JP6989152B2 - 表面貫通レーダー(spr)を用いた位置特定のフットプリントの拡張 - Google Patents
表面貫通レーダー(spr)を用いた位置特定のフットプリントの拡張 Download PDFInfo
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Description
[0001]この出願は、2017年1月27日に出願された「LGPR Capability」という名称の米国仮特許出願第62/451,313号、および2017年7月7日に出願された「Localizing Ground−Penerating Radar」という名称の米国仮特許出願第62/529,740号の早い出願日の利益を請求するものであり、これらはその全体が参照により本明細書に組み込まれる。
[0002]本発明は、米国空軍により授与された契約番号FA8721−05−C−0002の下で政府の支援によりなされた。政府は本発明に一定の権利を有する。
[0003]本発明は、一般に、表面特性を特定するための方法およびシステムに関する。この方法およびシステムは、乗物を制御するために使用することができる。
[0004]車両の自律航行では、広範なマッピングとマッピングデータを取得して保存する必要がある。マッピングデータの取得と保存には多くのリソースが必要になる可能性があり、費用と時間がかかる場合がある。さらに、自律車両航行のためにマッピングデータを使用するには、正確かつ精密な送受信および/または検知装置が必要になる場合があり、これには画像の粒度と範囲の両方に制限がある場合がある。したがって、自動車両航行で使用される送受信および/または検知機器をより効率的に使用する方法およびシステムが求められていた。
Claims (20)
- 乗物に搭載された表面貫通レーダー(SPR)システムを用いて位置特定を実行するためにSPRの画像化範囲を拡張する方法において、
少なくとも1のSPR送信素子から少なくとも1のSPR信号を送信するステップと、
少なくとも2のSPR受信素子を介して、物体からのSPR信号の反射を少なくとも部分的に含む応答信号を受信するステップと、
前記少なくとも2のSPR受信素子で前記応答信号が受信される位相の差に基づいて、前記物体が前記SPRシステムの真下の領域の外側の関心領域にあると判断するステップと、
少なくとも部分的に前記物体に基づいて、前記SPRシステムを使用して前記乗物の位置特定を実行するステップと、を含むことを特徴とする方法。 - 前記物体に少なくとも部分的に基づいて、前記SPRシステムを用いた位置特定の実行に関連するマップを拡張するステップをさらに含む、請求項1に記載の方法。
- トラッキングパスが、前記SPRシステムを用いた位置特定の実行に関連するマップと部分的にのみ重複する場合、前記乗物の位置特定を実行することをさらに含む、請求項1に記載の方法。
- 前記物体は、前記SPRシステムのSPRアンテナアレイの下にない、請求項1に記載の方法。
- 前記SPRアンテナアレイの下の領域を越えて前記SPRシステムを用いた位置特定の実行に関連するマップを拡張するステップをさらに含む、請求項4に記載の方法。
- 前記SPRシステムを用いた位置特定の実行に関連するマップを拡張するステップにより、領域のより少ないマッピングパスを実行するステップをさらに含む、請求項5に記載の方法。
- 前記SPRシステムを用いた位置特定の実行に関連するマップを拡張するステップにより、位置特定を実行できる領域を拡張するステップをさらに含む、請求項5に記載の方法。
- 前記少なくとも2つのSPR受信素子を介した前記応答信号の受信に基づいて、前記物体から前記SPRシステムのSPR素子までの距離を特定するステップをさらに含む、請求項1に記載の方法。
- 前記少なくとも2つのSPR受信素子を介した前記応答信号の受信に関連するデータを移行するステップをさらに含む、請求項1に記載の方法。
- 乗物に搭載された表面貫通レーダー(SPR)システムを用いて位置特定を実行するためのSPRの画像化範囲を拡張する方法において、
それぞれ異なるSPR送信素子から2またはそれ以上のSPR信号を送信するステップと、
1のSPR受信素子を介して、物体からの前記2以上のSPR信号の反射を少なくとも部分的に含む2またはそれ以上の応答信号を受信するステップと、
前記2またはそれ以上の応答信号が前記SPR受信素子で受信される位相の差に基づいて、前記物体が前記SPRシステムの真下の領域の外側の関心領域にあると判断するステップと、
少なくとも部分的に前記物体に基づいて、前記SPRシステムを使用して前記乗物の位置特定を実行するステップとを含むことを特徴とする方法。 - 前記物体に少なくとも部分的に基づいて、前記SPRシステムを用いた位置特定の実行に関連するマップを拡張するステップをさらに含む、請求項10に記載の方法。
- トラッキングパスが、前記SPRシステムを用いた位置特定の実行に関連するマップと部分的にのみ重複する場合、前記乗物の位置特定を実行するステップをさらに含む、請求項1に記載の方法。
- 前記物体は、前記SPRシステムのSPRアンテナアレイの下にない、請求項10に記載の方法。
- 対応するSPRアンテナアレイの下の領域を越えて前記SPRシステムを用いた位置特定の実行に関連するマップを拡張するステップをさらに含む、請求項13に記載の方法。
- 前記SPRシステムを用いた位置特定の実行に関連するマップを拡張するステップにより、領域のより少ないマッピングパスを実行するステップをさらに含む、請求項14に記載の方法。
- 前記SPRシステムを用いた位置特定の実行に関連するマップを拡張するステップにより、位置特定を実行できる領域を拡張するステップをさらに含む、請求項14に記載の方法。
- 前記SPR受信素子を介した2またはそれ以上の応答信号の受信に基づいて、前記物体から前記SPRシステムのSPR素子までの距離を特定するステップをさらに含む、請求項10に記載の方法。
- 前記SPR受信素子を介した応答信号の受信に関連するデータを移行するステップをさらに含む、請求項10に記載の方法。
- 乗物に搭載された表面貫通レーダー(SPR)システムで位置特定を行うためにSPRの画像化範囲を拡張する方法において、
第1のSPR送信素子から第1のSPR信号を送信し、第2のSPR送信素子から第2のSPR信号を送信するステップと、
第1のSPR受信素子および第2のSPR受信素子で、物体からの前記第1のSPR信号の反射を少なくとも部分的に含む第1の応答信号を受信するステップと、
前記第1のSPR受信素子および第2のSPR受信素子の少なくとも1つを介して、前記物体からの前記第2のSPR信号の反射を少なくとも部分的に含む第2の応答信号を受信するステップと、
前記第1の応答信号が前記第1のSPR受信素子および前記第2のSPR受信素子で受信される位相の差と、前記第1の応答信号および前記第2の応答信号が前記第1のSPR受信素子および前記第2のSPR受信素子のうちの少なくとも1つを介して受信される位相の差とに基づいて、前記物体が前記SPRシステムの真下の領域の外側の関心領域にあると判定するステップと、
少なくとも部分的に前記物体に基づいて、前記SPRシステムを使用して前記乗物の位置特定を実行するステップとを含むことを特徴とする方法。 - 乗物に搭載された表面貫通レーダー(SPR)で位置特定を行うためのSPRの画像化範囲を拡張するためのシステムにおいて、
第1のSPR信号を送信するように構成された第1のSPR送信素子と、
第2のSPR信号を送信するように構成された第2のSPR送信素子と、
物体からの前記第1のSPR信号の反射を少なくとも部分的に含む第1の応答信号を受信するように構成された第1のSPR受信素子と、
第1の応答信号を受信するように構成された第2のSPR受信素子であって、前記第1および第2のSPR受信素子の少なくとも一方が第2の応答信号を受信するように構成され、ここで第2の応答信号は前記物体からの前記第2のSPR信号の反射を少なくとも部分的に含む、第2のSPR受信素子と、
前記第1および第2のSPR受信素子と通信する1以上のプロセッサであって、
前記第1の応答信号が、前記第1のSPR受信素子および前記第2のSPR受信素子で受信される位相の差と、前記第1の応答信号および前記第2の応答信号が前記第1のSPR受信素子および前記第2のSPR受信素子のうちの少なくとも1つを介して受信される位相の差とに基づいて、前記物体がシステムの真下の領域の外側の関心領域にあると判断し、
少なくとも部分的に前記物体に基づいて前記乗物の位置特定を実行するプロセッサと、
を具えることを特徴とするシステム。
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