SU743173A1

SU743173A1 - Partially harmonic multistable filter

Info

Publication number: SU743173A1
Application number: SU782608208A
Authority: SU
Inventors: Виктор Михайлович Тузов
Original assignee: Московский Ордена Трудового Красного Знамени Электротехнический Институт Связи
Priority date: 1978-04-26
Filing date: 1978-04-26
Publication date: 1980-06-25

Description

ро, иход которого соединен с выходом сумматора, четвертый смеситель, выход которого соединен со вторым входом второго смесител , один вход подключен к выходу первого генератора опорного напр жени , второй вход четвертого смесител соединен со вторым входом первого смесител и выходом второго генератора опорного напр жени и инвертор, дополнительно введены четыре ключа, два смесител , сумматор, генератор опорного напр жени и ограничитель, вход которого соединен с выходом второго детектора и первым входом первого ключа, второй вход которого соединен с выходом первого ограничител и первым входом второго ключа, второй вход которого соединен с выходом второго детектора, а выход соединен через первый дополнительный смеситель, второй вход которого соединен с выходом дополнительного генератора опорного напр жени , а выход подключен к nepaoMj входу дополнительного сумматора, второй вход которого соединен с выходом третьего смесител , второй вход которого соединен с выходом третьего ключа, входы которого соединены соответственно с выходом первого фильтра и вьрсодом инвертора, вход которого подключен к выходу дополнительного ограничител , причем второй вход первого дополнительного смесител соединен с выходом управл емого генератора , выход первого ключа соединен с первым входом первого сумматора, второй вход которого подключен к выходу четвертого ключа, входы которого соответственно соединен с выходом первого детектора и выходом инвертора.ro, whose input is connected to the output of the adder, the fourth mixer, the output of which is connected to the second input of the second mixer, one input connected to the output of the first reference voltage generator, the second input of the fourth mixer and the second input of the first mixer and inverter, four keys, two mixers, an adder, a reference voltage generator and a limiter, the input of which is connected to the output of the second detector and the first input of the first key, are added, the second input to Secondly, it is connected to the output of the first limiter and the first input of the second key, the second input of which is connected to the output of the second detector, and the output is connected via the first additional mixer, the second input of which is connected to the output of the additional reference voltage generator, and the output is connected to the nepaoMj input of the additional adder, the second input of which is connected to the output of the third mixer, the second input of which is connected to the output of the third key, the inputs of which are connected respectively to the output of the first filter and the output of The interruptor, whose input is connected to the output of the additional limiter, the second input of the first additional mixer is connected to the output of the controlled generator, the output of the first key is connected to the first input of the first adder, the second input of which is connected to the output of the fourth key, the inputs of which are respectively connected to the output of the first detector and inverter output.

Структурна электрическа схема предлагаемого элемента приведена на чертеже.The structural electrical circuit of the proposed element is shown in the drawing.

Многоустойчивый элемент содержит управл емый генератор 1, смесители 2 и 3, фильтры 4 и 5, детекторы 6 и 7, генераторы 8 и 9 опорного напр жени , смесители 1О и 11, инвертор ,,12, сумматор 13, ограничители 14 и 15, ключи 16-19, смесители 2О и 21, генератор 22 опорного напр жени , сумматор 23.Multistable element contains controlled generator 1, mixers 2 and 3, filters 4 and 5, detectors 6 and 7, generators 8 and 9 of the reference voltage, mixers 1O and 11, inverter ,, 12, adder 13, limiters 14 and 15, keys 16-19, mixers 2O and 21, reference voltage generator 22, adder 23.

Выходной сигнал снимаетс с выхода 24.The output signal is removed from output 24.

Элемент работает следующим образом .The element works as follows.

Четырехполюсники, составленные из последовательно включенных перестраиваемого генератора 1, смесителей 2 и 3, фильтров 4 и 5 и детекторов 6 и 7,Four-pole networks made up of a tunable generator 1 in series, mixers 2 and 3, filters 4 and 5, and detectors 6 and 7,

будут обладать сдвинутыми амплитудными характеристиками. Соответственно на ыходах ограничителей 14 и 15 амплитудные характеристики будут представл тьwill have shifted amplitude characteristics. Accordingly, at the outputs of the limiters 14 and 15, the amplitude characteristics will be

собой сдвинутые неравноплечные меандры, а на выходе инвертора 12 будет меандр, инвертированный относительно меандра, образующегос на выходе ограничител 15. Напр жени с выхода ограничител shifted unequal arms meanders, and the output of the inverter 12 will be a meander, inverted relative to the meander, formed at the output of the limiter 15. The voltage from the output of the limiter

14 и инвертора 12 подаютс на управл ющие входы соответственно ключей 16. и 17 и, поскольку они будут открыты только при подаче на их управл ющие входы положительного напр жени , амплитудные характеристики на выходах ключей 16 и 17 будут сдвинуты и иметь вид периодических всплесков. Суммарна , амплитудна характеристика элемента образуетс суммированием амплитудных характеристик, получающихс на вььходах ключей 16 и 17, которое производитс сумматором 13.14 and inverter 12 are supplied to the control inputs of the keys 16 and 17, respectively, and since they will only be opened when a positive voltage is applied to their control inputs, the amplitude characteristics at the outputs of the keys 16 and 17 will be shifted and appear as periodic bursts. The total amplitude characteristic of the element is formed by summing the amplitude characteristics obtained on the inputs of keys 16 and 17, which is produced by the adder 13.

Claims

Since the stable states of the frequency-harmonic element are determined by the output frequency, it is necessary that in odd stable conditions the frequency at the output of the element is determined by the frequency of the spectral components, the reference voltage, and in the clear frequency of the shifted spectral components. Forming this voltage from the inputs of the limiter 14 and the inverter 12 are supplied respectively to the control inputs of the keys 18 and 19, the inputs of which respectively receive the voltage from the inputs of the filters 4 and 5. As a result of odd steady states, the key 18 will be open and the voltage from the output of the filter 4 will go to the mixer 1O, the output of which will generate a voltage with a frequency corresponding to the spectral component of the reference voltage spectrum. In even steady states, the key 18 will be closed, and the key 19 will be open, and the voltage from filter 5 will flow to mixer 20, the output of which will generate a voltage at a frequency corresponding to one of the spectral components of the shifted spectrum of the reference voltage . In order for the frequency, the coding element states to be equidistantly located on the frequency axis, the frequencies of the spectral components of the shifted spectrum of the reference voltage from the output of the mixer 20 are additionally shifted by the mixer 21 to the ROP frequency of the general generator 22, which is equal to F, -0., - the interval between the frequencies of the spectrum of the reference voltage FQP - the resonant frequencies of the filter 4 and 5. As a result, at the output of the mixer 2, there are frequencies (-. (beats shifted relative to the frequencies of the spectrum of the reference voltage by half the frequency) the terval l., and, respectively, at the output of the adder 23 in odd stability, the states will be voltage with frequencies io, and in even steady states with frequencies, 5-1; -H, 5A, ..., (v , 0.5) and, thus, the element states will be encoded with stable frequencies equidistantly located on the frequency axis. Formula of the Invention Frequency-harmonic multistable element containing a series-connected controlled oscillator, first mixer, first filter, first detector and first limiter consecutively included second the mixer, the second filter and the second detector are the third mixer, the first input of which is connected to the first input of the second mixer and the output of the controlled generator, the input of which is connected to the output of the adder, the fourth mixer, the output of which is connected to the second input of the second mixer, one input is connected to 36 the output of the first reference voltage generator, the second input of the fourth mixer is connected to the second input of the first mixer and the output of the second reference voltage generator and an inverter, characterized in that, in order to increase the number of stable states, it additionally includes four keys, two mixers, an adder, a reference voltage generator and a limiter whose input is connected to the output of the second detector and the first input of the first switch, the second input of which is connected to the output of the first limiter and the first input the second key, the second input of which is connected to the output of the second detector, and the output is connected through the first additional mixer to the first input of the second additional mixer, the second input of which is connected to the output of the additional the reference voltage generator, and ldsod is connected to the first input of an additional adder, the second input of which is connected to the output of the third mixer, the second input of which is connected to the output of the third key, the inputs of which are connected respectively to the output of the first filter and the output of the inverter limiter, the second input of the first additional mixer connected to the output of the controlled generator, the output of the first key is connected to the first input of the first adder, the second input D which is connected to the output of the fourth key, the inputs of which are respectively connected to the output of the first detector and the output of the inverter. Sources of information taken into account in the examination 1. NG motors. Et al. Frequency-phase multistable elements. Kiev, 1973, p. 75

2. USSR Author's Certificate of Application No. 2476460 / 18-21, l. N OZ K 3/29, 12.04.77.