Data compression unit(DCU)can compress the solar images into 1/5 of original data and the processing time is less than 6 seconds,and the SNR is greater than 26 dB which satisfies the SST images requrements.

• 测试结果表明,DCU可以在6s内对2048×1024pixels的太阳图像进行大于5倍压缩,压缩信噪比(SNR)优于26dB,均满足SST图像压缩需求。