A compact lightweight multipurpose ground-penetrating radar for glaciological applications
A compact lightweight multipurpose ground-penetrating radar for glaciological applications
复制标题
适用于冰川应用的紧凑型轻型多用途探地雷达
DOI：
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发表时间：
2011
影响因子：
3.4
通讯作者：
K. Frolovskiy
中科院分区：
文献类型：
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作者：
E. Vasilenko;F. Machío;J. Lapazaran;F. Navarro;K. Frolovskiy
摘要：我们描述了一种紧凑的轻型脉冲雷达，用于地下结构的无线电回波探测，专为冰川学应用而设计。雷达工作频率在10到75兆赫之间。它的主要优点是具有高信噪比和相应的132 dB宽动态范围，这主要是由于它能够执行实时堆叠（高达4096走线）以及高传输功率（峰值电压2800 V）。在100 MHz采样频率下，最大记录时间窗为40 μs，可从3300 m深处获得雷达回波。它是一种多功能雷达，适用于不同的地球物理测量（共同偏移剖面、共同中点、透光等）和不同的剖面设置，如雪地摩托和雪橇车队，或携带在背包中，由一个人操作。其低功耗（发射机为6.6 W，接收机为7.5 W）允许系统在电池供电下运行bb70小时，所有设备，天线和电池的总重量小于9公斤。
Abstract We describe a compact lightweight impulse radar for radio-echo sounding of subsurface structures designed specifically for glaciological applications. The radar operates at frequencies between 10 and 75 MHz. Its main advantages are that it has a high signal-to-noise ratio and a corresponding wide dynamic range of 132 dB due mainly to its ability to perform real-time stacking (up to 4096 traces) as well as to the high transmitted power (peak voltage 2800 V). The maximum recording time window, 40 μs at 100 MHz sampling frequency, results in possible radar returns from as deep as 3300 m. It is a versatile radar, suitable for different geophysical measurements (common-offset profiling, common midpoint, transillumination, etc.) and for different profiling set-ups, such as a snowmobile and sledge convoy or carried in a backpack and operated by a single person. Its low power consumption (6.6 W for the transmitter and 7.5 W for the receiver) allows the system to operate under battery power for >7 hours with a total weight of <9 kg for all equipment, antennas and batteries.