SU856033A1

SU856033A1 - Frequency manipulator

Info

Publication number: SU856033A1
Application number: SU792787466A
Authority: SU
Inventors: Николай Борисович Резвецов; Александр Владимирович Аношкин; Николай Михайлович Поляков; Юрий Степанович Герасимов; Владимир Федорович Гавриш
Original assignee: Военная Орденов Ленина,Октябрьской Революции И Суворова Академия Им.Ф.Э.Дзержинского
Priority date: 1979-06-18
Filing date: 1979-06-18
Publication date: 1981-08-15

Description

Изобретение относится к системам· передачи дискретной информации для формирования частотно-манипулированных сигналов.The invention relates to systems · transmission of discrete information for the formation of frequency-manipulated signals.

Известен частотный манипулятор, содержащий два задающих генератора, выходы которых подключены к входам смесителя частот, - выход которого через последоательно соединенные удвоитель частоты и синхронизатор импульсов подключен к первому входу переключателя частот, ко входу которого подключен го задающего генератора, фазовый манипулятор [1].A frequency manipulator is known that contains two master oscillators, the outputs of which are connected to the inputs of the frequency mixer, the output of which is connected via a serially connected frequency doubler and a pulse synchronizer to the first input of the frequency switch, to the input of which the master oscillator is connected, a phase manipulator [1].

Однако данное устройство не обеспечивает полосу частот, при которой не было бы скачков фазы.However, this device does not provide a frequency band in which there would be no phase jumps.

Цель изобретения - сужение занимаемого диапазона частот.The purpose of the invention is the narrowing of the occupied frequency range.

Для достижения поставленной цели в частотный манипулятор, содержащий два задающих генератора,выходы которых подключены к входам смесителя частот, выход которого через последовательно соединенные удвоитель частоты и синхронизатор импульсов подключен к первому входу переключате· ля частот, ко второму входу которого подключен выход первого задающего генератора, d также фазовый манипулятор, введены диференцирующий блок и последовательно соединенные фа-, зовращатель, усилитель-ограничитель и элемент И, выход которого подключен к Первому входу фазового мани'пулятора, второй вход которого соединен с выходом переключателя частот, вход дифференцирующего блока соединен с выходом синхронизатора импульсов, а выход подсоединен к другому входу элемента И, кроме того, выход второго задающего генератора подключен к третьему входу пере-, ключателя частот, а вход фазовращателя соединен с выходом смёси'геля.To achieve this goal, a frequency manipulator containing two master oscillators, the outputs of which are connected to the inputs of the frequency mixer, the output of which is connected through a series-connected frequency doubler and a pulse synchronizer to the first input of the frequency switch, to the second input of which the output of the first master oscillator is connected, d also a phase manipulator, a differentiating unit and serially connected pha, sovraschitel, amplifier-limiter and element And, the output of which is connected to the First the input of the phase manipulator, the second input of which is connected to the output of the frequency switch, the input of the differentiating unit is connected to the output of the pulse synchronizer, and the output is connected to another input of the And element, in addition, the output of the second master oscillator is connected to the third input of the frequency switch, and the input of the phase shifter is connected to the output of the mix'gel.

На чертеже приведена структурная электрическая схема частотного манипулятора.The drawing shows a structural electrical diagram of a frequency manipulator.

Частотный манипулятор содержит два задающих генератора 1 и 2, смеситель 3.частот, удвоитель 4 частоты, синхронизатор 5 импульсов, переключатель 6 частот, фазовый манипулятор 7, фазовращатель 8, усилительограничитель 9, элемент 10 И и дифференцирующий блок 11.The frequency manipulator contains two master oscillators 1 and 2, a mixer 3. frequencies, a frequency doubler 4, a synchronizer 5 pulses, a switch 6 frequencies, a phase manipulator 7, a phase shifter 8, an amplifier 9, an element 10 And a differentiating unit 11.

Устройство работает следующим образом.The device operates as follows.

Колебания частот f|· И с выходов задающих генераторов 1 и 2 поступают на переключатель 6 частот и на смеситель 3. С выхода смесителя 3 колебание разностной частоты fj : поступает на удвоитель частоты и на фазовращатель 8.Oscillations of frequencies f | · And from the outputs of the master oscillators 1 and 2 go to the frequency switch 6 and to the mixer 3. From the output of the mixer 3, the difference frequency fluctuation fj: goes to the frequency doubler and to the phase shifter 8.

В моменты прохождения колебания разностной частоты через 0” на выходе удвоителя 4 появляются импульсы с частотой следования 2 . Эти импульсы поступают на вход синхронизатора’ 5 и обеспечивают преобразование входного сигнала в двоичный видеосигнал е длительностью символа Т = 2£~ > который с выхода синхронизатора 5 подается на переключатель . 6 частот в блок 11. Состояние двоичного видеосигнала определяет, какое из двух колебаний подается на вход . переключателя 6. На выходе переключателя^ 6 получают частотно-манипулированный сигнал с разрывом фазы, который поступает на манипулятор 7.At the moments when the difference frequency oscillation passes through 0 ”, pulses with a repetition rate of 2 appear at the output of the doubler 4. These pulses are fed to the input of the synchronizer ’5 and provide the conversion of the input signal into a binary video signal with the duration of the symbol T = 2 £ ~> which is sent to the switch from the output of the synchronizer 5. 6 frequencies per block 11. The state of the binary video signal determines which of the two oscillations is fed to the input. switch 6. At the output of switch ^ 6 receive a frequency-manipulated signal with phase discontinuity, which is fed to the manipulator 7.

ь , \b \

Управляющий манипулятором 7 сйгнал формируется следующим образом. С выхода фазовращателя 8 сдвинутое по фазе колебание разностной частоты ίβ, поступает на уаилитель-ограничитель 9, с выхода которого меандр подают на элемент 10 И. На другой вход элемента 10 И поступает с выхода блока 1 1 последовательность импульсов, которые образуются при изменении состояния двоичного видеосигнала. С выхода элемента 10 И на управляющий вход манипулятора 7 поступает Последовательность импульсов,, которая образуется из последовательности импульсов путем выбора тех импульсов, ко856033 4 торые образуются в такие моменты времени, когда фаза колебания разностной частоты f4 равна 180®. При поступлении импульса на управляющий 5 вход манипулятора 7 последний изменяет фазу поступающего на его вход сигнала. В результате на выходе манипулятора 7 получается частотноманипулированный сигнал, в котором установлены разрывы Фазы.The manipulator control signal 7 is formed as follows. From the output of the phase shifter 8, the phase-shifted oscillation of the difference frequency ίβ is fed to the amplifier-limiter 9, from the output of which the square wave is fed to element 10 I. At the other input of element 10 AND, a sequence of pulses is generated from the output of block 1 1, which are generated when the binary state changes video signal. From the output of element 10 AND, a pulse sequence arrives at the control input of the manipulator 7, which is formed from a sequence of pulses by selecting those pulses that are generated at such times when the phase of the oscillation of the difference frequency f4 is 180®. When a pulse arrives at the control 5 input of the manipulator 7, the latter changes the phase of the signal arriving at its input. As a result, at the output of the manipulator 7, a frequency-manipulated signal is obtained in which Phase gaps are established.

Частотный манипулятор позволяет формировать частотно-манипулированный сигнал с индексом модуляции Д = 0,5 и без разрыва фазы, что уменьшает 15 ширину занимаемой таким сигналом Полосы частот.The frequency manipulator allows you to generate a frequency-manipulated signal with a modulation index of D = 0.5 and without phase disruption, which reduces the 15 bandwidth occupied by such a signal.

Claims

The invention relates to a system for transmitting discrete information for generating frequency-manipulated signals. A frequency manipulator is known that contains two master oscillators, the outputs of which are connected to the inputs of a frequency mixer, whose output through successively connected frequency doubler and pulse synchronizer is connected to the first input of the frequency switch, to the second input of which the output of the first master oscillator is connected, as well as manipulator torus 1 j. However, this device does not provide a frequency band at which there would be no phase jumps. The purpose of the invention is to narrow the occupied frequency range. To achieve this goal, a frequency manipulator contains two master oscillators, the outputs of which are connected to the inputs of a frequency mixer, the output of which is connected through the serially connected frequency doubler and pulse synchronizer to the first input of the frequency switch, to the second input of which the output of the first master the generator, d is also a phase manipulator, a differential block and series-connected phases, a trigger, an amplifier-limiter and an element, whose output is connected to iiepBoMy in o phase phase switch; pultor, the second input of which is connected to the output of the frequency switch, the input of the differentiating unit is connected to the output of the pulse synchronizer, and the output is connected to another input of the And element, in addition, the output of the second input generator is connected to the third input of the switch frequency, and the input of the phase shifter is connected to the output of the mixture ate. The drawing shows a structural electrical circuit of the frequency manipulator choir a. The frequency manipulator contains two master oscillators 1 and 2, a mixture of frequency 3, a doubler 4 frequencies, a synchronizer of 5 pulses, a switch of 6 frequencies, a phase manipulator 7, a phase shifter 8, an amplifier limiter 9, an element 10 And and a differentiating unit 11. The device works in the following way . The oscillations of the f and f frequencies of the master oscillators 1 and 2 are fed to the frequency switch 6 and to the mixer 3. From the mixer 3 output, the difference frequency ff - fg oscillates to the doubler 4 CHS STOT and the phase shifter 8. At the time the differential frequency oscillates through O The output of doubler 4 appears pulses with a frequency of 2 f. These pulses are fed to the input of synchronizer 5 and provide conversion of the input signal into a binary video signal with a duration of symbol T 2, which from the output of synchronizer 5 is fed to frequency switch 6 in block 1I. The state of the binary video signal determines which of the two oscillations is fed to the input of switch 6. At the output of switch 6, a frequency-controlled 1st signal with phase discontinuity is received, which is fed to the manipulator 7. The control signal 7 is generated as follows. From the output of the phase shifter 8, the phase-shifted oscillation of the difference frequency f 0 enters the limiter 9, from the output of which the meaver is fed to element 10 I. To the other input of element 10 I comes from the output of the block 1 1 a pulse This is not a binary video signal. The output of element 10 and the control input of the manipulator 7 enters a sequence of pulses, which is formed from a sequence of pulses by selecting those pulses that form at those moments when the phase of oscillation of the difference frequency f is equal to 180®. . when the pulse arrives at the control input of the manipulator 7, the latter changes the phase of the signal arriving at its input. As a result, a manipulated signal is obtained at the output of the manipulator 7, in which phase discontinuities are established. The frequency manipulator allows the formation of a frequency-manipulated signal with the modulation index D 0.5 and without a phase interruption, which reduces the width of the Lo-band occupied by such a signal. The invention contains a frequency manipulator containing two master oscillators, the outputs of which are connected to the inputs of a frequency mixer, the output of which is connected through a series-connected frequency doubler and pulse synchronizer connected to the first input of the frequency switch, to the second input of which the output of the first master oscillator is connected, as well as the phase manipulator, characterized in that, in order to narrow the occupied frequency range, a differentiating unit and a series-connected phase shifter are introduced, A reader and an element, the output of which is connected to the first input of the phase manipulator, the second input of which is connected to the output of the frequency switch, the input of the differentiating unit is connected to the output of the sync pulse, and the output is connected to another input of the element And, in addition, the output of the second master oscillator connected to the third input of the frequency switch, and the input of the phase shifter is connected to the output of the mixer. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 313308, cl. And 04 L 27 / JO, 1969 (prototype).