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EV-SARP (EarthView SAR Processor)¹p¹F°T¸¹³B²z³nÅé

EV-SARP¥i¤ä´©ªº½Ã¬P¦³ERS-1¡B JERS-1¡B SEASAT¡B CCRS C/X SARs¡B ALMAZ»PRADARSATµ¥¡A´£¨Ñ¿Ë©M©Ê°ªªº¤H¾÷(Human Machine Interface)¾Þ§@¤¶­±¡A¤¬°Ê¦¡ªº¾Þ§@¿ï³æ¡A¨Ï¥ÎªÌ¥i»´©öªº³]©w§å¦¸(batch)³B²z¼Ò¦¡¡A¥ç¥i¦Û¦æ³]©w¤£¦P¹p¹F½Ã¬P¸ê®Æ©Ò»Ý³B²z¤§°Ñ¼Æ¡F³øªíÀÉ·|±N³B²z¨BÆJ¥H¤Î°O¿ý¨C¤@°õ¦æ¶¥¬q©Ò¥i¯à²£¥Í¤§¿ù»~°T®§¡FEV-SARP¥ç¥i²£»s8 bit¡B16 bit¾ã¼Æ¤Î32 bit¹ê¼Æµ¥¤£¦P¸ê®Æ«¬ºAªº¹p¹F¼v¹³¸ê®Æ¡C

EV-SARP¥Ø«e¨Ï¥ÎRange/Doppler¤èªk¶i¦æ»EµJ³B²z¥H²£¥Í¹p¹F¼v¹³¡A¨Ã¯à²£¥Í¨ã¦³¬Û¦ì(phase)¸ê°Tªº½Æ¼Æ¸ê®Æ¥H«K¥Î©ó¤z¯A¹p¹F»P°¾·¥¹p¹F»â°ì¤WªºÀ³¥Î¡CSecondary Range Compression(SRC)¥i¿ï¾Ü©Êªº¥Î©ó©çÄáµø¨¤«Ü¤jªº¸ê®Æ³B²z¤W¡F¥Ñ©ó¦³¬Û·íºë½Tªº­y¹D¸ê®Æ¶Ç¿é¾¹(Orbit Propagator)ªº³]­p¡A¥iºë½T±Àºâ³q¹L¬Y¤@­y¹Dªº³æ¤@ÂIªº¦ì¸m¡B»P³t²v¡C

¥H¤U¬°Á|¨Ò»¡©ú¨Ï¥ÎEV-SARP³B²zERS-1°T¸¹¸ê®Æªº«ØÄ³°Ñ¼Æ¡C

APP (EarthView Advanced Precision Processor)¹p¹F°T¸¹³B²z³nÅé(¶È´£¨Ñ¤u§@¯¸ª©)

¬°¤F²£¥Í§¹µ½ªº¹p¹F¼v¹³¸ê®Æ¥H¥Î©ó¯S©w¥Î³~ªº»â°ì¡A¨Ã±q¼v¹³¤¤Àò±o³Ì¤jªº¸ê°T»P»ù­È¡A°ò©ó¦¹¶µ­ì¦]¡A©ó¬OAtlantis Scientific Inc.µo®i§ó¨ã¼u©Ê¾Þ§@ªº²Ä¤G¥N¹p¹F°T¸¹³B²z¾¹¡C

EarthView APP¥i¤ä´©ªº½Ã¬P¸ê®Æ¦³ERS-1¡BJERS-1»PRADARSATµ¥¡A¥Ø«e¶È¤ä´©¤u§@¯¸§@·~¥­¥x¡C²©ö¾Þ§@ªº¹Ï§Î¨Ï¥ÎªÌ¤¶­±(Graphic User Interface,GUI)¡A¨Ï¥ÎªÌ¥i²¾°Ê·Æ¹«¡A¨Ì¾Ú¥Ø¿ý©Î¬O¹ï¸Ü®Ø«ü¥Ü¡A¿ï¾Ü©Î­×¥¿¾Þ§@°Ñ¼Æ¡C¨Ï¥ÎªÌ§ó¥i¥H³]©w¼Æ­Ó²ÕºA°õ¦æÀÉ¡A¤£»Ý³z¹L¨Ï¥ÎªÌ¤¶­±§Y¯à¦P®É¶i¦æ°T¸¹³B²z¡C

EarthView APP­«­nªº¯S¦â¦b©ó¥i¶i¦æ¼v¹³³B²z(image processing)¡B¼v¹³®i¥Ü(image display)¡B¼v¹³«~½è¤ÀªR(image quality analysis)»P¼v¹³¤§¤ÀªR³B²z(image manipulation)µ¥¥\¯à¡A¤¤¶¡²£«~¡B½Æ¼Æ¸ê®Æ©Î¬O³Ì«á¼v¹³¦¨«~¬Ò¥i®i¥Ü¡A¨Ã´£¨Ñ¼v¹³«~½è¤ÀªR³ø§i¡A¨Ã¥i±N¦¨ªGÂà´«¦¨®à¤W«¬¿é¥X®æ¦¡¡C

EarthView APP¨Ï¥ÎÅçÃҫᤧRange/Dopplerºtºâªk»P¥i¿ï¾Ü¤§Secondary Range Compression(SRC)¡A¦¹ºØºtºâªk¥iÁ×§K°¼¶Z»P¤è¦ì¤W¤§¬Û¦ì¸ê®Æ²£¥Í¤£³sÄò²{¶H¡C¬Û¦ì¸ê®Æªº«O¦s¾A¦X¥Î©ó¤z¯A¹p¹F»P°¾·¥¹p¹F»â°ì¡C

­È±o¤@´£ªº¬OEarthView APP´£¨Ñ¥t¥~¨â­Óªþ¥[¿ï¾Üªº¥\¯à¡A¨ä¤@¬OChirp Scaling SAR³B²zºtºâªk¡A¨ä§Q¥Î³Å¥ß¸­Âà´«(Fourier Transforms)¡B°f³Å¥ß¸­Âà´«(inverse Fourier Transforms)¤Î½Æ¼Æ¬Û­¼(Complex multiplies)µ¥ºtºâªk¡C¦]¨ä¤£»Ý¨Ï¥Î¤º®t¡A¬G¯à°÷³B²zÀò±oºë«×¸û°ª¤§¼v¹³¡C¦¹ºØºtºâªk¥ç¥i³B²zµø¨¤¸û¤j»P¦³ÅãµÛ³£¤R°Ç(Doppler)ÅܼƳq¹Lªº¹³´T(scene)¡C¨ä¤G«h¬OSuper Resolution Mode¡A¦b°¼¶Z»P¤è¦ìªº²Õ¦X¤W¤À§O¥Î1.3»P2.0ªº¤¸¯À¡A³z¹L«D½u©Ê(non-linear)ºtºâªk´£°ª¹p¹F¼v¹³ªºªÅ¶¡¸ÑªR¤O¡C¦Ü©ó¾ãÅéªí²{®Ä¯à¦nÃa¨ú¨M©ó¹³´T(scence)¤W¥Ø¼Ðª«»PÂø°Tªº¤ñ²v(target-to-noise ration)¡C¸ÑªR«×ªº¼W´­¹ï©ó¦üÂI(point-like)ªº¥Ø¼Ðª«°»´ú»P¤ÀÃþ¬Û·í¦³¥Î¡A¥²µMªº¹ï©ó¤z¯A¹p¹FªºÀ³¥Î¥ç¬O¬Û·í­«­n¡C

APP¤ä´©¦hºØ¤£¦P¹p¹F½Ã¬P·P´ú¾¹¡A¨Ã¥B¥i¥Î¬Û¦Pªººtºâªk³B²z¤£¦Pªº°T¸¹¸ê®Æ¡A³Ì«á¦¨¹³µ²ªG¤£¦Pªº³Ì¤j­ì¦]¬°°T¸¹¸ê®Æ¨Ó¦Û¤£¦Pªº·P´ú¾¹¡A¦Ó«D¦]¤£¦PªºSARP³B²z¾¹¡C

Radar Analysis

¥i³z¹Lslant range to ground range conversion¡Bantenna pattern removal¡B¥H¤Îcaculation of textural features¡A³B²z8 or 16-bit SAR(synthetic aperture radar)¸ê®Æ¡C
¥i¨Ì°ªµ{¸ê®Æ¶i¦æSAR¼v¹³¹LÂo(filtering)»P¼ÒÀÀ(simulation)¡C

Polarimetric Radar (PR)

¥iŪ¨ú³B²z©Î½Õ¾ãSAR Strokes ¥H¤Îscattering matrix data (¦p¡GJPL airbone SAR)¡C
¥i§Q¥Îarbitrary polarizations¦X¦¨¹p¹F¼v¹³

Radar Ortho(RO)

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¥i¥ÑRadarsat¡BERS»PJERS¼v¹³²£¥Í¥¿®g¼v¹³
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Radarsat DEM(RD)

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INSAR Interometric SAR

´£¨Ñinterferometric techniques¡A±qERS¡BJERS»PRadarsat¸ê®Æ¤¤²£¥Í°ªµ{¼Æ­È¼Ò«¬
§¹¾ã³B²z¹Lµ{¥]¬A¡Gdata ingestion¡Bfiltering and analysis¡Bimage registrationand baseline determination¡Binterferogram generation¡Bmultiple phase unwrapping methods on the interferogram ,and DEM generation

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