CN208094562U - Multi-channel multi-frequency band interference signal generator - Google Patents
Multi-channel multi-frequency band interference signal generator Download PDFInfo
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- CN208094562U CN208094562U CN201820360491.4U CN201820360491U CN208094562U CN 208094562 U CN208094562 U CN 208094562U CN 201820360491 U CN201820360491 U CN 201820360491U CN 208094562 U CN208094562 U CN 208094562U
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Abstract
The utility model is related to multi-channel multi-frequency band interference signal generators; the signal generator is made of sawtooth wave generating circuit and FM circuit; it is characterized in that, the sawtooth wave generating circuit is mainly made of 555 triggers, PNP triodes, NPN triode I, NPN triode II and protective resistance；The FM circuit is mainly made of three voltage controlled oscillators, sawtooth wave output terminal is separately connected the control terminal of voltage controlled oscillator, voltage controlled oscillator is each configured with the modulation circuit of bandwidth and center frequency point, and the center frequency point that three tunnels adjust circuit is respectively 1.6GHz, 2.4GHz and 5.75GHz.Since amplitude is identical in the time domain for the frequency-modulated wave in broadband, the acute variation of amplitude is not present, to be effectively utilized the power margin of amplifier.And on frequency domain, it is continuous frequency sweep in bandwidth, and uniform fold each frequency point, each spectral line amplitude are of substantially equal, and amplitude difference is no more than 1dB.
Description
Technical field
The utility model is related to technology signal interference device fields, and in particular to a kind of multi-channel multi-frequency band interference signal generation
Device.
Background technology
With the fast development of information technology, information fighting has become the important operation row through high-tech operation overall process
Dynamic, it is the important content of electronic warfare in information fighting to interfere the information systems such as enemy's communication, navigation with electronic countermeasures means.Enhancing
Military radio Communications And Navigation system electromagnetic interference capability against the enemy has become the key for improving communication and navigation supportability, in order to
Easily implement radio communication electric warfare training in daily workout and rehearsal, improves equipment and cope with hostile electromagnetic with operating personnel
Interference performance, it is necessary to develop the small-power electronic interference system for communication countermeasure training.
The scheme that interference signal generates generally uses comb spectrum jamming program and continuous spectrum to block formula jamming program.Pectination is blocked
Resistive interference is often that adopted block is interference, and general implementation method is the multiple oscillation sources of setting in a jammer,
After additional combining, multichannel interference is sent out from a broad-band antenna.But the input for being connected to power amplifier after additional combining
End, for complicated FM amplitude modulation wave.The amplitude modulation feature of Dan Congqi complexity has made the power capacity utilization rate of power amplifier be down to very
It is low.It is known that when the input of power amplifier is the persistent wave of single frequency, it is amplified, output full power is corresponding output
Voltage.When the input of power amplifier is that multiple amplitudes are identical but the continuous wave signal of different frequency, certain all continuous wave signal in a flash
Mutually be in same phase, i.e., all in its maximum value when, the arithmetic that resultant voltage E ∑s are each constant amplitude wave voltage E1 is added, and is located
In maximum value.Output resultant voltage only has to be equal to or less than and no more than the maximum output voltage Em of power amplifier as a result,.This be because
For in most times, not instead of with being added, vector addition, resultant voltage E ∑s after being added are much smaller than multiple signals
Em, so in the power amplifier most of the time, power amplifier output power is much smaller than Pm, therefore the average output power of power amplifier is only full power
The 1/n of output.It only is in peak power output in few time, therefore the power capacity utilization rate of power amplifier is extremely low.Continuous spectrum blocks
Formula jamming program is to use list portion jammer list oscillation source broadband continuous frequency modulation mode, and existing wide band radio-frequency noise is directly put at present
The methods of big and noise wideband frequency modulation.Wherein, wide band radio-frequency noise is directly amplified is exported using white noise sound source, is amplified through power amplifier defeated
Go out and blocks formula interference to generate.Though white noise sound source has broader frequency spectrum but output energy is smaller, to pass through multistage broadband and amplify, and
Because noise output voltage is not persistent wave, the power capacity utilization rate of power amplifier is still relatively low, and power-efficient is also low.Make power amplifier
Power capacity utilization rate is high, and the frequency-modulated wave of continuous constant amplitude can be used, and implements Broadband FM to oscillation source using noise, to generate width
Band frequency spectrum.But since the amplitude of noise voltage is in normal distribution, the broader frequency spectrum generated after frequency modulation, energy is in frequency domain
Non-uniform Distribution, it cannot meet and block the identical requirement of each interference components energy in formula interference broader frequency spectrum.
Disadvantage of the prior art is that：The effective power utilization rate of comb spectrum jamming program is too low, and continuous spectrum blocks formula
The interference signal frequency spectrum of jamming program is simultaneously non-homogeneous, and the interference of Same Efficieney cannot be carried out to all frequency hopping frequency points, is influenced
Interference effect.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of multi-channel multi-frequency band interference signal production
Raw device,
The purpose of this utility model is achieved through the following technical solutions：
Multi-channel multi-frequency band interference signal generator, the signal generator is by sawtooth wave generating circuit and FM circuit group
At the sawtooth wave generating circuit is mainly by 555 triggers, PNP triodes, NPN triode I, NPN triode II and protection
Resistance forms；
The base stage of the PNP triode, emitter connect supply voltage, and collector connects the high/low level triggers of 555 triggers
End；
The base stage of the NPN triode I, collector connect supply voltage its emitter ground connection, and collector is also connected with 555 triggerings
The voltage controling end of device；
The base stage of the NPN triode II connects the output end of 555 triggers, and collector connects supply voltage and NPN triode I
Base stage and supply voltage, emitter ground connection；
It connects between the supply voltage and the base stage of PNP triode slide rheostat, the discharge end conduct of 555 triggers
Sawtooth wave output terminal；
The FM circuit is mainly made of three voltage controlled oscillators, and sawtooth wave output terminal is separately connected voltage controlled oscillator
Control terminal, voltage controlled oscillator are each configured with the modulation circuit of bandwidth and center frequency point, and three tunnels adjust the center frequency point point of circuit
It Wei not 1.6GHz, 2.4GHz and 5.75GHz.
Preferably, the supply voltage is 5V.
As being further improved for this programme, gone here and there respectively between the base stage of the PNP triode, emitter and supply voltage
Connection and protective resistance R3 and resistance R4.
As being further improved for this programme, the collector of the PNP triode is connected with ground capacity C7.
As being further improved for this programme, the voltage controling end of 555 trigger is connected with ground capacity C6.
As being further improved for this programme, between the base stage of the NPN triode I, collector and supply voltage respectively
It is in series with resistance R7 and resistance R6.
As being further improved for this programme, gone here and there between the base stage of the NPN triode II and the output end of 555 triggers
It is associated with resistance R8.
As being further improved for this programme, the control terminal of the sawtooth wave output terminal and voltage controlled oscillator is in series with signal
Processing circuit, the signal processing circuit are made of two slide rheostats, two protective resistances, capacitances, and the sawtooth wave is defeated
Outlet connects the head end of the first slide rheostat, connects after the first slide rheostat main tapping connection capacitance and then first resistor of connecting
Connect the control terminal of voltage controlled oscillator, the second slide rheostat main tapping and the series connection of second resistance head end, the second sliding variable resistance
Device head end connects the end of the first slide rheostat, and the second slide rheostat end ground connection, second resistance end is connected to capacitance
Between first resistor.
The utility model has the beneficial effects that：This module is made of sawtooth wave generating circuit and FM circuit two parts, wide
Amplitude is identical in the time domain for the frequency-modulated wave of band, and the acute variation of amplitude is not present, and the power to be effectively utilized amplifier holds
Limit.And on frequency domain, it is continuous frequency sweep in bandwidth, and uniform fold each frequency point, each spectral line amplitude are of substantially equal.Sawtooth
Wave is modulated on voltage controlled oscillator, generates the spectral line of basic constant amplitude, and is continuously distributed, and amplitude difference is no more than 1dB.
Description of the drawings
Fig. 1 is sawtooth wave generating circuit figure；
Fig. 2 is signal processing circuit figure；
Fig. 3 is FM circuit figure.
Specific implementation mode
The technical solution of the utility model, but the guarantor of the utility model are described in further detail with reference to specific embodiment
Shield range is not limited to as described below.
Multi-channel multi-frequency band interference signal generator, the signal generator is by sawtooth wave generating circuit and FM circuit group
At,
As shown in Figure 1：
Each port of 555 triggers is respectively：1 ground terminal, 2 low level triggering ends, 3 output ends, 4 reset terminals, the control of 5 voltages
End, 6 high level go out originator, 7 discharge ends, 8 voltage ends.
Sawtooth wave generating circuit include 555 trigger N2, PNP triode V1, I V2 of NPN triode, II V3 of NPN triode,
Resistance R3, R4, R5, R6, R7, capacitance C6, C7 and slide rheostat RP1.The base stage of PNP triodes V1, emitter connect 5V electricity
Source voltage, collector connect the high/low level triggers end i.e. port 2,6 of 555 triggers, the base stage of I V2 of NPN triode, collector
Supply voltage its emitter ground connection is connect, collector is also connected with the voltage controling end of 555 triggers；The base stage of II V3 of NPN triode
The output end of 555 triggers is connect, collector connects the base stage and supply voltage of I V2 of supply voltage and NPN triode, and emitter connects
Ground；Connect slide rheostat RP1 between supply voltage and the base stage of PNP triode V1, and the discharge end of 555 triggers is as sawtooth
Wave output terminal.It connects respectively between the base stage of PNP triode V1, emitter and supply voltage and protective resistance R3 and resistance R4,
The collector of PNP triode V1 is connected with ground capacity C7, and the voltage controling end of 555 triggers is connected with ground capacity C6, NPN
It is in series with resistance R7 and resistance R6 respectively between the base stage of I V2 of triode, collector and supply voltage, II V3's of NPN triode
Resistance R8 is in series between base stage and the output end of 555 triggers.
FM circuit is mainly made of three voltage controlled oscillators, and sawtooth wave output terminal is separately connected the control of voltage controlled oscillator
End, voltage controlled oscillator are each configured with the modulation circuit of bandwidth and center frequency point, and the center frequency point that three tunnels adjust circuit is respectively
1.6GHz, 2.4GHz and 5.75GHz.
As shown in Figure 2：
The control terminal of the sawtooth wave output terminal and voltage controlled oscillator is in series with signal processing circuit, the signal processing electricity
It route two slide rheostats, two protective resistances, capacitance composition, wherein to illustrate all the way, the connection of sawtooth wave output terminal
The head end of slide rheostat RP2, RP2 main tappings connect the control of connection voltage controlled oscillator after capacitance C8 and then series resistance R12
V-TUNE, the end of slide rheostat RP2 is held to connect the head end of another slide rheostat RP3, the ends RP3 ground connection, RP3 main tappings
Resistance R9 is connected, the other end of resistance R9 is connected between capacitance C8 and resistance R12.
As shown in Figure 3：
Modulation circuit be voltage controlled oscillator RF output end be in series with capacitance, resistance, inductance composition bandwidth, in
Heart frequency point modulation circuit so that the center frequency point of three tunnels output is respectively 1.6GHz, 2.4GHz and 5.75GHz.
Operation principle explanation：
This programme adjusts the discharge end output signal of trigger by triode and slide rheostat jointly, to be sawed
Tooth wave exports, and the sawtooth wave after output enters modulation circuit through reducing interference after signal processing, to obtain fixed frequency
Output signal the acute variation of amplitude is not present, since amplitude is identical in the time domain for the frequency-modulated wave in broadband to efficiently use
The power margin of amplifier.And on frequency domain, it is continuous frequency sweep in bandwidth, each frequency point of uniform fold, each spectral line
Amplitude is of substantially equal, and amplitude difference is no more than 1dB.
The above is only the preferred embodiment of the utility model, it should be understood that the utility model is not limited to herein
Disclosed form is not to be taken as excluding other embodiments, and can be used for other combinations, modifications, and environments, and
Can be in contemplated scope described herein, modifications can be made through the above teachings or related fields of technology or knowledge.And this field
The modifications and changes that personnel are carried out do not depart from the spirit and scope of the utility model, then all rights appended by the utility model
It is required that protection domain in.
Claims (8)
1. multi-channel multi-frequency band interference signal generator, the signal generator are made of sawtooth wave generating circuit and FM circuit,
It is characterized in that, the sawtooth wave generating circuit is mainly by 555 triggers, PNP triodes, NPN triode I, NPN triode II
And protective resistance composition；
The base stage of the PNP triode, emitter connect supply voltage, and collector connects the high/low level triggers end of 555 triggers；
The base stage of the NPN triode I, collector connect supply voltage its emitter ground connection, and collector is also connected with 555 triggers
Voltage controling end；
The base stage of the NPN triode II connects the output end of 555 triggers, and collector connects the base of supply voltage and NPN triode I
Pole and supply voltage, emitter ground connection；
It connects between the supply voltage and the base stage of PNP triode slide rheostat, the discharge end of 555 triggers is as sawtooth
Wave output terminal；
The FM circuit is mainly made of three voltage controlled oscillators, and sawtooth wave output terminal is separately connected the control of voltage controlled oscillator
End, voltage controlled oscillator are each configured with the modulation circuit of bandwidth and center frequency point, and the center frequency point that three tunnels adjust circuit is respectively
1.6GHz, 2.4GHz and 5.75GHz.
2. multi-channel multi-frequency band interference signal generator according to claim 1, which is characterized in that the supply voltage is
5V。
3. multi-channel multi-frequency band interference signal generator according to claim 2, which is characterized in that the PNP triode
Base stage, connect respectively and protective resistance R3 and resistance R4 between emitter and supply voltage.
4. multi-channel multi-frequency band interference signal generator according to claim 3, which is characterized in that the PNP triode
Collector be connected with ground capacity C7.
5. multi-channel multi-frequency band interference signal generator according to claim 1, which is characterized in that 555 trigger
Voltage controling end be connected with ground capacity C6.
6. multi-channel multi-frequency band interference signal generator according to claim 1, which is characterized in that the NPN triode I
Base stage, be in series with resistance R7 and resistance R6 respectively between collector and supply voltage.
7. multi-channel multi-frequency band interference signal generator according to claim 6, which is characterized in that the NPN triode
Resistance R8 is in series between II base stage and the output end of 555 triggers.
8. according to claim 1-7 any one of them multi-channel multi-frequency band interference signal generators, which is characterized in that the saw
The control terminal of tooth wave output terminal and voltage controlled oscillator is in series with signal processing circuit, and the signal processing circuit is become by two slidings
Device, two protective resistances, capacitance composition are hindered, the sawtooth wave output terminal connects the head end of the first slide rheostat, the first sliding
Rheostat main tapping connects the control terminal of voltage controlled oscillator, the second slide rheostat master after connecting capacitance and then first resistor of connecting
Tap and the series connection of second resistance head end, the second slide rheostat head end connect the end of the first slide rheostat, and the second sliding becomes
Device end ground connection is hindered, second resistance end is connected between capacitance and first resistor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820360491.4U CN208094562U (en) | 2018-04-13 | 2018-04-13 | Multi-channel multi-frequency band interference signal generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820360491.4U CN208094562U (en) | 2018-04-13 | 2018-04-13 | Multi-channel multi-frequency band interference signal generator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108418650A (en) * | 2018-04-13 | 2018-08-17 | 成都锦江电子系统工程有限公司 | Multi-channel multi-frequency band interference signal generator |
| RU205353U1 (en) * | 2020-08-31 | 2021-07-12 | федеральное государственное автономное образовательное учреждение высшего образования «Южный федеральный университет» | MULTI-CHANNEL SOUND SIGNAL FORMER |
-
2018
- 2018-04-13 CN CN201820360491.4U patent/CN208094562U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108418650A (en) * | 2018-04-13 | 2018-08-17 | 成都锦江电子系统工程有限公司 | Multi-channel multi-frequency band interference signal generator |
| CN108418650B (en) * | 2018-04-13 | 2024-02-20 | 成都锦江电子系统工程有限公司 | Multichannel multi-band interference signal generator |
| RU205353U1 (en) * | 2020-08-31 | 2021-07-12 | федеральное государственное автономное образовательное учреждение высшего образования «Южный федеральный университет» | MULTI-CHANNEL SOUND SIGNAL FORMER |
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