Title :
A method for target estimation of level radar
Author :
Chengge, Zong ; Yeshu, Yuan ; Xinchao, Zang ; Xin, Wang
Author_Institution :
Harbin Inst. of Technol., China
Abstract :
The structure and principle of the signal processor of a frequency modulated continuous wave (FMCW) radar which is used to measure the liquid level of the oil tanks are described. Two methods, SECF (spectrum envelope curve fitting) and SEEE (spectrum envelope edgeway estimating), are presented for the estimation of the liquid level and, these methods are compared in terms of their abilities to extract the level information from the smeared radar returns and of the level estimation accuracy. The results obtained in a field experiment show that the spectrum envelope curve fitting method is more robust and more accuracy than the SEEE method. An accuracy of better than 1/104 in the liquid level measurement has been achieved by means of the SECF method
Keywords :
CW radar; FM radar; curve fitting; level measurement; radar applications; radar signal processing; spectral analysis; FMCW radar; field experiment; frequency modulated continuous wave radar; level estimation accuracy; level radar; liquid level measurement; signal processor; smeared radar returns; spectrum envelope curve fitting; spectrum envelope edgeway estimating; target estimation; Curve fitting; Data mining; Frequency measurement; Frequency modulation; Fuel storage; Level measurement; Radar measurements; Radar signal processing; Robustness; Signal processing;
Conference_Titel :
Radar, 1996. Proceedings., CIE International Conference of
Conference_Location :
Beijing
Print_ISBN :
0-7803-2914-7
DOI :
10.1109/ICR.1996.573824
