About this Dataset

Correlation-Matrix Approaches For Testing Wireless Devices In Reverberation Chambers

The data correspond to the paper Practical Correlation-Matrix Approaches for Standardized Testing of Wireless Devices in Reverberation Chambers. Abstract: We extend the autocorrelation-based approaches currently used in standards to full correlation matrix-based approaches in order to identify correlation between both spatially adjacent and non-adjacent samples in reverberation-chamber measurements. We employ a scalar metric that allows users to identify the number of effectively uncorrelated samples in new types of stirring sequences. To make these approaches practical and enhance their accuracy, we implement a thresholding technique that retains correlation related to important aspects of chamber configuration such as loading and undermoded conditions. We develop a method to propagate uncertainty in the complex correlation coefficients through to the number of effective samples for a given reverberation-chamber set-up by use of a bootstrap technique that is accurate even for highly skewed distributions of correlation coefficients. We further apply this method in a sensitivity studyregarding the choice threshold value. Agreement with existing approaches in determining the number of effectively uncorrelated samples is presented for a measurement example where spatially adjacent samples are utilized. Examples are then illustrated for non-spatially-adjacent correlated samples at microwave and millimeter-wave frequencies.
Organization: Department of Commerce
Last updated: 2025-09-30T05:15:24.576949
Tags: cellular-device-measurements-metrology-for-wireless-systems-millimeter-wave-metrology-millimete

Tables

Figure 2a

@usgov.doc_gov_correlation_matrix_approaches_for_testing_wire_49178c13.figure_2a

6.44 kB
65 rows
5 columns

CREATE TABLE figure_2a (
  "offset" BIGINT,
  "r_lim" DOUBLE,
  "n_700_mhz" DOUBLE  -- 700 MHz,
  "n_1800_mhz" DOUBLE  -- 1800 MHz,
  "n_2200_mhz" DOUBLE  -- 2200 MHz
);

Figure 2b

@usgov.doc_gov_correlation_matrix_approaches_for_testing_wire_49178c13.figure_2b

3.25 kB
65 rows
2 columns

CREATE TABLE figure_2b (
  "offset" BIGINT,
  "meas1" DOUBLE
);