Pulse or digital communications – Repeaters – Testing
Patent
1989-03-16
1990-11-20
Safourek, Benedict V.
Pulse or digital communications
Repeaters
Testing
375100, 455139, H03H 730
Patent
active
049724347
ABSTRACT:
A receiver for a space diversity radio transmission system, the receiver including a diversity combiner (CD) and a diversity control circuit (7) which is responsive, inter alia, to a distortion value (F). If the receiver includes a self-adaptive equalizer (6) in the transmission path of the composite output, the control circuit may calculate the distortion value from the coefficients (ai, bi) used to control the filter portion (EG) of the equalizer. If the combiner is also responsive to an insufficient power value (G), the distortion value may be added to the insufficient power value in order to obtain a single control magnitude (8) which is used for controlling the diversity combiner in a manner that avoids any abrupt transition between the low power mode and the low distortion mode.
REFERENCES:
patent: 4079318 (1978-03-01), Kinoshita
patent: 4146840 (1979-03-01), McRae
patent: 4271525 (1981-06-01), Watanabe
patent: 4281411 (1981-07-01), Bonn
patent: 4326294 (1983-04-01), Okamoto et al.
patent: 4593413 (1986-04-01), Ozaki
"Auto-Adaptivite dans les Faisceaux Hertziens Numeriques", L'Onde Electrique, Mars 1986, vol. 66-N"2.
Le Polozec Xavier
Pujol Dominique
ALCATEL N.V.
Bocure Tesfaldet
Safourek Benedict V.
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