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FM Star-Lock System Using Mask with Spiral Sectors

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1 Author(s)
Sandeman, E.K. ; Guided Weapons Division, English Electric Aviation, Ltd., British Aircraft Corporation, Ltd., Luton Airport, Bedfordshire,England.

This system is identical with the FM system using a linear mask except that the sectors of the mask are bounded by spirals. The value of ¿ = (r/R)(S/N)-1/2 is derived for the case of spiral masks of three kinds.

Published in:

Aerospace and Navigational Electronics, IRE Transactions on  (Volume:ANE-9 ,  Issue: 1 )