Title :
Improvement of measurement accuracy of FMCW level radar
Author :
Guoqing, Qi ; Xinle, Jia
Author_Institution :
Electron. & Inf. Eng. Coll., Dalian Maritime Univ., China
Abstract :
A range estimation method for FMCW level radar based on the phase of the FFT of the beat-note signal is presented. The ambiguity in the phase measurement is eliminated by the phase difference of two segmented FFTs. Formula for evaluating the RMSE (root mean square error) of range estimation is given, which fitted well with computer simulation results
Keywords :
CW radar; FM radar; distance measurement; fast Fourier transforms; level measurement; mean square error methods; phase measurement; FMCW radar level measurement accuracy; RMSE; beat-note signal FFT phase; computer simulations; distance estimation accuracy; fast Fourier transform; phase measurement; phase measurement ambiguity elimination; range estimation method; root mean square error; segmented FFT spectra phase difference; Computer simulation; Educational institutions; Estimation error; Flexible printed circuits; Frequency estimation; Level measurement; Mean square error methods; Phase estimation; Phase measurement; Radar measurements;
Conference_Titel :
Radar, 2001 CIE International Conference on, Proceedings
Conference_Location :
Beijing
Print_ISBN :
0-7803-7000-7
DOI :
10.1109/ICR.2001.984780
