On-Board Data Processing for Downlink Optimisation

On-Board Data Processing for Downlink Optimisation

1. Data Compression

   • User Requirements
     • Type of Data Compression
       • Lossless
         • Exploit Statistical Redundancy
       • Near Lossless
         • Exploit Psychovisual Redundancy
       • Lossy
         • Classification of Loss

2. FPGA Implementation

   • High Performance Computing Techniques
     • Parallelisation
     • Utilise On-Chip Hardware
     • Single Instruction, Multiple Data ; SIMD
     • Adaptive/Dynamic Algorithm Design
   • Space Environment Tolerance

3. Pre-Processing of Data

   • Raw Data Characterisation
     • Payload Classification
       • Number of Spectral Bands
         • Exploit Spectral Redundancy
       • Spatial Resolution
     • Content Classification
       • Imagery
         • Exploit Spatial Redundancy
           • Transformation
             • DCT
               • JPEG-Baseline
             • DWT
               • JPEG-2000
               • EZW
               • SPIHT
               • CCSDS-IDC
           • Predictive Coding
             • DPCM
             • CCSDS-LDC
             • Lossless JPEG
             • JPEG-LS
       • Video
         • Exploit Temporal Redundancy
   • Feature Detection
     • Zonal Compression