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(ÁÖ)½ºÇÉÅÚ·¹ÄÞÀº ȸ»ç°¡ º¸À¯Çϰí ÀÖ´Â µðÁöÅÐ ½Åȣó¸® ±â¼úÀ» Ȱ¿ëÇÏ¿© LADAR ½Ã½ºÅÛÀ» °³¹ßÇϰí ÀÖ½À´Ï´Ù.
ETRI¿Í ÇÔ²² Linear/Subgeiger-Mode¿ë LADAR ½Ã½ºÅÛ °³¹ßÀ» ¼º°øÇÏ¿´À¸¸ç, 2012³â¿¡´Â ¹Î±º°â¿ë±â¼ú°úÁ¦¸¦ ¼öÁÖÇÏ¿© LADAR ½Ã½ºÅÛ °³¹ß Âü¿©¸¦ ÅëÇØ Â÷±â ÁÖ·Â ¾ÆÀÌÅÛ È®º¸¸¦ À§ÇØ °æÁÖÇϰí ÀÖ½À´Ï´Ù.

 
 
 

LADAR(LAser Detection And Ranging)´Â ÆÄÀåÀÌ 600~1,000nmÀÎ ·¹ÀÌÁ®¸¦ ÀÌ¿ëÇØ ¿ø°Å¸® ¹°Ã¼¸¦ ½Äº°Çϱâ À§ÇÑ ±â¼úÀÔ´Ï´Ù.
ÀϹÝÀûÀ¸·Î ±º»ç¿ë ¹«ÀÎÂ÷·® ¹× ·Îº¿¿¡ žÁ¦µÇ¾î Ȱ¿ëµÇ°í ÀÖÀ¸³ª ÃÖ±Ù ÀϺΠÂ÷·®¿¡ Àû¿ëµÇ¾î ÁÖÇàÀ̳ª ÁÖÂ÷½Ã ¿îÀüÀÚÀÇ ÆíÀǸ¦ µµ¸ðÇÏ´Â ¿ªÇÒÀ» Çϰí ÀÖ½À´Ï´Ù. ¹Ì·¡ÀÇ ÀÚµ¿Â÷´Â ¹«ÀÎÁÖÇà ½Ã½ºÅÛÀÌ ÇÙ½É ¿ä¼Ò ±â¼úÀ̸ç, À̸¦ À§ÇØ LaDAR ½Ã½ºÅÛ ±â¼úÀº ¹Ì·¡ÀÇ ÀÚµ¿Â÷ »ê¾÷¿¡ ¸Å¿ì Áß¿äÇÑ ÁÖ¿ä ±â´ÉÀ¸·Î ºÎ°¢µÉ °ÍÀÔ´Ï´Ù.

(ÁÖ)½ºÇÉÅÚ·¹ÄÞÀº ±¤ ¹× ¼¾¼­ ±â¼úÀ» Á¦¿ÜÇÑ °¢ ÀåÄ¡ÀÇ Á¦¾î ±â´É ¹× ½Åȣó¸® ±â¼úÀ» È®º¸Çϰí ÀÖ½À´Ï´Ù.

 
 
 
 
 
·¹ÀÌÀú ¼Û½ÅºÎ
  • °íÃâ·ÂÀÇ ·¹ÀÌÁ® ºöÀ» ¼ÛÃâÇÏ´Â ÀåÄ¡·Î ºö ÆÄ¿ö ¹× duty µîÀ» Á¦¾î
  • ¹°Ã¼ ¹æÇâ¿¡ ÆòÇàÀÌ µÇµµ·Ï ÇÏ´Â ½ÃÁØ(collimation)À» À§ÇØ ·»Á Á¶Á¤
½ºÄ³³Ê ±¸µ¿ºÎ
  • 1Â÷¿øÀÇ ·¹ÀÌÁ® ºöÀ» mirrorÀ» ÅëÇØ 2Â÷¿øÀ¸·Î ½ºÄ³´×Çϱâ À§ÇÑ ¸ðµâ
  • mirrorÀÇ ±¸µ¿Àº Á¤¹ÐÇÑ °¥¹Ù³ë(Galvano) ¹æ½ÄÀÇ ¸ðÅÍ¿¡ ÀÇÇØ Á¦¾îµÇ¸ç ½ºÄµ °Å¸®¿Í ¿µ¿ª¿¡ µû¶ó ÃøÁ¤ Á¤¹Ðµµ°¡ ´Þ¶óÁü
·¹ÀÌÁ® ¼ö½ÅºÎ
  • ¼ö½ÅµÇ´Â ±¤ÀÚ¸¦ APD(Avalanche PhotoDiode) ¹× TIA(Trans-Impedance Amplifier) ¸®½Ã¹ö¸¦ ÅëÇØ ¼¾½ÌÇϸç, Ãâ·Â Àü¾ÐÀ» ¼ö mV±îÁö ÃøÁ¤Çϱâ À§ÇØ Á¤¹ÐÇÑ Àü¿ø ¼Ò½º°¡ ÇÊ¿äÇÔ
½Åȣ󸮱â
  • ADC(Analog/Digital Converter) ¹æ½Ä¿¡ ÀÇÇÑ ¼¾½ÌÀº °í¼ÓÀÇ ADC·Î ¼ö½Å·¹º§À» µðÁöÅÐÈ­ÇÏ°í º°µµÀÇ peak °ËÃâ±â¸¦ ÅëÇØ ´Ù¼öÀÇ peak¸¦ °ËÃâÇÒ ¼ö ÀÖÀ½
  • TDC(Time-to-Digital Converter) ¹æ½ÄÀÇ °æ¿ì °í¼ÓÀÇ ADC´Â ÇÊ¿äÇÏÁö ¾ÊÁö¸¸ ¼ö½Å½ÅÈ£ÀÇ Æ¯¼ºÀ» ÆÄ¾ÇÇϴµ¥ Á¦¾àÀÌ ÀÖÀ¸¸ç, °ËÃâµÈ Peaks¸¦ ½ºÄ³´× Á¤º¸·Î Æ÷ÀåÇÑ ÈÄ ¿µ»ó 󸮱â·Î Àü¼Û
3Â÷¿ø ¿µ»ó󸮱â
  • ½Åȣ󸮱⿡¼­ 1Â÷ °¡°øµÈ 3Â÷¿ø Á¤º¸¸¦ ¹ÙÅÁÀ¸·Î ½Ã°¢È­(visualization) ÀÛ¾÷À» ¼öÇà
  • º¸´Ù Á¤¹ÐÇÑ 3Â÷¿ø ¿µ»óÀ» ¾ò±â À§ÇØ ³ëÀÌÁ orange peel effect µîÀ» ºÎµå·´°Ô(smoothing)ÇÏ´Â º°µµÀÇ ÀÛ¾÷À» ¼öÇà
 
 
 

°³¹ßµÈ LADAR ½Ã½ºÅÛ È¤Àº ±¸¼º ¸ðµâ¿¡ ´ëÇÑ Æ¯Â¡ ¹× ÁÖ¿ä ±Ô°ÝÀº ´ÙÀ½°ú °°½À´Ï´Ù.

Module Item Spec. Comments
Scanner Operator Controllable dimension 2 - dimension X, Y
Range ¡¾ 5 V  
Resolution 480 KHz  
Rotation Fully rotation 0<angle<360o
Noise 4 mV rms Front Placement
ADC Dimension 85 x 61 x 20 Without cooler
Resolution 10 bits  
Sampling Rate 1.5 Gsps  
Input ¡¾ 500 mVpp  
Output 1:2 or 1:4 Demultiplexed  
ADC Adapter FPGA Virtex-5 65 nm
Processing Speed 187 MHz  
Interface USB Possible to MATLAB control
APD Power APD Bias Min 0 V ~ Max 90 V  
APD Bias resolution 0.34 V 8 bits
TIA Bias +3.3 V  
TIA Bias Noise < 1 mVrms  
PLL Frequency 1,500 MHz  
Stability 10 ppm  
Output Level < 10 dBm  
UI Controller LCD Control VGA  
LED Control 32 EA 7-Segments 8 x 4
Key Pad 4 x 4 Matrix  
Push button 4 EA  
RS-232 2 EA  
Ethernet 10/100 Base  
DSP Speed 1.2 GHz  
Memory DDR 533MHz
TCP/IP Giga-Bit Ethernet Protocol Stack