CN204362032U - Boat-carrying communication in moving is with amplification filtering system anti-interference in frequency band - Google Patents
Boat-carrying communication in moving is with amplification filtering system anti-interference in frequency band Download PDFInfo
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- CN204362032U CN204362032U CN201520013792.6U CN201520013792U CN204362032U CN 204362032 U CN204362032 U CN 204362032U CN 201520013792 U CN201520013792 U CN 201520013792U CN 204362032 U CN204362032 U CN 204362032U
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- phase shifter
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Abstract
The utility model discloses a kind of boat-carrying communication in moving with amplification filtering system anti-interference in frequency band, comprise the first filter, the second filter, the 3rd filter, the 4th filter, the 5th filter, the 6th filter, the 7th filter, the first amplifier, the second amplifier, the 3rd amplifier, the 4th amplifier, the 5th amplifier, the first phase shifter, the second phase shifter, the 3rd phase shifter, LC power splitter, the first frequency mixer, the second frequency mixer and wave detector.Noise factor of the present utility model is higher, peripheral coupling is simpler, gain is higher and better with frequency band interference free performance, can reach better noise factor and the most applicable signal to noise ratio of RF passage.
Description
Technical field
The utility model relates to boat-carrying communication in moving with frequency Anti-Jamming Technique field, particularly relates to a kind of boat-carrying communication in moving with amplifier anti-interference in frequency band, is mainly used in the strong jamming problem solving the adjacent 1MHz frequency of satellite beacon signals.
Background technology
At existing boat-carrying communication in moving with in frequency Anti-Jamming Technique field, low noise amplifier filtering system mainly adopts filtering channel to suppress, and by out designed in conjunction to impedance matching, filter impedance coupling, frequency mixer frequency spectrum shift and integrated difference signal treatment technology, but also exist that low, the peripheral coupling of noise factor is complicated, gain is low and with the defect of frequency band interference free performance difference.
Utility model content
The purpose of this utility model is just to provide a kind of boat-carrying communication in moving with amplification filtering system anti-interference in frequency band to solve the problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
A kind of boat-carrying communication in moving is with amplification filtering system anti-interference in frequency band, comprise the first filter, second filter, 3rd filter, 4th filter, 5th filter, 6th filter, 7th filter, first amplifier, second amplifier, 3rd amplifier, 4th amplifier, 5th amplifier, first phase shifter, second phase shifter, 3rd phase shifter, LC power splitter, first frequency mixer, second frequency mixer and wave detector, the output of described first filter is connected with the input of described first amplifier, the output of described first amplifier is connected with the input of described second filter, the output of described second filter is connected with the input of described second amplifier, the output of described second amplifier is connected with the input of described first phase shifter, the output of described 3rd filter is connected with the input of described 3rd amplifier, the output of described 3rd amplifier is connected with the input of described 4th filter, the output of described 4th filter is connected with the input of described 4th amplifier, the output of described 4th amplifier is connected with the input of described second phase shifter, the output of described first phase shifter is connected with the wherein two paths of signals input of described LC power splitter respectively with the output of described second phase shifter, the output of described LC power splitter is connected with the input of described 5th filter, the output of described 5th filter is connected with the input of described 3rd phase shifter, the output of described 3rd phase shifter is connected with the input of described first frequency mixer, the output of described first frequency mixer is connected with the input of described 5th amplifier, the output of described 5th amplifier is connected with the input of described 6th filter, the output of described 6th filter is connected with the input of described second frequency mixer, the output of described second frequency mixer is connected with the input of described 7th filter, the output of described 7th filter is connected with the input of described wave detector.
Further, described first amplifier, described second amplifier, described 3rd amplifier, described 4th amplifier and described 5th amplifier are ultra-low noise amplifier.
The beneficial effects of the utility model are:
Noise factor of the present utility model is higher, peripheral coupling is simpler, gain is higher and better with frequency band interference free performance, can reach the most applicable signal to noise ratio of better noise factor and radio-frequency channel.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of boat-carrying communication in moving described in the utility model with amplification filtering system anti-interference in frequency band.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, the utility model comprises the first filter, second filter, 3rd filter, 4th filter, 5th filter, 6th filter, 7th filter, first amplifier, second amplifier, 3rd amplifier, 4th amplifier, 5th amplifier, first phase shifter, second phase shifter, 3rd phase shifter, LC power splitter, first frequency mixer, second frequency mixer and wave detector, the output of the first filter is connected with the input of the first amplifier, the output of the first amplifier is connected with the input of the second filter, the output of the second filter is connected with the input of the second amplifier, the output of the second amplifier is connected with the input of the first phase shifter, the output of the 3rd filter is connected with the input of the 3rd amplifier, the output of the 3rd amplifier is connected with the input of the 4th filter, the output of the 4th filter is connected with the input of the 4th amplifier, the output of the 4th amplifier is connected with the input of the second phase shifter, the output of the first phase shifter and the output of the second phase shifter are connected with the wherein two paths of signals input of LC power splitter respectively, the output of LC power splitter is connected with the input of the 5th filter, the output of the 5th filter is connected with the input of the 3rd phase shifter, the output of the 3rd phase shifter is connected with the input of the first frequency mixer, the output of the first frequency mixer is connected with the input of the 5th amplifier, the output of the 5th amplifier is connected with the input of the 6th filter, the output of the 6th filter is connected with the input of the second frequency mixer, the output of the second frequency mixer is connected with the input of the 7th filter, the output of the 7th filter is connected with the input of wave detector.
In the present embodiment, the first amplifier, the second amplifier, the 3rd amplifier, the 4th amplifier and the 5th amplifier all select ultra-low noise amplifier.
Boat-carrying communication in moving described in the utility model is with amplification filtering system anti-interference in frequency band, have employed double-channel signal synthesis tracking structure, wherein the first filter, first amplifier, second filter, second amplifier and the first phase shifter constitute the first signal input channel, 3rd filter, 3rd amplifier, 4th filter, 4th amplifier and the second phase shifter constitute secondary signal input channel, each road signalling channel is all by filter inhibition zone external signal, amplified by low noise noise amplifier again, again after secondary filtering suppresses, obtain better signal, phase shift process is carried out after amplifying again.Two paths of signals synthesizes a road signal by LC power splitter, then passes through frequency-conversion processing for the first time and becomes low frequency signal, become the low frequency signal of arrowband, then secondary filtering is processed into hundreds of KHZ signal.After second order difference frequency conversion, mix intermediate frequency matching algorithm and common-mode rejection ratio, improve the signal sensitivity that the noise factor of passage and passage combine with antenna.The peripheral match circuit that the utility model adopts is more simple, do not adopt the mode of filtering comprehensively should with peripheral match circuit.
These are only preferred embodiment of the present utility model, not in order to limit the utility model, all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included in protection range of the present utility model.
Claims (2)
1. a boat-carrying communication in moving is with amplification filtering system anti-interference in frequency band, it is characterized in that: comprise the first filter, second filter, 3rd filter, 4th filter, 5th filter, 6th filter, 7th filter, first amplifier, second amplifier, 3rd amplifier, 4th amplifier, 5th amplifier, first phase shifter, second phase shifter, 3rd phase shifter, LC power splitter, first frequency mixer, second frequency mixer and wave detector, the output of described first filter is connected with the input of described first amplifier, the output of described first amplifier is connected with the input of described second filter, the output of described second filter is connected with the input of described second amplifier, the output of described second amplifier is connected with the input of described first phase shifter, the output of described 3rd filter is connected with the input of described 3rd amplifier, the output of described 3rd amplifier is connected with the input of described 4th filter, the output of described 4th filter is connected with the input of described 4th amplifier, the output of described 4th amplifier is connected with the input of described second phase shifter, the output of described first phase shifter is connected with the wherein two paths of signals input of described LC power splitter respectively with the output of described second phase shifter, the output of described LC power splitter is connected with the input of described 5th filter, the output of described 5th filter is connected with the input of described 3rd phase shifter, the output of described 3rd phase shifter is connected with the input of described first frequency mixer, the output of described first frequency mixer is connected with the input of described 5th amplifier, the output of described 5th amplifier is connected with the input of described 6th filter, the output of described 6th filter is connected with the input of described second frequency mixer, the output of described second frequency mixer is connected with the input of described 7th filter, the output of described 7th filter is connected with the input of described wave detector.
2. boat-carrying communication in moving according to claim 1 is with amplification filtering system anti-interference in frequency band, it is characterized in that: described first amplifier, described second amplifier, described 3rd amplifier, described 4th amplifier and described 5th amplifier are ultra-low noise amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520013792.6U CN204362032U (en) | 2015-01-08 | 2015-01-08 | Boat-carrying communication in moving is with amplification filtering system anti-interference in frequency band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520013792.6U CN204362032U (en) | 2015-01-08 | 2015-01-08 | Boat-carrying communication in moving is with amplification filtering system anti-interference in frequency band |
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| Publication Number | Publication Date |
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| CN204362032U true CN204362032U (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520013792.6U Active CN204362032U (en) | 2015-01-08 | 2015-01-08 | Boat-carrying communication in moving is with amplification filtering system anti-interference in frequency band |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208826A (en) * | 2019-05-29 | 2019-09-06 | 哈尔滨工程大学 | A kind of digital satellite smart antenna of multimode multi-frequency |
-
2015
- 2015-01-08 CN CN201520013792.6U patent/CN204362032U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208826A (en) * | 2019-05-29 | 2019-09-06 | 哈尔滨工程大学 | A kind of digital satellite smart antenna of multimode multi-frequency |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |