Finds prominent minima in the second derivative outside the
systolic onset window (native peak detector, module 20).
Usage
morie_dsp_dicrotic_notch(pulse, fs = 125)
Arguments
- pulse
Numeric pulse vector.
- fs
Sampling frequency (Hz). Default 125.
Value
Integer vector of notch indices.
References
Rangayyan & Krishnan (2015), Ch. 4, sec. 4.8.
Examples
t <- seq(0, 1, length.out = 125)
pulse <- sin(pi * t)^2 + 0.15 * sin(3 * pi * t)^2
str(morie_dsp_dicrotic_notch(pulse, fs = 125), max.level = 1)
#> int [1:2] 62 102
