CN101795164B - Method for monitoring co-channel interference in satellite uplink channel - Google Patents
Method for monitoring co-channel interference in satellite uplink channel Download PDFInfo
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- CN101795164B CN101795164B CN201010103593.6A CN201010103593A CN101795164B CN 101795164 B CN101795164 B CN 101795164B CN 201010103593 A CN201010103593 A CN 201010103593A CN 101795164 B CN101795164 B CN 101795164B
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Abstract
The invention discloses a method for monitoring co-channel interference in a satellite uplink channel. The method comprises the following steps: loading a global map, and recording corresponding longitude and latitude of each position of the global map; selecting a monitoring mode which comprises interference distribution monitoring and fixed point interference monitoring; if the interference distribution monitoring is selected, setting an interference level threshold and a color corresponding to each threshold, extracting a required record table and required fields from a database server, calculating interference values corresponding to each longitude and each latitude, and displaying the interference values on the global map by using the corresponding colors according to the size of the interference values; and if the fixed point interference monitoring is selected, acquiring a geographical position to be monitored, quickly searching a position closest to the geographical position to be monitored in the database server, and then returning to the interference condition of the position.
Description
Technical field
The present invention relates to communication technical field, the monitoring method that particularly in a kind of satellite uplink channel, cochannel disturbs.
Background technology
In Modern Communication System, satellite communication is incomparable owing to having some other communication modes institute, at national defence, the numerous areas such as civilian, is widely applied.Yet, in satellite communication, disturbing from the cochannel of terrestrial wireless communication system or other satellite communication system is a very serious problem.In addition, some other unknown cochannel disturb (such as radar signal disturb, the malicious attack of ground jamming equipment etc.) also can happen occasionally, this has all affected band efficiency and the communication quality of satellite communication greatly.
Anti-Jamming Technique has become one of key technology in satellite communication, and external particularly U.S.'s late nineteen seventies early eighties starts the research work of this respect, up to now, the report of newest research results is still constantly arranged.Domesticly also conducted in-depth research in this respect in recent years, in theoretical and application, all obtained certain achievement.In research process, both needed various Anti-Jamming Techniques are furtherd investigate, also need disturbing source and interference profile to be monitored.Be all effective to all interference owing to there is no a kind of interference protection measure, therefore need to take corresponding a certain or several interference protection measures for a certain or several interference.By interference is monitored, can instruct for Anti-Jamming Technique and tactful selection provide relevant, simultaneously, also can provide a foundation for getting rid of the satellite communication fault.
Interference in satellite communication can be divided into the up channel interference and down channel disturbs.The monitoring that down channel is disturbed and analysis are carried out on ground, usually adopt ready-made spectrum analysis equipment intuitively to show interference profile, and to disturbing source to position.Yet the monitoring that up channel is disturbed and analysis are carried out on satellite, terrestrial user can't intuitively be observed the situation of the interference profile in the uplink communication frequency range.And, due to the relative earth of satellite (except geostationary orbit satellite) in the high-speed motion process, monitor the disturbed condition of a certain fixed position not enough, how in the monitor satellite up channel, cochannel disturbs the distribution situation of (at least in the satellite orbit coverage) in the world to seem particularly important.
Summary of the invention
The object of the present invention is to provide the monitoring method that in a kind of satellite uplink channel, cochannel disturbs, can disturb and be monitored the cochannel existed in satellite uplink channel in the world, and monitoring result is checked and operated for the user in directly perceived easy mode, realize the monitoring to the disturbed condition of a certain particular location simultaneously.
The invention provides the monitoring method that in a kind of satellite uplink channel, cochannel disturbs, the data that this cochannel disturbs are stored in database server, wherein, said method comprising the steps of: passing of satelline interference analysis load is calculated the interior interference profile situation of up channel at regular intervals one time, and the data of record cochannel interference now, comprise the star second of time, substar coordinate, interfering frequency and interference magnitude, when satellite passes by, data are issued by down channel, and ground station receives data and stores database server into; Load world map, and record described world map each position corresponding longitude and latitude; Select monitoring mode, wherein, described monitoring mode comprises the monitoring interference profile and monitors fixed point and disturb; If select the monitoring interference profile, level of interference thresholding and the corresponding color of each thresholding are set, and record sheet and field that from described database server, extraction needs, calculate the corresponding interference value of each longitude and latitude, then shown by corresponding color on described world map according to the interference value size; If select the monitoring fixed point to disturb, obtain geographical position to be monitored, and in described database server the immediate position of fast finding and described geographical position to be monitored, then return to the disturbed condition of this position.
Further, the data that described cochannel disturbs comprise the star second of time, substar coordinate, interfering frequency and interference magnitude.
Further, connect described database server by Ethernet.
The monitoring method that in satellite uplink channel provided by the invention, cochannel disturbs, by being provided, monitoring interference profile and monitoring fixed point disturb these two kinds of monitoring modes, both " macroscopic view " checked that in satellite uplink channel, cochannel disturbed in global distribution situation on the whole, can monitor its corresponding interference value from a certain particular location " microcosmic " again.
The accompanying drawing explanation
The flow chart that Fig. 1 is management database server in the present invention;
The flow chart that Fig. 2 is the monitoring method that in satellite uplink channel of the present invention, cochannel disturbs;
The flow chart that Fig. 3 is monitoring interference profile in the present invention;
Fig. 4 is the flow chart that in the present invention, the monitoring fixed point is disturbed.
Embodiment
For purpose of the present invention, feature are become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.
At first should recognize, the data that in satellite uplink channel, cochannel disturbs are stored in database server.Passing of satelline interference analysis load is calculated the interior interference profile situation of up channel at regular intervals one time, and the data of record cochannel interference now, comprises the star second of time, substar coordinate, interfering frequency and interference magnitude etc.When satellite passes by, data are issued by down channel, ground station receives data and stores database server into.And, refer to Fig. 1, the flow chart that Fig. 1 is management database server in the present invention.Particularly, this method can be passed through Ethernet connection data storehouse server, so just can manage operation to database.At first, user-selected number is according to information such as storehouse type input database address, username and passwords, and database server is verified the user and distributed corresponding authority.Then, eject the data base administration window, wherein, this data base administration window is divided into three parts: left side is for showing each record sheet of database and field, and the upper right corner is the database operating instruction input frame, and the lower right corner is the instruction execution result display box.After the database successful connection, the record sheet in the program pass database and field, and be presented at the left side of data base administration window with tree, be convenient to the user database is checked to management.If the user need to the operation such as be added/be deleted/revise/check to certain record sheet or field in database, only need in the instruction input frame in the upper right corner, input corresponding database operating instruction confirmation, can show execution result in the lower right corner.
Next, refer to Fig. 2, Fig. 2 has shown the flow chart of the monitoring method that in satellite uplink channel of the present invention, cochannel disturbs, and it comprises:
Step S1: load world map, and record longitude corresponding to world map each position and latitude.In the present embodiment, when user's mouse moves on world map, at status bar, show in real time the corresponding longitude of mouse position and latitude.In addition, the user can by left mouse button to world map amplified dwindle translation the operation such as layer management.
Step S2: select monitoring mode, wherein, described monitoring mode comprises the monitoring interference profile and monitors fixed point and disturb.
Step S3: if select the monitoring interference profile, level of interference thresholding and the corresponding color of each thresholding are set, and record sheet and field that from described database server, extraction needs, calculate the corresponding interference value of each longitude and latitude, then according to the interference value size, on described world map, by corresponding color, shown, its idiographic flow as shown in Figure 3.If customer requirements monitoring Global interference profile, at first judge whether that exact connect ion is to database server.If not, point out user's connection data storehouse, if, ejecting dialog box requires the user to select level of interference thresholding and the corresponding color of each thresholding (being according to disturbing from light to heavy color from light to dark under default situations), after above setting completes, eject and wait for dialog box, now the data processing threads is started working.The data processing threads mainly is responsible for the accessing database server and is therefrom extracted record sheet and the field needed, delete duplicate record and irrational value, calculate the corresponding interference value of each longitude and latitude, then according to the interference value size, on map, by corresponding color, on map, show, after to be shown completing, destruction is waited for window and refreshes world map.So, the user just can see the distribution on global figure that in a complete satellite uplink channel, cochannel disturbs in the mode of " macroscopic view ".
Step S4: if select the monitoring fixed point to disturb, obtain geographical position to be monitored, and in described database server the immediate position of fast finding and described geographical position to be monitored, then return to the disturbed condition of this position, its idiographic flow as shown in Figure 4.In the present embodiment, the user shows to select the monitoring fixed point to disturb by a mouse click right button, certainly in other embodiments other judgment mode can also be arranged.As the user, on world map during a mouse click right button of a certain position, system is sent right mouse button and is clicked message, and at first this message of program response judge whether that exact connect ion is to database server.If not, point out user's connection data storehouse, if, by the mouse-click position with respect to the X of current window, Y coordinate transformation to corresponding longitude and latitude on world map, so just obtained geographical position to be monitored.The analysis of cochannel in up channel being disturbed due to satellite is not to carry out continuously, but with the certain hour interval calculation once, there is the cut position error during data record simultaneously, therefore may there do not is the data message fully corresponding with geographical position to be monitored in database server, now need to be in database fast finding position immediate with it, and the users such as the star second of time, substar coordinate, interfering frequency and interference magnitude that return to this position relatively are concerned about the value of field.These values are presented at the right mouse inferior horn and follow in a prompting frame of ejection (prompting frame can arrange transparency).So, when the user needs the cochannel disturbed condition of a certain particular location of concrete inquiry, only need be on world map the right-click relevant position, just can follow the data such as the star second of time, substar coordinate, interfering frequency and interference magnitude that show relevant position at the right mouse inferior horn.In this way, the user just can monitor in the mode of " microcosmic " disturbed condition of a certain particular location.
In sum, the monitoring method that in satellite uplink channel provided by the invention, cochannel disturbs, by being provided, monitoring interference profile and monitoring fixed point disturb these two kinds of monitoring modes, both " macroscopic view " checked that in satellite uplink channel, cochannel disturbed in global distribution situation on the whole, can monitor its corresponding interference value from a certain particular location " microcosmic " again.
Obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention also is intended to comprise these changes and modification interior.
Claims (3)
1. the monitoring method that in a satellite uplink channel, cochannel disturbs, the data that this cochannel disturbs are stored in database server, it is characterized in that, said method comprising the steps of:
Passing of satelline interference analysis load is calculated the interior interference profile situation of up channel at regular intervals one time, and the data of record cochannel interference now, comprise the star second of time, substar coordinate, interfering frequency and interference magnitude, when satellite passes by, data are issued by down channel, and ground station receives data and stores database server into;
Load world map, and record described world map each position corresponding longitude and latitude;
Select monitoring mode, wherein, described monitoring mode comprises the monitoring interference profile and monitors fixed point and disturb;
If select the monitoring interference profile, level of interference thresholding and the corresponding color of each thresholding are set, and record sheet and field that from described database server, extraction needs, calculate the corresponding interference value of each longitude and latitude, then shown by corresponding color on described world map according to the interference value size;
If select the monitoring fixed point to disturb, obtain geographical position to be monitored, and in described database server the immediate position of fast finding and described geographical position to be monitored, then return to the disturbed condition of this position.
2. the monitoring method that in satellite uplink channel as claimed in claim 1, cochannel disturbs, is characterized in that, the data that described cochannel disturbs comprise the star second of time, substar coordinate, interfering frequency and interference magnitude.
3. the monitoring method that in satellite uplink channel as claimed in claim 1, cochannel disturbs, is characterized in that, by Ethernet, connects described database server.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010103593.6A CN101795164B (en) | 2010-01-29 | 2010-01-29 | Method for monitoring co-channel interference in satellite uplink channel |
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| CN201010103593.6A CN101795164B (en) | 2010-01-29 | 2010-01-29 | Method for monitoring co-channel interference in satellite uplink channel |
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| CN101795164B true CN101795164B (en) | 2014-01-08 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1124075A (en) * | 1994-01-11 | 1996-06-05 | 艾利森·Ge·流动通讯有限公司 | A cellular/satellite communications system with improved frequency re-use |
| CN1233376A (en) * | 1996-10-10 | 1999-10-27 | 垓技术公司 | Communication system using geographic position data |
| US6940452B2 (en) * | 2003-09-29 | 2005-09-06 | Northrop Grumman Corporation | Reducing co-channel interference in satellite communications systems by antenna re-pointing |
| US20060227894A1 (en) * | 2004-04-12 | 2006-10-12 | Lee Lin-Nan | Method and apparatus for minimizing co-channel interference |
-
2010
- 2010-01-29 CN CN201010103593.6A patent/CN101795164B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1124075A (en) * | 1994-01-11 | 1996-06-05 | 艾利森·Ge·流动通讯有限公司 | A cellular/satellite communications system with improved frequency re-use |
| CN1233376A (en) * | 1996-10-10 | 1999-10-27 | 垓技术公司 | Communication system using geographic position data |
| US6940452B2 (en) * | 2003-09-29 | 2005-09-06 | Northrop Grumman Corporation | Reducing co-channel interference in satellite communications systems by antenna re-pointing |
| US20060227894A1 (en) * | 2004-04-12 | 2006-10-12 | Lee Lin-Nan | Method and apparatus for minimizing co-channel interference |
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| CN101795164A (en) | 2010-08-04 |
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Application publication date: 20100804 Assignee: SHANGHAI OK MICRO AEROSPACE SCIENCE AND TECHNOLOGY CO., LTD. Assignor: Shanghai Engineering Center for Microsatellites Contract record no.: 2014310000178 Denomination of invention: Method for monitoring co-channel interference in satellite uplink channel Granted publication date: 20140108 License type: Exclusive License Record date: 20141203 |
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