Zobrazeno 1 - 3
of 3
pro vyhledávání: '"E. R. Kretzmer"'
Autor:
E. R. Kretzmer
Publikováno v:
Bell System Technical Journal. 31:751-763
Measurements have been made of some basic statistical quantities characterizing picture signals. These include various amplitude distributions, autocorrelation, and correlation among successive frames. The methods of measurement are described, and th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d7d1c6b02927f98a9225cabe364f073
https://doi.org/10.1002/j.1538-7305.1952.tb01404.x
https://doi.org/10.1002/j.1538-7305.1952.tb01404.x
Publikováno v:
Bell System Technical Journal. 45:755-758
Data communication systems in current use generally require substantially more bandwidth than the Nyquist minimum of one-half cycle per symbol. This comes about for two main reasons: first, the baseband signal spectrum has a gradual roll-off beyond t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::236f9ffb51cff3e81002e07cdf3b9796
https://doi.org/10.1002/j.1538-7305.1966.tb01057.x
https://doi.org/10.1002/j.1538-7305.1966.tb01057.x
Autor:
E. R. Kretzmer
Publikováno v:
Proceedings of the IRE. 42:391-401
This paper describes an audio-frequency oscillator using two junction transistors in push-pull Class C operation. The circuit features an over-all efficiency as high as 75 per cent, low distortion, signal-to-noise ratio better than 100 db, and a high
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a35f5cfcd54893aac576103a4fb9f30c
https://doi.org/10.1109/jrproc.1954.274675
https://doi.org/10.1109/jrproc.1954.274675