Page:Advanced Automation for Space Missions.djvu/38

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al. (1979).


TABLE 2.6. ONBOARD DATA REDUCTION PROCESSES.


Preprocessing Name image region Format image data Apply sensor corrections






Processing Cross-correlate image and map Geometric correction Resample data Obtain niche boundary Generate niche mask Process niche data Combine data across sensors Detect and characterize anomalies






Postprocessing Attach niche labels User tags Assign priorities Update data base

TABLE 2.7. ESTIMATED SPEED OF COMPUTATIONS USING MASSIVELY PARALLEL PROCESSOR. Function


Function 108 Hz clock Area sec Average 50 sec Variance 0.11 msec Slope 1.4 jusec Fourier transform 11.7 msec Histogram 1.5 msec Classification 0.6 msec Matching two images 81.8 msec Resampling 0.05 msec



REQUEST SCHEDULE AND PROCESSING REQUIREMENTSN FILE WORLD MODEL EXTRACT SCHED. FOR NEXT OBSERVATION PERIOD ADJUST PORTION OF MODEL AND FORECAST OBSERVABLES NEXT PASS SCHEDULE AND WORLD MODEL SEGMENT

Figure 2.15.- IESIS uplink processing.