CN203368485U - Short-wave four-channel photoelectric conversion interface unit - Google Patents
Short-wave four-channel photoelectric conversion interface unit Download PDFInfo
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- CN203368485U CN203368485U CN 201320383147 CN201320383147U CN203368485U CN 203368485 U CN203368485 U CN 203368485U CN 201320383147 CN201320383147 CN 201320383147 CN 201320383147 U CN201320383147 U CN 201320383147U CN 203368485 U CN203368485 U CN 203368485U
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Abstract
The utility model provides a short-wave four-channel photoelectric conversion interface unit. The short-wave four-channel photoelectric conversion interface unit comprises a photoelectric conversion module, a digital signal processing module, two radio frequency preprocessor modules, a power source module and a standard frequency module, wherein a light signals is converted by the photoelectric conversion module into a high speed difference electric signal, the high speed difference electric signal is converted by the digital signal processing module to output four paths of radiofrequency signals, the standard frequency module provides clock frequency required by the digital signal processing module, two radio frequency preprocessor modules internally comprise two amplification channels respectively through which the four paths of radiofrequency signals are amplified by 20dB, the digital signal processing module has external control interfaces which respectively control a post-selector, a power amplifier and an antenna tuner of an emitter, radiofrequency signals outputted by the radio frequency preprocessor modules are transmitted to the external post-selector for filtering processing and then are outputted to the power amplifier of the emitter. The short wave four-channel photoelectric conversion interface unit realizes integration of four short-wave zero intermediate frequency exciters, reduces weight and has properties of high bus transmission rate and good anti-interference performance.
Description
Technical field
The utility model relates to electronic circuit design field, in particular to a kind of shortwave four-way photoelectric conversion interface unit.
Background technology
Shortwave four-way photoelectric conversion interface unit designs for shortwave four-way integrated communication system, and this unit is the function that realizes the shortwave excitation of four passages.Because shortwave exciter in the past can only be realized the incentive action of single passage, if will realize the incentive action of four passages, need the drawer of a plurality of exciting units, weight is large, and volume is also larger.Generally all only with tone frequency channel wire, be connected between shortwave exciter and shortwave controller simultaneously, will have like this shortcomings such as transmission rate is low, anti-jamming effectiveness is poor.Along with the continuous appearance of the high DSP of arithmetic speed and fpga chip and the popularization of optical fiber transmission technique, can progressively overcome the above problems, the utility model is to address the above problem and proposes.
The utility model content
The utility model purpose is to provide a kind of shortwave four-way photoelectric conversion interface unit, has realized that four shortwave zero intermediate frequency exciters are integrated, saved weight, and bus transfer rate is high, good in anti-interference performance.
For reaching above-mentioned purpose, the utility model proposes a kind of shortwave four-way photoelectric conversion interface unit, comprise that photoelectric conversion module, four-in-one produce four tunnels independently digital signal processing module, two two-in-one radio frequency pretreatment module, power module and the mark frequency modules of short-wave radio frequency small-signal, wherein: power module provides whole interface unit needed voltage; Photoelectric conversion module receives four short out ripple signals and light signal is converted to the high-speed-differential signal of telecommunication by optical fiber; Digital signal processing module receives the described high-speed-differential signal of telecommunication and exports the radiofrequency signal of four road 0dBm through internal conversion; The mark frequency module provides digital signal processing module required clock frequency; Comprise respectively two amplification channels in two radio frequency pretreatment module and the radiofrequency signal of described four road 0dBm is amplified to 20dB; Digital signal processing module has external control interface, select device interface, power amplifier interface, day transfer mouth after being respectively four tunnels, select device, power amplifier and day tune after controlling external transmitter, the radiofrequency signal of described radio frequency pretreatment module output selects device to do the selective filter processing after being connected to outside, the filtering out-of-band noise, finally export transmitter power amplifier to.
Further, aforementioned digital signal processing module by inner FPGA by four shortwave passages digital medium-frequency signal, digital controlled signal parse, then give inner DSP and do baseband modulation and low-pass filtering treatment, then give the radiofrequency signal that inner upconverter is transformed into four road 0dBm.
Further, the light emitting power of aforementioned photoelectric conversion module is-9.5dBm～-3dBm, optical receiver sensitivity is-22dBm that light degree of lip-rounding formula is single mode LC.
From above the technical solution of the utility model, the beneficial effects of the utility model are to have realized that four shortwave zero intermediate frequency exciters are integrated, such advantage is can greatly conserve space and weight, pass through the Optical Fiber Transmission data with remote controller simultaneously, transmission rate is high, except supporting original narrow band data, also can support wideband data.Owing to being optical cable transmission, the good in anti-interference performance of this communication, can solve easily disturbed problem of original control audio signal.Therefore, this utility model can be used as the developing direction of the shortwave exciter that integrated level of new generation is high, transmission rate is high.
The accompanying drawing explanation
The circuit structure diagram that Fig. 1 is the utility model shortwave four-way photoelectric conversion interface unit.
The schematic diagram that Fig. 2 is the four-way high speed data transfer.
Embodiment
In order more to understand technology contents of the present utility model, especially exemplified by specific embodiment and coordinate appended graphic being described as follows.
Shown in figure 1, according to preferred embodiment of the present utility model, shortwave four-way photoelectric conversion interface unit comprises that photoelectric conversion module, four-in-one produce four tunnels independently digital signal processing module, two two-in-one two tunnels independently radio frequency pretreatment module, power module and mark frequency modules of short-wave radio frequency small-signal of producing of short-wave radio frequency small-signal.Wherein, power module provides whole interface unit needed voltage.
The controller of far-end is communicated with shortwave four-way photoelectric conversion interface unit by optical fiber, and maximum distance is 20Km.Wherein photoelectric conversion module receives four short out ripple signals and light signal is converted to the high-speed-differential signal of telecommunication, this module data transmission flank speed can reach 1.25Gbps, light emitting power is-9.5dBm～-3dBm, optical receiver sensitivity is-22dBm that light degree of lip-rounding formula is single mode LC.
With reference to the schematic diagram of the four-way high speed data transfer shown in figure 2, photoelectric conversion module is passed to digital signal processing module by the high-speed differential signal after conversion.Digital signal processing module by inner FPGA by four shortwave passages digital medium-frequency signal, digital controlled signal parse, then give inner DSP and do baseband modulation and low-pass filtering treatment, then give the radiofrequency signal that inner upconverter is transformed into four road 0dBm.
Comprise respectively two amplification channels in two radio frequency pretreatment module, and the radiofrequency signal of described four road 0dBm is amplified to 20dB.
Digital signal processing module has external control interface, select device interface, power amplifier interface, day transfer mouth after being respectively four tunnels, select device, power amplifier and day tune after controlling external transmitter, the radiofrequency signal of described radio frequency pretreatment module output selects device to do the selective filter processing after being sent to outside, the filtering out-of-band noise, finally export transmitter power amplifier to.
The mark frequency module provides digital signal processing module required clock frequency.
Although the utility model discloses as above with preferred embodiment, so it is not in order to limit the utility model.Have and usually know the knowledgeable in technical field under the utility model, within not breaking away from spirit and scope of the present utility model, when being used for a variety of modifications and variations.Therefore, protection range of the present utility model is as the criterion when looking claims person of defining.
Claims (2)
1. a shortwave four-way photoelectric conversion interface unit, it is characterized in that, comprise that photoelectric conversion module, four-in-one produce four tunnels independently digital signal processing module, two two-in-one radio frequency pretreatment module, power module and the mark frequency modules of short-wave radio frequency small-signal, wherein: power module provides whole interface unit needed voltage; Photoelectric conversion module receives four short out ripple signals and light signal is converted to the high-speed-differential signal of telecommunication by optical fiber; Digital signal processing module receives the described high-speed-differential signal of telecommunication and exports the radiofrequency signal of four road 0dBm through internal conversion; The mark frequency module provides digital signal processing module required clock frequency; Comprise respectively two amplification channels in two radio frequency pretreatment module and the radiofrequency signal of described four road 0dBm is amplified to 20dB; Digital signal processing module has external control interface, select device interface, power amplifier interface, day transfer mouth after being respectively four tunnels, select device, power amplifier and day tune after controlling external transmitter, the radiofrequency signal of described radio frequency pretreatment module output selects device to do the selective filter processing after being connected to outside, the filtering out-of-band noise, finally export transmitter power amplifier to.
2. shortwave four-way photoelectric conversion interface according to claim 1 unit, is characterized in that, the light emitting power of aforementioned photoelectric conversion module is-and 9.5dBm～-3dBm, optical receiver sensitivity is-22dBm that light degree of lip-rounding formula is single mode LC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320383147 CN203368485U (en) | 2013-06-28 | 2013-06-28 | Short-wave four-channel photoelectric conversion interface unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320383147 CN203368485U (en) | 2013-06-28 | 2013-06-28 | Short-wave four-channel photoelectric conversion interface unit |
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| CN203368485U true CN203368485U (en) | 2013-12-25 |
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| CN 201320383147 Expired - Fee Related CN203368485U (en) | 2013-06-28 | 2013-06-28 | Short-wave four-channel photoelectric conversion interface unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346836A (en) * | 2013-06-28 | 2013-10-09 | 熊猫电子集团有限公司 | Short-wave four-channel photovoltaic conversion interface unit |
| CN106714009A (en) * | 2016-12-15 | 2017-05-24 | 陕西烽火实业有限公司 | Shortwave radio station optical fiber communication system and method |
-
2013
- 2013-06-28 CN CN 201320383147 patent/CN203368485U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346836A (en) * | 2013-06-28 | 2013-10-09 | 熊猫电子集团有限公司 | Short-wave four-channel photovoltaic conversion interface unit |
| CN103346836B (en) * | 2013-06-28 | 2016-01-20 | 熊猫电子集团有限公司 | Short-wave four-channel photovoltaic conversion interface unit |
| CN106714009A (en) * | 2016-12-15 | 2017-05-24 | 陕西烽火实业有限公司 | Shortwave radio station optical fiber communication system and method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20200628 |
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| CF01 | Termination of patent right due to non-payment of annual fee |