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Detection occurs when the cell under test exceeds the threshold. In most simple CFAR detection schemes, the threshold level is calculated by estimating the noise floor level around the cell under test (CUT). This can be found by taking a block of cells around the CUT and calculating the average power level.
Automatic target recognition (ATR) is the ability for an algorithm or device to recognize targets or other objects based on data obtained from sensors.. Target recognition was initially done by using an audible representation of the received signal, where a trained operator who would decipher that sound to classify the target illuminated by the radar.
Passive radar (also referred to as parasitic radar, passive coherent location, passive surveillance, and passive covert radar) is a class of radar systems that detect and track objects by processing reflections from non-cooperative sources of illumination in the environment, such as commercial broadcast and communications signals.
Flight recorders from the passenger jet that crashed in South Korea last month, killing more than 170 people, stopped working minutes before the plane belly-landed and exploded on the runway ...
WASHINGTON -- Secret Service agents on Friday officially said goodbye to “Deacon,” the code-name they used for former President Jimmy Carter, who had the longest-serving security detail in the ...
The U.S. Justice Department said on Tuesday that it has deleted malware planted on more than 4,200 computers by a group of criminal hackers who were backed by the People's Republic of China. The ...
Synthetic-aperture sonar (SAS) is a form of sonar in which sophisticated post-processing of sonar data is used in ways closely analogous to synthetic-aperture radar. Synthetic-aperture sonars combine a number of acoustic pings to form an image with much higher along-track resolution than conventional sonars.
Mandatory Credit: Katie Stratman-Imagn Images (Katie Stratman-Imagn Images) No. 3 Iowa State has one more nonconference matchup before it heads into what promises to be a challenging Big 12 ...