Displaying 1 result from an estimated 1 matches for "aliasfreqin1msec".
2006 Mar 13
1
Newbie error or bug?
...cript that a) plots 1msec worth of a
5.5KHz sin wave b) plots 1msec of the resulting 2.5KHz alias and c)
plots the 8 sampling points on the 5.5KHz source wave. I think I have
found a bug. The script is as follows:
#truesamplingfreq <- 1000*5.5
freqin1msec = 5.5
#aliassamplingfreq <- 1000*2.5
aliasfreqin1msec = 2.5
drawingpoints = 10000
time = (0:drawingpoints)/drawingpoints
signal = sin(freqin1msec*2*pi*(time))
alias = -sin(aliasfreqin1msec*2*pi*(time))
undersamplinginterval = max(time)/8
seq (0, max(time), by=undersamplinginterval) -> undersamplingtimes
undersampled = sin(freqin1msec*2*pi*under...