About Kalman Filter 1.matlab file contains all the related documents about Kalman Filter including experiments, lat/logi to UTM convertion and Kalman Filter. 2.ejml-master file contains all the Kalman Filter implementation by java. The path of this project is:ejml-master/examples/src/org/ejml/example. In this path there are CSVReader.java and Compression_GPS.java which used to receive position data and implement Kalman Filer respectively. 3.GPS_Compression contains CSV reading file and ZIP compression file.