KEYWORDS: Data fusion, Sensors, Information fusion, Filtering (signal processing), Electronic filtering, Computer programming, Digital signal processing, Computer simulations, Field programmable gate arrays, Computing systems
To solve the real-time and reliability problem of tracking servo-control system in optoelectronic theodolite, a multisensors
parallel processing system was proposed. Misdistances of three different wavebands were imported into system,
and then prediction was done in DSP1 to get the actual position information. Data fusion was accomplished in PPGA
imported by multi channel buffer serial port. The compound position information was used to control the theodolite. The
results were compared with external guide data in DSP2 to implement correction of above calculation, and then were
imported to epistemic machine through PXI interface. The simulation experiment of each calculation unit showed that
this system could solve the real-time problem of feature level data fusion. The simulation result showed that the system
can satisfy the real-time requirement with 1.25ms in theodolite with three imaging systems, while sampling frequency of
photoelectric encoder was 800 Hz.
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