Research and Development on the Method to Investigate Archaeological Sites Using Pulse Radar

脉冲雷达考古遗址勘察方法研究进展

• 批准号: 04214107
• 负责人: ARAI Ikuo
• 金额: $ 26.62万
• 依托单位: The University of Electro-Communications
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research on Priority Areas
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04214107/
• 关键词: subsurface; investigation of archaeological ruins; pulse radar; chirp signal; pulse compression; investigation of void; bore hole radar; numerical analysis (FDTD); パルス波; 偏波情報; 地下探査; 画像処理; レーダ; フレキシブルアンテナ; チャープFM; 合成開口技術; ターンスタイルアンテナ; 統計処理

Subsurface radar that surveys subsurface features using a electromagnetic pulse is equipment that visualizes the subsurface features fast and no-destructively from the surface of the ground. The subsurface radar has been developed primarily for the purpose to detect communication cables, power supply cables, gas pipes, and water supply pipes etc.in urban areas. Whereas it becomes popular in survey for road construction and buildig construction, it has not been developed for the investigation of archaeological features which requires to distinguish the shapes and the materials of the buried objects. Because the buried objects in the archaeological sites are often non-metal such as earthenware and stone implements, which reflect the pulses more weakly than metal objects, the subsurface radar for the archaeological feasures is required to be high sensitive and be capable of operation in mountains, forests, and wasteland. Threfore the usual subsurface radar that is designed to be used on a flat place like a paved road cannot be used in archaeology. From the background and using the superiority of the pulse radar, we have developed the subsurface radar suitable for archaeology and studied the signal processing technology to visualize the subsurface features clearly.As a result, we have attained the following.1. We have developed the pulse compression radar using a chip signal and demonstrated that it can expand the detection range compared with the conventional subsurface radar if it is a small and low power system.2. We have accomplished the method of the numerical analysis to calculate the echo from subsurface voids in the archaeological sites and the echo form random media.3. We have studied the method to survey the archaeological sites using a bore hole radar and proved to be effective in the survey on the deep subsurface.

使用电磁脉冲调查地下特征的地下雷达是可视化地下特征的设备，从地面上快速而无损坏。地下雷达主要是为了检测通信电缆，电源电缆，气管和供水管等的目的。尽管它在道路建设和建筑构造的调查中变得很受欢迎，但尚未开发出来的考古特征，该考古特征需要区分埋入物体的形状和材料。由于考古遗址中的埋入物体通常是非金属的，例如陶器和石材工具，这些物体比金属物体更弱反映脉冲，因此考古盛会的地下雷达具有很高的敏感性，并且能够在山，森林和荒原上运行。这样一通常的地下雷达，该雷达被设计为在像铺好的道路这样的平坦地方使用，无法在考古学中使用。从背景和利用脉冲雷达的优势来看，我们开发了适合考古学的地下雷达，并研究了信号处理技术以清楚地看到地下特征。结果，我们达到了以下内容。1。我们已经使用芯片信号开发了脉冲压缩雷达，并证明，如果它是一个小功能系统，则可以扩展与常规地下雷达相比的检测范围。2。我们已经完成了数值分析的方法，以计算考古站点中地下空隙的回声和回声形式随机介质3。我们已经研究了使用孔雷达雷达调查考古位点的方法，并在对深度地面的调查中被证明是有效的。

项目成果

Motoyuki SATO: "Recent Progress in borehole Radars and Ground Penetrating Radars in japan" IEICE Trans.on Communications. E76-B. 1236-1242 (1993)

Motoyuki SATO：“日本钻孔雷达和探地雷达的最新进展”IEICE Trans.on Communications。

J.Sonoda,Y.Miyazaki: "Dynamic Characteristics of Electromagnetic Scattering of Pulse Wave by Buried Object using FD-TD Method" Proc.of Int.Symp.on Electromagnetic Compatibility(EMC'94).18P407. 382-385 (1994)

J.Sonoda，Y.Miyazaki：“使用FD-TD方法的埋地物体的脉冲波电磁散射的动态特性”Proc.of Int.Symp.on电磁兼容性(EMC94).18P407。

佐藤源之: "Recent Progress in Borehole Radars and Ground Penetrating Radars in Japan" IEICE Trans.Comm.Vol.E76-B,No.10 Oct.1993. 10. 1236-1242 (1993)

Motoyuki Sato：“日本钻孔雷达和探地雷达的最新进展”IEICE Trans.Comm.Vol.E76-B，No.10 Oct.1993 10. 1236-1242 (1993)

Motoyuki SATO: "Subsurface Crack Detection by Polarimetric Borehole Radar" Proc.1994 Int.Symp.on Noise and Clutter Rejection in Radars and Imaging Sensors, ISNCR'94. 359-364 (1994)

Motoyuki SATO：“极化钻孔雷达进行地下裂纹检测”Proc.1994 Int.Symp.on 雷达和成像传感器中的噪声和杂波抑制，ISNCR94。

真鍋克也、宮崎保光: "ベクトル境界要素法を用いた完全導電性直方体による電磁散乱波の解析" 電気学会論文誌c. 116-c. 22-26 (1996)

Katsuya Manabe、Yasumitsu Miyazaki：“使用矢量边界元法对完美导电长方体的电磁散射波进行分析”，日本电气工程师学会汇刊 c 116-c（1996 年）。