Frohro at 21:38, 5 April 2017

2017-04-05T21:38:47Z

← Older revision		Revision as of 14:38, 5 April 2017
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	legend('boxoff')		legend('boxoff')
	</nowiki>		</nowiki>
			[[File:tayloe_mixer.png\|800px]]

Frohro: Created page with "Here is a MATLAB/octave simulation of a Tayloe Sampling Mixer. It is useful to understand how the mixer works. % This is to demonstrate the Tayloe Mixer. clear all..."

2017-04-05T21:30:17Z

Created page with "Here is a MATLAB/octave simulation of a Tayloe Sampling Mixer. It is useful to understand how the mixer works. <nowiki> % This is to demonstrate the Tayloe Mixer. clear all..."

New page

Here is a MATLAB/octave simulation of a Tayloe Sampling Mixer. It is useful to understand how the mixer works.
<nowiki>
% This is to demonstrate the Tayloe Mixer.

clear all;
clf;

f0 = 60;
theta = pi/6; % Note: The phase doesn't match, except for 0 and pi. Direct
% conversion doesn't give the right sign on the imaginary part
f1 = 65;

T=0.0002;
N=1000;
t=0:T:(N-1)*T;
vin = cos(2*pi*f0*t+theta);

Ts = 1/4/f1;
t1 = 0:4*Ts:(N-1)*T;
vo1 = cos(2*pi*f0*t1+theta);

t2 = Ts:4*Ts:(N-1)*T+Ts;
vo2 = cos(2*pi*f0*t2+theta);

t3 = 2*Ts:4*Ts:(N-1)*T+2*Ts;
vo3 = cos(2*pi*f0*t3+theta);

t4 = 3*Ts:4*Ts:(N-1)*T+3*Ts;
vo4 = cos(2*pi*f0*t4+theta);

tI = 0:2*Ts:(N-1)*T;
voI = vo1-vo3; % Note: This is not quite right, because vo3 changes half a
% 2*Ts after vo1 does. The same thing happens with voQ. It
% looks pretty good for fl (and f0) high (>50 or so).
voQ = vo4-vo2;

plot(t,vin,'g-',t2,voI,'bo',t3,voQ,'r*',t,2*cos(2*pi*(f0-f1)*(t)+theta),'b-',t
,2*sin(2*pi*(f0-f1)*(t)+theta),'r-')
xlabel('Time (s)')
ylabel('Voltage (V)')
title('Tayloe Sampling Mixer Demonstration with Differential Output')
legend('cos(2 \pif_0t+\theta)','I Samples','Q Samples','2cos(2 \pi(f_0-f_1)t+\theta)',
'2sin(2 \pi(f_0-f_1)t+\theta)','Location','north')
legend('boxoff')
</nowiki>

Octave Simulation of a Tayloe Sampling Mixer - Revision history

Frohro at 21:38, 5 April 2017

Frohro: Created page with "Here is a MATLAB/octave simulation of a Tayloe Sampling Mixer. It is useful to understand how the mixer works. % This is to demonstrate the Tayloe Mixer. clear all..."