waveformlidar (version 1.2.0)

which.half: which.half

Description

The function allows you to identify the half total energy position (time location) which can be used to calculate the height from waveform ending or waveform begining.

Usage

which.half(x, rescale = TRUE)

Arguments

x

is the waveform intensities. If you have other information, you should delete these intensites before you run this function.

rescale

is to determine whether you want to rescale the waveform intensity or not. Here we used the minimum intensity of each waveform to conduct rescaling. Default is using rescaling.

Value

return the index of half total energy position of waveform.

Examples

# NOT RUN {
data(return)
x<-return[1,]
#default
which.half(x)
#NOT USE rescale, the result will be a bit different
half_pos <- which.half(x,rescale=FALSE)
##the distnace from half position to the waveform ending is
dis_end = (wavelen(x)-half_pos)*0.15
dis_begin = half_pos*0.15 ##here 0.15 is the 1ns distance.
# }