High-resolution long-range radar imaging at 94 GHz
High-resolution long-range radar imaging at 94 GHz
复制标题
94 GHz 高分辨率远程雷达成像
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
D. Macfarlane
中科院分区：
文献类型：
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作者：
D. Robertson;D. Macfarlane
AVTIS是一种小型便携式遥感仪器，最初设计用于对活火山熔岩穹丘进行地面勘测。它的主要工作模式是有源的，使用单基地200 mW 94 GHz FMCW雷达。94GHz信号通过倍增的7GHz源提供。仔细选择低噪声、高线性的7GHz源，将雷达的范围扩展到至少7公里，同时保持1米的距离分辨率。我们将给出的结果显示的距离分辨率和分离的目标的自然地形在远距离（>1km）和人造目标在近距离（<1km）的歧视。对于近距离成像，可以增加信号带宽以提高距离分辨率，从而可以检索更高质量的图像。
AVTIS is a compact portable remote sensing instrument originally designed for ground based surveying of active volcanic lava domes. Its primary mode of operation is active, using a monostatic 200mW 94GHz FMCW radar. The 94GHz signal is provided via a multiplied 7GHz source. Careful choice of a low-noise, highly linear 7GHz source has extended the range of the radar to at least 7km whilst retaining a range resolution of 1m. We will present results showing the range resolution and discrimination of separated targets for both natural topography at far ranges (>1km) and man made targets at close ranges (<1km). For close range imaging, the signal bandwidth can be increased to improve the range resolution allowing finer quality imagery to be retrieved.