a procedure to edit deep-towed navigation data · 2011. 5. 13. · approved for public release;...
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![Page 1: A Procedure to Edit Deep-Towed Navigation Data · 2011. 5. 13. · Approved for public release; distribution is unlimited. Naval Research Laboratory Stennis Space Center, MS 39529-5004](https://reader035.vdocument.in/reader035/viewer/2022071403/60f7a02011102d5ecf193af2/html5/thumbnails/1.jpg)
Approved for public release; distribution is unlimited.
Naval Research LaboratoryStennis Space Center, MS 39529-5004
February 28, 2003
NRL/MR-MM/7430--03-8294
A Procedure to Edit Deep-TowedNavigation Data
Seafloor Sciences BranchMarine Geosciences Division
CHARLES MEGNIN
WARREN T. WOOD
DENNIS A. LINDWALL
JOSEPH F. GETTRUST
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February 28, 2003
A Procedure to Edit Deep-Towed Navigation Data
Naval Research LaboratoryMarine Geosciences DivisionStennis Space Center, MS 39529-5004
74-7814-03
Approved for public release; distribution is unlimited.
While data acquired from deep-towed seismic surveys offer the potential of greatly increased image resolution over the surface-towed approach,accurate positioning constitutes an important challenge which, if not performed accurately, could offset the benefits gained by the proximitybetween the source and the ocean bottom. We present here a new procedure that optimally determines relay and receiver positions at all times,using the Long Baseline acoustic navigation system. Navigation and seismic data were acquired during the October 2002 Cascadia Margin cruise.
Unclassified Unclassified UnclassifiedUL 37
Joseph Gettrust
(228) 688-5475
DTAGS; Deep Towed Acoustics/Geophysics System, Velocity images; Seismic reflection
Memorandum Report
0601153N
ONROffice of Naval Research800 North Quincy StreetArlington, VA 22217-5000
NRL/MR-MM/7430--03-8294
October 1, 2002-January 8, 2003
74-7814-00
Charles Megnin, Warren T. Wood, Dennis A. Lindwall, and Joseph F. Gettrust´
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9001000
Line # 5 relay
�XZw`¤FUWP�� % �t[��§Y�[k�jX_w/[\R]X_^`YuF[\R�[ a$^`U+R]bFP U]P1g_[k�`J � bFP P1uFXMRTP1um�]bcX_s ��4i1^`¤FUW�]P X_� �WbF^���YXZY �Fg_¤FPe[\YFu�RTbFPU][���U]P�g�[k�YF[��jXZw/[\RTXZ^`Yu�[vR�[ X_YhUWP1u+J � bFPei�^`¤FU]�WPe^�a4RTbFPm[�i�^`¤F�WR]X_iUWP1g�[k�7X_� YFPk[�UWgZ�7X_V�s�^��]�]X��Fg_P R]^ a$^`g_gZ^���[�� V�^`�WR ^\a4XZRT�|dcf�s%^`�WXZRTXZ^`YF� [�U]PQP�U]UW^`YFP1^�¤F�1J� � bFX_�|d�w`¤FUWPQX_�|V [\uFP ��XMRTb R]bFP{�� �]i�U]X_s6R � � ��� � ��� ��� ��� ��� �~�jI�scs�P�YFuFXMf � J��cJMLX�SJ
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0.20.40.60.81.01.21.41.61.82.02.22.42.62.8
dist
ance
(km
)
0.20.40.60.81.01.21.41.61.82.02.22.42.62.8
dist
ance
(km
)
0 75 150 225 300 375 450 525 600 675 750 825 900 975 1050fix #
100120140160180200220240260
azim
uth
(deg
rees
)
100120140160180200220240260
azim
uth
(deg
rees
)
0 75 150 225 300 375 450 525 600 675 750 825 900 975 1050fix #
00.20.40.60.811.21.41.61.822.22.42.62.8
0216
377783
Ship/fish distance and azimuth (line # 5)
�XZw`¤FUWPl� % NQX_� R�[�Yci1P [\YFu¨[���X_V ¤cR]b�sFgZ^�RT� ��PSR � P�P1Y �]bFXZs �0P�uFXZR]P1u¨u�[\RT[Z� [\YFu¨U]P�g�[k��$UT[k��u�[\R�[f�li1^`UWU]P��]s%^`YFuFXZYFw�RT^ �X_w`¤FUWP�cJ��"^`s %� �XMf:s%^`�]XMRTXZ^`YF�KXZY � � � *��l�]s�[\i1P�J�XZuFuFgZP�% uFXZ�WRT[�YFi1P�a$^`UmPk[�i�b§d6f�J � bFPUWP1uEgZX_YFPxi�^`U]UWP1�]s%^`YFuc�KRT^ RTbFP7uFX_� R�[�YFi�P[��i1[�g_i�¤Fg�[\R]P1u�a$UW^`V�U]P�g�[k��ucP1scR]b [�YFu¨g_P�YFw�R]b � ^�a � ik[��cg_Pmg_^`w`��J � ^�RWRT^`V %�I ��X_V ¤cR]b�a$^`UP1[�i�b dcf�J�� bFP���^\R]RT^�V scg_^�R]�[�gZg_^�� RT^§UT[�sFXZuFgZ� XZuFP1Y/RTXMa � ^�� � i1^`¤cU]�]P�s�^`�WXZR]X_^`YF��J� � bFX_� d�w�¤FU]PeX_��V7[�uFPQ��XMRTb�RTbFPl{�� �Wi1UWX_scR � � ��� &�� ��� "('(� ��� �}�FI�scs�P�YFuFXMf � Jp�cJpof� J
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-0.00874836
-0.00583224
-0.00291612
-0.00000000
0.00291612
0.00583224
0.00874836
∆
-0.00874836
-0.00583224
-0.00291612
-0.00000000
0.00291612
0.00583224
0.00874836
∆
0 106 212 318 424 530 636 742 848 954 1060Fix #
0 106 212 318 424 530 636 742 848 954 1060Fix #
Jumps
�XZw`¤FUWP ¥*% � b�[�YFw`P XZY�RTbcP U]P1g_[k� ��g�[vRTXZR]¤FuFP � �FgZ¤FP>��[\YFu¨g_^`Ycw`XZR]¤FuFP��$U]P�uu�9��a$^�U�RTbFPi�^`¤FU]�WP X_Y �X_w`¤cU]P �6J�� � bFX_��dFw`¤FU]P X_��V7[�uFP|��XZR]bKRTbFP { �� �Wi1U]XZscR�� � ��� ��� � ����� ��� �}�I sFs�P�YFuFX f � Jp�6Jp�Z� J
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232˚
232˚
234˚
234˚
236˚
236˚
48˚ 48˚
49˚ 49˚
50˚ 50˚
51˚ 51˚
233˚ 06'
233˚ 06'
233˚ 09'
233˚ 09'
233˚ 12'
233˚ 12'
48˚ 39' 48˚ 39'
0 1 2
km
188
238
288
338
388
438
488
538588
638688
738788
838888
9389881038
ship trace
relay trace
transponders
Line # 5
�XZw`¤FUWP ¦ % � ^`U]UWP1i�R]P1u �WbFX_s �$U]P�uEg_XZYFP>�e[�YFuEUWP1g_[�� �$w`U]P�P1YEgZX_YFPJ�s%^`�WXZRTXZ^`YF��JA� � bFX_�d�w�¤FU]PeX_� V7[�uFPQ��XMRTb�RTbcPK{����]i1UWX_scR � � ��� � ���*��� ��� ��� �}��I�sFs%P1YcuFXMf � J��cJMLX�SJ
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0.50.60.70.80.91.01.11.21.31.41.5
dist
ance
(km
)
0.50.60.70.80.91.01.11.21.31.41.5
dist
ance
(km
)
225 300 375 450 525 600 675 750 825 900 975 1050fix #
100120140160180200220240260
azim
uth
(deg
rees
)
100120140160180200220240260
azim
uth
(deg
rees
)
225 300 375 450 525 600 675 750 825 900 975 1050fix #
0
0.2
0.4
0.6
0.8
1
1.2
1.4
188
579
Ship/fish distance and azimuth (line # 5)
�XZw`¤FUWPn*% NQXZ�WR�[\YFi1P���[��1XZV ¤cR]bsFg_^\R a$^`U R]bFPP1ucXZRTP�uhu�[\R�[6J � bFPeU]P�u gZX_YFP X_� ucP1U]XM�`P�ua$UW^`V RTbFPu�[vR�[KgZ^`w [�YFuR]bFP �FgZ¤FPQgZX_YFP i1^`UWU]P1�Ws�^�YFuF� RT^ R]bFPQs%^`�]XMRTXZ^`YF� XZY� �XZw`¤FU]P�¦cJ� � bFX_� d�w�¤FU]PeX_��V7[�uFPQ��XMRTb�RTbFPl{�� �Wi1UWX_scR � � ��� &�� ��� "('(� ��� �}�FI�scs�P�YFuFXMf � Jp�cJpof� JJ
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