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Results, observations and explanation

In the ? ?spreadsheet we have made various calculations in order to understand the results. The following are a few observations and their explanation.

1. Amount of NaNs (in error distance) for multilateration and trilateration

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  • There were a total of 67 NaN values for multilateration.
  • Now only 14 NaN values remain for multilateration: 11 are common with trilateration and 3 are unique.
  • 39 NaNs removed by keeping number of estimates, n = 10.
  • 14 NaNs removed by keeping number of estimates, n = 4.

This means these NaNs were removed by taking only the best possible landmark estimates for each target and/or by eliminating the "bad pairs".

A sample of "bad pairs" from target "132.248.120.214" is below. Each line contains four values separated by white-space. First line contains: target-lat target-long id rtt. All other lines contain: landmark-lat landmark-long rtt id.

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