dengan metode DGPS. Dari perbandingan yang dilakukan diperoleh selisih rata-rata luas bidang tanah antara pengukuran total station dan receiver GPS 2geodetic yaitu 0,01909 m dengan standar deviasi 0,113659. Sedangkan selisih rata-rata luas bidang tanah hasil pengukuran total station dan receiver GPS mapping yaitu 0,7152 m2 denganEach reference station calculates the difference between its highly accurate known position and its less accurate satellite-derived position. The stations broadcast this data locally—typically using ground-based transmitters of shorter range.
Differential GPS (DGPS) uses a network of fixed, ground-based reference stations to find the location relative to a fixed point of reference. It depends on two receivers i.e reference and rover receiver where reference receiver is the stationary receiver which is fixed to a certain position and is known to the system whereas rover is the user.
Perbedaan mendasar antara GPS dan DGPS terletak pada keakuratannya, DGPS lebih akurat daripada GPS. DGPS sengaja dirancang untuk mengurangi degradasi sinyal. GPS memberikan akurasi sekitar 10 meter, namun DGPS dapat memberikan akurasi sekitar 1 meter, bahkan melebihi 10 cm tersebut.
So, the difference between RTK and DGPS is that DGPS is the traditional differential GPS. RTK is a specific type of DGPS. but it uses a newer technology than the traditional DGPS. RTK stands for real-time kinematic and commonly uses the RTCM protocol. The traditional DGPS uses an older antiquated protocol while RTK uses a newer algorithm, and 4UbiKWC.perbedaan gps dan dgps
