The instantaneous frequency measurement (IFM) receiver is capable of measuring the center frequency of single frequency pulses over a wide range (bandwidth) of center frequencies. Because of various constraints, the frequency resolution requirement results in long correlator delay times that reduce the single correlator bandwidth. A large bandwidth can be achieved only if two or more correlators are used. The problem of estimating frequency is then reduced to the simultaneous congruence problem of number theory. A design procedure is presented for solving the congruence problem for a given amount of noise protection, a stated frequency resolution, a minimum bandwidth, and a fixed level of precision (bits) in the IFM receiver.<>
A noise insensitive solution to an ambiguity problem in spectral estimation
IEEE Transactions on Aerospace and Electronic Systems ; 25 , 5 ; 729-732
01.09.1989
320074 byte
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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