What noise floor is used during processing in SeaReport?
The noise floor, together with returned signal strength, is used to calculate SNR. The instrument noise floor is unique for each instrument and deployment. During processing in SeaReport, the noise floor values used are either those presented in the table below or the lowest reading of signal strength in the data set if it is lower than the table value.
|
Instrument frequency |
Noise floor (counts) |
|
2 MHz |
20 |
|
1 MHz |
20 |
|
600 kHz |
30 |
|
400 kHz |
30 |
|
470 kHz |
50 |
|
190 kHz |
50 |
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