second_filter_tekno

This function takes a Teknologic 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 each detection to ensure it is less 4x the stated pulse rate
interval. It additionally checks that all detections have a frequency
between 390 and 445 kHz and that the frequency of all detections are within
55kHz of each other. Called by second_filter_2h4h().

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_tekno function

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

Arguments

Two Hit Filter for Teknologic Detections — second_filter_tekno

<dl>

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

</dl>

second_filter_tekno: Two Hit Filter for Teknologic Detections

Description

Usage

Value

Arguments

Examples