼½³F´vµ¶ · X· q þnÿ Ú ¾ ÷ ¿ÁÀÃÂ BÈ W ùÞv¹î} Ì A ½\êá ßzé èKÊäË Ì ê Bá eÄF® È ¨Å¼ 7È 616 AïÏ ¨a/½ ¼ ÆÈ[6 Ç í  8 È6 Éä»D½F@¼ Ð­Â ÑF½ wí  Xí zÐ ÑÌ D® ¬­Ó ÓÒá } ß ) èî î ùzDÓ }Ó} éf;) ½;½nÙ½ Ú Sî )Í
\ )
¬ XùLÐ nÙ4Ú í ê ­Ó t LÐ ÑäÓ }  Ì  ¡/ÒÄ@e ß } AÍÌXÎ W





200

y [cm]

150
10050

l1l2M Sequence3050

100x [cm]

BPF

150

200

3SoundCard

2

Reference Sound



Sound
Card

Mixer

3

Correlation
lM Sequence

2002BPF

0502100
Length [cm]200150240ÈÚ }ï XäÖ½Õ× î Ù4Ö ÚD×È1ÌvÓ Ý(ÈaÞ/8é eÌßà c} ¹ÔXÔ »çØã ¼½vÙ® Ú ¬ îÓ Û} ÜÙ4Úw
áî{ß áÌvâ ê(6 }-Òã ®@) ëCïåì ä¡ æ ÖÈ× } Sç è)í ïåÐ äÑ è e 6 } 8 )èK î í ùÔêhÓ é } ïÅÊË
Mesured Length l [cm]240

Reference Sound

2

Sound
Card

150

Correlation

100

50

Expected Length

200
ERROR150

ïï

Mixer

y [cm]

SoundCard{ ïï
0.0
0.5
1.0
2.000.5 cm
1.0 cm
2.0 cm
4.0 cm¾° Q SVU Q  Ò Ä@e\ÓÏ8÷QûD Ì âä4ãWÓ åçæ Ö× Ò ¬[ï ½;á ßQâz(ã\í åäê/eæÓï}  8 è  K í í ê e Ä} ®­f Ûí î ½F)óXKKÌ á ÙKß Ú9Xí åÄÔíæÓ õ ½
 í ê Ó }
0



50

100
x [cm]

150

200





100!

50

ð8!Ó Èa Ö×ñ¾°!#@$&%(')8ò  Ä½X9WÌv 9òç½= ½ª©ôª8WØQ½ÕõÄÌÃ8  ÿö @÷C} ø ®@Ô ã óe4;Å
0

50

100
150
Real Length [cm]

200

240

#"$ &%'+*-,/. 1024365

()+7981:;=<?>A@

BDCFEHGJI#KML-NPOJQJR1S4NUT-VXW4Y1N[Z]\H^6_9`badcdedf9gdh1i
g1j+kXlnm6_/`Xoqpr1s&t-udvgqwdQHxyN{zJ|}C]~J
+JJ e-J-J  N bDC]C]NDF]-
BDFEXD4¡¢¤£¥§¦¨NHZF©[ª]«D¥]P¬­®°¯J±F®P¦³²´b±F£µ±¶¯£D·°±¯¤¥®¥]¸±F®n¹º¶¥»P¼D¶4½±®P¾]À¿P®P¦£ÁÃÂ¨Ä¨À¶Å´¨Æ1£ÀÇbÆ1È]È]ÉÅÊË]Ì]ÂÍ²¥]¬­ÉÇP»P¼À£ÏÎµ¶D®¶q©[Ç¨±F£¼¬Ð®°¼µÂ§ÑÎ²Â{Ò1±£¶Å´¨ÂDËFÈ]ÈÓ-Æ