Frequency Offset Compensation (Channel Sounding)
When is selected, the channel sounding software will correct the acquired time data for estimated frequency error before calculating the channel response.
Enabled (selected)
determines how the frequency error is estimated. There are three selections:
- each channel's frequency error is estimated and corrected separate from the other channels
- each channel's time data is corrected by the frequency error estimated on the reference channel.
- each channel's time data is corrected by the average of the frequency error estimates of all channels.
Measurement Channel
specifies how much averaging to perform before calculating frequency error. Increasing this value reduces the frequency lock range, but improves estimation in low SNR Signal-to-Noise Ratio situations. If the channel sounding software is having trouble locking to the sounding signal (impulse response is not stable) and increasing the Number of Repeats does not help (or is not desired), increasing Segments to Average greater than 1 may help the synchronization.
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See Also
