04-01-2018 дата публикации
Номер: US20180003814A1
An apparatus includes an extendable wand, and a sensor head coupled to the wand. The sensor head includes a continuous wave metal detector (CWMD) and a radar. When the wand is collapsed, the wand and the sensor head collapse to fill a volume that is smaller than a volume filled by the sensor head and the wand when the wand is extended. Frequency-domain data from a sensor configured to sense a region is accessed, the frequency-domain data is transformed to generate a time-domain representation of the region, a first model is determined based on the accessed frequency-domain data, a second model is determined based on the generated time-domain representation, the second model being associated with a particular region within the sensed region, and a background model that represents a background of the region is determined based on the first model and the second model. 1an extendable wand; anda sensor head coupled to the wand, the sensor head comprising a continuous wave metal detector (CWMD) and a radar, wherein, when the wand is collapsed, the wand and the sensor head collapse to fill a volume that is smaller than a volume filled by the sensor head and the wand when the wand is extended.. An apparatus comprising: This application is a continuation of U.S. patent application Ser. No. 14/460,958, filed Aug. 15, 2014, now allowed, which is a continuation of U.S. patent application Ser. No. 13/081,153, filed Apr. 6, 2011, now U.S. Pat. No. 8,842,035, which claims the benefit of U.S. Provisional Application No. 61/322,284, filed Apr. 8, 2010, and titled SENSOR HEAD INCLUDING A TRANSCEIVER; U.S. Provisional Application No. 61/409,899, filed Nov. 3, 2010, and titled SENSOR HEAD INCLUDING A TRANSCEIVER; U.S. Provisional Application No. 61/411,759, filed Nov. 9, 2010, and titled SENSOR HEAD INCLUDING A TRANSCEIVER; and U.S. Provisional Application No. 61/448,869, filed Mar. 3, 2011, and titled OBJECT AND WIRE DETECTION. The disclosures of these prior provisional applications ...
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