Title :
Automatic signal processing of front monitor radar for tunneling machines
Author :
Sato, Toru ; Takeda, Ken-ya ; Nagamatsu, Takashi ; Wakayama, Toshio ; Kimura, Iwane ; Shinbo, Tetsuya
Author_Institution :
Dept. of Electron. & Commun., Kyoto Univ., Japan
fDate :
3/1/1997 12:00:00 AM
Abstract :
It is planned to install a front monitor impulse radar on the surface of the rotating drill of tunneling machines in order to detect obstacles such as casing pipes of vertical borings. The conventional aperture synthesis technique can no more be applied to such cases because the radar image of a pipe does not constitute a hyperbola as is the case for linear scanning radars. We have developed a special purpose signal processing algorithm with the aid of the discrete model fitting method, which can be used for any pattern of scanning. The details of the algorithm are presented together with the results of numerical simulations and test site experiments
Keywords :
civil engineering computing; least squares approximations; radar applications; radar computing; radar detection; radar signal processing; aperture synthesis technique; automatic signal processing; casing pipes; discrete model fitting method; front monitor impulse radar; linear scanning radars; nonlinear least squares fitting algorithm; numerical simulations; obstacle detection; radar image; scanning pattern; special purpose signal processing algorithm; test site experiments; tunneling machines; vertical borings; Boring; Computerized monitoring; Condition monitoring; Numerical simulation; Radar detection; Radar imaging; Radar signal processing; Signal processing algorithms; Signal synthesis; Tunneling;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
