| 主权项 |
1. An amplification device using linear amplification with non-linear components (LINC), the amplification device comprising:
a signal generator configured to:
receive an input signal, andoutput a first digital signal and a second digital signal, the first digital signal and the second digital signal each being phase modulated with a constant amplitude, and the second digital signal having a phase difference from the first digital signal based on an amplitude of the input signal; a first filter configured to:
receive the first digital signal from the signal generator,pass a predetermined frequency component of the received first digital signal andoutput a first filtered signal; a first distortion compensator configured to:
receive the first filtered signal from the first filter,perform, on the first filtered signal from the first filter, a distortion compensation process for generating a first distortion compensated signal using a first distortion compensation coefficient established based on a magnitude of the output of the first filter, wherein the first distortion compensated signal compensates in advance for an amplifier created distortion, andoutput the first distortion compensated signal; a first digital to analog converter configured to convert the first distortion compensated signal into a first analog signal; a first amplifier configured to amplify the first analog signal into the first amplified analog signal; a second filter configured to:
receive the second digital signal from the signal generator,pass a predetermined frequency component of the received second digital signal, andoutput a second filtered signal; a second distortion compensator configured to:
receive the second filtered signal from the second filter,perform, on the second filtered signal from the second filter, a distortion compensation process for generating a second distortion compensated signal using a second distortion compensation coefficient established based on a magnitude of the output of the second filter, wherein the second distortion compensated signal compensates in advance for an amplifier created distortion; andoutput the second distortion compensated signal; a second digital to analog converter configured to convert the second distortion compensated signal into a second analog signal; a second amplifier configured to amplify the second analog signal into the second amplified analog signal; and a combiner configured to combine the first amplified analog signal with the second amplified analog signal into a combined output signal. |
