Sponsored by the National High Technology Research and Development Program(Grant No.2012AA12A209);the National Natural Science Foundation of China(Grant No.41174028,41374033);the Key Laboratory Development Fund from the Ministry of Education of China(Grant No.618-277176);the LIESMARS Special Research Fund,the Research Start-up Fund from Wuhan Univesity(Grant No.618-273438);the Fundamental Research Funds for the Central Universities(Grant No.201161802020002)
GNSS( global navigation satellite systems) are unavailable in challenging environments such as urban canyon and indoor locations due to signal blocking and jamming. Camera / IMU( inertial measurement units) integrated...