| 摘要 |
A method for accurately and quickly mapping from a position immediately forward of a surface traveling vehicle the thickness of ice and variations thereof atop a body of water, as found in winter in the northern United States, Alaska or Canada, by transmitting frequency modulated electromagnetic radiation into the ice, detecting a portion of energy reflected from the remote interface of the ice zone and indicating the two-way travel time of the energy so as to determine ice thickness ahead of the surface vehicle. In this way zones which may not support the surface vehicle can be detected in advance of the motion of the vehicle over these zones and thus avoided. Not only can lives be saved, but equipment loss can be avoided.
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