SU1205268A1 - Device for summing two random pulse sequences - Google Patents

Description

one

The invention relates to a pulse technique, is intended to add random pulse sequences taking into account the ratio of their characters and can be used in digital and pulse tracking systems as well as in various special calculations.

The aim of the invention is to expand the functionality due to the fact that for a certain time interval the device generates at the output a number of pulses equal to the number of pulses of the input pulse sequences, if the characters of the characters of the input pulse sequences are the same, or equal to the difference of the number of pulses of the input pulse sequences with opposite the characters of the characters, the total pulse sequence is assigned the character of the character of the input pulse sequence with bo shim pulses amount to

given time interval.

Figure 1 shows the structural electrical circuit of the device for adding two random pulse sequences; figure 2 - timing charts of signals; a) on the reference frequency bus; S) on the first trigger output; g) at the second trigger output; i) on the bus of the first input pulse sequence; Q) on the bus of the second input pulse sequence; a) at the output of the pulse former (first); jfc) at the output of the pulse former (second); j) on the symbol bus of the sign of the first input pulse sequence; U) on the symbol bus of the second input pulse sequence; k) at the output of the element is excluded; its OR; l) at the direct output of the additional trigger; m) at the inverse output of an additional trigger; K,) at the output of the first element And; o) at the output of the second element And; o) at the output of the first OR element and the bus of the total pulse sequence;

p) at the output of the third element And;

c) at the output of the additional element And; 1) at the output of the second ele; OR or the bus symbol of the symbol of the total pulse sequence.

Device for adding two random impulse sequences 12

ten

15

2052682

It contains (figure 1) shaper -pulses 1 and 2, the outputs of which are through the first 3 and second 4 elements And are connected to two inputs of the first element OR 5. The first inputs of the shaper 1 and 2 are connected to buses 6 and 7 of the input pulse sequences, and the second inputs are connected to the outputs of the trigger 8, the input of which is connected to the reference frequency bus 9. Dynamic R- and S-inputs of the second trigger 10 are connected to the outputs of pulse shapers 1 and 2, potential R- and S-inputs to the output of the EXCLUSIVE OR element 11. The inputs of the EXCLUSIVE element. OR 11 are connected to buses 12 and 13 with the symbol of the sign of pulse sequences and in pairs are connected to the first inputs of the third 14 and additional 15 elements And, the second inputs of which are combined in pairs with the second inputs of elements And 3 and 4 and connected to the outputs of the trigger 10.

The outputs of the elements 14 and 15 are connected to the inputs of the second element OR 16, the output of which is connected to the bus 17 is the symbol of the symbol of the total pulse sequence. The output of the element OR 5 is connected to the bus 18 total pulse sequence. The third inputs of the drivers 1 and 2 are connected to the bus 9 reference frequency.

The device operates as follows.

The reference signal of the frequency f ,, is fed to the input of the trigger 8, on the first and second outputs of which two mismatched pulses are formed after 20

25

thirty

35

40

the frequency of negative frequency pulses

f g

which

then are fed to the second inputs of drivers 1 and 2. The first inputs of drivers 1 and 2 receive the pulses of the first f and second fg of the input pulse sequences, the third inputs receive the signal of the fon frequency. At the first input, the pulse shapers of the sequences f; j or f on them outputs are formed by single pulses formed from mismatched pulse sequences.

Coded in the binary system, the characters of the characters go to the inputs of the EXCLUSIVE OR 11 element, the output of which forms a low potential when the signals at the inputs are identical or high potential when the signals at the inputs are different.

When the symbols of the sign of the frequencies f and fg are identical, the trigger 10 is set to the third state. High potentials from the outputs of the trigger 10 allow the passage of pulses from the outputs of the formers 1 and 2 through the elements AND 3.4 and OR 5 to the bus 18. Thus, on the bus 18 a pulse sequence is formed with the frequency fg / f /) + f. (The signals from the outputs trigger 10 allows passing through the elements AND 14.15 and OR 16 characters of the sign of the frequencies f /) fa

With different symbols of the sign of the frequencies f and f, the trigger 10 is set to the state of logical O or logical 1 by dropping the pulses from the outputs of the formers 1 and 2 and permits the passage of pulses through the And 3 element at f, fj, or through the And 4 element at

conditions f, f.

or

f f fj. Fj analysis occurred

walks over a time interval equal to the instantaneous period of the larger frequency. The trigger 10 is switched by a pulse drop, therefore the switching pulse does not pass to the bus 18. This allows to receive on the bus 18 a signal of frequency f / The signals from the outputs of the trigger 10 allow passage through the elements 14,15 and OR 16 characters

the sign of the larger frequency f,

f.

Q S

five

g

d e g

3 u

to p

m

n

about p

R

J LJTTTLJlJTJnJlJnX

and and

and Lr LT

Pp

P

+

Ltl

.

.L.

J

P

P

G1

P

P

+

P

G1

P

P

t

G + Fi1.1

Compiler A.Klimov Editor A.Gulko Tehred Z.Kastelevich Proofreader L.Pilipenko

Order 8538/57 Circulation: 871 Signed by VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

-. ps -..tg. - .... 1g -.- .- --- .- -

Branch PPP Patent, Uzhgorod, Proektna St., 4

Claims (1)

DEVICE 'FOR THE DAY OF ADDING TWO RANDOM PULSE SEQUENCES, containing three AND elements, two OR elements, two pulse shapers and a trigger, pulse shaper outputs through the first and second AND elements connected to two inputs of the first OR element, the first inputs of the pulse shapers are connected the second inputs are connected to the outputs of the trigger, the third inputs of the pulse shapers are combined and connected to the input of the trigger and to the input bus, characterized in that, in order to expand the functional possibilities In addition, the second trigger, the fourth AND element, and the EXCLUSIVE OR element are additionally introduced into it, moreover, the dynamic R and S inputs of the second trigger are connected to the outputs of the pulse shapers, the potential R and S inputs are combined and connected to the output of the EXCLUSIVE OR, the inputs of which are connected to the input bus signs of the pulse sequences and are connected respectively to the first inputs of the third and fourth elements And, the second inputs of which are connected respectively to direct and inverse outputs of the second trigger and from the second and first and second inputs of AND gates, the outputs of the third and fourth AND gates are connected to the inputs of the second OR gate whose output is the output of the device landmark, an output of first OR gate is the output of the total device pulse sequences. SU, 1205268