Lookup Table Adaptive Predistortion TRIZ Cases
- Canonical Multi-Band DPD with Reduced-Dimension LUTs
A canonical-form multi-band DPD cuts LUT memory and polynomial compute growth while maintaining effective non-linearity compensation.
- External DPD Coefficient Calibration for PA Nonlinearity Compensation
Offline external calibration computes and stores DPD coefficients across power, frequency, and temperature to linearize PA output with less transmitter complexity.
- Memoryless Digital Pre-Distortion LUT Training for PA Linearization
Direct inverse-gain LUT updates linearize power amplifier output while avoiding least-squares complexity in digital pre-distortion.
- Multiband Digital Predistortion for HPA Spectral Regrowth Control
Segmenting broadband signals into sub-bands lets mDPD curb HPA spectral regrowth and in-band distortion with lower sampling demands.
- Adaptive Power Amplifier Voltage Control in Low-Orbit Satellite Terminals
Orbit-aware voltage updates cut terminal power amplifier consumption while preserving linearity and communication performance.
- Multiband Digital Predistortion for Broadband HPA Linearization
By splitting broadband transmit signals into sub-bands, mDPD compensates HPA in-band and cross-band distortion with lower sampling-rate demands.
- Asymmetric LUT Digital Predistortion for Wideband Linearity
Asymmetric LUTs addressed by signed real samples let wideband DPD cancel even-order nonlinearity and improve transmitter SFDR.