CN206341215U - Device is selected in a kind of shortwave prognosis - Google Patents
Device is selected in a kind of shortwave prognosis Download PDFInfo
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- CN206341215U CN206341215U CN201621479313.0U CN201621479313U CN206341215U CN 206341215 U CN206341215 U CN 206341215U CN 201621479313 U CN201621479313 U CN 201621479313U CN 206341215 U CN206341215 U CN 206341215U
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Abstract
The utility model belongs to digital tuning Frequency-hopping Communication Technology field, discloses a kind of shortwave prognosis and selects device, frequency hopping speed is fast, stable and reliable in work, can realize that device is selected in the higher shortwave prognosis of selectivity；The shortwave prognosis selects device to be arranged inside short-wave radio set, the shortwave prognosis select be provided with device preselector signal input part, after select device signal input part, preselector signal output part and after select device signal output part；The shortwave prognosis selects the device to include：Control unit, limited amplitude protection unit, the first transmitting-receiving converting unit, first band converting unit, the first resonant element, amplifying unit, the second resonant element, second band converting unit and the second transmitting-receiving converting unit.
Description
Technical field
The utility model belongs to digital tuning Frequency-hopping Communication Technology field, more particularly to device is selected in a kind of shortwave prognosis.
Background technology
With the continuous progress of Frequency-hopping Communication Technology, prognosis selects device with its superior function index by increasing designer
Accreditation, is widely used in military, commercial signal communication system, and matching transmission is presented to logical in-band frequency in it, to resistance in-band frequency
Mismatch and carry out reflection loss, so as to realize signal spectrum filtering function.
Device is selected in traditional shortwave prognosis, using the pattern for first amplifying again two stage filter more than preselector, then selects that device then more to be adopted
The pattern amplified again with first two stage filter, the shortwave prognosis of this pattern selects that device dynamic range is big, intermodulation index preferably, but choosing
Selecting property is relatively poor.
Utility model content
For the shortcoming of above-mentioned technology, the utility model provides a kind of shortwave prognosis and selects device, and frequency hopping speed is fast, working stability
It is reliable, it can realize that device is selected in the higher shortwave prognosis of selectivity.
To reach above-mentioned purpose, the utility model, which is adopted the following technical scheme that, to be achieved.
Device is selected in a kind of shortwave prognosis, and the shortwave prognosis selects device to be arranged inside short-wave radio set, and device is selected in the shortwave prognosis
On be provided with preselector signal input part, after select device signal input part, preselector signal output part and after select device signal output part；
The shortwave prognosis selects the device to include：Control unit, limited amplitude protection unit, the first transmitting-receiving converting unit, first band converting unit,
First resonant element, amplifying unit, the second resonant element, second band converting unit and the second transmitting-receiving converting unit；
Control signal of the control signal output of described control unit respectively with the described first transmitting-receiving converting unit is inputted
End, the second transmitting-receiving control signal input of converting unit, the control signal input of the first band converting unit,
The control signal input of the second band converting unit, the control signal input of first resonant element and described
The control signal input of two resonant elements is connected in parallel；
The signal input part of the limited amplitude protection unit is used as preselector signal input part, the letter of the limited amplitude protection unit
First signal input part of number output end connection the first transmitting-receiving converting unit；Second letter of the first transmitting-receiving converting unit
Number input selects device signal input part after；The signal output part of the first transmitting-receiving converting unit turns with the first band
Change the signal input part connection of unit, the letter of the signal output part of the first band converting unit and first resonant element
The connection of number input, the signal output part of first resonant element is connected with the signal input part of the amplifying unit, described
The signal output part of amplifying unit is connected with the signal input part of second resonant element, the signal of second resonant element
Output end is connected with the signal input part of the second band converting unit, the signal output part of the second band converting unit
It is connected with the signal input part of the described second transmitting-receiving converting unit, the first signal output part of the second transmitting-receiving converting unit is made
For preselector signal output part, the secondary signal output end of the second transmitting-receiving converting unit selects device signal output part after.
The characteristics of technical solutions of the utility model and further it is improved to；
(1) described control unit is used for the Serial Control instruction for receiving the transmission of short-wave radio set main control unit, and by the string
Row control instruction is converted to 16 parallel-by-bit control codes, wherein, the 1st to the 8th control code be used to setting the first resonant element and
Second resonant element produces resonant frequency；9th and the 10th is used to select first band converting unit and second band to change
The wave band of cell operation；11st is used to control the first transmitting-receiving work shape for receiving and dispatching converting unit and the second transmitting-receiving converting unit
State；12nd to the 16th is reserved place；
When the 11st be 0 when, it is described first transmitting-receiving converting unit and second transmitting-receiving converting unit be operated in reception shape respectively
State, when the 11st be 1 when, it is described first transmitting-receiving converting unit and second transmitting-receiving converting unit be operated in transmission state respectively；Or
Person, when the 11st be 0 when, it is described first transmitting-receiving converting unit and second transmitting-receiving converting unit be operated in transmission state respectively, when
11st be 1 when, it is described first transmitting-receiving converting unit and second transmitting-receiving converting unit be operated in reception state respectively.
(2) operating frequency range of the first band converting unit and the second band converting unit is 1.6MHz-
30MHz, the operating frequency range 1.6MHz-30MHz point are 1.6MHz-3.999MHz wave bands, 4MHz-9.999MHz wave bands,
10MHz-30MHz wave bands.
(3) described control unit is made up of two shift register cascades.
(4) the limited amplitude protection unit is composed in series by two power-type PIN diodes.
(5) alternative electronic switch is respectively adopted in the first transmitting-receiving converting unit and the second transmitting-receiving converting unit.
(6) the first band converting unit and the second band converting unit are respectively adopted four and select an electronic switch.
(7) integrated shortwave frequency hopping wave filter is respectively adopted in first resonant element and second resonant element, and
The working frequency of the integrated shortwave frequency hopping wave filter is 1.6MHz-30MHz.
(8) the integrated shortwave frequency hopping wave filter is packaged using radome.
The utility model has advantages below compared with existing technologies：Shortwave prognosis of the present utility model is selected device to use and first filtered
The pattern that ripple amplifies and then filtered again again, prognosis selects the noise floor of device small, and selectivity is high；Control unit uses shift LD
Device, control mode is simple, changes frequency speed fast.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 selects the structural representation of device for a kind of shortwave prognosis that the utility model embodiment is provided.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
The utility model embodiment provides a kind of shortwave prognosis and selects device, as shown in figure 1, the shortwave prognosis selects device to be arranged at
Inside short-wave radio set, the shortwave prognosis select be provided with device preselector signal input part, after select device signal input part, preselector
Signal output part selects device signal output part with after；The shortwave prognosis selects the device to include：Control unit, limited amplitude protection unit, first
Receive and dispatch converting unit, first band converting unit, the first resonant element, amplifying unit, the second resonant element, second band conversion
Unit and the second transmitting-receiving converting unit；
Control signal of the control signal output of described control unit respectively with the described first transmitting-receiving converting unit is inputted
End, the second transmitting-receiving control signal input of converting unit, the control signal input of the first band converting unit,
The control signal input of the second band converting unit, the control signal input of first resonant element and described
The control signal input of two resonant elements is connected in parallel；
The signal input part of the limited amplitude protection unit is used as preselector signal input part, the letter of the limited amplitude protection unit
First signal input part of number output end connection the first transmitting-receiving converting unit；Second letter of the first transmitting-receiving converting unit
Number input selects device signal input part after；The signal output part of the first transmitting-receiving converting unit turns with the first band
Change the signal input part connection of unit, the letter of the signal output part of the first band converting unit and first resonant element
The connection of number input, the signal output part of first resonant element is connected with the signal input part of the amplifying unit, described
The signal output part of amplifying unit is connected with the signal input part of second resonant element, the signal of second resonant element
Output end is connected with the signal input part of the second band converting unit, the signal output part of the second band converting unit
It is connected with the signal input part of the described second transmitting-receiving converting unit, the first signal output part of the second transmitting-receiving converting unit is made
For preselector signal output part, the secondary signal output end of the second transmitting-receiving converting unit selects device signal output part after.
Specifically, described control unit is used for the Serial Control instruction for receiving the transmission of short-wave radio set main control unit, and by institute
State Serial Control instruction and be converted to 16 parallel-by-bit control codes, wherein, the 1st to the 8th control code is used to set the first resonance list
Member and the second resonant element produce resonant frequency；9th and the 10th is used to select first band converting unit and second band
The wave band of converting unit work；11st is used to control the first transmitting-receiving work for receiving and dispatching converting unit and the second transmitting-receiving converting unit
State；12nd to the 16th is reserved place；
When the 11st be 0 when, it is described first transmitting-receiving converting unit and second transmitting-receiving converting unit be operated in reception shape respectively
State, when the 11st be 1 when, it is described first transmitting-receiving converting unit and second transmitting-receiving converting unit be operated in transmission state respectively；Or
Person, when the 11st be 0 when, it is described first transmitting-receiving converting unit and second transmitting-receiving converting unit be operated in transmission state respectively, when
11st be 1 when, it is described first transmitting-receiving converting unit and second transmitting-receiving converting unit be operated in reception state respectively.
The limited amplitude protection unit is used for the amplitude for limiting preselector signal input part input signal；
The first transmitting-receiving converting unit and the second transmitting-receiving converting unit are used under the control of described control unit
Switching preselector receive signal or after select device sending signal；
The first band converting unit and the second band converting unit are used under the control of described control unit
Select corresponding working frequency range；
First resonant element and second resonant element are used in the generation pair under the control of described control unit
The resonant frequency answered；
The amplifying unit is amplified to reply input signal.
Further, the operating frequency range of the first band converting unit and the second band converting unit is
1.6MHz-30MHz, the operating frequency range 1.6MHz-30MHz points are 1.6MHz-3.999MHz wave bands, 4MHz-
9.999MHz wave bands, 10MHz-30MHz wave bands.
Further, described control unit is made up of two shift register cascades.
Exemplary, the shift register uses 74HC164D.
Further, the limited amplitude protection unit is composed in series by two power-type PIN diodes.And the limited amplitude protection
Unit can bear 100W radiofrequency signal input power.
Further, alternative electronics is respectively adopted in the first transmitting-receiving converting unit and the second transmitting-receiving converting unit
Switch is realized.It is exemplary, when in 16 parallel-by-bit control codes the 11st be low level when, after select device to work, first transmitting-receiving
Converting unit and the second transmitting-receiving converting unit are operated in transmission state；When the 11st is high level in 16 parallel-by-bit control codes
When, preselector work, the first transmitting-receiving converting unit and the second transmitting-receiving converting unit are operated in reception state.
Further, the first band converting unit and the second band converting unit are respectively adopted four and select an electronics
Switch is realized.It is exemplary, when the 9th in 16 parallel-by-bit control codes, the 10th be all low level when, first band 1.6MHz~
3.999MHz works；It is low level when the 9th, the 10th when being high level, the second ripple short 4MHz~9.999MHz work；When
9 are high level, the 10th when being low level, the 3rd wave band 10MHz~30MHz work；When the 9th, the 10th are all high electricity
Usually, RF signal input end is led directly to RF signal output.
Further, integrated shortwave frequency hopping filtering is respectively adopted in first resonant element and second resonant element
Device is realized, and the working frequency of the integrated shortwave frequency hopping wave filter is 1.6MHz-30MHz.
Further, the integrated shortwave frequency hopping wave filter is packaged using radome.Exemplary, the shielding
Cover can be metal housing.
The amplifying unit, realizes, amplifying unit is applied in the first resonant element and second using integrated broadband amplifier
Between resonant element, useful radiofrequency signal first passes through the filtering of the first resonant element, then is amplified processing by amplifying unit,
Then exported again through the second resonant element frequency-selective filtering.
Shortwave prognosis of the present utility model selects the specific work process of device as follows：
The main control unit of short-wave radio set by low frequency interface to shortwave prognosis select device with serial communication mode send needed for
Frequency signal, control unit of the present utility model is received after serial clock and data command, by shift register by its
Be converted to 16 parallel-by-bit tuning code A0~A15 (wherein A11~A15 is vacant any code), A10 selection transceiver channels, A8, A9
Waveband selection is carried out, A0~A7 calls the data inside resonant element, produces useful frequency signal.
When A10 is high level, preselector work, radiofrequency signal is inputted from preselector input, first passes through limited amplitude protection
Unit, if input signal amplitude is excessive, limited amplitude protection unit carries out amplitude limiting processing, and such as input signal amplitude is normal, limited amplitude protection
Unit does not work.
After radio-frequency input signals is by limited amplitude protection unit, passage is received through the first transmitting-receiving converting unit selection, through first wave
Section converting unit selection working frequency range, signal output amplitude is improved by the first resonant element filtering process, then amplified unit,
Then handled by the second resonant element secondary filtering, working frequency range is selected by second band converting unit, finally by the
Two transmitting-receiving converting unit selections receive passage and are output to preselector output end；When A10 be low level when, after select device to work, radio frequency letter
Number select device input to input from afterwards, first pass through the first transmitting-receiving converting unit selection hair passage, selected through first band converting unit
Working frequency range, processing is filtered by the first resonant element, then amplified unit improves signal output amplitude, then by the
The processing of two resonant element secondary filterings, working frequency range is selected by second band converting unit, is changed finally by the second transmitting-receiving
Unit selection hair passage selects device output end after being output to.
Device is selected in shortwave prognosis of the present utility model, and control unit uses shift register, the conversion speed of shift register
It hurry up, shortwave prognosis selects the frequency converting time of device to be less than 1ms；Amplifying unit is arranged between two-stage resonant element, and resonant element can
Noise and clutter that radio-frequency input signals is brought are effectively filtered out, shortwave prognosis selects the selectivity of device good.
Prognosis of the present utility model select device by test with it is actually used, frequency hopping speed is fast, selectivity height, and working stability can
Lean on, after short-wave radio set, receiver sensitivity can improve 2dBm~3dBm, and emitter Out-of-band rejection can improve 10dB, can
Effectively improve the Electromagnetic Compatibility of short-wave radio set.
The above, embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model is disclosed
Or replace, it should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with the power
The protection domain that profit is required is defined.
Claims (9)
1. device is selected in a kind of shortwave prognosis, it is characterised in that the shortwave prognosis selects device to be arranged inside short-wave radio set, the shortwave
Prognosis select be provided with device preselector signal input part, after select device signal input part, preselector signal output part and after select device to believe
Number output end；The shortwave prognosis selects the device to include：Control unit, limited amplitude protection unit, the first transmitting-receiving converting unit, first band
Converting unit, the first resonant element, amplifying unit, the second resonant element, second band converting unit and the second transmitting-receiving conversion
Unit；
The control signal output of described control unit receives and dispatches control signal input, the institute of converting unit with described first respectively
State the control signal input of the second transmitting-receiving converting unit, it is the control signal input of the first band converting unit, described
The control signal input of second band converting unit, the control signal input of first resonant element and described second humorous
The control signal input of unit of shaking is connected in parallel；
The signal input part of the limited amplitude protection unit is as preselector signal input part, and the signal of the limited amplitude protection unit is defeated
Go out the first signal input part of end connection the first transmitting-receiving converting unit；The secondary signal of the first transmitting-receiving converting unit is defeated
Enter after end is used as and select device signal input part；The signal output part of the first transmitting-receiving converting unit is changed single with the first band
The signal input part connection of member, the signal of the signal output part of the first band converting unit and first resonant element is defeated
Enter end connection, the signal output part of first resonant element is connected with the signal input part of the amplifying unit, the amplification
The signal output part of unit is connected with the signal input part of second resonant element, the signal output of second resonant element
End is connected with the signal input part of the second band converting unit, the signal output part of the second band converting unit and institute
The signal input part connection of the second transmitting-receiving converting unit is stated, the first signal output part of the second transmitting-receiving converting unit is as pre-
Device signal output part is selected, the secondary signal output end of the second transmitting-receiving converting unit selects device signal output part after.
2. device is selected in a kind of shortwave prognosis according to claim 1, it is characterised in that
Described control unit is used for the Serial Control instruction for receiving the transmission of short-wave radio set main control unit, and the Serial Control is referred to
Order is converted to 16 parallel-by-bit control codes, wherein, the 1st to the 8th control code is used to set the first resonant element and the second resonance
Unit produces resonant frequency；9th and the 10th is used to select first band converting unit and second band converting unit to work
Wave band；11st is used to control the first transmitting-receiving working condition for receiving and dispatching converting unit and the second transmitting-receiving converting unit；12nd
It is reserved place to the 16th；
When the 11st be 0 when, it is described first transmitting-receiving converting unit and second transmitting-receiving converting unit be operated in reception state respectively, when
11st be 1 when, it is described first transmitting-receiving converting unit and second transmitting-receiving converting unit be operated in transmission state respectively；Or, when
11st be 0 when, it is described first transmitting-receiving converting unit and second transmitting-receiving converting unit be operated in transmission state respectively, when the 11st
For 1 when, it is described first transmitting-receiving converting unit and second transmitting-receiving converting unit be operated in reception state respectively.
3. device is selected in a kind of shortwave prognosis according to claim 2, it is characterised in that the first band converting unit and institute
The operating frequency range for stating second band converting unit is 1.6MHz-30MHz, the operating frequency range 1.6MHz-30MHz points
For 1.6MHz-3.999MHz wave bands, 4MHz-9.999MHz wave bands, 10MHz-30MHz wave bands.
4. device is selected in a kind of shortwave prognosis according to claim 1, it is characterised in that
Described control unit is made up of two shift register cascades.
5. device is selected in a kind of shortwave prognosis according to claim 1, it is characterised in that
The limited amplitude protection unit is composed in series by two power-type PIN diodes.
6. device is selected in a kind of shortwave prognosis according to claim 1, it is characterised in that
Alternative electronic switch is respectively adopted in the first transmitting-receiving converting unit and the second transmitting-receiving converting unit.
7. device is selected in a kind of shortwave prognosis according to claim 1, it is characterised in that
The first band converting unit and the second band converting unit are respectively adopted four and select an electronic switch.
8. device is selected in a kind of shortwave prognosis according to claim 1, it is characterised in that
Integrated shortwave frequency hopping wave filter is respectively adopted in first resonant element and second resonant element, and described integrated
The working frequency for changing shortwave frequency hopping wave filter is 1.6MHz-30MHz.
9. device is selected in a kind of shortwave prognosis according to claim 8, it is characterised in that
The integrated shortwave frequency hopping wave filter is packaged using radome.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621479313.0U CN206341215U (en) | 2016-12-30 | 2016-12-30 | Device is selected in a kind of shortwave prognosis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621479313.0U CN206341215U (en) | 2016-12-30 | 2016-12-30 | Device is selected in a kind of shortwave prognosis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206341215U true CN206341215U (en) | 2017-07-18 |
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ID=59304101
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621479313.0U Active CN206341215U (en) | 2016-12-30 | 2016-12-30 | Device is selected in a kind of shortwave prognosis |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712805A (en) * | 2016-12-30 | 2017-05-24 | 陕西烽火电子股份有限公司 | Shortwave pre-post selector |
| CN108832966A (en) * | 2018-06-06 | 2018-11-16 | 武汉博畅通信设备有限责任公司 | Device performance optimization method is selected in a kind of shortwave prognosis based on automatic control technology |
-
2016
- 2016-12-30 CN CN201621479313.0U patent/CN206341215U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712805A (en) * | 2016-12-30 | 2017-05-24 | 陕西烽火电子股份有限公司 | Shortwave pre-post selector |
| CN108832966A (en) * | 2018-06-06 | 2018-11-16 | 武汉博畅通信设备有限责任公司 | Device performance optimization method is selected in a kind of shortwave prognosis based on automatic control technology |
| CN108832966B (en) * | 2018-06-06 | 2019-11-22 | 武汉博畅通信设备有限责任公司 | Device performance optimization method is selected in a kind of shortwave prognosis based on automatic control technology |
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