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Null-zone envelope detection in binary systems

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2 Author(s)
Metzner, J. J. ; New York University, New York, N. Y. ; Morgan, K. C.

The effects of applying the null-zone decision mechanism to two types of envelope-detection systems are investigated, and comparisons are made with previous results for synchronous-detection systems. It is demonstrated conclusively that, just as for the synchronous system, null-zone reception offers a means of improving the information rate of a unidirectional system. Moreover, the relative behavior is about the same in all three cases, except that the asymmetry of the on-off system may present some additional difficulties.

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American Institute of Electrical Engineers, Part I: Communication and Electronics, Transactions of the  (Volume:82 ,  Issue: 2 )