The Antarctic ice sheet is the largest block of ice on Earth,a tiny change of its ice sheet will have a significant impact on sea level change,so it plays an im
The precise point positioning( PPP) technology is applied to an airborne gravity survey. By analyzing the advantages and disadvantages of several velocity and acceleration measurement methods and in c
A new type of seismic intensity meter based on MEMS accelerometer is introduced. It employs STM32F107 as the data processing core and detects the changes of acc