as.echosounder | R Documentation |
Coerces a dataset into a echosounder dataset.
as.echosounder( time, depth, a, src = "", sourceLevel = 220, receiverSensitivity = -55.4, transmitPower = 0, pulseDuration = 400, beamwidthX = 6.5, beamwidthY = 6.5, frequency = 41800, correction = 0 )
time |
times of pings |
depth |
depths of samples within pings |
a |
matrix of amplitudes |
src |
optional string indicating data source |
sourceLevel |
source level, in dB (uPa at 1m), denoted |
receiverSensitivity |
receiver sensitivity of the main element, in
dB(counts/uPa), denoted |
transmitPower |
transmit power reduction factor, in dB, denoted
|
pulseDuration |
duration of transmitted pulse in us |
beamwidthX |
x-axis -3dB one-way beamwidth in deg, denoted |
beamwidthY |
y-axis -3dB one-way beamwidth in deg, denoted |
frequency |
transducer frequency in Hz, denoted |
correction |
user-defined calibration correction in dB, denoted
|
Creates an echosounder file. The defaults for e.g. transmitPower
are taken from the echosounder
dataset, and they are unlikely to make
sense generally.
An echosounder object.
Dan Kelley
Other things related to echosounder data:
[[,echosounder-method
,
[[<-,echosounder-method
,
echosounder-class
,
echosounder
,
findBottom()
,
plot,echosounder-method
,
read.echosounder()
,
subset,echosounder-method
,
summary,echosounder-method
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