Calculating the body velocity based on Current statistical model
Fan Long · Cehui kexue · 2011
The paper designed the adaptive Kalman arithmetic based onCurrentstatistics model to calculate body velocity,by analyzing theCurrentstatistics model which is the description of the maneuverable body.It made use of the phase observation which was obtained from aviation experiment,doing the time-differential calculation to get the phase-rate,and composing of double difference,obtaining the double difference Doppler observation.By calculating and analyzing the result through using of designed arithmetic,and then comparing with the filter results of CA model,the results were got finally and showed that under the condition of static and dynamic,Currentstatistics model could reflect mobile state of flight more truly,the velocity accuracy of the two state could reach to millimeter level.