CN116527113A - Multi-band satellite measurement and control system and method - Google Patents
Multi-band satellite measurement and control system and method Download PDFInfo
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- CN116527113A CN116527113A CN202310543257.0A CN202310543257A CN116527113A CN 116527113 A CN116527113 A CN 116527113A CN 202310543257 A CN202310543257 A CN 202310543257A CN 116527113 A CN116527113 A CN 116527113A
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- 238000005259 measurement Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims description 17
- 238000004891 communication Methods 0.000 claims abstract description 43
- 230000005540 biological transmission Effects 0.000 claims abstract description 40
- 230000008054 signal transmission Effects 0.000 claims abstract description 14
- 230000003247 decreasing effect Effects 0.000 claims description 6
- 230000002194 synthesizing effect Effects 0.000 claims description 4
- 238000012966 insertion method Methods 0.000 claims description 3
- 238000001228 spectrum Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000739 chaotic effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18519—Operations control, administration or maintenance
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
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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
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Radio Relay Systems (AREA)
Abstract
The invention discloses a multi-band satellite measurement and control system, which comprises a relay satellite, a relay satellite and a satellite signal transmission system, wherein the relay satellite is used for receiving and forwarding multi-band satellite signals; the ground transmitting station is in communication connection with the relay satellite, the ground receiving station is in communication connection with the relay satellite, and the multi-band satellite signal frequency combining unit is in communication connection with the ground transmitting station and is used for combining a plurality of single-band satellite signals into a multi-band satellite signal; the multi-band satellite signal frequency-splitting unit is used for splitting the multi-band satellite signal into a plurality of single-band satellite signals with different frequencies; the satellite signal noise-increasing unit is used for carrying out noise-increasing encryption on transmission data of the single-band satellite signals; the satellite signal denoising unit is used for denoising and decrypting the transmission data of the single-band satellite signal; the multi-band lifting noise storage database is used for providing a password character string for lifting noise and denoising in the transmission data of the satellite signals. According to the invention, the confidentiality of core data information of satellite signal transmission is improved by noise rise, encryption and frequency combination of a plurality of single-band satellite signals, so that intercepted satellite signals are ensured to be difficult to crack.
Description
Technical Field
The invention belongs to the field of satellite measurement and control communication, and particularly relates to a multi-band satellite measurement and control system and method.
Background
With the development of satellite microwave communication technology, the forwarding capability of satellite communication signals is increasingly required. Particularly, the future broadband communication satellite system has the outstanding characteristics that a large number of multi-beam radio frequency antennas are mounted, and the satellite microwave communication forwarding technology is limited by capacity, speed, electromagnetic interference and the like and cannot meet the actual requirements.
In the Chinese patent with the patent number of CN201310349986.9, an application method of a satellite-borne S-band relay user terminal system based on a spread spectrum system is disclosed, and comprises the following steps: step 1, determining a spread spectrum system adopted by a measurement and control transponder according to satellite measurement and control requirements, and further determining the number of forward measurement and control channels and backward measurement and control channels according to the determined spread spectrum system; step 2, designing a relay measurement and control link according to the relay satellite operation orbit and relay measurement and control channel indexes, determining the beam width and gain requirements of a relay measurement and control antenna of the relay measurement and control link, and selecting an S receiving antenna and an S transmitting antenna of a proper pattern; step 3, according to the gain design result of the relay measurement and control link in the step 2, the receiving sensitivity and the transmitting power of the measurement and control transponder are determined, a proper Ka/S antenna is selected, the G/T value and the EIRP value of the relay measurement and control channel are required to meet the communication requirement, and a proper power amplifier is selected; step 4, a satellite program control or relay satellite sends a command to open a large gain channel of the power amplifier, a return telemetry signal is sent to the relay satellite through an S transmitting antenna, a return telemetry link is established, and the ground can monitor the Ka/S link establishment process in real time; the Ka/S antenna points to the relay satellite according to program setting, a KSA (K wave single address service) and SSA (S wave band single address service) return link is established, after the link is established (automatic tracking), a satellite program control or the relay satellite sends an instruction to close a large gain channel of the power amplifier, a small gain channel is opened, and a return telemetry signal is sent through the Ka/S antenna; and 5, defining a measurement and control working mode of the satellite-borne S-band relay user terminal system based on a spread spectrum system, and working according to the working mode requirement when the relay satellite performs measurement and control communication. The establishment process of the Ka/S link between the user terminal and the relay satellite is monitored in real time, so that the emergency measurement and control capability is improved. The method has the beneficial effects of reducing satellite configuration, saving satellite resources, reducing satellite cost and the like.
The defect in the prior patent is that although the establishment process of the Ka/S link between the user terminal and the relay satellite is monitored in real time, the emergency measurement and control capability is improved. But once intercepted, the multi-band satellite signals can easily acquire core data information.
Disclosure of Invention
Aiming at the problem that once the existing multi-band satellite signals are intercepted, the core data information of the existing multi-band satellite signals is easy to acquire, the invention provides a multi-band satellite measurement and control system and a multi-band satellite measurement and control method.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a multi-band satellite measurement and control system comprises a relay satellite, a ground transmitting station, a ground receiving station, a multi-band satellite signal frequency combining unit, a multi-band satellite signal frequency demodulating unit, a satellite signal noise raising unit, a satellite signal noise demodulating unit and a multi-band noise raising and lowering storage database;
the relay satellite is used for receiving and forwarding the multi-band satellite signals;
the ground transmitting station is in communication connection with the relay satellite and is used for transmitting the multi-band satellite signals to the relay satellite;
the ground receiving station is in communication connection with the relay satellite and is used for receiving the multi-band satellite signals forwarded by the relay satellite;
the multi-band satellite signal frequency combining unit is in communication connection with the ground transmitting station and is used for combining a plurality of single-band satellite signals into a multi-band satellite signal and transmitting the multi-band satellite signal to the ground transmitting station;
the multi-band satellite signal frequency-splitting unit is in communication connection with the ground receiving station, and is used for splitting the multi-band satellite signal into a plurality of single-band satellite signals with different frequencies and transmitting the single-band satellite signals to the satellite signal noise-splitting unit;
the satellite signal noise rise unit is in communication connection with the multi-band satellite signal frequency combining unit and is used for carrying out noise rise encryption on transmission data of the single-band satellite signal;
the satellite signal denoising unit is in communication connection with the multi-band satellite signal denoising unit and is used for denoising and decrypting transmission data of the single-band satellite signal;
the multi-band lifting noise storage database, the satellite signal lifting noise unit and the satellite signal denoising unit are both provided with communication connection lines for providing password character strings for lifting noise and denoising in the transmission data of the satellite signals.
Further, the satellite signal noise increasing unit inserts the password character string in the multi-band noise increasing and decreasing storage database by adopting a random insertion method, and feeds back the position information of the satellite signal transmission data inserted by the password character string to the multi-band noise increasing and decreasing storage database.
Further, the satellite signal denoising unit performs denoising and decryption by adopting a character string interception, matching and searching mode, and obtains the transmission data of the single-band satellite signal during initial uploading.
Further, when only one single-band satellite signal exists, the single-band satellite signal is spread into a plurality of single-band satellite signals with different frequencies through the signal amplifier, and then the plurality of single-band satellite signals are synthesized into a multi-band satellite signal and transmitted to the ground transmitting station.
Further, a second communication link is arranged between the multi-band satellite signal frequency combining unit and the multi-band satellite signal frequency demodulating unit, and the second communication link is used for transmitting the frequency of each band satellite signal of the multi-band satellite signals; a third communication link is arranged between the satellite signal noise-raising unit and the satellite signal noise-eliminating unit, and the third communication link is used for transmitting the position information of the satellite signal transmission data inserted by the password character string.
A multi-band satellite measurement and control method comprises the following steps:
s1, acquiring a plurality of single-band satellite signals to be transmitted through a ground transmitting station;
s2, carrying out noise rise encryption on transmission data of a plurality of single-band satellite signals;
s3, synthesizing the plurality of single-band satellite signals after noise rise and encryption into a multi-band satellite signal, and feeding back the multi-band satellite signal to a ground transmitting station;
s4, transmitting the multi-band satellite signals to the relay satellite;
s5, the ground receiving station receives the multi-band satellite signals forwarded by the relay satellite;
s6, decomposing the multi-band satellite signals into a plurality of single-band satellite signals with different frequencies;
s7, denoising and decrypting the transmission data of the single-band satellite signals;
s8, verifying whether the transmission data of the single-band satellite signals after the ground receiving station is denoised are consistent with the transmission data of the single-band satellite signals sent by the ground transmitting station, outputting the single-band satellite signals if the transmission data are consistent with the transmission data of the single-band satellite signals, and entering a step S9 if the transmission data are inconsistent with the transmission data of the single-band satellite signals;
s9, informing the user of errors in the single-band satellite signal transmission.
Compared with the prior art, the invention has the following beneficial effects:
by means of noise rise, encryption and frequency combination of a plurality of single-band satellite signals, confidentiality of core data information of satellite signal transmission is improved, and intercepted satellite signals are difficult to crack.
Drawings
FIG. 1 is a schematic diagram of an overall frame of a multi-band satellite measurement and control system according to an embodiment of the present invention;
fig. 2 is a flowchart of a multi-band satellite measurement and control method according to an embodiment of the present invention.
Detailed Description
The invention will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the invention.
As shown in fig. 1, the present embodiment provides a multi-band satellite measurement and control system, which includes a relay satellite, a ground transmitting station, a ground receiving station, a multi-band satellite signal frequency combining unit, a multi-band satellite signal frequency demodulating unit, a satellite signal noise raising unit, a satellite signal noise demodulating unit, and a multi-band noise raising and lowering storage database;
the relay satellite is used for receiving and forwarding the multi-band satellite signals;
the ground transmitting station is in communication connection with the relay satellite and is used for transmitting the multi-band satellite signals to the relay satellite;
the ground receiving station is in communication connection with the relay satellite and is used for receiving the multi-band satellite signals forwarded by the relay satellite;
the multi-band satellite signal frequency combining unit is in communication connection with the ground transmitting station and is used for combining a plurality of single-band satellite signals into a multi-band satellite signal and transmitting the multi-band satellite signal to the ground transmitting station;
the multi-band satellite signal frequency-splitting unit is in communication connection with the ground receiving station, and is used for splitting the multi-band satellite signal into a plurality of single-band satellite signals with different frequencies and transmitting the single-band satellite signals to the satellite signal noise-splitting unit;
the satellite signal noise rise unit is in communication connection with the multi-band satellite signal frequency combining unit and is used for carrying out noise rise encryption on transmission data of the single-band satellite signal;
the satellite signal denoising unit is in communication connection with the multi-band satellite signal denoising unit and is used for denoising and decrypting transmission data of the single-band satellite signal;
the multi-band lifting noise storage database, the satellite signal lifting noise unit and the satellite signal denoising unit are both provided with communication connection lines for providing password character strings for lifting noise and denoising in the transmission data of the satellite signals.
The satellite signal noise increasing unit inserts the password character string in the multi-band noise increasing and decreasing storage database by adopting a random insertion method, and feeds back the position information of the satellite signal transmission data inserted by the password character string to the multi-band noise increasing and decreasing storage database.
The satellite signal denoising unit performs denoising and decryption by adopting a character string interception, matching and searching mode, and obtains the transmission data of the single-band satellite signal during initial uploading.
When only one single-band satellite signal exists, the single-band satellite signal is spread into a plurality of single-band satellite signals with different frequencies through the signal amplifier, and then the plurality of single-band satellite signals are synthesized into a multi-band satellite signal and transmitted to the ground transmitting station. The method has the advantages that the method can prevent single-band satellite signals from being intercepted easily, even if a plurality of single-band satellite signals with different frequencies are intercepted, core data information of the single-band satellite signals is difficult to acquire, the core data information is in a chaotic state, and intercepting personnel can hardly acquire the single-band multi-band satellite signals synthesized by the plurality of single-band satellite signals.
A second communication link is arranged between the multi-band satellite signal frequency combining unit and the multi-band satellite signal frequency demodulating unit, and the second communication link is used for transmitting the frequency of each band satellite signal of the multi-band satellite signals; the subsequent multi-band satellite signal frequency-splitting unit can be used for conveniently splitting the multi-band satellite signal into a plurality of single-band satellite signals with different frequencies. A third communication link is arranged between the satellite signal noise-raising unit and the satellite signal noise-eliminating unit, and the third communication link is used for transmitting the position information of the satellite signal transmission data inserted by the password character string; the satellite signal denoising unit is convenient for verifying whether the single-band satellite signal after denoising is consistent with the single-band satellite signal before being sent by the ground transmitting station. And deleting the password character string through the position information of the satellite signal transmission data inserted by the transmission password character string, verifying whether the single-band satellite signals are consistent or not, and simultaneously verifying that the package is a secret code, wherein the verification is only performed, and the satellite signal denoising single-end user cannot check.
A multi-band satellite measurement and control method comprises the following steps:
s1, acquiring a plurality of single-band satellite signals to be transmitted through a ground transmitting station;
s2, carrying out noise rise encryption on transmission data of a plurality of single-band satellite signals;
s3, synthesizing the plurality of single-band satellite signals after noise rise and encryption into a multi-band satellite signal, and feeding back the multi-band satellite signal to a ground transmitting station;
s4, transmitting the multi-band satellite signals to the relay satellite;
s5, the ground receiving station receives the multi-band satellite signals forwarded by the relay satellite;
s6, decomposing the multi-band satellite signals into a plurality of single-band satellite signals with different frequencies;
s7, denoising and decrypting the transmission data of the single-band satellite signals;
s8, verifying whether the transmission data of the single-band satellite signals after the ground receiving station is denoised are consistent with the transmission data of the single-band satellite signals sent by the ground transmitting station, outputting the single-band satellite signals if the transmission data are consistent with the transmission data of the single-band satellite signals, and entering a step S9 if the transmission data are inconsistent with the transmission data of the single-band satellite signals;
s9, informing the user of errors in the single-band satellite signal transmission.
Compared with the prior art, the invention has the following beneficial effects:
by means of noise rise, encryption and frequency combination of a plurality of single-band satellite signals, confidentiality of core data information of satellite signal transmission is improved, and intercepted satellite signals are difficult to crack.
The multi-band satellite measurement and control system and the method provided by the application are described in detail. The description of the specific embodiments is only intended to facilitate an understanding of the method of the present application and its core ideas. It should be noted that it would be obvious to those skilled in the art that various improvements and modifications can be made to the present application without departing from the principles of the present application, and such improvements and modifications fall within the scope of the claims of the present application.
Claims (6)
1. The multi-band satellite measurement and control system is characterized by comprising a relay satellite, a ground transmitting station, a ground receiving station, a multi-band satellite signal frequency combining unit, a multi-band satellite signal frequency resolving unit, a satellite signal noise raising unit, a satellite signal noise resolving unit and a multi-band noise raising and lowering storage database;
the relay satellite is used for receiving and forwarding the multi-band satellite signals;
the ground transmitting station is in communication connection with the relay satellite and is used for transmitting the multi-band satellite signals to the relay satellite;
the ground receiving station is in communication connection with the relay satellite and is used for receiving the multi-band satellite signals forwarded by the relay satellite;
the multi-band satellite signal frequency combining unit is in communication connection with the ground transmitting station and is used for combining a plurality of single-band satellite signals into a multi-band satellite signal and transmitting the multi-band satellite signal to the ground transmitting station;
the multi-band satellite signal frequency-splitting unit is in communication connection with the ground receiving station, and is used for splitting the multi-band satellite signal into a plurality of single-band satellite signals with different frequencies and transmitting the single-band satellite signals to the satellite signal noise-splitting unit;
the satellite signal noise rise unit is in communication connection with the multi-band satellite signal frequency combining unit and is used for carrying out noise rise encryption on transmission data of the single-band satellite signal;
the satellite signal denoising unit is in communication connection with the multi-band satellite signal denoising unit and is used for denoising and decrypting transmission data of the single-band satellite signal;
the multi-band lifting noise storage database, the satellite signal lifting noise unit and the satellite signal denoising unit are both provided with communication connection lines for providing password character strings for lifting noise and denoising in the transmission data of the satellite signals.
2. The system according to claim 1, wherein the satellite signal noise increasing unit inserts the code string into the multi-band noise increasing and decreasing storage database by using a random insertion method, and feeds back the position information of the satellite signal transmission data inserted by the code string to the multi-band noise increasing and decreasing storage database.
3. The multi-band satellite measurement and control system according to claim 2, wherein the satellite signal denoising unit performs denoising and decryption by adopting a character string interception, matching and searching mode, and obtains transmission data of the single-band satellite signal during initial uploading.
4. A multi-band satellite measurement and control system according to claim 3, wherein when there is only one single-band satellite signal, the single-band satellite signal is spread into a plurality of single-band satellite signals with different frequencies through the signal amplifier, and the plurality of single-band satellite signals are synthesized into a multi-band satellite signal and transmitted to the ground transmitting station.
5. The system according to claim 4, wherein a second communication link is arranged between the multi-band satellite signal frequency synthesizing unit and the multi-band satellite signal frequency demodulating unit, and the second communication link is used for transmitting the frequency of each band satellite signal of the multi-band satellite signals; a third communication link is arranged between the satellite signal noise-raising unit and the satellite signal noise-eliminating unit, and the third communication link is used for transmitting the position information of the satellite signal transmission data inserted by the password character string.
6. The multi-band satellite measurement and control method is characterized by comprising the following steps:
s1, acquiring a plurality of single-band satellite signals to be transmitted through a ground transmitting station;
s2, carrying out noise rise encryption on transmission data of a plurality of single-band satellite signals;
s3, synthesizing the plurality of single-band satellite signals after noise rise and encryption into a multi-band satellite signal, and feeding back the multi-band satellite signal to a ground transmitting station;
s4, transmitting the multi-band satellite signals to the relay satellite;
s5, the ground receiving station receives the multi-band satellite signals forwarded by the relay satellite;
s6, decomposing the multi-band satellite signals into a plurality of single-band satellite signals with different frequencies;
s7, denoising and decrypting the transmission data of the single-band satellite signals;
s8, verifying whether the transmission data of the single-band satellite signals after the ground receiving station is denoised are consistent with the transmission data of the single-band satellite signals sent by the ground transmitting station, outputting the single-band satellite signals if the transmission data are consistent with the transmission data of the single-band satellite signals, and entering a step S9 if the transmission data are inconsistent with the transmission data of the single-band satellite signals;
s9, informing the user of errors in the single-band satellite signal transmission.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310543257.0A CN116527113A (en) | 2023-05-15 | 2023-05-15 | Multi-band satellite measurement and control system and method |
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| CN202310543257.0A CN116527113A (en) | 2023-05-15 | 2023-05-15 | Multi-band satellite measurement and control system and method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050227618A1 (en) * | 2004-03-22 | 2005-10-13 | Karabinis Peter D | Multi-band satellite and/or ancillary terrestrial component radioterminal communications systems and methods with diversity operation |
| CN111133817A (en) * | 2017-09-25 | 2020-05-08 | 华为技术有限公司 | Communication method and device |
| CN112398506A (en) * | 2019-01-31 | 2021-02-23 | 上海微小卫星工程中心 | Satellite-ground/relay integrated measurement and control system |
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- 2023-05-15 CN CN202310543257.0A patent/CN116527113A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050227618A1 (en) * | 2004-03-22 | 2005-10-13 | Karabinis Peter D | Multi-band satellite and/or ancillary terrestrial component radioterminal communications systems and methods with diversity operation |
| CN111133817A (en) * | 2017-09-25 | 2020-05-08 | 华为技术有限公司 | Communication method and device |
| CN112398506A (en) * | 2019-01-31 | 2021-02-23 | 上海微小卫星工程中心 | Satellite-ground/relay integrated measurement and control system |
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