Reference Measurements of Error Vector Magnitude

Description

The experiment here was to demonstrate that we can reliably measure the Reference Waveforms designed in the IEEE P1765 proposed standard and calculate EVM along with the associated uncertainties. The measurements were performed using NIST's calibrated sampling oscilloscope and were traceable to the primary standards.We have uploaded the following two datasets. (1) Table 3 contains the EVM values (in %) for the Reference Waveforms 1--7 after performing the uncertainty analyses. The Monte Carlo means are also compared with the ideal values from the calculations in the IEEE P1765 standard.(2) Figure 3 shows the complete EVM distribution upon performing uncertainty analysis for Reference Waveform 3 as an example. Each of the entries in Table 3 is associated with an EVM distribution similar to that shown in Fig. 3.

Resources

Name Format Description Link
47 X axis has the EVM values in %Y axis has the number of occurrences for a specific histogram bin after running 1000 Monte Carlo simulations https://data.nist.gov/od/ds/mds2-2563/Figure3_ReferenceWaveform3_histogram.txt
47 This file contains the nominal EVM value, Monte Carlo mean and 95% confidence intervals after running 1000 Monte Carlo simulations. https://data.nist.gov/od/ds/mds2-2563/Figure3_ReferenceWaveform3_MonteCarlo.txt
53 Since EVM distributions (see Figure 3 for example) for all 7 waveforms cannot be included in the paper (length limited to 3 pages), we have included the nominal EVM, Monte Carlo means, and 95% confidence intervals for all the waveforms here after performing uncertainty analysis. The Monte Carlo means can also be compared to the expected EVM values in the Table. https://data.nist.gov/od/ds/mds2-2563/Table3_evm_values.xlsx

Tags

  • quadrature-amplitude-modulation
  • digitally-modulated-signals
  • measurement-uncertainty
  • uncertainty-analysis
  • wireless-communication
  • error-vector-magnitude

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