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Radar System Engineering

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h<br />

Video<br />

I<br />

1<br />

I<br />

Angle marks<br />

RADAR RELAY [SEC, 17.5<br />

signalsI y--<br />

Mixer<br />

Signal Pulse Ceder pJ<br />

generator A generator B Fig. 17.2<br />

Video ~<br />

J switch I<br />

c I_— —-J<br />

E<br />

r— 1, —-<br />

, Flipflop f<br />

l_____J<br />

To mcdulator<br />

Video to indicators<br />

Indicator trigger<br />

[;;<br />

H<br />

‘Tll=~[:;~;:.<br />

1( ‘1=~[1<br />

l-h<br />

Pulse<br />

decoder<br />

Scaling Squarewave Audio<br />

I circuit J generator K filter L<br />

~<br />

Amplifier<br />

Wave form at A<br />

f =PRF<br />

Wave form at B and I<br />

Wave form at J<br />

f=lzo Cps<br />

Wave form at K<br />

Wave form at L<br />

f’=w Cps<br />

Wave form at<br />

B<br />

Slow time scale<br />

I I I I I I I I I I I I I I I I I I I I I<br />

r<br />

I<br />

Expanded time scafu<br />

C and H<br />

D and I<br />

E and M<br />

F and G<br />

— Video —<br />

FIG. 17.4.—Simple incremental-angle synchronization.

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