CN109067450B - Satellite-borne relay SMA terminal system supporting short message - Google Patents
Satellite-borne relay SMA terminal system supporting short message Download PDFInfo
- Publication number
- CN109067450B CN109067450B CN201810621920.3A CN201810621920A CN109067450B CN 109067450 B CN109067450 B CN 109067450B CN 201810621920 A CN201810621920 A CN 201810621920A CN 109067450 B CN109067450 B CN 109067450B
- Authority
- CN
- China
- Prior art keywords
- sma
- satellite
- power amplifier
- telemetering
- remote control
- 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
Images
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
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18519—Operations control, administration or maintenance
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
- H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
Abstract
The invention discloses a satellite-borne relay SMA terminal system supporting a short message, which comprises a satellite-borne SMA transponder, an SMA power amplifier, an SMA duplexer and an SMA antenna, wherein the satellite-borne relay SMA terminal system comprises a satellite-borne SMA transponder, an SMA duplexer and an SMA antenna; the SMA responder receives the remote control signal, carries out frequency conversion, demodulation, decoding and descrambling, acquires remote control data and sends the remote control data to the back end for processing; coding, scrambling, modulating and frequency converting the telemetering data, and sending the telemetering data to an SMA power amplifier for signal amplification; the SMA power amplifier amplifies the telemetering signal sent by the SMA responder according to the requirement of a return communication link; the SMA duplexer completes the filtering and isolation of the telemetering signal and the remote control signal; the SMA antenna receives the remote control signal from the second generation relay satellite and transmits the remote control signal output by the SMA power amplifier to the second generation relay satellite through a space channel. The invention can support the two-way rapid communication between the satellite and the second-generation relay satellite, can send and record the short message telemetering of important information of the satellite for a long time, and has the advantages of high reliability, simple structure and convenient use.
Description
Technical Field
The invention relates to the field of spaceflight, in particular to a satellite-borne relay SMA terminal system supporting a short message.
Background
The SSA measurement and control link of the first-generation and second-generation relay satellites in China uses a parabolic antenna to communicate with the user satellite, the antenna needs to be rotated to point to the user satellite before communication, the communication link can be established, and the time consumption of the link establishment process is long. The second-generation relay satellite SMA measurement and control link uses a phased array antenna to communicate with the user satellite, and can establish a communication link with the user satellite through the pointing of an electric control wave beam, and the link establishment process is rapid.
The satellite-borne relay SMA terminal system supporting the short message can quickly realize the communication between the user satellite and the relay satellite, thereby quickly responding to the ground remote control command. The short message mode can work on orbit for a long time of 24 hours, informs the relay satellite system user of the real-time satellite state within a period of several seconds, and has extremely high timeliness and long-term working characteristics compared with the conventional satellite-borne SSA relay communication terminal.
Disclosure of Invention
The satellite-borne relay SMA terminal system supporting the short message can support the two-way rapid communication between the satellite and the second-generation relay satellite, can send and record the short message telemetering of important information of the satellite for a long time, and has the advantages of high reliability, simple structure and convenient use.
In order to achieve the above object, the present invention provides a satellite-borne relay SMA terminal system supporting short messages, including: the system comprises an SMA responder, an SMA power amplifier, an SMA duplexer and an SMA antenna, wherein the SMA responder is connected with the SMA power amplifier and the SMA duplexer; the SMA power amplifier is connected with the SMA duplexer; the SMA duplexer is connected with the SMA antenna;
the SMA responder receives the remote control signal, carries out frequency conversion, demodulation, decoding and descrambling, acquires remote control data and sends the remote control data to the back end for processing; coding, scrambling, modulating and frequency converting the telemetering data, and sending the telemetering data to an SMA power amplifier for signal amplification;
the SMA power amplifier amplifies the telemetering signal sent by the SMA responder according to the requirement of a return communication link;
and the SMA duplexer completes the filtering and isolation of the telemetering signal and the remote control signal.
The SMA antenna receives the remote control signal from the second generation relay satellite and transmits the remote control signal output by the SMA power amplifier to the second generation relay satellite through a space channel.
Preferably, the SMA transponder has two telemetering modes, one is continuous telemetering, and the telemetering signal is directly sent to the SMA power amplifier for amplification; and secondly, short messages modulate the SMA power amplifier according to a certain duty ratio and control the amplification and output of the telemetering signals.
Preferably, the SMA power amplifier is in a short message mode, and a driving circuit of the SMA power amplifier receives a modulation signal of the SMA transponder, controls the negative voltage on-off of the grid electrode of the P-MOS tube and the positive voltage power-up of the drain electrode, and feeds power to the power amplifier tube for amplifying the short message telemetering signal. Therefore, in the short message mode, the relay satellite system can work according to a certain duty ratio in a period of a plurality of seconds to inform the relay satellite system user of the real-time state of the satellite, and because the power amplifier has short starting time, the average power consumption and the average heat consumption are reduced, and the relay satellite system can work on the orbit for a long time of 24 hours.
In summary, compared with the prior art, the invention has the following beneficial effects:
the satellite remote monitoring system can support two-way rapid communication between the satellite and the second-generation relay satellite, can send and record short message remote monitoring of important information of the satellite in a long-term and high-timeliness manner, and has the advantages of high reliability, simple structure and convenience in use.
Drawings
FIG. 1 is a schematic diagram of a satellite-borne relay SMA terminal system supporting short messages according to the present invention;
fig. 2 is a schematic diagram of a continuous telemetry and short message information path according to an embodiment of the invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will aid those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any manner. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
Referring to fig. 1, a satellite-borne relay SMA terminal system supporting short messages includes: the system comprises an SMA responder, an SMA power amplifier, an SMA duplexer and an SMA antenna, wherein the SMA responder is connected with the SMA power amplifier and the SMA duplexer; the SMA power amplifier is connected with the SMA duplexer; and the SMA duplexer is connected with the SMA antenna.
Specifically, the SMA responder receives the remote control signal, performs frequency conversion, demodulation, decoding and descrambling, acquires remote control data and sends the remote control data to the back end for processing; coding, scrambling, modulating and frequency converting the telemetering data, and sending the telemetering data to an SMA power amplifier for signal amplification; the SMA power amplifier amplifies the telemetering signal sent by the SMA responder according to the requirement of a return communication link; the SMA duplexer completes the filtering and isolation of the telemetering signal and the remote control signal; the SMA antenna receives the remote control signal from the second generation relay satellite and transmits the remote control signal output by the SMA power amplifier to the second generation relay satellite through a space channel.
As shown in fig. 2, the SMA responder has two telemetry modes, the first mode is continuous telemetry, the telemetry signal is directly sent to the SMA power amplifier for amplification, the SMA power amplifier is responsible for amplifying the telemetry power amplifier tube and is powered up to work all the time, and the output telemetry signal is continuous. The method has the advantages of ensuring the continuity of remote measurement, and having the defects that the power consumption and the heat consumption of the power amplifier are too large, the power amplifier cannot work for a long time, and the method can be used for emergency communication and the like.
The second mode is short message, the SMA responder additionally outputs a driving control signal, the SMA power amplifier is modulated according to a certain duty ratio, and the amplification and the output of the telemetering signal are controlled. When the SMA power amplifier is in a short message mode, a driving circuit of the SMA power amplifier receives a modulation signal of the SMA transponder, controls the negative pressure on-off of a grid electrode of the P-MOS tube and the positive pressure power-up of a drain electrode, and feeds power to the power amplifier tube for amplifying the short message telemetering signal. This has the disadvantage that the transmission of the telemetry signal is intermittent, with transmission occurring every few seconds. The method has the advantages of low average power consumption and heat consumption, and can work on the track for a long time in 24 hours, and is a default working mode. Therefore, important telemetering of the user satellite can be continuously transmitted to the ground through the second-generation relay satellite in a short period.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (1)
1. A satellite-borne relay SMA terminal system supporting short messages is characterized by comprising: SMA responder, SMA power amplifier, SMA duplexer and SMA antenna,
the SMA responder receives the remote control signal, carries out frequency conversion, demodulation, decoding and descrambling, acquires remote control data and sends the remote control data to the rear end for processing; coding, scrambling, modulating and frequency converting the telemetering data, and sending the telemetering data to an SMA power amplifier for signal amplification;
the SMA power amplifier amplifies the telemetering signal sent by the SMA transponder according to the requirement of a return communication link;
the SMA duplexer completes the filtering and isolation of the telemetering signal and the remote control signal;
the SMA antenna receives a remote control signal from the second-generation relay satellite and transmits a remote measurement signal output by the SMA power amplifier to the second-generation relay satellite through a space channel;
the SMA transponder has two telemetry modes:
1) continuous telemetering, directly sending the telemetered signal to an SMA power amplifier for amplification;
2) the short message modulates the SMA power amplifier according to a certain duty ratio, and controls the amplification and output of the telemetering signal;
and the driving circuit of the SMA power amplifier receives a modulation signal of the SMA transponder under a short message mode, controls the negative pressure on-off of the grid electrode of the P-MOS tube and the positive pressure power-up of the drain electrode, and feeds power to the power amplifier tube for amplifying the short message telemetering signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810621920.3A CN109067450B (en) | 2018-06-15 | 2018-06-15 | Satellite-borne relay SMA terminal system supporting short message |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810621920.3A CN109067450B (en) | 2018-06-15 | 2018-06-15 | Satellite-borne relay SMA terminal system supporting short message |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109067450A CN109067450A (en) | 2018-12-21 |
| CN109067450B true CN109067450B (en) | 2020-10-09 |
Family
ID=64820344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810621920.3A Active CN109067450B (en) | 2018-06-15 | 2018-06-15 | Satellite-borne relay SMA terminal system supporting short message |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109067450B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111698674B (en) * | 2020-05-22 | 2021-09-17 | 北京空间技术研制试验中心 | Operation monitoring and emergency processing system based on relay satellite and design method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002035866A2 (en) * | 2000-10-27 | 2002-05-02 | Cellemetry Llc | Interconnect system and method for multiple protocol short message services |
| US6539493B1 (en) * | 1998-12-08 | 2003-03-25 | Ubicom Gmbh | Method of updating the system time of a data processor system |
| CN104714239A (en) * | 2015-03-31 | 2015-06-17 | 北京汇美电子技术有限公司 | Beidou satellite atmosphere moisture content measuring instrument |
| CN105915264A (en) * | 2016-05-20 | 2016-08-31 | 中国电子科技集团公司第十研究所 | SMA link double spreading code signal multiplexing method |
| CN107064976A (en) * | 2017-04-01 | 2017-08-18 | 航天恒星空间技术应用有限公司 | The Big Dipper No. two positioning timing time service terminals, orientation method, localization method, communication means |
-
2018
- 2018-06-15 CN CN201810621920.3A patent/CN109067450B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6539493B1 (en) * | 1998-12-08 | 2003-03-25 | Ubicom Gmbh | Method of updating the system time of a data processor system |
| WO2002035866A2 (en) * | 2000-10-27 | 2002-05-02 | Cellemetry Llc | Interconnect system and method for multiple protocol short message services |
| CN104714239A (en) * | 2015-03-31 | 2015-06-17 | 北京汇美电子技术有限公司 | Beidou satellite atmosphere moisture content measuring instrument |
| CN105915264A (en) * | 2016-05-20 | 2016-08-31 | 中国电子科技集团公司第十研究所 | SMA link double spreading code signal multiplexing method |
| CN107064976A (en) * | 2017-04-01 | 2017-08-18 | 航天恒星空间技术应用有限公司 | The Big Dipper No. two positioning timing time service terminals, orientation method, localization method, communication means |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109067450A (en) | 2018-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107332605B (en) | Measurement and control method based on Ka-S frequency band relay integrated measurement and control system | |
| CN109067450B (en) | Satellite-borne relay SMA terminal system supporting short message | |
| US5678228A (en) | Satellite terminal with sleep mode | |
| US4881081A (en) | Antenna orientation adjusting device for earth station | |
| JPH04252625A (en) | Method and system for remote measurement | |
| CN111147128A (en) | Satellite service data real-time downloading system suitable for global scope | |
| CN103501204A (en) | X-waveband output power telemetry collecting device | |
| CN115037349B (en) | Wireless dual-band satellite communication analog repeater | |
| CN112217583B (en) | Embedded self-checking system and method for on-orbit wireless communication equipment | |
| CN112564783B (en) | Resource-saving laser radio frequency integrated communication method | |
| JP2007511974A (en) | Apparatus and method for switch control of satellite repeater for multi-beam communication | |
| GB611083A (en) | Improvements in or relating to intelligence relaying systems | |
| US3277373A (en) | Serrodyne frequency converter reentrant amplifier system | |
| CN204442381U (en) | A kind of super low-power consumption infrared communication system based on PFM mode | |
| CN212434830U (en) | Antenna structure and communication terminal | |
| CN104980208A (en) | Method for establishing a radiofrequency link | |
| CN210958376U (en) | Underwater acoustic communication relay assembly and water supply system | |
| CN213094199U (en) | Aircraft for adjacent space | |
| CN204180078U (en) | A kind of 60M Transmission System of Radar Data equipment | |
| CN115396006B (en) | Laser microwave hybrid inter-satellite link system | |
| CN114900222B (en) | Satellite data transmission system | |
| CN114513258B (en) | PPM signal transmitting system with variable order and speed in deep space laser communication | |
| JP7466388B2 (en) | Observation systems and satellites | |
| CN213958251U (en) | Wireless repeater based on ultrasonic transmission technology | |
| CN212183666U (en) | Wireless receiving device, control device, laser television and wireless transmitting and receiving system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |