TH19761EX - Forward-feed amplifiers with sweep-frequency pilot signals. - Google Patents

Abstract

The invention is briefly described as a forward-feed amplification circuit network (200) that uses frequency-swept pilot signal (212) in order to reduce the distortion produced by (202) A swept pilot signal (212) is produced as an example by the generator. Variable frequencies (213) are fed into the input path. The signal of the amplifier's input signal (215), after which distortion offsetting is used to produce an amplified exit signal (217), approximately independent of both the pilot signal (212) and the distortion signal produced After that, the amplified exit signal (217) was detected by the detector circuit (215), which was phase-locked with The circuit generates variable frequency (213) via the signal (218) in order to find the remaining average pilot signal power. Is inside the amplified exit signal (317) in response to Respond to detection The amplifiers network characteristics were optimized. In order to reduce the number of pilot signals (212) at the signal exit. Of amplifiers (217)

Claims (1)

1. Forward-feed amplifiers for reducing distortion produced by power amplifiers. Containing A tool for producing frequency-swept pilot signals as Function of the reference signal Which the pilot signal was swept away Frequency is fed into the input path of the input signal of the power amplifier circuit, which is linked to the power amplifier. For producing an amplified exit signal that is independent enough Estimated from pilot signal and power amplifier distortion. The tools are linked to the cyclic tool for that