CN115842616B - Synchronous communication system of broadband receiver and transmitter for remote communication - Google Patents
Synchronous communication system of broadband receiver and transmitter for remote communication Download PDFInfo
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- CN115842616B CN115842616B CN202310168910.XA CN202310168910A CN115842616B CN 115842616 B CN115842616 B CN 115842616B CN 202310168910 A CN202310168910 A CN 202310168910A CN 115842616 B CN115842616 B CN 115842616B
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention relates to the technical field of remote communication, and discloses a synchronous communication system of a broadband receiver and a transmitter for remote communication. The invention solves the problems of the prior art that the frequency synchronization and the phase synchronization of the long-distance broadband receiver-transmitter are realized, the system structure is complex, the power consumption is higher, and the like.
Description
Technical Field
The invention relates to the technical field of remote communication, in particular to a synchronous communication system of a broadband receiver and a transmitter for remote communication.
Background
In the case of a receiver and a transmitter which are far apart, it is necessary to ensure frequency synchronization and phase synchronization of the received transmission signal. The frequency synchronization needs to ensure the complete co-reference of the reference signal, and the phase synchronization needs to ensure the phase synchronization of the frequency hopping local oscillator.
At present, remote reference co-referencing is realized, and a high-precision 1pps second pulse signal issued by a satellite-borne atomic clock can be used as a reference signal.
By adopting a direct frequency synthesis mode, the narrow-band phase synchronous local oscillation signal can be realized, and then the phase synchronization of a receiver and a transmitter is ensured.
The wideband receiver and transmitter need to use wideband local oscillation signals, and the conventional direct frequency synthesis mode is adopted, so that the wideband synchronous local oscillation signals are difficult to realize, and the system has complex structure and higher power consumption.
Therefore, how to achieve frequency synchronization and phase synchronization of a long-range wideband receiver-transmitter is a technical problem that needs to be solved.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a synchronous communication system of a broadband receiver and a transmitter for remote communication, which solves the problems of the prior art that the frequency synchronization and the phase synchronization of the long-distance broadband receiver-transmitter are realized, the system structure is complex, the power consumption is higher, and the like.
The invention solves the problems by adopting the following technical scheme:
a synchronous communication system of a broadband receiver and a transmitter for remote communication comprises the transmitter, a first phase synchronous local vibration source, a constant-temperature crystal oscillator, a first optical module, an optical fiber, a second optical module, a phase-locked crystal oscillator, a second phase synchronous local vibration source and a receiver which are connected in sequence in a communication mode.
As a preferable technical scheme, the input end of the first phase synchronization local vibration source is connected with the first signal output end of the constant-temperature crystal oscillator, and the output end of the first phase synchronization local vibration source is connected with the input end of the transmitter; the input end of the first optical module is connected with the second signal output end of the constant-temperature crystal oscillator, and the output end of the first optical module is connected with the input end of the optical fiber; the input end of the second optical module is connected with the output end of the optical fiber, and the output end of the second optical module is connected with the input end of the phase-locked crystal oscillator; the input end of the second phase synchronous local vibration source is connected with the output end of the phase-locked crystal oscillator, and the output end of the second phase synchronous local vibration source is connected with the input end of the receiver.
As a preferable technical scheme, the first signal output end of the constant-temperature crystal oscillator provides a reference signal for a first phase synchronization local oscillation source, and the first phase synchronization local oscillation source performs frequency synthesis on the input reference signal and generates a local oscillation signal required by a transmitter.
As a preferable technical scheme, the first phase synchronous local oscillation source outputs local oscillation signals to the transmitter, so as to realize the broadband up-conversion function of the transmitter.
As a preferable technical scheme, the phase-locked crystal oscillator synchronizes the electric signal output by the second optical module to the output of the phase-locked crystal oscillator, so that the reference co-reference of the receiver and the transmitter is ensured.
As a preferred technical scheme, the output end of the phase-locked crystal oscillator provides a reference signal for a second phase synchronization local oscillation source, and the second phase synchronization local oscillation source performs frequency synthesis on the input reference signal to generate a local oscillation signal required by a receiver.
As a preferable technical scheme, the second phase synchronous local oscillation source outputs local oscillation signals to the receiver, so as to realize the broadband down-conversion function of the receiver.
As a preferable technical scheme, the first phase synchronous local oscillation source and the second phase synchronous local oscillation source respectively output three local oscillation signals; the two local oscillation signals are point frequency signals, and the other local oscillation signal is a broadband frequency hopping signal.
As a preferable technical scheme, the local oscillator generates a frequency hopping signal by using a phase resynchronisation phase-locked loop, and generates a broadband frequency hopping signal after mixing and switching filtering.
As a preferred technical solution, the control circuit clock of the first phase synchronous local vibration source is synchronous with the external reference signal, and the control circuit clock of the second phase synchronous local vibration source is synchronous with the external reference signal.
Compared with the prior art, the invention has the following beneficial effects:
(1) The invention can realize the broadband synchronous local oscillation signal, and the system has simple structure and lower power consumption;
(2) The invention can solve the synchronization problem of the double-station radar system;
(3) The invention can also construct a 5G communication synchronous networking architecture.
Drawings
Fig. 1 is a schematic diagram of a synchronous communication system of a wideband receiver and a transmitter for remote communication according to the present invention.
The reference numerals and corresponding part names in the drawings: 1. the transmitter, 2, the synchronous this vibration source of first phase place, 3, constant temperature crystal oscillator, 4, first optical module, 5, optic fibre, 6, second optical module, 7, phase lock crystal oscillator, 8, the synchronous this vibration source of second phase place, 9, receiver.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but embodiments of the present invention are not limited thereto.
Example 1
As shown in fig. 1, the main purpose of the present invention is to solve the technical problems that it is difficult to realize wideband synchronization of local oscillation signals, and the system structure is complex and the power consumption is high in the prior art.
To achieve the above object, the present invention provides a remote wideband receiver transmitter synchronization technology based on optical fiber communication and phase resynchronization phase locked loop, in particular a wideband receiver and transmitter synchronization communication system for remote communication, comprising: the device comprises a constant-temperature crystal oscillator 3, a first phase synchronous local oscillation source 2, a transmitter 1, a first optical module 4, an optical fiber 5, a second optical module 6, a phase-locked crystal oscillator 7, a second phase synchronous local oscillation source 8 and a receiver 9; the first signal output end of the constant-temperature crystal oscillator 3 is connected with the input end of the first phase synchronization local vibration source 2, the output end of the first phase synchronization local vibration source 2 is connected with the input end of the transmitter 1, the second signal output end of the constant-temperature crystal oscillator 3 is connected with the input end of the first optical module 4, the output end of the first optical module 4 is connected with the input end of the optical fiber 5, the output end of the optical fiber 5 is connected with the input end of the second optical module 6, the output end of the second optical module 6 is connected with the input end of the phase-locked crystal oscillator 7, the output end of the phase-locked crystal oscillator 7 is connected with the input end of the second phase synchronization local vibration source 8, and the output end of the second phase synchronization local vibration source 8 is connected with the input end of the receiver 9; wherein:
preferably, the first signal output end of the constant-temperature crystal oscillator 3 provides a reference signal for the first phase synchronization local oscillation source 2, the first phase synchronization local oscillation source 2 performs frequency synthesis on the input reference signal to generate a local oscillation signal required by the transmitter 1, wherein the broadband frequency hopping signal is realized by a phase-locked loop with a phase resynchronization function, and other point frequency local oscillation signals can be directly phase-locked;
preferably, the first phase synchronous local oscillation source 2 outputs a local oscillation signal to the transmitter 1, so as to realize a wideband up-conversion function of the transmitter 1.
Preferably, the second signal output end of the constant temperature crystal oscillator 3 is connected with an optical module, and the optical module converts the reference signal into an optical signal; the optical signal is remotely transmitted to the second optical module 6 through the optical fiber 5; the second optical module 6 converts the received optical signal into an electrical signal;
preferably, the phase-locked crystal oscillator 7 synchronizes the electric signal output by the second optical module 6 to the output of the phase-locked crystal oscillator 7, so as to ensure that the references of the receiver 9 and the transmitter 1 are completely identical;
preferably, the output end of the phase-locked crystal oscillator 7 provides a reference signal for the second phase-locked local oscillator 8, the second phase-locked local oscillator 8 performs frequency synthesis on the input reference signal to generate a local oscillator signal required by the receiver 9, wherein the broadband frequency hopping signal is realized by a phase-locked loop with a phase resynchronization function, and other point-frequency local oscillator signals can be directly phase-locked;
preferably, the second phase synchronous local oscillation source 8 outputs a local oscillation signal to the receiver 9, so as to realize the broadband down-conversion function of the receiver 9.
Preferably, the frequency implementation modes of the receiver 9 and the transmitter 1 are opposite, and the frequency points of the local oscillation signals are completely consistent;
preferably, the circuits and the frequency hopping algorithms of the first phase synchronous local vibration source 2 and the second phase synchronous local vibration source 8 are completely consistent. And 3 paths of local oscillation signals are output, wherein the local oscillation 2 and the local oscillation 3 are point frequency signals, and the local oscillation 1 is a broadband frequency hopping signal.
Preferably, the local oscillator 1 uses a phase resynchronisation phase-locked loop to realize a frequency hopping signal, and the frequency hopping signal is subjected to frequency mixing and switch filtering to realize a broadband frequency hopping signal.
Preferably, the control circuit clocks of the first phase synchronous local oscillation source 2 and the second phase synchronous local oscillation source 8 need to be synchronized with an external reference signal.
In the invention, the remote receiver 9 and the transmitter 1 are co-referenced by the constant temperature crystal oscillator 3, the optical module, the optical fiber 5 circuit and the phase-locked crystal oscillator 7. Generating 3 paths of local oscillation signals required by a receiver 9 and a transmitter 1 through a phase synchronous local oscillation source, wherein the local oscillation 2 and the local oscillation 3 are point frequency signals; the local oscillator 1 uses a phase resynchronisation phase-locked loop to realize the frequency hopping signal, and the broadband frequency hopping signal is realized after frequency mixing and switch filtering. The frequency implementation mode of the receiver 9 is the same as that of the transmitter 1, and the frequency points of the local oscillation signals are completely consistent.
The invention adopts the technology of optical fiber 5 communication and phase resynchronization phase-locked loop on the basis of the common receiving transmitter 1, and aims to solve the technical problems that the broadband synchronous local oscillation signal is difficult to realize, the system structure is complex and the power consumption is higher in the prior art.
As described above, the present invention can be preferably implemented.
All of the features disclosed in all of the embodiments of this specification, or all of the steps in any method or process disclosed implicitly, except for the mutually exclusive features and/or steps, may be combined and/or expanded and substituted in any way.
The foregoing description of the preferred embodiment of the invention is not intended to limit the invention in any way, but rather to cover all modifications, equivalents, improvements and alternatives falling within the spirit and principles of the invention.
Claims (2)
1. The synchronous communication system of the broadband receiver and the transmitter for remote communication is characterized by comprising a transmitter (1), a first phase synchronous local vibration source (2), a constant-temperature crystal oscillator (3), a first optical module (4), an optical fiber (5), a second optical module (6), a phase-locked crystal oscillator (7), a second phase synchronous local vibration source (8) and a receiver (9) which are in communication connection in sequence;
the input end of the first phase synchronization local vibration source (2) is connected with the first signal output end of the constant-temperature crystal oscillator (3), and the output end of the first phase synchronization local vibration source (2) is connected with the input end of the transmitter (1); the input end of the first optical module (4) is connected with the second signal output end of the constant-temperature crystal oscillator (3), and the output end of the first optical module (4) is connected with the input end of the optical fiber (5); the input end of the second optical module (6) is connected with the output end of the optical fiber (5), and the output end of the second optical module (6) is connected with the input end of the phase-locked crystal oscillator (7); the input end of the second phase synchronous local vibration source (8) is connected with the output end of the phase-locked crystal oscillator (7), and the output end of the second phase synchronous local vibration source (8) is connected with the input end of the receiver (9);
the first signal output end of the constant-temperature crystal oscillator (3) provides a reference signal for the first phase synchronization local oscillation source (2), and the first phase synchronization local oscillation source (2) performs frequency synthesis on the input reference signal to generate a local oscillation signal required by the transmitter (1);
the first phase synchronous local oscillation source (2) outputs local oscillation signals to the transmitter (1) to realize the broadband up-conversion function of the transmitter (1);
the phase-locked crystal oscillator (7) synchronizes the electric signal output by the second optical module (6) to the phase-locked crystal oscillator (7) for output, so that the reference co-reference of the receiver (9) and the transmitter (1) is ensured;
the output end of the phase-locked crystal oscillator (7) provides a reference signal for a second phase synchronous local oscillation source (8), and the second phase synchronous local oscillation source (8) performs frequency synthesis on the input reference signal to generate a local oscillation signal required by a receiver (9);
the second phase synchronous local oscillation source (8) outputs local oscillation signals to the receiver (9) to realize the broadband down-conversion function of the receiver (9);
the first phase synchronous local oscillation source (2) and the second phase synchronous local oscillation source (8) respectively output three local oscillation signals; wherein, two local oscillation signals are point frequency signals, and the other local oscillation signal is broadband frequency hopping signal; the other local oscillation signal uses a phase resynchronous phase-locked loop to generate a frequency hopping signal, and the frequency hopping signal is generated after frequency mixing and switch filtering.
2. A wideband receiver and transmitter synchronous communication system for telecommunications according to claim 1, characterized in that the control circuit clock of the first phase synchronous local vibration source (2) is synchronized with an external reference signal and the control circuit clock of the second phase synchronous local vibration source (8) is synchronized with an external reference signal.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429451A (en) * | 2019-07-11 | 2019-11-08 | 北京大学 | A kind of mode mode hopping suppressing method and system for optical-electronic oscillator |
| CN111404544A (en) * | 2020-03-27 | 2020-07-10 | 南京宽超通信技术有限公司 | Internal and external reference signal self-adaptive Ku-band low-phase noise frequency source |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0229763D0 (en) * | 2002-12-23 | 2003-01-29 | Renishaw Plc | Signal transmission system for a trigger probe |
| CN1874206B (en) * | 2006-06-16 | 2010-04-14 | 京信通信技术(广州)有限公司 | Implementation method by using digital picked clocking as analog reference source |
| CN201503494U (en) * | 2009-09-28 | 2010-06-09 | 武汉大学 | Multi-base radar synchronizing device |
| CN101895321B (en) * | 2010-07-30 | 2013-02-06 | 重庆金美通信有限责任公司 | Method for pre-correcting frequency offset of radio frequency in MIMO (Multiple Input Multiple Output) wireless communication system |
| CN102223340B (en) * | 2011-06-20 | 2013-12-11 | 电子科技大学 | Terabit transmission rate coherent light orthogonal frequency division multiplexing (OFDM) system based on optical comb |
| US9979408B2 (en) * | 2016-05-05 | 2018-05-22 | Analog Devices, Inc. | Apparatus and methods for phase synchronization of phase-locked loops |
| EP3316508A1 (en) * | 2016-10-27 | 2018-05-02 | Fraunhofer Gesellschaft zur Förderung der Angewand | Receiver and method for providing a phase coherency for frequency hopping multitone signals |
| CN107181477B (en) * | 2017-05-11 | 2020-07-03 | 清华大学深圳研究生院 | Novel frequency generator |
| CN113678377A (en) * | 2019-05-31 | 2021-11-19 | 华为技术有限公司 | Phase synchronization device, phase synchronization system and transceiver |
| CN112367120B (en) * | 2020-10-23 | 2023-06-02 | 西北工业大学 | Microwave local vibration source double frequency optical fiber stable phase transmission system |
| CN213846651U (en) * | 2020-12-10 | 2021-07-30 | 重庆邮电大学 | Miniaturized up-conversion and radio frequency front-end system of digital broadcast transmitter |
| CN113064124B (en) * | 2021-03-12 | 2022-04-01 | 广州辰创科技发展有限公司 | Signal synchronization assembly for remote radar detection system |
| CN218006233U (en) * | 2022-05-25 | 2022-12-09 | 南京震冠电子科技有限公司 | Eight-channel amplitude-phase consistent superheterodyne receiver |
-
2023
- 2023-02-27 CN CN202310168910.XA patent/CN115842616B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429451A (en) * | 2019-07-11 | 2019-11-08 | 北京大学 | A kind of mode mode hopping suppressing method and system for optical-electronic oscillator |
| CN111404544A (en) * | 2020-03-27 | 2020-07-10 | 南京宽超通信技术有限公司 | Internal and external reference signal self-adaptive Ku-band low-phase noise frequency source |
Non-Patent Citations (1)
| Title |
|---|
| 一种大型分布式阵列雷达频率与相位同步;方立军;马骏;柳勇;吉宗海;张焱;郭雪锋;;雷达科学与技术(01);全文 * |
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