Implementation of CCSDS lossless compression algorithm for geomagnetic data

Abstract Long-term geomagnetic data monitoring will generate a huge amount of data, and compression algorithms be required to reduce the save storage transmission expenses. To adapt application with limited resources, CCSDS lossless algorithm is applied measurement in our work. This made up two parts: preprocessor an adaptive entropy coder. In this study, unit-delay predictor chosen as based on properties signal, coder chooses suitable for data. A 14-hour continuous was performed. The results reveal that when block size set 64, can obtain ratio field 0.269 0.318. Furthermore, number encoding options three-axis magnetic counted.