An Efficient Scheme for GPS Data Compression
Xianhui Lu · Zhongguo tiedao kexue · 2005
According to the characteristics of GPS data in static measurement, information source coding was carried out for the received GPS data collected from the observation spot with the help of the combination of eliminating redundancy of data, dictionary coding and differential Huffman coding method. Compared with the existing data compression technology, the proposed scheme demands less hardware resources. The coding speed is faster and preferable compression ratio can be achieved. About 25 percent of GPS data can be (reduced) in (receiving) device with an 8-bit microprocessor. So the lossless compression of GPS data can be (realized) and the communication loads can be released in low performance receiving device without any additional change of hardware resource.