Freq.m File Reference

Go to the source code of this file.

Functions
	figure ()
	stem (freqSequence, dbmi)
	stem (freqSequence, dbm1)
	stem (freqSequence, dbm2)
	set (gca, 'YScale', 'log')
	dlmwrite ("fftoutput.txt", [freqSequence(idxLower:idxUpper).', dbm1(idxLower:idxUpper), dbm2(idxLower:idxUpper), dbmi(idxLower:idxUpper)], 'delimiter',' ', 'precision','%20.12f')

Variables
	t1 = readtable("1GHZMOSNUDTIR.txt")
	offset = 1500100
	step = 0.001
	periodNS = 1
	period = periodNS / step
	nPeriods = 100
	fLower = -200
	fUpper = 200
	time = t1.time(end) + t1.time(2) - offset*t1.time(2)
	f_s = 1/t1.time(2)
	freqSequence = - f_s/2 : 1 / (nPeriods*periodNS) : f_s/2 - 1 / (nPeriods*periodNS)
	f1 = abs( fftshift( fft( t1.n7((offset):(offset + nPeriods*period - 1))) ) )
	p1 = ( 2 * abs( f1 )^2 ) / (2*50)
	f2 = abs( fftshift( fft( t1.n16((offset):(offset + nPeriods*period - 1))) ) )
	p2 = ( f2 .* conj(f2) ) / length( f2 )
	fi = abs( fftshift( fft( t1.n9((offset):(offset + nPeriods*period - 1))) ) )
	pi = ( fi .* conj(fi) ) / length( fi )
	dbm1 = 10 * log10( p1 / (1E-3))
	dbm2 = 10 * log10( p2 / (1E-3))
	dbmi = 10 * log10( pi / (1E-3))
hold	on
hold	off

Function Documentation

dlmwrite()

dlmwrite	(	"fftoutput.txt"	,
		'delimiter'	,
		' '	,
		'precision'	,
		'%20.12f'
	)

figure()

figure

(

)

set()

set	(	gca	,
		'YScale'	,
		'log'
	)

stem() [1/3]

stem	(	freqSequence	,
		dbm1
	)

stem() [2/3]

stem	(	freqSequence	,
		dbm2
	)

stem() [3/3]

stem	(	freqSequence	,
		dbmi
	)

Variable Documentation

dbm1

dbm1 = 10 * log10( p1 / (1E-3))

Definition at line 27 of file Freq.m.

dbm2

dbm2 = 10 * log10( p2 / (1E-3))

Definition at line 28 of file Freq.m.

dbmi

dbmi = 10 * log10( pi / (1E-3))

Definition at line 29 of file Freq.m.

f1

f1 = abs( fftshift( fft( t1.n7((offset):(offset + nPeriods*period - 1))) ) )

Definition at line 13 of file Freq.m.

f2

f2 = abs( fftshift( fft( t1.n16((offset):(offset + nPeriods*period - 1))) ) )

Definition at line 19 of file Freq.m.

f_s

f_s = 1/t1.time(2)

Definition at line 11 of file Freq.m.

fi

fi = abs( fftshift( fft( t1.n9((offset):(offset + nPeriods*period - 1))) ) )

Definition at line 23 of file Freq.m.

fLower

fLower = -200

Definition at line 7 of file Freq.m.

freqSequence

freqSequence = - f_s/2 : 1 / (nPeriods*periodNS) : f_s/2 - 1 / (nPeriods*periodNS)

Definition at line 12 of file Freq.m.

fUpper

fUpper = 200

Definition at line 8 of file Freq.m.

nPeriods

nPeriods = 100

Definition at line 6 of file Freq.m.

off

hold off

Definition at line 40 of file Freq.m.

offset

offset = 1500100

Definition at line 2 of file Freq.m.

on

hold on

Definition at line 35 of file Freq.m.

p1

p1 = ( 2 * abs( f1 )^2 ) / (2*50)

Definition at line 16 of file Freq.m.

p2

p2 = ( f2 .* conj(f2) ) / length( f2 )

Definition at line 20 of file Freq.m.

period

period = periodNS / step

Definition at line 5 of file Freq.m.

periodNS

periodNS = 1

Definition at line 4 of file Freq.m.

pi

pi = ( fi .* conj(fi) ) / length( fi )

Definition at line 24 of file Freq.m.

step

step = 0.001

Definition at line 3 of file Freq.m.

t1

t1 = readtable("1GHZMOSNUDTIR.txt")

Definition at line 1 of file Freq.m.

time

time = t1.time(end) + t1.time(2) - offset*t1.time(2)

Definition at line 10 of file Freq.m.