Improving Image Quality in Remote Sensing Satellites using Channel Coding

Among other factors that characterize satellite communication channels is their high bit error rate. We present a system for still image transmission over noisy satellite channels. The system couples image compression together with error control codes to improve the received image quality while maintaining its bandwidth requirements. The proposed system is tested using a high resolution satellite imagery simulated over the Rician fading channel. Evaluation results show improvement in overall system including image quality and bandwidth requirements compared to similar systems with different coding schemes.

Authors:

• H. M. Behairy
• M. S. Khorsheed

Keywords:

• Image Transmission
• Image Compression
• Channel Coding
• Error-Control Coding
• DCT
• Convolution Codes
• Viterbi Algorithm
• PCGC.

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