SU531298A1

SU531298A1 - Device for frequency signal manipulation

Info

Publication number: SU531298A1
Application number: SU2106691A
Authority: SU
Inventors: Юрий Иванович Алехин
Original assignee: Предприятие П/Я Г-4367
Priority date: 1975-02-20
Filing date: 1975-02-20
Publication date: 1976-10-05

Description

1one

Изобретение относитс к технике радиосв зи , может использоватьс в системах передачи дискретной информации.The invention relates to a radio communication technique that can be used in discrete information transmission systems.

Известно устройство дл частотной манипул ции сигнала, содержащее суммирую- щий блок, к каждому входу которого подключена частотна цепь, состо ща из генератора импульсов и элемента И, второй вход которого соединен с соответствующим выходом источника манипулирующего сигнапа .It is known a device for frequency manipulation of a signal, comprising a summing unit, to each input of which a frequency circuit is connected, consisting of a pulse generator and element And, the second input of which is connected to the corresponding output of the source of the manipulating signal.

Однако в известном устройстве в прю- цессе манипул ции может возникнуть значительный скачок фазы выходного сигнала.However, in a known device in the manipulation section, a significant phase jump in the output signal may occur.

Цель изобретени - уменьшение скачка фазы вь/ходного сигнала.The purpose of the invention is to reduce the phase jump of the I / P signal.

В предлагаемом устройстве в каждую из частотных цепей между выходом генератора импульсов и входом элемента И формирователь импульсов, другие выходы которого подключены ко входам дополнительных элементов И. При этом вторые входы всех элементов И соединены вместе, а третьи соединены с выходами формировател импульсов через блок пам ти, причем In the proposed device, in each of the frequency circuits between the output of the pulse generator and the input of the element And the pulse shaper, the other outputs of which are connected to the inputs of additional elements I. The second inputs of all the elements And are connected together, and the third are connected to the outputs of the pulse shaper through the memory block , and

между выходом элемента И и входом суммирующего блока включен элемент ИЛИ, другие входы которого соединены с выходами дополнительных элементов И, а выход элемента ИЛИ подключен к управл к щему входу блока пам ти другой частотной цепи.between the output of the AND element and the input of the summing unit, the OR element is included, the other inputs of which are connected to the outputs of the additional AND elements, and the output of the OR element is connected to the control to the input of the memory block of another frequency circuit.

На чертеже приведена структурна схема устройства.The drawing shows a block diagram of the device.

Генератор импульсов 1 подключен через цепь, образованную формирователем импульсов 2, элементами И 3-5, элементом ИЛИ 6 и блоком пам ти 7, к суммирук дему блоку 8. На второй вход суммирующего блока подаютс импульсы от генератора импульсов 9 другой частотной цепи, которые коммутируютс аналогичной цепью, состо щей из формировател импульсов 1О, элементов И 11-13, элемента ИЛИ 14 и блока пам ти 15. Манипулирующий сигнал подаетс на входы 16 и 17.The pulse generator 1 is connected through a circuit formed by a pulse shaper 2, elements AND 3-5, element OR 6 and memory block 7 to the summing up of the demo block 8. The second input of the summing block is pulsed from the pulse generator 9 of another frequency circuit, which commutes a similar circuit consisting of impulse generator 1O, elements 11-13, element OR 14, and memory block 15. The manipulating signal is fed to inputs 16 and 17.

Устройство работает следующим образомThe device works as follows

Claims

The manipulation signal from an external source is fed to the inputs 16 and 17 in antiphase. Therefore, only the pulse generator 1 or 9 is transmitted to the summing block 8. Suppose that in the previous manipulation the manipulating signal was fed to the input 17, and a signal was present at the outputs of the memory block 15 that allowed the pulses to pass through the element 11. pulses with a repetition frequency determined by the pulse shaper 2 through the OR 14 elements are sent to the summing unit 8 and the memory input control input 7. There are no pulses at the output of the OR 6 element, since the manipulating signal at input 16 prohibits their passage through elements AND 3-5. In the pulse shaper 2, at this time, three pulse sequences are formed which are delayed in time relative to each other and, therefore, have different values for the current phase. With the arrival at the control input of the memory block 7 of the next pulse from the OR 14 element, voltages appear at its outputs, which coincide in level with the signals at its inputs. As a result, signals appear simultaneously at two inputs of one of the elements AND 3-5, and element AND appears to be prepared for the transmission of pulses upon receipt of the manipulating signal. Connected to the memory unit 7 inputs of the other two elements And the signals are missing 1, and these elements cannot pass pulses even if there is a manipulating signal at input 16. Thus, the switching circuit of the pulse generator 1 always monitors the phase of the output signal element 4 or OR 14 and prepares for input that signal from pulse generator 2, which coincided in time with the output signal of the element OR 14. Finally, after commutation, the time shift of the pulses with the frequency of the generator 1 is minimal, and therefore Jump in the phase shift keying greatly reduced. Apparatus of the Invention A device for frequency manipulation of a signal, containing a summing unit, to each input of which a frequency is connected to a circuit consisting of a pulse generator and an element, the second input of which is connected to the corresponding output of the source of the manipulating signal, , in order to reduce; A phase jump in the output signal, in each of the frequency circuits between the output of the pulse generator and the input of the element AND, a pulse shaper is connected, the other outputs of which are connected to the inputs of additional elements AND, the second inputs of all the elements And are connected together, and the third are connected to the outputs of the pulse shaper through the memory block, the OR element is connected between the output of the AND element and the input of the summing block, the other inputs of which are connected to the outputs of the additional AND elements, and the output of the OR element is connected control input memory other frequency circuit block.

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