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Selection of Phase Sensitive Detectors for Space Radar

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1 Author(s)
Williams, W.J. ; Electronics and Space Division, Emerson Electric, St. Louis, Mo.

The phase-locked loop has been suggested as a possible replacement for the banks of contiguous filters used to process Doppler signals. Two basic systems are considered, differing only in the type of phase sensitive detector used. The two types of phase sensitive detectors are the sinusoidal type and the sawtooth type. The sawtooth-type phase sensitive detector is shown to be superior in several respects. The sawtooth-type detector is supenor with respect to noise rejection, acquisition time and system design considerations. A phase-locked loop system using the sawtooth-type phase sensitive detector is shown to meet the requirements for a typical situation.

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Aerospace and Navigational Electronics, IEEE Transactions on  (Volume:ANE-11 ,  Issue: 4 )