second_filter_lotek

This function takes a Lotek detection dataframe generated from the add_fish()
function and filters it a second time to remove any remaining multipath
detections, and then check the remaining detections by comparing the time
between detections, for a rolling window of 4 detections to ensure it is less
16.6x the stated pulse rate interval. It additionally checks that all
detections within the window occur within 20% of the pulse rate interval of
the other detections and that the standard deviation of pulse rate intervals
is less than 0.025. Called by second_filter().

Filtering of raw acoustic telemetry transmissions
from three acoustic telemetry companies (ATS, Lotek, Teknologic). The
filtering steps check for false positives caused by reflected transmissions
from surfaces and false pings from other noise generating equipment. The
filter is unique for each technology type. The package was written in
concert with the Interagency Telemetry Advisory Group (iTAG) and makes use
of the JSATS California Fish Tracking Database:
<https://oceanview.pfeg.noaa.gov/CalFishTrack/>.

Taylor Spaulding

filteRjsats

Filter Raw JSATS Acoustic Telemetry Files from Lotek, ATS,
Teknologic

Arnold Ammann

Travis Hinkelman

second_filter_lotek function

<dl><dt>fish_file</dt>
<dd>a dataframe of detections retrieved from add_fish()</dd></dl>

Arguments

Four Hit Filter for Lotek Detections — second_filter_lotek

<dl>

<dt>fish_file</dt>
<dd>a dataframe of detections retrieved from add_fish()</dd>

</dl>

second_filter_lotek: Four Hit Filter for Lotek Detections

Description

Usage

Value

Arguments

Examples