H - Electricity – 03 – F
Patent
H - Electricity
03
F
H03F 1/32 (2006.01)
Patent
CA 2373777
A transmission system (14) broadcasts a signal, having (14), a power amplifier (20) that causes non-linear distortion. A pre-amp component, such as a band-pass filter (32), causes linear distortion. A high power filter (38) is located downstream of the power amplifier (20) and causes linear distortion. A linear equalizer (42) compensates for the distortion caused by the high power filter (38). A non-linear corrector (44) compensates for the distortion caused by the power amplifier (20), and is located downstream of the linear equalizer (42). A linear equalizer (46) compensates for the distortion caused by the pre-amp component (e.g., 32). The compensating components (42-46) are located upstream of the distorting, pre-amp component (e.g., 32).
La présente invention concerne un système de transmission (14) émettant un signal. Ce système comprend un amplificateur de puissance (20) qui engendre une distorsion non linéaire. Un composant préamplificateur, tel qu'un filtre passe-bande (32), engendre une distorsion linéaire. Un filtre haute puissance (38) est situé en aval de l'amplificateur de puissance (20) et engendre une distorsion linéaire. Un égaliseur linéaire (42) compense la distorsion engendrée par le filtre haute puissance (38). Un correcteur non linéaire (44) compense la distorsion engendrée par l'amplificateur de puissance (20) et est situé en aval de l'égaliseur linéaire (42). Un égaliseur linéaire (46) compense la distorsion engendrée par le composant préamplificateur (32 par ex.). Les composants de compensation (42-46) sont situés en amont du composant préamplificateur engendrant une distorsion (32 par ex.).
Duello Wayne
Plonka Robert
Twitchell Edwin Ray
Harris Corporation
Oldham Edward H.
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