1. An FMCW radar for accurate level measurements;Edvardsson,1979
2. A pulse radar gauge for level measurement and process control, Microwave Symposium Digest;Motzer;IEEE MTT-S Int.,2000
3. High precision self-adaptive radar gauging under clutter environments;Sai,2006
4. Application of state-space frequency estimation to a 24-GHz FMCW tank level gauging system;Vossiek,2003
5. Dielectric tube antennas for industrial radar level gauging;Armbrecht;IEEE Trans. Antennas Propag.,2012