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重点讨论卫星遥感图象的高速实时ADPCM压缩编码。首先,我们提出了一种自适应预测器,并对其简化算法进行了计算机模拟。模拟结果表明,由于自适应预测,信噪比可获得0.09～2.07dB的提高。同时也给出了3bit/pexl的编码器硬件实现。
Focus on satellite remote sensing image of high-speed real-time ADPCM compression coding. First of all, we propose an adaptive predictor and simulate its simplified algorithm. Simulation results show that the SNR can be improved by 0.09 ~ 2.07dB due to adaptive prediction. Also given the 3bit / pexl encoder hardware implementation.