SYSTEM FOR THE DETECTION AND CLASSIFICATION OF BURIED UNEXPLODED ORDNANCE

摘要

A sensor system for detecting buried metal objects such as unexploded ordnance and the collection of data for the classification of the detected objects based on parameters extracted from the collected data includes a wheeled cart, positioned on which is an array of transmitter coils for transmitting a series of excitation signals onto the area of interest and a sensor array of receiver coils and preamplifiers for receiving back the resultant eddy current decays emitted by the buried objects, a computer, and data acquisition electronics for acquiring and storing the received decays as decay data within the computer. The incoming EMI data are digitized and a data fitting process is performed to extract fit location and shape parameters. These data can be transferred to other data analysis systems for comparison to previously recorded signatures to determine whether the received decay data from the area of interest is attributable to buried metal objects or conversely to an object constituting an anomaly.

主权项

1. A sensor system designed for the detection of buried metal objects and the collection of data for the classification of the detected objects based on parameters extracted from the collected data, comprising:
a wheeled cart; an array of transmitter coils positioned onboard the wheeled cart for transmitting a series of excitation signals onto an area of interest and a sensor array of receiver coils and preamplifiers for receiving back the resultant eddy current decays emitted by the buried unexploded ordnance or other metallic objects; a computer; data acquisition electronics for acquiring and storing the received decays as decay data within the computer; and wherein the computer comprises a computer-readable storage medium for recorded data and for software that, when executed by the computer, cause the computer to operate the electromagnetic inductions (EMI) transmitters and receivers, digitize the incoming EMI data, and performing a data fitting process to extract fit location and shape parameters; and wherein these data can be transferred to other data analysis systems for comparison to previously recorded signatures, thereby determining whether the received decay data from the area of interest is attributable to buried metal objects or conversely to an object constituting an anomaly.