hht (version 2.1.1)

HilbertEnvelope: Instantaneous amplitude

Description

Generates the instantaneous amplitude of an analytic signal given by HilbertTransform

Usage

HilbertEnvelope(asig)

Value

• envelope
  Instantaneous amplitude

See Also

HilbertTransform, InstantaneousFrequency

Examples

tt <- seq(1000) * 0.01
sig <- sin(4 * pi * tt) + sin(3.4 * pi * tt)
asig <- HilbertTransform(sig)
env <- HilbertEnvelope(asig)
plot(tt, sig, type = "l")
lines(tt, env, col = "red")
lines(tt, -env, col = "red")