CHIRP TYPE MULTI-GROUND RADAR SYSTEM

To provide an underground radar system capable of increasing the depth of exploration while maintaining the resolution of detected target.SOLUTION: A multi-radar system uses multiple chirped underground radars at the same place. The multi-radar system employs a method in which each radar manages tim...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	YAMADA SHIGEJI, NOZU TOSHIMITSU
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETECTING MASSES OR OBJECTS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES GEOPHYSICS GRAVITATIONAL MEASUREMENTS LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	To provide an underground radar system capable of increasing the depth of exploration while maintaining the resolution of detected target.SOLUTION: A multi-radar system uses multiple chirped underground radars at the same place. The multi-radar system employs a method in which each radar manages time band to send and receive to prevent neighboring antennas from interfering each other even when plural radar systems are used simultaneously. Since the chirp wave is a long pulse wave in which the transmission signal is transmitted for a long time and high output can be obtained, the depth of exploration can be increased. A pulse compression circuit is adopted in the receiving circuit for converting to impulse to improve the resolution.SELECTED DRAWING: Figure 6 【課題】検出物標の分解能を維持しつつ、探査深度の増大を図ることができる地中レーダシステムを提供する。【解決手段】チャープ方式の地中レーダを複数、同一場所で使用可能にしたマルチレーダシステム。複数のレーダシステムを同一場所にて同時使用しても、隣同士のアンテナで受信信号に干渉が発生しないようにするため、それぞれのレーダが送受信する時間帯を管理する方式を採用している。長い時間送信信号を送信するので高出力が得られ、探査深度を増加することが可能になるチャープ波が長いパルス波であることから受信回路においてインパルスに変換するパルス圧縮回路を採用して分解能向上を実現した。【選択図】図６