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1. (WO1992009903) STC APPARATUS FOR UNDERGROUND BURIED MATTER PROBING EQUIPMENT
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/009903 International Application No.: PCT/JP1991/001604
Publication Date: 11.06.1992 International Filing Date: 21.11.1991
IPC:
G01S 7/34 (2006.01) ,G01S 13/88 (2006.01)
G PHYSICS
01
MEASURING; TESTING
S
RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7
Details of systems according to groups G01S13/, G01S15/, G01S17/127
02
of systems according to group G01S13/58
28
Details of pulse systems
285
Receivers
34
Gain of receiver varied automatically during pulse-recurrence period, e.g. anti-clutter gain control
G PHYSICS
01
MEASURING; TESTING
S
RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
13
Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
88
Radar or analogous systems, specially adapted for specific applications
Applicants:
KABUSHIKI KAISHA KOMATSU SEISAKUSHO [JP/JP]; 3-6, Akasaka 2-chome Minato-ku Tokyo 107, JP (AllExceptUS)
ICHIMURA, Yasuhiko [JP/JP]; JP (UsOnly)
DATE, Kazuaki [JP/JP]; JP (UsOnly)
Inventors:
ICHIMURA, Yasuhiko; JP
DATE, Kazuaki; JP
Agent:
KIMURA, Takahisa; 6F Ginza Daisaku Building 11-2, Ginza 2-chome Chuo-ku Tokyo 104, JP
Priority Data:
2/31946522.11.1990JP
Title (EN) STC APPARATUS FOR UNDERGROUND BURIED MATTER PROBING EQUIPMENT
(FR) APPAREIL STC POUR EQUIPEMENT DE SONDAGE DE MATIERE ENFOUIE DANS LE SOL
Abstract:
(EN) An STC apparatus which is used for a receiver of underground matter probing equipment for receiving the reflected waves, from an underground buried matter, of electromagnetic pulses radiated towards and into the ground and for measuring the position of the underground buried matter, and which variably sets the reception sensitivity of the receiver in accordance with a reception distance using STC signals, and STC signal variable setting means for variably setting the STC signals. The present invention makes it possible to variably and arbitrarily set STC curve characteristics.
(FR) Appareil STC utilisé pour un récepteur d'équipement de sondage de matière enfouie dans le sol, recevant les ondes que réfléchit une matière enfouie dans le sol lorsqu'elle est soumise à un rayonnement électromagnétique impulsionnel dirigé dans le sol, et permettant de mesurer la position de la matière souterraine. L'appareil fait varier la sensibilité du récepteur en fonction de la distance de réception en employant des signaux STC, et un régulateur variable de signaux STC, qui fait varier ces signaux. La présente invention permet de faire varier de manière arbitraire les caractéristiques de la courbe STC.
Designated States: KR, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)