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phase-unwrap
Advanced tools
1D phase unwrapping
var ndarray = require("ndarray")
var unwrap = require("phase-unwrap")
var plot = require("plotter").plot
//Create a signal
var x = ndarray.zeros([100])
require("ndarray-fill")(x, function(i) {
return (0.25 * i) % (2.0 * Math.PI)
})
//Plot input signal
plot({
data: Array.prototype.slice.call(x.data),
filename: "input.svg"
})
//Unwrap
unwrap(x)
//Plot unwrapped signal
plot({
data: Array.prototype.slice.call(x.data),
filename: "unwrapped.svg"
})
And here are the results:
npm install phase-unwrap
require("phase-unwrap")(signal)Unwraps the phase angle of a signal whose values are between 0 and 2pi to a continuous signal.
signal is a 1D ndarray of valuesReturns An signal. Note that the unwrapping modifies signal.
(c) 2013 Mikola Lysenko. MIT License
FAQs
Phase unwrapping for ndarrays
We found that phase-unwrap demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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