Примеры использования Echoview на Английском языке и их переводы на Русский язык
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Ev file extension Echoview File.
Echoview template for automatic data processing.
For example, we could create one Echoview. EV file per transect.
The Echoview template default settings have a -20 to 20 dB difference range.
The detected swarms are allocated to the Echoview region class called'aggregation.
This Echoview template was developed during SG-ASAM17 for swarm-based analysis.
We are going to add the files in the rawFiles object to the fisheries Echoview fileset.
Start Echoview remotely Here, we establish a link between R and Echoview.
If you cannot get access to the Templates folder,you will have to open the Echoview program first.
Save the Echoview File In order to retain the link to the calibration file, we now save the Echoview file.
Place the‘CCAMLR_SWARM. EV' file in C:\Program Files\Echoview Software\Echoview 8.0\Echoview\Templates.
The Saga Sea example data has two transects,so in the example below, we will create two Echoview. EV files.
We run the SHAPES algorithm on the Echoview virtual acoustic variable called'120 Dilation filter 3x3.
Identify set of. csv files 2.8 After correcting the. ev files for issues identified above(paragraph 2.7),the Subgroup exported a new set of. csv files from Echoview.
Calibration file directory andfilename Next, we specify the Echoview calibration(. ECS) file directory and location.
Creating multiple Echoview(. EV) files using a loop We can also use EchoviewR within a loop to create multiple Echoview files.
Load calibration file Next, we add the calibration file to the Echoview file using the EchoviewR function EVAddCalibrationFile.
Calibration of the echosounder system during BROKE-West revealed transducer gain(TS gain)differences of up to~0.5 dB when using Simrad versus Echoview processing routines.
Automation of data processing 3.17 Dr Cox presented EchoviewR,an R software package used to help automate acoustic data processing using Echoview.
The Echoview swarm template is developed to pursue an alternative approach to the CCAMLR procedure for biomass estimation from transect line acoustic surveys.
Data therefore have to be logged andpost-processed in software such as Echoview before the calibration coefficients can be estimated.
Automated seabed detection 3.11 The Subgroup agreed to use the 38 kHz frequency for seabed detection and to use the‘best bottom candidate line pick' algorithm implemented in Echoview.
Consider, and develop if required, a standard protocol(templates)for packages such as Echoview and LSSS are there open-source options?
The Subgroup agreed that EchoviewR was a powerful tool that could be used with Echoview to help automate processing of large datasets and to conduct sensitivity analyses.
This may have financial implications for the Secretariat, but SG-ASAM noted that read-only(demonstration)versions of software were freely available from some manufacturers e.g. SonarData Echoview.
Gov. au 19 May 2017 Here I provide an example of how to use EchoviewR to control Echoview from R and to detect swarms and export the resulting echo integration.
Load EchoviewR library into R Now we have specified the locations of the ES60.RAW data files, the Echoview format calibration file, and the Echoview template file we can load the EchoviewR package version 1.0 into the R workspace.
SG-ASAM had also tested, andagreed to, the use of an EchoView template for automated data processing of acoustic data collected on fishing vessels to be used during the method development.
The‘maximum Sv line pick' in Echoview v5.4(Myriax, Australia) was used to find the seabed boundary(Figure E1, seabed line) and offset a second line by 10 m from the seabed boundary line Figure E1, offset seabed line.
The Subgroup also requested that the Secretariat maintain the Echoview template in a version-controlled information management system to ensure transparency in the future use and modification of the template.