A Background Spread-Spectrum Radio Frequency Nonlinear Parameter Measurement Technique
| Autor: | Lawrence E. Larson, Adam R. Wichman |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Physics
Amplifier Acoustics 020208 electrical & electronic engineering Bandwidth (signal processing) 020206 networking & telecommunications 02 engineering and technology Spread spectrum Signal level Nonlinear system Amplitude Signal Processing 0202 electrical engineering electronic engineering information engineering Baseband Electrical and Electronic Engineering Intermodulation |
| Zdroj: | IEEE Transactions on Signal Processing. 66:4516-4526 |
| ISSN: | 1941-0476 1053-587X |
| Popis: | We report a new correlation-based direct sequence spread-spectrum technique that estimates low-pass-equivalent Volterra coefficients for weakly nonlinear RF systems. The methodology provides robust coefficient estimates at test signal amplitudes well below the operating signal level during normal system operation, demonstrating that the technique can be used for “background” nonlinearity measurement. We demonstrate the methodology by measuring third-order Volterra kernels for a power amplifier chain operated in compression with a 10 MHz bandwidth signal at 1960 MHz. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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