CN207251628U - A kind of means for anti-jamming from dominant interference detecting and Real-time Channel distribution - Google Patents
A kind of means for anti-jamming from dominant interference detecting and Real-time Channel distribution Download PDFInfo
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- CN207251628U CN207251628U CN201721194639.3U CN201721194639U CN207251628U CN 207251628 U CN207251628 U CN 207251628U CN 201721194639 U CN201721194639 U CN 201721194639U CN 207251628 U CN207251628 U CN 207251628U
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Abstract
The utility model provides a kind of means for anti-jamming from dominant interference detecting and Real-time Channel distribution, including radio frequency reception channel, frequency synthesis and radio frequency transmitting channel, the radio frequency reception channel includes detector module, amplifier module, filter module and low-converter module, and detector module, amplifier module, filter module and low-converter module are sequentially connected；The radio frequency transmitting channel includes detector module, amplifier module and upconverter module, and detector module, amplifier module and upconverter module are sequentially connected；The frequency synthesis is DDS circuit module.The utility model improves the anti-interference of communication system, the carrier frequency of receiving-transmitting sides transmission signal is set to carry out Discrete Change according to agreement rule, i.e. communicate in Up/Down Conversion carrier wave by DDS circuit module control and random jump, a variety of accidental channels are produced by frequency displacement control signal, so as to reach anti-interference purpose, meet the requirement of receiving module performance well, for communication equipment, greatly improve the Performance And Reliability of equipment.
Description
Technical field
A kind of means for anti-jamming from dominant interference detecting and Real-time Channel distribution is the utility model is related to, belongs to radio and leads to
Interrogate technical field.
Background technology
Confront with each other and be particularly important in modern war, between electronic warfare, once being disturbed successfully by other side, then lose at once
Initiative is gone, a side of initiative is lost in electronic warfare, because of communication disruption, the possibility commanded failure and failed is very big.
To tackle the risk in this kind of military communication, using the detectings such as bounce frequency filter module DDS circuit module interference and
Channel is distributed in real time, therefore the requirement of higher is proposed to the antijamming capability of wireless telecom equipment, it is desirable to receives mould
Block image frequency and interference signal rejection ability are strong, and input dynamic range and machine sensitivity are high, thus we determine use with
Fast channel allocation Technology design theory based on frequency hopping, quick distribution conversion channel, makes interference signal can not interfere with just
Chang Xindao.
Utility model content
Resist in order to solve the above technical problems, the utility model provides a kind of detected from dominant interference with what Real-time Channel was distributed
Countermeasure set, should use the circuit such as control circuit and DDS chips from the means for anti-jamming of dominant interference detecting and Real-time Channel distribution,
The local oscillation signal for producing 155-305MHz carries out Up/Down Conversion to radio-frequency receiving-transmitting signal, will be disturbed after mixing under radio-frequency receiving-transmitting channel
Signal isolation, so as to avoid the electromagnetic interference between various frequencies, improves receiving sensitivity, drop outside if filter block
Low-noise factor, improves input dynamic range, image frequency and clutter suppression capability, so as to strengthen Electro Magnetic Compatibility, avoids letter
Number interfere with each other.
The utility model is achieved by the following technical programs.
A kind of means for anti-jamming from dominant interference detecting and Real-time Channel distribution provided by the utility model, including radio frequency connect
Passage, frequency synthesis and radio frequency transmitting channel are received, the radio frequency reception channel includes detector module, amplifier module, filtering
Device module and low-converter module, detector module, amplifier module, filter module and low-converter module are sequentially connected；
The radio frequency transmitting channel includes detector module, amplifier module, upconverter module and filter module, detector mould
Block, amplifier module, upconverter module and filter module are sequentially connected；The frequency synthesis is DDS circuit module；It is described
The upconverter module in low-converter module and radio frequency transmitting channel in radio frequency reception channel connects with DDS circuit module respectively
Connect.
Detector module in institute radio frequency reception channel and radio frequency transmitting channel is power detector module.
Amplifier module in the radio frequency reception channel is low noise amplifier module, and filter module filters for frequency hopping
Device module.
Amplifier module in the radio frequency transmitting channel is driving amplifier module, and filter module is intermediate-frequency filter
Module.
The DDS circuit module uses parallel port control, and Hopping time is less than 5us, and output signal is 155~305MHz, is obtained
Take the fast frequency-hopped channel of 50us.
The rf inputs of the radio frequency reception channel and the RF output end of radio frequency transmitting channel are inserted into coupling detection
Carry out power detection.
The beneficial effects of the utility model are：The anti-interference of communication system is improved, makes receiving-transmitting sides transmission signal
Carrier frequency carry out Discrete Change according to agreement rule, that is, the carrier wave of Up/Down Conversion is controlled by DDS circuit module in communicating
And random jump, a variety of accidental channels are produced by frequency displacement control signal, so as to reach anti-interference purpose, meet to receive well
The requirement of module performance, for communication equipment, greatly improves the Performance And Reliability of equipment.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the control principle drawing of the utility model channel.
Embodiment
Be described further below the technical solution of the utility model, but claimed scope be not limited to it is described.
As shown in Figure 1, a kind of means for anti-jamming from dominant interference detecting and Real-time Channel distribution, including radio frequency reception lead to
Road, frequency synthesis and radio frequency transmitting channel, realize that interference detecting and fast channel allocation function, the radio frequency reception channel include
Detector module, amplifier module, filter module and low-converter module, detector module, amplifier module, wave filter mould
Block and low-converter module are sequentially connected；The radio frequency transmitting channel includes detector module, amplifier module, upconverter mould
Block and filter module, detector module, amplifier module, upconverter module and filter module are sequentially connected；The frequency
Rate synthesis is DDS circuit module；The up-conversion in low-converter module and radio frequency transmitting channel in the radio frequency reception channel
Device module is connected with DDS circuit module respectively.
Detector module in institute radio frequency reception channel and radio frequency transmitting channel is power detector module.
Amplifier module in the radio frequency reception channel is low noise amplifier module, and filter module filters for frequency hopping
Device module.
Amplifier module in the radio frequency transmitting channel is driving amplifier module, and filter module is intermediate-frequency filter
Module.
The DDS circuit module uses parallel port control, and Hopping time is less than 5us, and output signal is 155~305MHz, is obtained
Take the fast frequency-hopped channel of 50us.
The rf inputs of the radio frequency reception channel and the RF output end of radio frequency transmitting channel are inserted into coupling detection
Carry out power detection.
Embodiment
As described above, a kind of means for anti-jamming from dominant interference detecting and Real-time Channel distribution, the course of work is as follows：
1. receive signal：The faint radio of power detector module reception antenna reception space in radio frequency reception channel
Signal simultaneously detects；
2. signal amplifies：Low noise amplifier module in radio frequency reception channel is put the radio signal received
Greatly；
3. select channel frequency：Amplified radio signal is subjected to bounce frequency filter module detecting, is selected corresponding
Channel frequency, this step detect interference signal；
4. letter obtains fast frequency-hopped channel：Consider a variety of interfering frequencies, by DDS circuit module output signal as local oscillator,
It is mixed with channel frequency, radio frequency reception channel interfering signal is isolated in outside upconverter module after mixing, is avoided
Electromagnetic interference between various frequencies, obtains fast frequency-hopped channel, and the frequency produced due to interference signal and DDS circuit module is not
Correlation, and DDS circuit module quickly constantly changes channel, so interference signal can not pass through bounce frequency filter module and DDS
Circuit module, finally obtains clean reception and transmitting signal；
5. obtain the signal of fast frequency-hopped channel：Fast frequency-hopped channel is subjected to down coversion in upconverter module, is obtained
The signal of fast frequency-hopped channel is taken, and is sent to DDS circuit module；
6. obtain quick change frequency hopping channel：Signal will be launched with the signal of fast frequency-hopped channel in if filter block
In be mixed, radio frequency transmitting channel interfering signal is isolated in outside upconverter module after mixing, avoids various frequencies
Electromagnetic interference between rate, obtains quick change frequency hopping channel；
7. obtain the signal of quick change frequency hopping channel：Quick change frequency hopping channel is carried out in upconverter module
Frequency conversion, obtains the signal of quick change frequency hopping channel；
8. power amplification：The signal of quick change frequency hopping channel carries out power amplification through driving amplifier module；
9. radio-frequency transmissions：By the signal of the quick change frequency hopping channel after power amplification, detected through power detector module
Radio-frequency transmissions afterwards.
The step 1. in the wireless signal that receives be less than -94dBm, 2. middle wireless signal amplifies 57~61dB to step,
6. the middle frequency for launching signal is 8MHz to step.
As shown in Fig. 2, channel control, which also needs to be used as using the high sine wave signal of mutually making an uproar of 1GHz or so, refers to source, this reality
With the new ADF4350PLL chips generation frequency change reference source using ADI companies.ADF4350 can generate 137MHz-
The sine wave of 4.4GHz frequency ranges, 1GHz's mutually makes an uproar as 93dBc@1kHz, 100dBc@>10kHz.
In conclusion the utility model enhances receiving sensitivity, noise coefficient is reduced, also improves input dynamic model
Enclose, image frequency, clutter suppression capability and Electro Magnetic Compatibility, avoid signal from interfering with each other.
Claims (6)
- A kind of 1. means for anti-jamming from dominant interference detecting and Real-time Channel distribution, it is characterised in that：Including radio frequency reception channel, Frequency synthesis and radio frequency transmitting channel, the radio frequency reception channel include detector module, amplifier module, filter module and Low-converter module, detector module, amplifier module, filter module and low-converter module are sequentially connected；The radio frequency Transmission channel includes detector module, amplifier module, upconverter module and filter module, detector module, amplifier Module, upconverter module and filter module are sequentially connected；The frequency synthesis is DDS circuit module；The radio frequency reception The upconverter module in low-converter module and radio frequency transmitting channel in passage is connected with DDS circuit module respectively.
- 2. as claimed in claim 1 from the means for anti-jamming of dominant interference detecting and Real-time Channel distribution, it is characterised in that：Penetrated Detector module in frequency receiving channel and radio frequency transmitting channel is power detector module.
- 3. as claimed in claim 1 from the means for anti-jamming of dominant interference detecting and Real-time Channel distribution, it is characterised in that：It is described Amplifier module in radio frequency reception channel is low noise amplifier module, and filter module is bounce frequency filter module.
- 4. as claimed in claim 1 from the means for anti-jamming of dominant interference detecting and Real-time Channel distribution, it is characterised in that：It is described Amplifier module in radio frequency transmitting channel is driving amplifier module, and filter module is if filter block.
- 5. as claimed in claim 1 from the means for anti-jamming of dominant interference detecting and Real-time Channel distribution, it is characterised in that：It is described DDS circuit module uses parallel port control, and Hopping time is less than 5us, and output signal is 155~305MHz, obtains the quick of 50us Frequency hopping channel.
- 6. as claimed in claim 1 from the means for anti-jamming of dominant interference detecting and Real-time Channel distribution, it is characterised in that：It is described The rf inputs of radio frequency reception channel and the RF output end of radio frequency transmitting channel are inserted into coupling detection and carry out power detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721194639.3U CN207251628U (en) | 2017-09-18 | 2017-09-18 | A kind of means for anti-jamming from dominant interference detecting and Real-time Channel distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721194639.3U CN207251628U (en) | 2017-09-18 | 2017-09-18 | A kind of means for anti-jamming from dominant interference detecting and Real-time Channel distribution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207251628U true CN207251628U (en) | 2018-04-17 |
Family
ID=61889139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721194639.3U Active CN207251628U (en) | 2017-09-18 | 2017-09-18 | A kind of means for anti-jamming from dominant interference detecting and Real-time Channel distribution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207251628U (en) |
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2017
- 2017-09-18 CN CN201721194639.3U patent/CN207251628U/en active Active
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