Ian James Craddock,Maciej Bartlomiej Klemm,Ralph Benjamin
申请号:
US12741370
公开号:
US08862409B2
申请日:
2008.11.04
申请国别(地区):
US
年份:
2014
代理人:
摘要:
A method of measuring the contents of a search volume. The method includes: energizing one or more transmitters so as to transmit electromagnetic wave energy into the search volume detecting the effect of the search volume on the passage of the electromagnetic wave energy by recording two or more signals, each signal being associated with a different propagation path (typically either a monostatic or bistatic path) within the search volume aligning the signals in order to generate two or more aligned signals which are synthetically focused on a desired voxel in the search volume, each aligned signal being associated with a different propagation path (typically either a monostatic or bistatic path) within the search volume calculating a quality factor by processing the aligned signals to generate two or more data values, and processing the data values to generate a quality factor, the quality factor being indicative of a degree of coherence in the aligned signals summing the aligned signals to generate a summed signal and processing the summed signal to generate an output which is indicative of the internal structure of the search volume at the location of the desired voxel, the output varying in accordance with the quality factor.