Tracking of Metallic Objects Using a Retro-Reflective Array at 26 GHz
Tracking of Metallic Objects Using a Retro-Reflective Array at 26 GHz
复制标题
使用 26 GHz 回归反射阵列跟踪金属物体
DOI：
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发表时间：
2010
影响因子：
5.7
通讯作者：
K. Sarabandi
中科院分区：
文献类型：
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作者：
J. Vitaz;A. Buerkle;K. Sarabandi
高杂波环境中目标的检测和跟踪往往构成了一个困难的工程挑战，因为场景中包含的强杂波后向散射使得很难区分感兴趣的目标。提出了一种设计概念，以帮助在远距离检测和跟踪的大型金属物体在仓库设置。这包括设计和实现一个主动逆反射阵列系统，能够确定精确的位置和识别的对象。为了实现这一点，一个独特的串联馈电接地共面波导贴片天线的设计和实现元件之间的交叉耦合最小。这种紧凑的阵列具有相对较大的雷达截面（RCS），同时保持所需的后向反射率。此外，倾斜波束被并入线性串联馈电阵列中，以将平面阵列结构的大RCS与期望的调制后向反射RCS隔离。这种增强检测的方法在26 GHz下实现。将高速PIN开关结合到阵列结构中为标签提供了唯一的标识。给出了在杂波环境中该阵列调制雷达散射截面的测量结果。
The detection and tracking of targets in highly cluttered environments often poses a difficult engineering challenge as the strong clutter backscatter contained in the scene makes it difficult to distinguish the target of interest. A design concept to aide in standoff detection and tracking of large metallic objects in a warehouse setting is presented. This includes the design and implementation of an active retro-reflective array system that is able to determine the precise location and identification of an object. To accomplish this, a unique series fed grounded coplanar waveguide patch antenna is designed and implemented with minimal cross coupling among elements. This compact array has a relatively large radar cross-section (RCS) while maintaining the desired retro-reflectivity. Additionally, a tilted beam is incorporated in the linear series-fed array to isolate the large RCS of the planar array structure at boresight from the desired modulated, retro-reflective RCS. This method for enhanced detection is implemented at 26 GHz. The incorporation of the high-speed PIN switches into the array structure provide the tag with a unique identification. Measurement results for the modulated RCS from such an array in a cluttered environment are presented.