Cross-Correlation for Measuring Error Vector Magnitude

Evolving wireless standards and higher-order modulation schemes make capturing reliable vector magnitude (EVM) measurements a real challenge—and these valuable measurements are the best way to quantify the accuracy of RF transmitters used in critical applications like wireless connectivity, radio astronomy, acoustics, geophysics, and 5G. Achieving measurement accuracy and future-proofing your test systems to meet stringent requirements is vital to keep pace with innovation.

NI’s cross-correlation, fast cross-correlation, and industry-leading EVM performance solutions help minimize validation timelines while preserving EVM measurement quality. Incorporating NI’s third-generation VST, the PXIe-5842, into test systems brings additional benefits into EVM measurements over many different bandwidths, standards, and other conditions—with improvements in the lab of up to 3 dB over single-channel performance with one VST.

Leverage NI’s cross-correlation capabilities to ensure best-in-class measuring accuracy and stay ahead of evolving standards.