CN203661057U - Satellite intermediate frequency signal conversion device applied to shipborne two-way communication antenna - Google Patents
Satellite intermediate frequency signal conversion device applied to shipborne two-way communication antenna Download PDFInfo
- Publication number
- CN203661057U CN203661057U CN201320802772.8U CN201320802772U CN203661057U CN 203661057 U CN203661057 U CN 203661057U CN 201320802772 U CN201320802772 U CN 201320802772U CN 203661057 U CN203661057 U CN 203661057U
- Authority
- CN
- China
- Prior art keywords
- signal
- satellite
- blender
- upward
- converter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000004891 communication Methods 0.000 title claims abstract description 37
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 15
- 238000001914 filtration Methods 0.000 abstract description 7
- 230000003321 amplification Effects 0.000 abstract description 4
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 4
- 230000010287 polarization Effects 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 8
- 238000012545 processing Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Landscapes
- Radio Relay Systems (AREA)
Abstract
The utility model discloses a satellite intermediate frequency signal conversion device applied to a shipborne two-way communication antenna. The conversion device comprises an outdoor converter, a single channel rotary joint and an indoor converter, wherein the outdoor converter, the single channel rotary joint and the indoor converter are connected in turn. An upper variable frequency power amplifier is connected between the outdoor converter and a satellite antenna. The satellite antenna is connected with the outdoor converter through a tuner. A computer, a telephone and other communication devices are connected with the indoor converter through a satellite modem. An uplink signal sent by a communication device undergoes frequency mixing of the indoor converter, and then undergoes difference frequency operation and filtering of the indoor converter. A downlink signal in a mixed signal is filter out. The uplink signal undergoes power amplification and is transmitted to a satellite through the satellite antenna. The uplink signal and the down signal are transmitted at the same time in the same cable. At low cost, the problem that mutual interference is produced when the uplink signal and the down signal are transmitted in the same cable is effectively solved. The conversion device has the advantages of high cable utilization rate and high compatibility.
Description
Technical field
The utility model relates to wireless communication technology field, is specifically related to a kind of cost low, and cable utilance is high, compatible strong, can effectively solve the satellite intermediate frequency chromacoder that phase mutual interference occurs when upward signal and downstream signal transmit in same cable.
Background technology
In satellite TV signal transmitting procedure, for improving channel bandwidth utilization ratio, often signal is divided into two kinds of contrary modes of polarization and propagates, as linear polarization is divided into horizontal polarization and perpendicular polarization, circular polarization is divided into left-handed polarization and right-hand polarization.For fixed-line subscriber, often a surface antenna only connects a receiver, the satellite-signal of the different polarization modes of mode selective reception that receiver can switch by 13V/18V voltage.But for the mobile vehicle such as automobile, boats and ships user, because mobile satellite antenna is expensive, need many receivers to share the signal of a surface antenna.And mobile satellite antenna is in order to adapt to carrier movement, need to carry out real-time 360 ° and adjust orientation angles, single channel satellite intermediate frequency signal generally can only be transmitted in the place of being rotatably connected, in the time that sharing a mobile satellite antenna, many receivers can there is sharing conflict, many receivers can only receive the satellite-signal of same polarization mode simultaneously, thereby cannot normally receive whole TV programme of direct broadcasting satellite.
Being present in that current this problem is general is vehicle-mounted, among boat-carrying satellite tv antenna system, also be present in vehicle-mounted, boat-carrying two-way communication antenna simultaneously, this antenna is not only wanted receiving satellite signal, the signal of simultaneously also will launching an artificial satellite, conventional Single-channel Rolling joint cannot meet user demand, can only use Two channels rotating joint, but Two channels rotating joint is not only expensive, and useful life is not high, this is one of major technique bottleneck that restriction is vehicle-mounted, boat-carrying two-way communication antenna develops always.And, in satellite-signal transmitting procedure, because the frequency of upward signal and the frequency range of downstream signal are all between 950～2150MHz, while transmission, can cause frequency interferences in same cable, the signal that affects normal satellite signal receiving and communication apparatus sends, the signal producing while transmission in same cable in order to solve upward signal and downstream signal disturbs, general satellite communication device is all to adopt many cables to coordinate with Two channels rotating joint or multipassage rotary joint to carry out multiple signals to separate transmission, on the one hand, Two channels rotating joint and multipassage rotary joint are expensive, useful life is not long, on the other hand, in the time that cable distance is long, can greatly increase construction cost, the maintenance cost in material cost and later stage.
Utility model content
The defect existing in order to solve above-mentioned technology, the utility model provides a kind of cost low, and cable utilance is high, compatible strong, can effectively solve the satellite intermediate frequency chromacoder that phase mutual interference occurs when upward signal and downstream signal transmit in same cable.
The utility model is realized the technical scheme that above-mentioned technique effect adopts:
A kind of satellite intermediate frequency chromacoder that is applied to boat-carrying two-way communication antenna, comprise successively outdoor transducer, single channel swivel joint and indoor transducer that connect and can both-way communication, between the output of described outdoor transducer and the input of satellite antenna, be connected with up-conversion power amplifier, the input of described outdoor transducer is connected with satellite antenna by tuner, and between described indoor transducer and communication apparatus, modem is connected via satellite.
Above-mentioned a kind of satellite intermediate frequency chromacoder that is applied to boat-carrying two-way communication antenna, described indoor transducer comprises first signal blender, described first signal blender is provided with upward signal input, downstream signal output and mixed signal end, between the upward signal input of described first signal blender and the upward signal output of described satellite modem, be provided with upward signal circuit, between the downstream signal output of described first signal blender and the downstream signal input of described satellite modem, be provided with downstream signal circuit.
Above-mentioned a kind of satellite intermediate frequency chromacoder that is applied to boat-carrying two-way communication antenna, in the upward signal circuit of described first signal blender, be provided with the first frequency mixer of series connection, described the first frequency mixer is connected with first signal source, and the mixed signal end of described first signal blender is connected with one end of described single channel swivel joint.
Above-mentioned a kind of satellite intermediate frequency chromacoder that is applied to boat-carrying two-way communication antenna, described outdoor transducer comprises secondary signal blender, described secondary signal blender is provided with upward signal output, downstream signal input and mixed signal end, between the upward signal output of described secondary signal blender and the input of described up-conversion power amplifier, be provided with upward signal circuit, between the downstream signal input of described secondary signal blender and the output of described tuner, be provided with downstream signal circuit.
Above-mentioned a kind of satellite intermediate frequency chromacoder that is applied to boat-carrying two-way communication antenna, in the upward signal circuit of described secondary signal blender, be provided with the second frequency mixer and the filter of series connection, the output of described the second frequency mixer is connected with the input of described filter, described the second frequency mixer is connected with secondary signal source, and the mixed signal end of described the second frequency mixer is connected with the other end of described single channel swivel joint.
The beneficial effects of the utility model are: the upward signal that this device transmits the communication apparatus such as computer telephone is sent into indoor transducer and carried out Frequency mixing processing, then carry out difference frequency computing and filtering processing through indoor transducer, filter out the downstream signal in mixed signal, finally to upward signal carry out power amplification and via satellite antenna transmission to satellite, realize and in same cable, transmitted upward signal and downstream signal simultaneously, thereby eliminate the dependence of prior art to Two channels rotating joint and multipassage rotary joint, reduce cost, mutual interference problem when efficiently solving upward signal and downstream signal and transmitting in same cable, cable utilance is high, compatible strong, can completely compatible existing boat-carrying, carry-on-vehicle satellite television antenna and two-way communication antenna, there is very strong applicability and significant realistic meaning.
Brief description of the drawings
Fig. 1 is that module of the present utility model connects block diagram;
Fig. 2 is the internal structure circuit diagram of indoor transducer described in the utility model;
Fig. 3 is the internal structure circuit diagram of outdoor transducer described in the utility model;
In figure: 1-satellite antenna, 2-up-conversion power amplifier, 3-tuner, the outdoor transducer of 4-, 5-single channel swivel joint, the indoor transducer of 6-, 7-satellite modem, 8-communication apparatus, 41-secondary signal blender, 42-the second frequency mixer, 43-filter, 44-secondary signal source, 61-first signal blender, 62-the first frequency mixer, 63-first signal source.
Embodiment
For making that the utility model is done further to understand, below with reference to Figure of description and specific embodiment, the utility model is described in further detail:
As shown in Figure 1 to Figure 3, a kind of satellite intermediate frequency chromacoder that is applied to boat-carrying two-way communication antenna, it comprises successively outdoor transducer 4, single channel swivel joint 5 and indoor transducer 6 that connect and can both-way communication, between the input of the output of outdoor transducer 4 and satellite antenna 1, be connected with up-conversion power amplifier 2, the input of outdoor transducer 4 is connected with satellite antenna 1 by tuner 3, and between the communication apparatus 8 such as indoor transducer 6 and computer, phone, modem 7 is connected via satellite.
When enforcement, as a kind of preferred embodiment of the present utility model, the frequency range that satellite antenna 1 is transferred to the downstream signal of the communication apparatus such as computer, phone 8 is 950～2150MHz, the frequency range that the communication apparatus such as computer, phone 8 is transferred to the upward signal of satellite antenna is 950～2150MHz, in the time that communication apparatus 8 upwards transmits upward signal, first carry out upward signal modulation through satellite modem 7, then the uplink signal transmissions after modulation to indoor transducer 6 is carried out to frequency inverted.Particularly, in the preferred embodiment, indoor transducer 6 comprises first signal blender 61, first signal blender 61 is provided with upward signal input, downstream signal output and mixed signal end, between the upward signal input of first signal blender 61 and the upward signal output of satellite modem 7, be provided with upward signal circuit, in the upward signal circuit of this first signal blender 61, be provided with the first frequency mixer 62 of series connection, this first frequency mixer 62 is connected with first signal source 63, the frequency of the signal that export in first signal source 63 is 1200MHz, for mixing with upward signal, through the mixing overlap-add procedure of the first frequency mixer 62, original frequency is at frequency inverted to the 2150～3350MHz of the upward signal of 950～2150MHz range section, then enter first signal blender 61 to outdoor transmission, when passing through first signal blender 61 to outdoor transmission through the upward signal of frequency inverted, also can be with the downstream signal going down that mixes, but satellite modem 7 receives only the frequency within the scope of 950～2150MHz, therefore, do not affect receiving and demodulating downstream signal.The mixed signal end of first signal blender 61 is connected with one end of single channel swivel joint 5, upward signal, downstream signal can transmitted in both directions between indoor transducer 6 and single channel swivel joint 5, between the downstream signal output of first signal blender 61 and the downstream signal input of satellite modem 7, be provided with downstream signal circuit, mix downwards modem 7 via satellite from the downstream signal of tuner 3 and the upward signal of first signal blender 61 and transfer to communication apparatus 8.
At upward signal after indoor transducer 6, upward signal after frequency inverted is transferred to outdoor by coaxial cable and single channel swivel joint 5, upward signal after conversion forms mixed signal together with downstream signal, mixed signal comprises the upward signal that downstream signal that frequency is 950～2150MHz and frequency are 2150～3350MHz, in order to filter out the downstream signal in the mixed signal of upwards transmitting, before being transferred to satellite antenna 1, mixed signal needs to carry out filtering processing and difference frequency computing.Particularly, in this embodiment, the other end of single channel swivel joint 5 is transferred to mixed signal in outdoor transducer 4, to carry out filtering processing and difference frequency computing, outdoor transducer 4 comprises secondary signal blender 41, secondary signal blender 41 is provided with upward signal output, downstream signal input and mixed signal end, between the upward signal output of secondary signal blender 41 and the input of up-conversion power amplifier 2, be provided with upward signal circuit, between the downstream signal input of secondary signal blender 41 and the output of tuner 3, be provided with downstream signal circuit.In the upward signal circuit of secondary signal blender 41, be provided with the second frequency mixer 42 and the filter 43 of series connection, the output of the second frequency mixer 41 is connected with the input of filter 43, the second frequency mixer 41 is connected with secondary signal source 44, the signal frequency that export in secondary signal source 44 is 1200MHz, mixed signal is after transferring in outdoor transducer 4, the signal source of mixed signal and 1200MHz is done difference frequency computing, after difference frequency computing, downstream signal in mixed signal from the frequency inverted of 950～2150MHz below 950MHz, upward signal in mixed signal drops between 950～2150MHz from the frequency of 2150～3350MHz, frequency decline after upward signal and downstream signal more after filtering device 43 carry out filtering processing, filter out the signal of 950MHz with lower frequency, therefore, downstream signal in mixed signal is filtered, uplink signal transmissions is carried out up-conversion and power amplification to up-conversion power amplifier, antenna 1 is transmitted to satellite via satellite, and satellite antenna 1 is given communication apparatus 8 transmission of downlink signal downwards by tuner 3.
More than just as a kind of preferred embodiment of the present utility model, the frequency in first signal source 63 and secondary signal source 44 is not limited to 1200MHz, according to actual user demand, can adopt the signal source of different frequency by two-way or the identical intermediate-freuqncy signal of channelized frequencies scope, being transformed into different frequency bands transmits, after over recovery conversion, normally use, the multichannel intermediate-freuqncy signal that can realize single coaxial cable is multiplexing again.
In sum, the upward signal that this device transmits the communication apparatus such as computer telephone is sent into indoor transducer and is carried out Frequency mixing processing, then carry out difference frequency computing and filtering processing through indoor transducer, filter out the downstream signal in mixed signal, finally to upward signal carry out power amplification and via satellite antenna transmission to satellite, realize and in same cable, transmitted upward signal and downstream signal simultaneously, thereby eliminate the dependence of prior art to Two channels rotating joint and multipassage rotary joint, reduce cost, mutual interference problem when efficiently solving upward signal and downstream signal and transmitting in same cable, cable utilance is high, compatible strong, can completely compatible existing boat-carrying, carry-on-vehicle satellite television antenna and two-way communication antenna, there is very strong applicability and significant realistic meaning.
More than show and described general principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what in above-described embodiment and specification, describe is principle of the present utility model; under the prerequisite that does not depart from the utility model spirit and scope, the utility model also has various changes and modifications; these changes and improvements all fall in claimed scope of the present utility model, and the protection range that the utility model requires is defined by appending claims and equivalent thereof.
Claims (5)
1. one kind is applied to the satellite intermediate frequency chromacoder of boat-carrying two-way communication antenna, it is characterized in that, comprise successively outdoor transducer, single channel swivel joint and indoor transducer that connect and can both-way communication, between the output of described outdoor transducer and the input of satellite antenna, be connected with up-conversion power amplifier, the input of described outdoor transducer is connected with satellite antenna by tuner, and between described indoor transducer and communication apparatus, modem is connected via satellite.
2. a kind of satellite intermediate frequency chromacoder that is applied to boat-carrying two-way communication antenna according to claim 1, it is characterized in that, described indoor transducer comprises first signal blender, described first signal blender is provided with upward signal input, downstream signal output and mixed signal end, between the upward signal input of described first signal blender and the upward signal output of described satellite modem, be provided with upward signal circuit, between the downstream signal output of described first signal blender and the downstream signal input of described satellite modem, be provided with downstream signal circuit.
3. a kind of satellite intermediate frequency chromacoder that is applied to boat-carrying two-way communication antenna according to claim 2, it is characterized in that, in the upward signal circuit of described first signal blender, be provided with the first frequency mixer of series connection, described the first frequency mixer is connected with first signal source, and the mixed signal end of described first signal blender is connected with one end of described single channel swivel joint.
4. a kind of satellite intermediate frequency chromacoder that is applied to boat-carrying two-way communication antenna according to claim 1, it is characterized in that, described outdoor transducer comprises secondary signal blender, described secondary signal blender is provided with upward signal output, downstream signal input and mixed signal end, between the upward signal output of described secondary signal blender and the input of described up-conversion power amplifier, be provided with upward signal circuit, between the downstream signal input of described secondary signal blender and the output of described tuner, be provided with downstream signal circuit.
5. a kind of satellite intermediate frequency chromacoder that is applied to boat-carrying two-way communication antenna according to claim 4, it is characterized in that, in the upward signal circuit of described secondary signal blender, be provided with the second frequency mixer and the filter of series connection, the output of described the second frequency mixer is connected with the input of described filter, described the second frequency mixer is connected with secondary signal source, and the mixed signal end of described the second frequency mixer is connected with the other end of described single channel swivel joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320802772.8U CN203661057U (en) | 2013-12-06 | 2013-12-06 | Satellite intermediate frequency signal conversion device applied to shipborne two-way communication antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320802772.8U CN203661057U (en) | 2013-12-06 | 2013-12-06 | Satellite intermediate frequency signal conversion device applied to shipborne two-way communication antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203661057U true CN203661057U (en) | 2014-06-18 |
Family
ID=50927405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320802772.8U Expired - Lifetime CN203661057U (en) | 2013-12-06 | 2013-12-06 | Satellite intermediate frequency signal conversion device applied to shipborne two-way communication antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203661057U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103684520A (en) * | 2013-12-06 | 2014-03-26 | 浙江中星光电子科技有限公司 | Satellite intermediate frequency signal conversion device applied to on-board two-way communication antenna |
-
2013
- 2013-12-06 CN CN201320802772.8U patent/CN203661057U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103684520A (en) * | 2013-12-06 | 2014-03-26 | 浙江中星光电子科技有限公司 | Satellite intermediate frequency signal conversion device applied to on-board two-way communication antenna |
| CN103684520B (en) * | 2013-12-06 | 2016-08-17 | 浙江中星光电子科技有限公司 | A kind of satellite intermediate frequency chromacoder being applied to boat-carrying two-way communication antenna |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2015070782A1 (en) | Indoor distribution system, local unit and remote unit | |
| CN103684520A (en) | Satellite intermediate frequency signal conversion device applied to on-board two-way communication antenna | |
| CN101374285B (en) | Operation method for base station common transmit-receive transmission system | |
| CN104333737A (en) | Near-distance 2-5 M bandwidth simulative wireless picture transmission system and signal processing method | |
| CN101146071A (en) | Bidirectional signal transmission device and method | |
| CN201975490U (en) | Ultra-wide band CATV signal combiner | |
| CN104160635A (en) | Transmission/reception of microwave signals broadcast by a satellite with an interactive return channel using a spectral broadening protocol | |
| CN103747447A (en) | Radio modem and power TD-LTE private network common antenna system and implementation method thereof | |
| CN103684519B (en) | A kind of satellite intermediate frequency chromacoder being applied to boat-carrying satellite tv antenna | |
| CN203661057U (en) | Satellite intermediate frequency signal conversion device applied to shipborne two-way communication antenna | |
| CN203661056U (en) | Satellite intermediate frequency signal conversion apparatus applied to shipborne satellite television antenna | |
| US20040183725A1 (en) | Information network building method and network connection circuit | |
| CN1905682A (en) | Apparatus for duplex transmitting speech and data in video baseband transmission line | |
| CN202085165U (en) | Ku-band satellite tuner | |
| CN202196843U (en) | Multiplexer multi-system module | |
| Hayashi et al. | Millimeter-wave impulse radio technology | |
| CN101601289B (en) | Bidirectional signal transmission apparatus and method | |
| CN202143089U (en) | EOC device with branch distribution function | |
| CN201594574U (en) | Multiplexer multi-system module | |
| CN201036250Y (en) | Digital multimedia broadcast receiving device capable of embedded in mobile equipment | |
| CN2798427Y (en) | Apparatus for realizing broadband wireless access by wired TV coaxial cable | |
| CN204793178U (en) | External antenna , WOC device and signal transmission system | |
| CN202059583U (en) | Ku-wave band frequency shift remote microwave transmission system | |
| CN201690449U (en) | Multi-system module applied in mobile communication system | |
| CN103269428A (en) | Satellite audio-visual receiving system based on KU wave band and satellite tuner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |
|
| CX01 | Expiry of patent term |