CN104917560B - Beidou communication satellite multi-beam multi-user supervises receiving apparatus and method - Google Patents
Beidou communication satellite multi-beam multi-user supervises receiving apparatus and method Download PDFInfo
- Publication number
- CN104917560B CN104917560B CN201510237319.0A CN201510237319A CN104917560B CN 104917560 B CN104917560 B CN 104917560B CN 201510237319 A CN201510237319 A CN 201510237319A CN 104917560 B CN104917560 B CN 104917560B
- Authority
- CN
- China
- Prior art keywords
- fifo
- information
- bypass passages
- baseband module
- big dipper
- 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.)
- Active
Links
- 238000004891 communication Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 19
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims description 27
- 230000001351 cycling effect Effects 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims 1
- 230000006870 function Effects 0.000 description 13
- 238000012544 monitoring process Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 108091064702 1 family Proteins 0.000 description 1
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- 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
- H04B7/18502—Airborne stations
- H04B7/18506—Communications with or from aircraft, i.e. aeronautical mobile service
- H04B7/18508—Communications with or from aircraft, i.e. aeronautical mobile service with satellite system used as relay, i.e. aeronautical mobile satellite service
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Relay Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of Beidou communication satellite multi-beam multi-users to supervise receiving apparatus, and including baseband module and control module, the baseband module and control module are carried out data transmission by EMC buses.Baseband module includes 10 I bypass passages corresponding with 5 Beidou communication satellites and 10 Q bypass passages, while comprising 20 independent FIFO, for caching the complete text of a frame of 20 passages；Control module uses initial term, the polynomial parameters for prestoring the Big Dipper SIM card for the user for needing to monitor, with reference to the quick setting of Q bypass passage parameters, the final text receive capabilities for realizing 10 wave beam multi-user of the Big Dipper.The present invention also provides a kind of Beidou communication satellite multi-beam multi-users to supervise receiving method.Present invention can apply to Big Dipper command type subscriber computer or plain edition subscriber computers, monitor embodiment for Industry system and provide easily mode, reduce system implementation cost.
Description
Technical field
The present invention relates to No. two RDSS communicators of the Big Dipper and methods, and especially Beidou communication satellite multi-beam multi-user, which supervises, receives
Apparatus and method.
Background technology
No. two satellite navigation systems (BD2, Beidou-2) of the Big Dipper are the Global Satellite Navigation System of Chinese stand-alone development.It cuts
Only the end of the year 2012 had 14 satellite services in the Asian-Pacific area at present, were defended including 5 GEO satellites, 5 IGSO satellites and 4 MEO
Star.Wherein No. two 5 GEO satellites of the Big Dipper provide short message communication function, other satellites provide navigation locating function.5 GEO are defended
Star, wherein every satellite includes 2 independent beam signals, i.e., totally 10 independent beam signals provide short message communication service.Often
A beam signal includes I, Q two-way modulation intelligence.
The Big Dipper " short message " is the peculiar function of Beidou satellite navigation system, which refers to that satellite positioning-terminal and the Big Dipper are defended
Directly two-way information can be carried out between star or Big Dipper ground support system by satellite-signal to transfer, independent of communication network
Network.In the case that especially disaster region mobile communication interruption, power breakdown etc. or mobile communication cannot cover, Big Dipper terminal is just
It can be communicated using short message, realize location information and remote information interaction etc..The technology will be applied to emergency disaster relief, open country
The systems such as outer operation, ocean operation.
Short message communication is a big characteristic of the Big Dipper, you can for subscriber computer and subscriber computer, subscriber computer and ground central station it
Between the short message Communications services of most 120 Chinese characters or 1680 bits every time is provided.Each subscriber computer has a unique ID
Number, and using the close cipher mode in 1 family 1, communication is both needed to forward by ground central station.Its flow is：
(1) short message sender will pass through after the communication application signal encryption comprising recipient's ID number and Content of communciation first
Satellite forwards inbound；
(2) after ground central station receives communication application signal, persistently broadcasted through DecryptDecryption and adding in after re-encrypting outbound
In broadcast message, through satellite broadcasting to user；
(3) recipient's subscriber computer receives exit signal, and outbound text is decrypted in demodulation, and completion once communicates.
Similar to positioning function, the propagation delay time of short message communication about 0.5 second, the highest frequency of communication is also 1 second 1 time.
Beidou subscriber machine is typically all the principle of one-machine-one-number, i.e., Zhangbei County bucket SIM is loaded on each subscriber computer
Card, this SIM card are used to represent the unique identities of user, and store initial term, the polynomial parameters of user.The positive reason of Beidou subscriber machine
The satellite short message information of oneself is only received under condition.In some special application scenarios, Beidou subscriber machine needs to receive multiple use
The short message information at family, so as to realize the monitoring to multiple user terminals.
The content of the invention
The present invention is directed to propose a kind of method solves the problems, such as Beidou communication satellite-signal multi-beam multi-user reception.In order to
Above-mentioned technical problem is solved, the present invention provides a kind of Beidou communication satellite multi-beam multi-users to supervise receiving apparatus, including base band mould
Block and control module, the baseband module and control module are carried out data transmission by EMC buses, wherein,
The baseband module includes N × M parallel independent I bypass passages, N × M parallel independent Q branches lead to
Road and 2 × N × M FIFO, the N × M I bypass passages are respectively used to capture, track, demodulate corresponding Beidou communication satellite
The I tributary signals of N × M wave beam of transmitting；N × M Q the bypass passages are respectively used to capture, track, demodulate corresponding north
Struggle against the N × M wave beam Q tributary signal that telecommunication satellite emits；2 × the N × M FIFO and N × M I bypass passage and N × M
A Q bypass passages are correspondingly arranged, be respectively used to receive and cache corresponding I bypass passages or Q bypass passages send text letter
Breath；Wherein N is the number of corresponding Beidou communication satellite, and M is the beam signal of each corresponding Beidou communication satellite launch
Number；
The control module includes memory queue and interrupt processing unit, and the interrupt processing unit is used for according to
Information in FIFO supervises the id information of the Big Dipper short message user received to read and deposit with the needs for being pre-stored in the memory queue
Store up the textual information for needing to supervise the Big Dipper short message user received.
The corresponding first phase of Big Dipper SIM card of the id information including the user for needing to supervise the Big Dipper short message user received and
Polynomial parameters；The M is 5, N 2.
Preferably, each passage includes a capture register in the N × M Q bypass passages；The length of the FIFO
Not less than the maximum length for 1 frame information that the baseband module receives；Interrupt processing unit has highest in the control module
Processing priority.
Preferably, the baseband module uses the debud mode of QPSK, and Q bypass passages are later than I bypass passage a quarters
A phase cycling.
Correspondingly, the present invention also provides a kind of Beidou communication satellite multi-beam multi-users to supervise receiving method, including following step
Suddenly：
S1, the I bypass passages of baseband module and Q bypass passages receive and parse through the letter of Beidou communication satellite transmission respectively
Breath, and the information of parsing is stored in respectively in corresponding FIFO；
S2, baseband module are sent to control module reads FIFO interrupt requests；
S3, control module receive the FIFO requests of baseband module transmission, control interrupt processing unit traversal baseband module
In FIFO, by FIFO effective textual information be stored in memory queue；
S4, interrupt processing unit traversal memory queue, read the corresponding textual information of I bypass passages, and parse described
The ID1 fields of textual information, the needs to prestore in memory queue, which are supervised in the id information of the Big Dipper short message user received, searches institute
ID1 fields are stated, if finding, the corresponding first phase of the id information of the user and polynomial parameters is written to the I branches and led to
In the capture register of the corresponding Q bypass passages in road.
Specifically, step S1 comprises the following steps：
S101, the I bypass passages of baseband module and Q bypass passages receive the information of Beidou communication satellite transmission respectively, into
Row frame synchronization；
S102, baseband module read complete 1 frame information；
1 frame information of reading is transferred to viterbi decoder to decode to obtain content frame by S103, baseband module；
The content frame is stored in corresponding FIFO by S104, baseband module.
Specifically, the FIFO in the interrupt processing unit traversal baseband module in step S3, by effective text in FIFO
Information deposit memory queue includes：Interrupt processing unit is successively read the FIFO in baseband module, judge in each FIFO whether
There is available textual information, if so, the data in the FIFO then to be copied to the memory queue of control module by EMC buses
In.
Preferably, it is further comprising the steps of after step S4：
S5, control module traversal memory queue read and store the corresponding electricity for needing to supervise the Big Dipper short message user received
Literary information.
Preferably, the needs to prestore in memory queue in step S4 are supervised in the id information of the Big Dipper short message user received
The ID1 fields are searched using binary chop.
Preferably, further included before step S1：The id information for needing to supervise the Big Dipper short message user received is stored to memory team in advance
Row.
With the application of the invention, it has the advantages that：
The present invention includes two big process part of baseband module and control module, baseband module include 10 I bypass passages and
10 Q bypass passages, while comprising 20 independent FIFO, for caching the complete text of a frame of 20 passages.Control module
Part is using prestoring initial term, the polynomial parameters of user's Big Dipper SIM card, with reference to the quick setting of Q bypass passage parameters, most
The receive capabilities of multi-user's text to 5 10 wave beams of telecommunication satellite of the Big Dipper are realized eventually.Present invention can apply to Big Dipper commanders
Type subscriber computer or plain edition subscriber computer monitor embodiment for Industry system and provide easily mode, reduce system implementation
Cost；And be conducive to increase the capacity of Big Dipper command type subscriber computer subordinate's user monitoring and reduce Beidou communication monitoring trade
Application cost.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art and advantage, below will be to implementing
Example or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, the accompanying drawings in the following description is only
Only it is some embodiments of the present invention, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the system block diagram that Beidou communication satellite multi-beam multi-user provided in an embodiment of the present invention supervises receiving apparatus；
Fig. 2 is the baseband module control that Beidou communication satellite multi-beam multi-user provided in an embodiment of the present invention supervises receiving apparatus
Flow chart；
Fig. 3 is the control module reading that Beidou communication satellite multi-beam multi-user provided in an embodiment of the present invention supervises receiving apparatus
The flow chart of FIFO；
Fig. 4 is the control module setting that Beidou communication satellite multi-beam multi-user provided in an embodiment of the present invention supervises receiving apparatus
The flow chart of Q bypass passage registers.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art obtained on the premise of creative work is not made it is all its
His embodiment, belongs to the scope of protection of the invention.
Embodiment：
Fig. 1-Fig. 4 is referred to, an embodiment of the present invention provides a kind of Beidou communication satellite multi-beam multi-users to supervise receiving apparatus,
Including baseband module and control module, the baseband module and control module are carried out data transmission by EMC buses, wherein,
The baseband module includes N × M parallel independent I bypass passages, N × M parallel independent Q branches lead to
Road and 2 × N × M FIFO, the N × M I bypass passages are respectively used to capture, track, demodulate corresponding Beidou communication satellite
The I tributary signals of N × M wave beam of transmitting；N × M Q the bypass passages are respectively used to capture, track, demodulate corresponding north
Struggle against the N × M wave beam Q tributary signal that telecommunication satellite emits；2 × the N × M FIFO and N × M I bypass passage and N × M
A Q bypass passages are correspondingly arranged, be respectively used to receive and cache corresponding I bypass passages or Q bypass passages send text letter
Breath；Wherein N is the number of corresponding Beidou communication satellite, and M is the beam signal of each corresponding Beidou communication satellite launch
Number；
The control module includes memory queue and interrupt processing unit, and the interrupt processing unit is used for according to
Information in FIFO supervises the id information of the Big Dipper short message user received to read and deposit with the needs for being pre-stored in the memory queue
Store up the textual information for needing to supervise the Big Dipper short message user received.
Existing Beidou communication satellite has 5 satellites, and every satellite includes 2 independent beam signals, so M is 5, N
For 2.Baseband module design includes 10 independent I bypass passages and 10 Q bypass passages, corresponds to 10 wave beams respectively.The Big Dipper is short
Message receives the debud mode that signal uses QPSK, i.e. Q branches are later than I branch a quarter phase cyclings.
Baseband module is realized using hardware logic language, is Real-time hardware signal circuit.Control module part uses C language
Coding is realized, is software control part.
For baseband module altogether comprising 20 passages, this 20 passages are parallel independent process, below by taking 1 passage as an example, are explained
State the main implementation method of the baseband portion in the present invention.As shown in Fig. 2, after frame synchronization, after reading complete 1 frame information,
Viterbi decoder is transferred to, exports final content frame, this content frame is 250 bits, and this content frame is deposited into base band part
In the FIFO divided, then baseband portion triggers a FIFO and reads interruption, control module part to be prompted to carry out this channel data
FIFO read.
The present invention needs to collect the textual information of multiple users.Due to Big Dipper short message user, each user
There is 1 independent Big Dipper SIM card, this SIM card is used to represent the unique identities of user, and stores the initial term of user, multinomial ginseng
Number.
Here first reading in advance needs to supervise initial term, the polynomial parameters for receiving user, is prestored to monitoring user memory team
In row, monitoring user list is established, for being used during subsequent user information extraction.
Control module part is write using C language design, according to the FIFO interrupt signals that baseband module provides, travels through 20
FIFO if FIFO is effective, reads entire FIFO into memory queue, until 20 FIFO traversals finish, is interrupted with realizing
Quick response, ensure the actual effect of the real-time and hardware FIFO interrupted, it is final to ensure that data fifo be lost.
As shown in figure 3, the FIFO that control module receives baseband module interrupts reading signal, interrupt processing unit enters interruption
Function is handled, the 1st FIFO is first read, judges whether this FIFO there are available FIFO textual informations, if any then by this baseband module
Data fifo copied to by EMC buses in the memory queue of control module, be successively read the 2nd FIFO, the 3rd FIFO,
Until it reads to the 20th FIFO to finish.
Then, memory queue is traveled through, first priority processing I branches FIFO information reads ID1 fields in the FIFO of I branches, sentences
Disconnected ID1 fields whether in the Subscriber Queue to be monitored, if, read the corresponding first phase of this User ID, polynomial parameters,
It is written in base band Q branches capture register, so as to the signal on base band this Q road on next frame acquisition and tracking, and exports to control
Molding block reads the textual information of Q branch road.If it does not exist, then it does not do such as aforementioned processing.The FIFO of priority processing I branches
Information, be in order to ensure the real-time of Q branch next frame acquisition and trackings, around here the time there was only 31.25ms.
As shown in figure 4, in interrupt processing function, first data in memory queue are read, are judged in memory queue
1st data, if be I branches, if so, then reading the ID1 fields in text, judge whether ID1 fields are to write in advance before
Enter to the user in monitoring user list, lookup method should be using binary chop, to reach control module quick search here
Purpose, ensure effective.
If the user in monitoring user list, then be written to base band by the initial term of this user, polynomial parameters and correspond to Q
So that the Q branches of this wave beam can track satellite-signal in next frame, and it is next frame in the capture register of bypass passage
The text extraction of Q branches provides information.
Cycling is successively read and handles the 2nd, the 3rd data, is finished until reading, interrupt processing at this time finishes.It is interrupting
Handle function in, handle two big functions, when read baseband module data fifo into the memory of control module, second is that according to
The carrying data message of I branches sets Q branch parameters, this two big function need to be completed in interrupt processing function, with highest place
Priority is managed, ensures the real-time of system.
After the complete I branches FIFO information of priority processing, memory queue is traveled through, the textual information of corresponding user is read and deposited
Storage.After the completion of interrupt processing function, into the principal function of control module, data in circular treatment memory queue, by agreement into
Row is parsed and is packaged, and the user's textual information received then is sent to user by serial ports.
The present invention includes baseband module and control module two large divisions, by the initial term, more for reading and storing user in advance
The method of item formula parameter, with reference to the mode of 20 channel parallel independent process, realizes to the multiple beam signals of multiple users
All prison receives function.The method can apply Big Dipper command type subscriber computer or plain edition subscriber computer, and embodiment party is monitored for Industry system
Case provides easily mode, reduces system implementation cost.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (5)
1. Beidou communication satellite multi-beam multi-user supervises receiving apparatus, which is characterized in that described including baseband module and control module
Baseband module and control module are carried out data transmission by EMC buses, wherein,
The baseband module include the parallel independent I bypass passages of N × M, N × M parallel independent Q bypass passages with
2 × N × M FIFO, the N × M I bypass passages are respectively used to capture, track, demodulate corresponding Beidou communication satellite launch
N × M wave beam I tributary signals；N × M Q the bypass passages, which are respectively used to capture, track, demodulate the corresponding Big Dipper leads to
Believe N × M wave beam Q tributary signal of satellite launch；2 × the N × M FIFO and N × M I bypass passage and N × M Q branch
Paths are correspondingly arranged, be respectively used to receive and cache corresponding I bypass passages or Q bypass passages send textual information；Its
Middle N is the number of corresponding Beidou communication satellite, and M is the number of the beam signal of each corresponding Beidou communication satellite launch；
The corresponding first phase of Big Dipper SIM card of the id information including the user for needing to supervise the Big Dipper short message user received and multinomial
Formula parameter；The M is 5, N 2；Each passage includes a capture register in the N × M Q bypass passages；The FIFO
Length not less than the baseband module receive 1 frame information maximum length；Interrupt processing unit has in the control module
There is highest processing priority；The baseband module uses the debud mode of QPSK, and Q bypass passages are later than I bypass passages four and divide
One of phase cycling；
The control module includes memory queue and interrupt processing unit, and the interrupt processing unit is used for according in the FIFO
Information and be pre-stored in the needs of the memory queue to supervise the id information of the Big Dipper short message user received described to read and store
Need the textual information of the Big Dipper short message user of prison receipts.
2. Beidou communication satellite multi-beam multi-user supervises receiving method, which is characterized in that comprises the following steps：
S1, the I bypass passages of baseband module and Q bypass passages receive and parse through the information of Beidou communication satellite transmission respectively, and
The information of parsing is stored in respectively in corresponding FIFO；
Step S1 comprises the following steps：
S101, the I bypass passages of baseband module and Q bypass passages receive the information of Beidou communication satellite transmission respectively, carry out frame
It is synchronous；
S102, baseband module read complete 1 frame information；
1 frame information of reading is transferred to viterbi decoder to decode to obtain content frame by S103, baseband module；
The content frame is stored in corresponding FIFO by S104, baseband module；
S2, baseband module are sent to control module reads FIFO interrupt requests；
S3, control module receive the FIFO requests of baseband module transmission, and control interrupt processing unit is traveled through in baseband module
Effective textual information in FIFO is stored in memory queue by FIFO；
The FIFO in interrupt processing unit traversal baseband module in step S3, memory is stored in by effective textual information in FIFO
Queue includes：Interrupt processing unit is successively read the FIFO in baseband module, judges whether there is available text in each FIFO
Information, if so, then copying to the data in the FIFO in the memory queue of control module by EMC buses；
S4, interrupt processing unit traversal memory queue, read the corresponding textual information of I bypass passages, and parse the text
The ID1 fields of information, the needs to prestore in memory queue, which are supervised in the id information of the Big Dipper short message user received, searches the ID1
The corresponding first phase of the id information of the user and polynomial parameters if finding, are written to the I bypass passages and corresponded to by field
Q bypass passages capture register in.
3. Beidou communication satellite multi-beam multi-user according to claim 2 supervises receiving method, which is characterized in that step S4 it
It is further comprising the steps of afterwards：
S5, control module traversal memory queue read and store the corresponding text letter for needing to supervise the Big Dipper short message user received
Breath.
4. Beidou communication satellite multi-beam multi-user according to claim 2 supervises receiving method, which is characterized in that in step S4
The needs to prestore in memory queue supervise the ID1 fields searched in the id information of the Big Dipper short message user received using two points
Lookup method.
5. Beidou communication satellite multi-beam multi-user according to claim 4 supervises receiving method, which is characterized in that before step S1
It further includes：The id information for needing to supervise the Big Dipper short message user received is stored to memory queue in advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510237319.0A CN104917560B (en) | 2015-05-12 | 2015-05-12 | Beidou communication satellite multi-beam multi-user supervises receiving apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510237319.0A CN104917560B (en) | 2015-05-12 | 2015-05-12 | Beidou communication satellite multi-beam multi-user supervises receiving apparatus and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104917560A CN104917560A (en) | 2015-09-16 |
| CN104917560B true CN104917560B (en) | 2018-06-05 |
Family
ID=54086301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510237319.0A Active CN104917560B (en) | 2015-05-12 | 2015-05-12 | Beidou communication satellite multi-beam multi-user supervises receiving apparatus and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104917560B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113612519B (en) * | 2021-08-05 | 2022-09-13 | 成都市精准时空科技有限公司 | Communication control method, system, device and medium for commander and subordinate machine |
| CN114124193A (en) * | 2021-11-12 | 2022-03-01 | 中国科学院国家空间科学中心 | High-performance data transmission baseband odd-even combination real-time processing system and method thereof |
| CN115632698A (en) * | 2022-10-19 | 2023-01-20 | 国网思极位置服务有限公司 | Terminal control system for reliable transmission of Beidou short messages |
| CN117335929B (en) * | 2023-12-01 | 2024-02-20 | 十方星链(苏州)航天科技有限公司 | Satellite ground station multipath concurrency code modulation communication terminal and communication method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702016A (en) * | 2009-08-05 | 2010-05-05 | 和芯星通科技(北京)有限公司 | Satellite navigation system baseband signal processing system and method |
| CN101839984A (en) * | 2010-04-19 | 2010-09-22 | 北京北斗星通导航技术股份有限公司 | Navigational satellite signal receiver |
| EP2744102A1 (en) * | 2012-12-17 | 2014-06-18 | Nxp B.V. | Digital down converter circuit |
-
2015
- 2015-05-12 CN CN201510237319.0A patent/CN104917560B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702016A (en) * | 2009-08-05 | 2010-05-05 | 和芯星通科技(北京)有限公司 | Satellite navigation system baseband signal processing system and method |
| CN101839984A (en) * | 2010-04-19 | 2010-09-22 | 北京北斗星通导航技术股份有限公司 | Navigational satellite signal receiver |
| EP2744102A1 (en) * | 2012-12-17 | 2014-06-18 | Nxp B.V. | Digital down converter circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104917560A (en) | 2015-09-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104917560B (en) | Beidou communication satellite multi-beam multi-user supervises receiving apparatus and method | |
| CN106878926A (en) | A kind of data transmission method based on low-power consumption bluetooth, from main equipment and system | |
| GB2560469A (en) | MIMO satellite service terminal | |
| CN109495494B (en) | Frame structure configuration method, transmission device and system for VDES data transmission | |
| CN114285912A (en) | Communication method, device and satellite convergence gateway | |
| CN104833994A (en) | Ad-Hoc network mode-based RTK (Real-Time Kinematic) Beidou positioning system and method | |
| CN104619040A (en) | Method and system for quickly connecting WIFI equipment | |
| CN111211879A (en) | Beidou message transmission method and airborne Beidou system | |
| US20240137108A1 (en) | Wireless communication system, wireless communication method, apparatus, device, and storage medium | |
| CN109699051A (en) | A kind of method and apparatus in the user equipment of wireless communication, the network equipment | |
| CN111181624B (en) | Airborne Beidou system and application method thereof | |
| EP4328815A1 (en) | Federated learning method, federated learning system, first device, and third device | |
| US20160269102A1 (en) | Apparatus for transmitting and receiving data using network coding in multiple transmission paths | |
| US9066321B1 (en) | Proxy-based establishment of a communication session | |
| CN113747377A (en) | Big dipper command system of big data file is sent in coordination | |
| CN111711509A (en) | Intelligent user interference system and method based on satellite communication countermeasure | |
| CN106534602B (en) | A kind of terminal and information processing method | |
| CN104683013A (en) | Geosynchronous orbit satellite communication access system and access method | |
| CN104215984B (en) | A kind of method and apparatus of satellite fix | |
| Fanfani et al. | Feasibility study of an alert messaging system by means of CubeSat, SDR and web service technologies | |
| CN203457155U (en) | Beidou Satellite mobile communication system and gateway thereof | |
| CN101990178B (en) | Equipment and system for processing short message of take-out user and method for processing short message service | |
| CN102215451B (en) | The processing method of positioning service and system | |
| CN110233809B (en) | Baseband signal processing method, device, equipment and storage medium | |
| EP4075747A1 (en) | A system for receiving by a gnb a location information, corresponding deciphering server and gnss chipset |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 100193, building 2331, block A, building 2, Zhongguancun Software Park, Beijing, Haidian District Applicant after: BEIJING JIUTAIN LIJIAN INFORMATION TECHNOLOGY Co.,Ltd. Address before: 100094, Beijing, Haidian District North Road, No. 68 UF Software Park West Applicant before: BEIJING NOVSKY INFORMATION TECHNOLOGY Co.,Ltd. |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Beidou communication satellite multi-beam and multi-user receiving monitoring device and method Effective date of registration: 20190418 Granted publication date: 20180605 Pledgee: Zhongguancun Beijing technology financing Company limited by guarantee Pledgor: BEIJING JIUTAIN LIJIAN INFORMATION TECHNOLOGY Co.,Ltd. Registration number: 2019990000342 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200818 Granted publication date: 20180605 Pledgee: Zhongguancun Beijing technology financing Company limited by guarantee Pledgor: BEIJING JIUTAIN LIJIAN INFORMATION TECHNOLOGY Co.,Ltd. Registration number: 2019990000342 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Beidou communication satellite multi beam multi-user monitoring device and method Effective date of registration: 20200818 Granted publication date: 20180605 Pledgee: Zhongguancun Beijing technology financing Company limited by guarantee Pledgor: BEIJING JIUTAIN LIJIAN INFORMATION TECHNOLOGY Co.,Ltd. Registration number: Y2020990000986 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220822 Granted publication date: 20180605 Pledgee: Zhongguancun Beijing technology financing Company limited by guarantee Pledgor: BEIJING JIUTAIN LIJIAN INFORMATION TECHNOLOGY Co.,Ltd. Registration number: Y2020990000986 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Beidou communication satellite multi beam multi user monitoring device and method Effective date of registration: 20231026 Granted publication date: 20180605 Pledgee: Bank of Nanjing Limited by Share Ltd. Beijing branch Pledgor: BEIJING JIUTAIN LIJIAN INFORMATION TECHNOLOGY Co.,Ltd. Registration number: Y2023110000445 |