Linearizing Nonlinear Power-Amplifiers Post-Distortion Using Cubic Spline Coefficients
2024 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)(2024)
摘要
Efficient use of the limited bandwidth available is a persistent struggle with communication systems. The ever-increasing demand for spectral efficiency has put more stress on linearity of power amplifiers, and as such a linearization technique is often required. An often-utilized technique is Digital Pre-Distortion (DPD), which modifies the waveform prior to input to the amplifier in order to obtain a more linear output. Another possible avenue is Digital Post-Distortion (DPoD), in which the output waveform is corrected at a receiver to remove distortion effects.
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