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MAXIMUM-LIKEKIHOOD ESTIMATION OF THE CORRELATION FUNCTION OF A THRESHOLD SIGNAL, AND ITS APPLICATION TO THE MEASUREMENT OF THE TARGET SCATTERING FUNCTION IN RADAR ASTRONOMY
MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB
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The maximum-likelihood estimate is derived of the signal correlation function under threshold conditions, where the signal is weak relative to the noise in a sense that will be defined. Such threshold conditions are to be expected in radar astronomy. Also, concentrating on the radar astronomy environment or on any environment that is characterized by a propagation medium having mutually independent, statistically stationary fluctuations at a multiplicity of delays, the maximum-likelihood estimate of the scattering function of the target is deduced. Author
APPROVED FOR PUBLIC RELEASE