MX280001A Vision™ Remote Spectrum Monitor Software : TDoA Locate (Option 401) : Using TDoA : TDoA and IQ Results
 
TDoA and IQ Results
The TDoA and IQ windows are shown in Figure: Mobile Tracker.
TDoA and IQ Windows
1. RF Sweep
2. IQ Signal Correlation
3. Averaging Count
4. Average Time
5. Previous Time-to-Measurement.
6. Total Time
RF Sweep
The RF sweep trace from each Spectrum Analyzer.
IQ Signal Correlation
IQ signal correlation for each set of spectrum analyzers. The prominence of the peak above the baseline is a good indication of the quality of a particular measurement. Top chart is a graph of the correlation between Spectrum Analyzers 1 and 2. Middle chart is for Spectrum Analyzers 1 and 3. Bottom chart is for Spectrum Analyzers 2 and 3.
Average Count
Due to the uncertainty in each position estimate, several sequential measurements and average the results are performed. This is the number of measurements in the current result.
Average Time
The average time for each IQ capture and position calculation.
Previous Time-to-Measurement
The time the most recent measurement took. If this number gets very large, one of the spectrum analyzers might be off-line.
Total Time
The total time taken for the set of measurements in the current result.