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Validate Signal Power Ratios Using MUSIC Algorithm

Source: R/SeaSondeRCS_MUSIC.R
seasonder_MUSICCheckSignalPowers.Rd

This function implements the P2 test for solutions derived using the MUSIC algorithm. The test evaluates the ratio between the largest and smallest signal powers for dual-bearing solutions.

Usage

seasonder_MUSICCheckSignalPowers(seasonder_cs_object)

Arguments

seasonder_cs_object

A SeaSondeRCS object containing the MUSIC solutions and related data.

Value

The updated SeaSondeRCS object with the following modifications:

  • A new column signal_power_ratio in the MUSIC data.

  • A logical column P2_check indicating whether each solution passes the P2 test.

  • Updated retained_solution values for solutions that fail the test.

Details

The P2 test is based on the ratio of the largest signal power (\(P_{max}\)) to the smallest signal power (\(P_{min}\)):

$$Ratio = \frac{P_{max}}{P_{min}}$$

This ratio is compared to a threshold defined in the MUSIC parameters. Only solutions that meet the following criteria are retained:

  • The solution has two bearings.

  • The signal power ratio is below the threshold.

Solutions failing this test are marked as "single."

See also

seasonder_getSeaSondeRCS_MUSIC, seasonder_setSeaSondeRCS_MUSIC