CN103346836A - Short-wave four-channel photovoltaic conversion interface unit - Google Patents
Short-wave four-channel photovoltaic conversion interface unit Download PDFInfo
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- CN103346836A CN103346836A CN2013102735012A CN201310273501A CN103346836A CN 103346836 A CN103346836 A CN 103346836A CN 2013102735012 A CN2013102735012 A CN 2013102735012A CN 201310273501 A CN201310273501 A CN 201310273501A CN 103346836 A CN103346836 A CN 103346836A
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Abstract
The invention provides a short-wave four-channel photovoltaic conversion interface unit which comprises a photovoltaic conversion module, a digital signal processing module, two radio-frequency preprocessing modules, a power module and a standard frequency module. The photovoltaic conversion module converts an optical signal into a high-speed difference electric signal, the digital signal processing module converts the high-speed difference electric signal and outputs four paths of radio-frequency signals, the standard frequency module provides a clock frequency needed by the digital signal processing module, each radio-frequency preprocessing module comprises two amplifying channels and amplifies the four paths of radio-frequency signals by 20dB, the digital signal processing module is provided with outward control interfaces which have control over an transmitter rear selector, a power amplifier and an antenna adjuster, the radio-frequency signals output by the radio-frequency preprocessing modules are sent to the external transmitter rear selector, filtering processing is carried out on the radio-frequency signals, noise is filtered, and finally the radio-frequency signals are output to a transmitter power amplifier. The short-wave four-channel photovoltaic conversion interface unit achieves integration of four short-wave zero intermediate frequency exciters, reduces the weight, and is high in bus transmission rate and good in anti-disturbance performance.
Description
Technical field
The present invention relates to electronic circuit design field, in particular to a kind of shortwave four-way opto-electronic conversion interface unit.
Background technology
Shortwave four-way opto-electronic conversion interface unit designs for the integrated communication system of shortwave four-way, 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, then need the drawer of a plurality of exciting units, weight is big, and volume is also bigger.Generally all only link to each other with tone frequency channel wire between shortwave exciter and the shortwave controller simultaneously, will have shortcomings such as transmission rate is low, anti-interference weak effect like this.Along with arithmetic speed high DSP and the continuous appearance of fpga chip and the popularization of optical fiber transmission technique, can progressively overcome the above problems, the present invention is to address the above problem and proposes.
Summary of the invention
The object of the invention is to provide a kind of shortwave four-way opto-electronic conversion interface unit, has realized that four shortwave zero intermediate frequency exciters are integrated, has saved weight, and the bus transfer rate height, good in anti-interference performance.
For reaching above-mentioned purpose, the present invention proposes a kind of shortwave four-way opto-electronic conversion interface unit, comprise that photoelectric conversion module, four unifications namely produce four tunnel independently digital signal processing module, two two-in-one radio frequency pretreatment module, power module and 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 two amplification channels in two radio frequency pretreatment module respectively and the radiofrequency signal of described four road 0dBm is amplified 20dB; Digital signal processing module has external control interface, select device interface, power amplifier interface, day transfer mouth after being respectively four the tunnel, be used for selecting device, power amplifier and day accent behind the control external transmitter, the radiofrequency signal of described radio frequency pretreatment module output selects device to do the selective filter processing after being sent to the outside, the filtering out-of-band noise exports transmitter power amplifier at last to.
Further, the FPGA of aforementioned digital signal processing module by inside with four shortwave passages digital medium-frequency signal, digital controlled signal parse, give inner DSP then and do baseband modulation and low-pass filtering treatment, give the radiofrequency signal that inner upconverter is transformed into four road 0dBm again.
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.
By above technical scheme of the present invention as can be known, beneficial effect of the present invention is 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, the transmission rate height, except supporting original narrow band data, also can support wideband data.Owing to be the optical cable transmission, the good in anti-interference performance of this information transmission can solve original control audio signal disturbed problem easily.Therefore, this invention can be used as the developing direction of integrated level height of new generation, shortwave exciter that transmission rate is high.
Description of drawings
Fig. 1 is the circuit structure diagram of shortwave four-way opto-electronic conversion interface unit of the present invention.
Fig. 2 is the schematic diagram of four-way high speed data transfer.
Embodiment
In order more to understand technology contents of the present invention, especially exemplified by specific embodiment and cooperate appended graphic being described as follows.
With reference to shown in Figure 1, according to preferred embodiment of the present invention, shortwave four-way opto-electronic conversion interface unit comprises that photoelectric conversion module, four unifications namely produce four tunnel two-in-one two tunnel independently radio frequency pretreatment module, power module and mark frequency modules of short-wave radio frequency small-signal that namely produce of the digital signal processing module, two of short-wave radio frequency small-signal independently.Wherein, power module provides whole interface unit needed voltage.
The controller of far-end is communicated with shortwave four-way opto-electronic 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 four-way high speed data transfer shown in Figure 2, the high-speed differential signal after photoelectric conversion module will be changed is passed to digital signal processing module.The FPGA of digital signal processing module by inside with four shortwave passages digital medium-frequency signal, digital controlled signal parse, give inner DSP then and do baseband modulation and low-pass filtering treatment, give the radiofrequency signal that inner upconverter is transformed into four road 0dBm again.
Comprise two amplification channels in two radio frequency pretreatment module respectively, and the radiofrequency signal of described four road 0dBm is amplified 20dB.
Digital signal processing module has external control interface, select device interface, power amplifier interface, day transfer mouth after being respectively four the tunnel, be used for selecting device, power amplifier and day accent behind the control external transmitter, the radiofrequency signal of described radio frequency pretreatment module output selects device to do the selective filter processing after being sent to the outside, the filtering out-of-band noise exports transmitter power amplifier at last to.
The mark frequency module provides digital signal processing module required clock frequency.
Though the present invention discloses as above with preferred embodiment, so it is not in order to limit the present invention.The persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is as the criterion when looking claims person of defining.
Claims (3)
1. shortwave four-way opto-electronic conversion interface unit, it is characterized in that, comprise that photoelectric conversion module, four unifications namely produce four tunnel independently digital signal processing module, two two-in-one radio frequency pretreatment module, power module and 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 two amplification channels in two radio frequency pretreatment module respectively and the radiofrequency signal of described four road 0dBm is amplified 20dB; Digital signal processing module has external control interface, select device interface, power amplifier interface, day transfer mouth after being respectively four the tunnel, be used for selecting device, power amplifier and day accent behind the control external transmitter, the radiofrequency signal of described radio frequency pretreatment module output selects device to do the selective filter processing after being sent to the outside, the filtering out-of-band noise exports transmitter power amplifier at last to.
2. shortwave four-way opto-electronic conversion interface unit according to claim 1, it is characterized in that, the FPGA of aforementioned digital signal processing module by inside with four shortwave passages digital medium-frequency signal, digital controlled signal parse, give inner DSP then and do baseband modulation and low-pass filtering treatment, give the radiofrequency signal that inner upconverter is transformed into four road 0dBm again.
3. shortwave four-way opto-electronic conversion interface unit according to claim 1 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.
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| CN201310273501.2A CN103346836B (en) | 2013-06-28 | 2013-06-28 | Short-wave four-channel photovoltaic conversion interface unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103763000A (en) * | 2014-01-07 | 2014-04-30 | 熊猫电子集团有限公司 | Short wave transmitting and receiving all-in-one module based on CPCI bus |
| CN107294631A (en) * | 2016-03-30 | 2017-10-24 | 北京数码视讯科技股份有限公司 | The signal processing method and driver of a kind of driver |
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| CN101577557A (en) * | 2008-05-07 | 2009-11-11 | 朱军 | Short-wave nonmetal remote transmitting system |
| US20100060423A1 (en) * | 2008-09-05 | 2010-03-11 | Intermec Technologies Corporation | Radio frequency identification (RFID) reader with multiple receive channels |
| CN102420618A (en) * | 2011-12-28 | 2012-04-18 | 熊猫电子集团有限公司 | Short-wave four-channel transmitter based on space-time coding |
| CN202424733U (en) * | 2011-12-28 | 2012-09-05 | 熊猫电子集团有限公司 | Space-time coding-based short-wave digital signal processing module |
| CN203368485U (en) * | 2013-06-28 | 2013-12-25 | 熊猫电子集团有限公司 | Short-wave four-channel photoelectric conversion interface unit |
-
2013
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101577557A (en) * | 2008-05-07 | 2009-11-11 | 朱军 | Short-wave nonmetal remote transmitting system |
| US20100060423A1 (en) * | 2008-09-05 | 2010-03-11 | Intermec Technologies Corporation | Radio frequency identification (RFID) reader with multiple receive channels |
| CN102420618A (en) * | 2011-12-28 | 2012-04-18 | 熊猫电子集团有限公司 | Short-wave four-channel transmitter based on space-time coding |
| CN202424733U (en) * | 2011-12-28 | 2012-09-05 | 熊猫电子集团有限公司 | Space-time coding-based short-wave digital signal processing module |
| CN203368485U (en) * | 2013-06-28 | 2013-12-25 | 熊猫电子集团有限公司 | Short-wave four-channel photoelectric conversion interface unit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103763000A (en) * | 2014-01-07 | 2014-04-30 | 熊猫电子集团有限公司 | Short wave transmitting and receiving all-in-one module based on CPCI bus |
| CN107294631A (en) * | 2016-03-30 | 2017-10-24 | 北京数码视讯科技股份有限公司 | The signal processing method and driver of a kind of driver |
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