Measurement

Communications engineers use different tools to evaluate how well the transmitted data was received. Bit error rate (BER) and modulation error ratio (MER) are common metrics for this job.

The following list illustrates the types of measurements that can be performed with Modulation Toolkit VIs.

• Calculate Bit Error Rate (BER) After Trigger:
  • BER
  • Accumulated BER
  • Trigger Found Index
• Digital Demodulation:
  • QAM, ASK, PAM, PSK: Frequency Offset, Frequency Drift, Phase Offset
  • FSK: Frequency Offset, Frequency Drift, Deviation Error, FSK Error
  • MSK: Frequency Offset, Frequency Drift
• Measure Quadrature Impairments:
  • I/Q Gain Imbalance, Quadrature Skew, Magnitude Error, EVM, Phase Error, MER
  • DC Offsets: I, Q, Origin
• Measure Rho (ρ)
• Measure Burst Timing
  • Amplitude Droop, Crest Factor