Frequency Filter
A frequency filter can be calculated using the function
function filterFrequencies(f::MPIFile;
SNRThresh=-1,
minFreq=0, maxFreq=rxBandwidth(f),
recChannels=1:rxNumChannels(f),
sortBySNR=false,
numUsedFreqs=-1,
stepsize=1,
maxMixingOrder=-1,
sortByMixFactors=false)
Usually one will apply an SNR threshold SNRThresh > 1.5
and a minFreq
that is larger than the excitation frequencies. The frequencies are specified in Hz. Also useful is the opportunity to select specific receive channels by specifying recChannels
.
The return value of filterFrequencies
is of type Vector{Int64}
and can be directly passed to getMeasurements
, getMeasurementsFD
, and getSystemMatrix
.