用射頻穿透墻壁

　　雖然它是合理的眾所周知，軍事和執法機構利用射頻技術（以及熱，聲，紅外），讓他們看到通過墻壁，它是不太認識到，有民用使用這種類型的技術，以及。

　　許多木匠，甚至“自己動手”房主已經發現了一個小磁螺柱發現可以幫助確定釘子被驅動到一個實心梁。然而，螺柱并不是墻上唯一值得關注的東西。偶然被金屬鉆頭刺穿的電線會引發火災。意外刺破煤氣線可導致爆炸后果。視頻線，電話線，報警系統線，網絡，等等都可以不見了，同樣脆弱。

　　現代低成本射頻技術正在幫助使這種關注成為過去的事情。高頻半導體和集成電路與先進的處理器和顯示系統，使我們的X射線視覺，當談到創建圖像后墻板。

　　Other useful functions can be performed with this technology including：

　　Presence-of-life detectors to find people buried in rubble

　　Finding underground and buried utility and gas lines

　　Tactical entry or assault

　　A baby monitor that can detect through sheets， blankets， and duvets whether or not an infant is breathing

　　Surveillance devices

　　Bridge and deck inspection

　　Land-mine detection （245 W can penetrate 2 to 4 meters depth at heights of less than 1 meter above the soil or road）

　　Fluid-level sensing

　　Automotive backup radar

　　This article looks at how RF can be used as a wall-penetrating technology and how images can be rendered from it. It examines some techniques and architectures designers can use as a starting point before refining their own designs. All parts， data sheets， tutorials， and development kits referenced here can be found on the Digi-Key website.