R&S®FS-K130PC Distortion Analysis Software

Amplifier modeling and linearization

  • Overview

Key Facts

Measurement of the distortion behavior of amplifiers, mixers and transposers and also direct control of the required measuring instruments, such as signal generators and signal analyzers, via IEC/IEEE bus, LAN or USB.

Down to Key Facts

Brief Description

The R&S®FS-K130PC distortion analysis software measures and models the linear and nonlinear distortions of amplifiers, mixers and baseband components. This simplifies and accelerates the development of linearized components, such as power amplifiers.

Features & Benefits

  • Flexible display and selection of measurement results in configurable windows
  • Easy to operate; all operating steps shown in block diagram style
  • Integrated control of generators and analyzers via IEC/IEEE bus, LAN or USB

Key Facts

  • Measurement of the distortion behavior of amplifiers, mixers and transposers and also direct control of the required measuring instruments, such as signal generators and signal analyzers, via IEC/IEEE bus, LAN or USB
  • Calculation of the coefficients of a distortion model for DUTs with and without memory in accordance with the different selectable models (polynomial or VOLTERRA)
  • Calculation of the coefficients for predistortion
  • Verification of the spectral regrowth improvement achieved

Brief Description

The R&S®FS-K130PC distortion analysis software measures and models the linear and nonlinear distortions of amplifiers, mixers and baseband components. This simplifies and accelerates the development of linearized components, such as power amplifiers.

Features & Benefits

  • Flexible configuration and simple operation

    • Flexible display and selection of measurement results in configurable windows
    • Easy to operate; all operating steps shown in block diagram style
    • Integrated control of generators and analyzers via IEC/IEEE bus, LAN or USB
    • Automatic level setting to the desired output power
  • Applicable to a wide variety of signal types

      • Internally generated measurement signals:
        • band-limited noise with adjustable crest factor
        • dual tone signal with adjustable tone spacing
      • Signals from a file with I/Q data in various data formats such as binary, ASCII, CSV, MATLAB®
      • All repetitive signals that can be recorded in a reference measurement and then used as a reference signal
      • Measurement bandwidths up to 40 MHz (R&S®FSV family) and 120 MHz (R&S®FSQ family)
  • Flexible, configurable display and evaluation options

    • AM/AM and AM/φM conversion curves
    • Probability distribution function (PDF) and complementary cumulative distribution function (CCDF) of reference and measurement signals; graphical comparison of both functions provides a quick overview of the compression
    • Spectrum and spectral regrowth
    • Power level dependence of gain and phase response
    • Constellation diagram and EVM
    • Impulse response
    • Windows and display modes can be combined as needed
  • State-of-the-art algorithms for distortion modeling

    • Calculation of DUT models on the basis of VOLTERRA and polynomials
    • Export of calculated distortion and predistortion models in MATLAB® format
    • Verification of modeling result and determination of achieved improvement
    • Simulation of the influence of characteristics
  • Numerous import/export functions

    • Export of synchronized, sample-precise I/Q data of both the reference signal and the measurement signal for further evaluation, e.g. in MATLAB®
    • Export of measurement results
    • Export of calculated distortion model
    • Import of reference signal and measurement signal from files for subsequent offline processing
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