H - Electricity – 03 – D
Patent
H - Electricity
03
D
H03D 7/16 (2006.01) H03D 3/00 (2006.01) H03G 3/30 (2006.01) H04L 29/12 (2006.01)
Patent
CA 2297734
A wideband radio receiver provides a complex baseband signal by normalizing an IF signal using a limiting amplifier. The normalized IF signal is applied to a complex sampling circuit to provide normalized I and Q components. The limiting amplifier provides an RSSI signal representing the received signal amplitude. The RSSI signal, which is sampled at the same rate as the normalized IF signal, is combined with the normalized and Q components, to provide I and Q components of the baseband signal.
L'invention porte sur un récepteur radio à large bande produisant un signal complexe en bande de base par normalisation d'un signal FI à l'aide d'un amplificateur limiteur. Le signal FI est appliqué à un circuit complexe d'échantillonnage afin d'obtenir des composantes I et Q normalisées. L'amplificateur limiteur fournit un signal RSSI représentant l'amplitude du signal reçu. Le signal RSSI, qui est échantillonné à la même fréquence que le signal FI normalisé, est combiné aux composantes I et Q normalisées pour donner les composantes I et Q du signal en bande de base.
Bottomley Gregory E.
Dent Paul W.
Myers Richard H.
Ramesh Rajaram
Ericsson Inc.
Marks & Clerk
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