CN105119647B - A kind of implementation method for mixing flexible transponder - Google Patents

A kind of implementation method for mixing flexible transponder Download PDF

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Publication number
CN105119647B
CN105119647B CN201510398487.8A CN201510398487A CN105119647B CN 105119647 B CN105119647 B CN 105119647B CN 201510398487 A CN201510398487 A CN 201510398487A CN 105119647 B CN105119647 B CN 105119647B
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China
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signal
roads
group
forwarding
radiofrequency signal
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CN201510398487.8A
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Chinese (zh)
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CN105119647A (en
Inventor
李辉
吕强
张春晖
张梦瑶
岳田
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中国电子科技集团公司第五十四研究所
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWN ENERGY USE
    • Y02D70/00Techniques for reducing energy consumption in wireless communication networks
    • Y02D70/40According to the transmission technology
    • Y02D70/46Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication

Abstract

The invention discloses a kind of implementation method for mixing flexible transponder, the full light frequency conversion of the communications field and all-optical switching technique and the technologies such as non-homogeneous channelizing and circuit switching are related generally to.The advantages that realization structure of the present invention is mainly forwarded by microwave photon forwards two parts to form with Digital Microwave flexibility, and microwave photon forwarding makes full use of photonic propulsion broadband, high speed, low-power consumption is, it can be achieved that the transparent forwarding of big particle size variable bandwidth;The forwarding of Digital Microwave flexibility is as auxiliary, it can be achieved that the bandwidth varying transparent forwarding and processing forward of middle small grain size, two parts are jointly controlled by spaceborne control device, it can be achieved that multi-beam, the flexible forwarding of different grain size bandwidth signal.Meanwhile mix flexible transponder and multi-path digital interface is also externally provided, spaceborne packet switch processing load can be connected.The present invention has many advantages, such as that implementation complexity is low, supports reconfigurable design and multi-mode forwarding, and microwave photon forwarding forwards two parts also can independently to use with Digital Microwave flexibility.

Description

A kind of implementation method for mixing flexible transponder

Technical field

The present invention relates to the communications fields, more particularly, to a kind of implementation method for mixing flexible transponder, are particularly suitable for branch Support multi-beam, the application demand of multi-functional, restructural Utility Satellite transponder.

Background technology

The technological approaches exchanged is forwarded mainly to have based on star currently used for information between realizing multi-beam satellite load wave beam On the packet switch, the microwave Inverse problem based on transparent forwarding on star and the both the above mode that handle entirely be combined based on star The Digital Microwave forwarding of top office reason exchanges.

Microwave Inverse problem technology based on transparent forwarding on star realizes the transparent forwarding of satellite, and satellite is not believed user It number being handled, signal format and content are unrelated with transponder, therefore there is no the dependence to signal modulation and coding mode, With stronger adaptability and flexibility.However, due on star microwave switching matrix be all Hard link, Route Selection mode is It is fixed, can not adapt to the variation of portfolio in this way, it is difficult to meet the requirement of sudden strong Internet applications. Moreover, microwave matrix-style may be excessive due to volume weight, isolation is realized difficult and is difficult to obtain satisfied performance.Together When, under which the exchange of signal realize that it is usually one to exchange bandwidth by analog filter and intermediate frequency switching matrix The bandwidth of a transponder, such as 36MHz, 54MHz or 72MHz or even carried out as unit of wave beam.If carry out finer grain Exchange, then the complexity of switching matrix can significantly improve, often have exceeded the exchange capacity of microwave switching matrix.

Satellite repeater is then needed to carry out signal down coversion, demodulation, decoding based on the packet-switch technology handled entirely on star Work are waited, the signal received is reverted into baseband signal, then baseband signal is handled through swapping, recompile later, Modulation, up-conversion, finally launch signal.Compared to the microwave Inverse problem technology of transparent forwarding, this mode can Tolerate higher interference level, simplify earth station design, reduce user cost, improve the power resource utilization rate and system of system Capacity.Its cost is the increase in the complexity on star, and has dependence to physical layer, can also make satellite quality and load Lotus power consumption is significantly increased.Meanwhile the transformat and service type of system are fixed, it is impossible to adaptive technique standard or communication protocol Update, flexibility is poor, and the extension of application and new business to new technology can cause difficulty.Moreover, in the more situation of wave beam Under, block exchange mode may be because that signal processing is excessively complicated, can not realize.

In short, the main problem that satellite repeater faces at present is that weight is heavy, volume is big, system flexibility is poor, system work( Consumption is big, and transponder capacity is difficult in adapt to the growth of demand and demblee form business, and adaptability and autgmentability are inadequate.

Invention content

Problem to be solved by this invention is existing for the current satellite repeater for avoiding mentioning in above-mentioned background technology Shortcoming and provide a kind of mixing flexible transponder implementation method.The present invention has that low in energy consumption, flexibility is strong, implementation complexity The advantages that low, support reconfigurable design and multi-mode forward is, it can be achieved that multi-beam, the flexible forwarding of different grain size bandwidth signal.

The object of the present invention is achieved like this, and a kind of implementation method for mixing flexible transponder includes the following steps:

1. the N roads radiofrequency signal of different frequency range is forwarded through microwave photon, complete to the big granularity bandwidth in the radiofrequency signal of N roads Radiofrequency signal correspond to and exchange and obtain M roads intermediate-freuqncy signal;The M roads intermediate-freuqncy signal is by first group of identical N roads intermediate frequency letter Number and second group of N roads intermediate-freuqncy signals composition;The N and M is natural number, and M=2*N;

2. first group of N roads intermediate-freuqncy signal is subjected to frequency up-converted as first group of N roads radiofrequency signal respectively;By second group of N Road intermediate-freuqncy signal carries out analog to digital conversion and obtains L railway digital baseband signals respectively, to not needing to locate in L railway digital baseband signals The digital baseband signal for managing the middle granularity bandwidth of forwarding corresponds to the laggard line number modular transformation of exchange, then become L roads by upconverter Radiofrequency signal;To needing the digital baseband signal for the medium and small granularity bandwidth for carrying out processing forward in L railway digital baseband signals through comprehensive It closes and is demodulated after restoring, the signal after demodulation is grouped exchange, the signal after packet switch is modulated and is transformed to Intermediate-freuqncy signal is converted to L roads radiofrequency signal using upconverter;Every P roads signal of L roads radiofrequency signal is become by combiner For radiofrequency signal all the way, second group of N roads radiofrequency signal is obtained;The L and P is natural number, L=P*N;

3. by every signal all the way of first group of N roads radiofrequency signal and the correspondence road signal difference of second group of N roads radiofrequency signal N roads radiofrequency signal is exported after combiner;

Complete the realization of the flexible transponder of mixing.

Wherein, step 1. described in microwave photon forwarding include electro-optic conversion, light exchange and opto-electronic conversion.

Wherein, the big granularity, middle granularity and small grain size bandwidth signal are distinguished according to spaceborne control agent information.

The present invention has the following advantages over the background art:

(1) present invention has carried out microwave photon transformation using merging with the forwarding of Digital Microwave flexibility, taken into account to greatly, The forwarding of middle or small different grain size bandwidth, the characteristics of taking full advantage of microwave photon broadband, high speed, low-power consumption and Digital Microwave The flexibility of flexibility forwarding.

(2) present invention is merged transparent forwarding with processing forward, and taking the mode of hardware resource sharing reduces reality Existing complexity, while hardware and control cooperate with reconfigurable design with supporting star, the cured weakness of Weakening treatment retransmission process increases Multi-mode is supported, enhances its flexibility.

(3) present invention to microwave photon transformation and the forwarding of Digital Microwave flexibility integrated jointly control, and carry Go out control strategy so that two technologies become the entirety with interaction relation from individual individual, so as in adaptability of technology side Face has very big flexibility.

(4) 4 4*1 array waveguide gratings and 1 support cycle have been used in microwave photon converter technique of the invention The 4*4 array waveguide gratings (as shown in Figure 2) of displacement, to simplify, ground structure is ingenious to realize the frequency conversion simultaneously of multichannel multi-band signal And it is exported without aliasing non-blocking cross.

(5) AWG is innovatively employed in microwave photon switching technology of the invention with technology that WSS is combined to design It realizes ROADM signal exchanges, not only saves space, but also have the characteristics that at low cost, configuration is flexible.

Description of the drawings

Fig. 1 is the electrical schematic block diagram of the embodiment of the present invention.Fig. 1 forwards two by microwave photon forwarding and Digital Microwave flexibility Part forms.

Fig. 2 is the realization principle block diagram of microwave photon forwarding of the present invention.

Fig. 3 is the realization principle block diagram of Digital Microwave forwarding of the present invention.

Specific embodiment

Referring to figs. 1 to Fig. 3, the present invention is described in further details.Fig. 1 is the electric principle box of the embodiment of the present invention Figure, it is mainly forwarded by microwave photon, the forwarding of Digital Microwave flexibility, packet switch, spaceborne control agent, upconverter and conjunction Road device composition.

A kind of implementation method for mixing flexible transponder, including step:

1. the signal of wave beam 1 to wave beam 4 is forwarded through microwave photon, the radiofrequency signal correspondence to wherein big granularity bandwidth is completed It exchanges and obtains intermediate-freuqncy signal 1 to intermediate-freuqncy signal 8;The 8 tunnel intermediate-freuqncy signals are made of two groups of 4 identical tunnel intermediate-freuqncy signals;

The microwave photon forwarding principle is as shown in Fig. 2, specifically include electro-optic conversion, light exchanges and opto-electronic conversion;

2. intermediate-freuqncy signal 1 to intermediate-freuqncy signal 4 is subjected to frequency up-converted as first group of 4 tunnel radiofrequency signal respectively, i.e. radio frequency Signal 1 arrives radiofrequency signal 4;Intermediate-freuqncy signal 5 to intermediate-freuqncy signal 8 is carried out to analog to digital conversion respectively and obtains 16 railway digital baseband signals, The digital baseband signal of middle granularity bandwidth in 16 railway digital baseband signals is corresponded to and exchanges laggard line number modular transformation, then by upper Frequency converter becomes 16 tunnel radiofrequency signals;To needing the medium and small granularity bandwidth digital of progress processing forward in 16 railway digital baseband signals Baseband signal is demodulated after comprehensive restore, and the signal after demodulation is grouped exchange, by the signal after packet switch into Row modulating transformation is intermediate-freuqncy signal, and 16 tunnel radiofrequency signals are converted to using upconverter;Every 4 road of 16 tunnel radiofrequency signals is believed Number radiofrequency signal all the way is become by combiner, obtain second group of 4 tunnel radiofrequency signal, is i.e. radiofrequency signal 1 arrives radiofrequency signal 4;

3. by the radiofrequency signal 1 in first group of 4 tunnel radiofrequency signal to radiofrequency signal 4 respectively with second group of 4 tunnel radiofrequency signal Corresponding road signal exports 4 road beam signals after combiner respectively.

Claims (3)

1. a kind of implementation method for mixing flexible transponder, it is characterised in that include the following steps:
1. the N roads radiofrequency signal of different frequency range is forwarded through microwave photon, penetrating to the big granularity bandwidth in the radiofrequency signal of N roads is completed Frequency signal, which corresponds to, exchanges and obtains M roads intermediate-freuqncy signal;The M roads intermediate-freuqncy signal by first group of identical N roads intermediate-freuqncy signal and Second group of N roads intermediate-freuqncy signal composition;The N and M is natural number, and M=2*N;
2. first group of N roads intermediate-freuqncy signal is subjected to frequency up-converted as first group of N roads radiofrequency signal respectively;It will be in second group of N road Frequency signal carries out analog to digital conversion and obtains L railway digital baseband signals respectively, to not needing to carry out processing turn in L railway digital baseband signals The digital baseband signal of the middle granularity bandwidth of hair, which corresponds to, exchanges laggard line number modular transformation, then obtain first group of L by upconverter Road radiofrequency signal;The digital baseband signal that the medium and small granularity bandwidth for carrying out processing forward is needed in L railway digital baseband signals is passed through It is demodulated after comprehensive recovery, the signal after demodulation is grouped exchange, the signal after packet switch is modulated transformation For intermediate-freuqncy signal, second group of L roads radiofrequency signal is converted to using upconverter;By first group of L roads radiofrequency signal and second group of L Road radiofrequency signal is corresponding to become radiofrequency signal all the way per P roads signal by combiner, obtains second group of N roads radiofrequency signal;Institute The L and P stated is natural number, L=P*N;
3. by first group of N roads radiofrequency signal per signal and the correspondence road signal of second group of N roads radiofrequency signal pass through respectively all the way N roads radiofrequency signal is exported after combiner;
Complete the realization of the flexible transponder of mixing.
2. a kind of implementation method for mixing flexible transponder according to claim 1, it is characterised in that:Step 1. described in Microwave photon forwarding include electro-optic conversion, light exchange and opto-electronic conversion.
3. a kind of implementation method for mixing flexible transponder according to claim 1, it is characterised in that:The big grain Degree, middle granularity and small grain size bandwidth signal are distinguished according to spaceborne control agent information.
CN201510398487.8A 2015-07-08 2015-07-08 A kind of implementation method for mixing flexible transponder CN105119647B (en)

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CN105790880A (en) * 2016-03-01 2016-07-20 中国电子科技集团公司第五十四研究所 Radio frequency exchange method based on microwave photon technology
CN105827305B (en) * 2016-04-15 2018-10-09 中国电子科技集团公司第五十四研究所 The transparent reconfigurable flexible being combined with processing forwards implementation method

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US6134437A (en) * 1997-06-13 2000-10-17 Ericsson Inc. Dual-mode satellite/cellular phone architecture with physically separable mode
EP1875677B1 (en) * 2005-04-29 2017-06-14 Telefonaktiebolaget LM Ericsson (publ) Method and system for controlling real time contiguous data in a packet switched data stream
US9496982B2 (en) * 2011-03-04 2016-11-15 Alcatel Lucent System and method providing resilient data transmission via spectral fragments
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