ONE TIME CONNECTS THREE 
LATERAL TERRAIN PROFILES 
SATELLITE POSITION 
FLIGHT PASS, TIME 
  
SEVERAL INDEPENDENT 
CORRELATION CHAINS 
WITH LONG STEP WIDTH 
  
  
  
  
  
  
  
f 
ONE TERRAIN POINT CONNECTS 
THREE SATELLITE POSITIONS 
  
  
  
TERRAIN PROFILE 
SHORT RANGE INTERPOLATION OF CORRELATION CHAINS BY 
MATHEMATICAL MODELS OF SATELLITE DYNAMICS 
fig.1: MEOSS, a threefold Steroscopic linescan camera, 
optical navigation by image correlation. 
  
IMAGE | BROWS UCT 
DATA E PROD 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
  
  
    
  
  
  
  
GCP SELECTION OF 
"| IMAGE CORRELATION 
LIBRARY | ^| REFERENCE POINTS AG 
LINE AND GEOMETRIC 
PIXEL NR. TRANSFORMATIONS 
S Ie MAP PROJECTION 
TRACK.DATA | ORBIT CAMERA 
TRACK DATA | " 
OR ACCT | MODEL MODEL | 
MAP COORDINATE CORRESPONDING 
EARTH PREDICTION IMODEL PARAMETERS 
TEL.DATA ATTITUDE a SHAPE I J 
ORACCT “I MODEL MODEL 
feast SQUARES ESTIMATION 4 
PRECISION 
REQUIREMENTS 
- IMAGE DATA IMAGE DATA 
  
  
  
PURELY DIGITAL 
IMAGE PROCESSING 
GENERATION OFDERIVED PRODUCTS te 
GENERATION OF GEOMETRICALLY <———— Moe OF GEOMETRIC IMAGE DISTORTION 
CORRECTED (RESAMPLED) IMAGES 
  
  
  
  
  
  
  
  
  
  
  
  
th 
  
  
  
  
fig.2: Precision correction of MEOSS image data, 
functional block diagram. 
204