edgedir1D: Calculates the edge points of an ecousounder based on the...

In arnejohannesholmin/sonR: Library for reading, processing and converting sonar data to the TSD format

Calculates the edge points of an ecousounder based on the CTD-data, creating circular volume elements centered around the vertical upwards direction (note that the resulting data needs to be rotated back to the direction of the beams outside of this function). !!!Only one time step is treated!!!!

Description

Calculates the edge points of an ecousounder based on the CTD-data, creating circular volume elements centered around the vertical upwards direction (note that the resulting data needs to be rotated back to the direction of the beams outside of this function). !!!Only one time step is treated!!!!

Usage

edgedir1D(
  data,
  esnm = NULL,
  seabed = -12000,
  rot = 1,
  compensation = c("pitch", "roll"),
  ideal = TRUE,
  ...
)

Arguments

data	is the list of TSD inputs as returned from read.TSD (must contain ""dira" and "dire", and CTD-data).
esnm	is the name of the acoustical instrument, given as a four character string. See sonR_implemented() for the implemented systems. May be given in 'data', and in lower case.
seabed	is the z-coordinate of the sea bed, usually provided by echo sounder data. Soundbeams reflected from the sea bed or the surface are reflected at the incidence angle.
rot	is 1 if simple rotation using cosine and sine is to be used, and 2 if the function rotate() is to be used in the rotation. Times for the different methods (tested on MacBook Pro dual 2.8 GHz, 2010-02-09, with other applications running):
compensation	is a vector of string giving which rotation values that are compensated for in the sonar. Only c("pitch","roll") is available for the current version. Used in soundbeam.TSD.
ideal	is TRUE to represent the simple case where the speed of sound 'data$asps' is invariant of depth.
...	Used for robutness.

arnejohannesholmin/sonR documentation built on April 14, 2024, 11:39 p.m.