CN115225132A - Radio frequency forbidding control method and system of airborne satellite communication system - Google Patents
Radio frequency forbidding control method and system of airborne satellite communication system Download PDFInfo
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Abstract
The application discloses a radio frequency banning sending control method and a radio frequency banning sending control system of an airborne satellite communication system, wherein the airborne satellite communication system comprises a plurality of baseband board cards adopting different communication control standards and corresponding banning sending control modules; the method comprises the following steps: acquiring real-time position information of an airborne satellite communication system and a height map database of an airport; calling each forbidding control module, and judging whether the radio frequency is forbidden to be transmitted currently or not based on the real-time position information and the height map database according to the communication control standard corresponding to each forbidding control module; judging whether each forbidding control module judges that the radio frequency is forbidden to be transmitted or not; if yes, generating a radio frequency indicating signal for indicating that the transmitting frequency is forbidden; if not, generating a radio frequency indicating signal for indicating that the radio frequency is not forbidden; and controlling the antenna to be switched on or off based on the radio frequency indication signal. The method and the system automatically and efficiently solve the problem of radio frequency banning of the multimode structure satellite communication system, ensure the communication function of the aircraft as much as possible, and improve the flight safety.
Description
Technical Field
The application relates to the technical field of satellite communication, in particular to a radio frequency forbidding control method and system of an airborne satellite communication system.
Background
Radio frequency transmission of an airborne satellite communication system (called a satellite communication system for short) is limited by local policy and regulation, and radio frequency transmission can be allowed only after requirements such as certain regional height difference are met. When a multi-protocol satellite communication system is adopted, the policy and regulation requirements of different satellite communication systems are different, and compared with a single-protocol satellite communication system, the radio frequency emission control problem is more complicated. In view of this, a great deal of attention is needed to those skilled in the art to automatically and efficiently implement the rf disable control.
Disclosure of Invention
The application aims to provide a radio frequency forbidding control method and system of an airborne satellite communication system, so as to automatically and efficiently solve the problem of radio frequency forbidding of the satellite communication system with a multimode architecture.
In order to solve the technical problem, on one hand, the application discloses a radio frequency forbidding control method of an airborne satellite communication system, wherein the airborne satellite communication system comprises a plurality of baseband board cards adopting different communication control standards and corresponding forbidding control modules thereof; the method comprises the following steps:
acquiring real-time position information of the airborne satellite communication system and an altitude map database of an airport;
calling each forbidding control module, and judging whether radio frequency forbidding is currently carried out or not according to the communication control standard corresponding to each forbidding control module and the real-time position information and the height map database;
judging whether each forbidding control module judges that the radio frequency is forbidden to be transmitted or not;
if yes, generating a radio frequency indicating signal for indicating that the transmitting frequency is forbidden;
if not, generating a radio frequency indicating signal for indicating that the radio frequency is not forbidden;
and controlling the antenna to be switched on or switched off based on the radio frequency indication signal.
Optionally, the controlling the turning on or off of the antenna based on the radio frequency indication signal includes:
acquiring the radio frequency indication signal, a satellite ground station control signal, a deflection angle change overload signal and an antenna fault signal;
if any signal indicates that the transmitting frequency is forbidden, controlling the antenna to be closed;
and if no signal indicates that the radio frequency is forbidden, controlling the antenna to be started.
Optionally, the determining, based on the real-time location information and the altitude map database, whether to prohibit sending radio frequency according to the communication control standards respectively corresponding to the real-time location information and the altitude map database includes:
judging whether the height difference between the airborne satellite communication system and the airport is greater than a preset height specified by the communication control standard;
if yes, judging that the radio frequency is not forbidden to be sent;
if not, the radio frequency is judged to be forbidden.
Optionally, the determining whether a height difference between the onboard satellite communication system and an airport is greater than a preset height specified by the communication control standard includes:
judging whether the airport enters the airspace range of the airport according to the longitude and latitude information in the real-time position information;
and if so, executing the step of judging whether the height difference between the airborne satellite communication system and the airport is greater than the preset height specified by the communication control standard.
Optionally, after the forbidding control module determines that the transmission frequency should not be forbidden, the method further includes:
adjusting the preset height reduction within a first preset time;
after the forbidding control module judges that the transmission frequency should be forbidden, the method further comprises the following steps:
and adjusting the preset height increase within a second preset time.
Optionally, the invoking each forbidding control module, and determining whether the radio frequency should be forbidden to be transmitted currently based on the real-time location information and the altitude map database according to the communication control standard corresponding to each forbidding control module respectively includes:
judging whether the airport has a radio frequency banning requirement or not based on the altitude map database;
if yes, executing the step of calling each forbidding control module, and judging whether radio frequency transmission should be forbidden at present based on the real-time position information and the height map database according to the communication control standard corresponding to each forbidding control module;
if not, judging whether the height difference between the airborne satellite communication system and the airport is greater than the preset transceiving height of the baseband board card;
and if the height difference is not larger than the preset transceiving height, controlling the transmitting power of the antenna to be reduced.
Optionally, the controlling the transmission power reduction of the antenna includes:
the transmission power is reduced by limiting the video and picture transmission in the upstream communication.
Optionally, the controlling the transmission power reduction of the antenna includes:
determining a reduction value of the transmission power based on the following power adjustment formula:
EIRP d ＝10·log(m/n)；
wherein, EIRP d Is a reduction value of the transmission power; m is the transmission rate corresponding to the maximum transmitting power; n is the lowest transmission rate required by the current service.
In another aspect, the present application further discloses a radio frequency banning and sending control system of an airborne satellite communication system, including:
the data acquisition module is used for acquiring the real-time position information of the airborne satellite communication system and an altitude map database of an airport;
the forbidding control modules respectively correspond to a plurality of baseband board cards adopting different communication control standards in the airborne satellite communication system and are used for judging whether radio frequency transmission should be forbidden currently or not based on the real-time position information and the height map database according to the respective corresponding communication control standards;
the radio frequency forbidding output module is connected with each forbidding control module and used for outputting a radio frequency indicating signal for indicating forbidding transmission frequency when each forbidding control module judges that the radio frequency is to be forbidding transmitted; when the forbidding control module judges that the radio frequency is not forbidden, outputting a radio frequency indicating signal for indicating that the radio frequency is not forbidden;
and the radio frequency transmission forbidding processing module is used for controlling the opening or closing of the antenna based on the radio frequency indication signal.
Optionally, the data acquisition module is connected to an airborne inertial reference system or a navigation positioning sensor, and is specifically configured to acquire real-time position information of the airborne satellite communication system from the airborne inertial reference system or the navigation positioning sensor.
The radio frequency forbidding control method and the radio frequency forbidding control system of the airborne satellite communication system have the advantages that: according to the method and the system, the forbidding control modules of the satellite communication system are used for carrying out forbidding and judging respectively, and the radio frequency indicating signal for indicating the forbidding transmission frequency is generated only when all the forbidding control modules judge that the transmission of the radio frequency is forbidden, so that the problem of the radio frequency forbidding of the satellite communication system with the multimode framework is automatically and efficiently solved, the communication function of the aircraft is guaranteed as much as possible, and the flight safety is improved.
Drawings
In order to more clearly illustrate the technical solutions in the prior art and the embodiments of the present application, the drawings used in the description of the prior art and the embodiments of the present application will be briefly described below. Of course, the following description of the drawings related to the embodiments of the present application is only a part of the embodiments of the present application, and it will be apparent to those skilled in the art that other drawings may be obtained from the provided drawings without any creative effort, and the obtained other drawings also belong to the protection scope of the present application.
Fig. 1 is a flowchart of a radio frequency banning control method of an airborne satellite communication system according to an embodiment of the present application;
fig. 2 is a block diagram of a radio frequency disable and transmit control system of an airborne satellite communication system according to an embodiment of the present application.
Detailed Description
The core of the application is to provide a radio frequency forbidding control method and a radio frequency forbidding control system of an airborne satellite communication system, so as to automatically and efficiently solve the problem of radio frequency forbidding of the satellite communication system with a multimode architecture.
In order to more clearly and completely describe the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, an embodiment of the present application discloses a radio frequency forbidding control method for an onboard satellite communication system, where the onboard satellite communication system includes a plurality of baseband boards using different communication control standards and corresponding forbidding control modules; the method mainly comprises the following steps:
s101: and acquiring real-time position information of the airborne satellite communication system and an altitude map database of the airport.
Typically, large aircraft (e.g., airplanes) are loaded with satellite communication systems to communicate with ground control stations and the like. In the multimode architecture, various satellite communication systems are specifically loaded on the aircraft for selective use, and each satellite communication system is correspondingly provided with a baseband board card. Each baseband board card is independently provided with a special forbidding control module for judging whether the radio frequency is forbidden to be transmitted according to the communication control standard of the satellite system in which the baseband board card is located.
When each trigger forbidding control module judges, the real-time position information of the airborne inertial reference system needs to be acquired, specifically including longitude and latitude information and height information, and the real-time position information can be acquired from the airborne inertial reference system or the airborne navigation positioning sensor.
The altitude map database of the airport records important information of a series of airports, including airport serial numbers, airport longitude and latitude, airport altitude, airport low-altitude flight radius and the like. By comparing the real-time position information of the airborne inertial reference system with the relevant data information of the airport, whether the radio frequency transmission is forbidden can be judged according to the corresponding communication control standard.
S102: and calling each forbidding control module, and judging whether the radio frequency is forbidden to be transmitted currently or not based on the real-time position information and the height map database according to the respective corresponding communication control standard.
S103: judging whether each forbidding control module judges that the radio frequency is forbidden to be transmitted or not; if yes, entering S104; if not, the process proceeds to S105.
S104: generating a radio frequency indication signal for indicating that the transmission frequency is forbidden; the process proceeds to S106.
S105: generating a radio frequency indication signal for indicating that the radio frequency is not forbidden; the process proceeds to S106.
S106: and controlling the antenna to be switched on or off based on the radio frequency indication signal.
Specifically, if all the forbidding control modules determine that the radio frequency should not be transmitted, the correspondingly generated radio frequency indication signal is specifically used for indicating the forbidding of the transmission frequency; if at least one forbidding control module judges that the radio frequency can be transmitted, the correspondingly generated radio frequency indicating signal is specifically used for indicating that the video is not forbidden.
Therefore, according to the radio frequency forbidding control method of the airborne satellite communication system, forbidding and sending judgment is carried out by using the forbidding and sending control modules of the satellite communication systems respectively, and the radio frequency indicating signal for indicating the forbidding and sending frequency is generated only when all the forbidding and sending control modules judge that the radio frequency is forbidden to send, so that the problem of radio frequency forbidding and sending of the satellite communication system with the multimode architecture is automatically and efficiently solved, the communication function of an aircraft is guaranteed as much as possible, and the flight safety is improved.
As a specific embodiment, the method for controlling radio frequency forbidding of an airborne satellite communication system according to the embodiments of the present application, based on the above contents, respectively according to respective corresponding communication control standards, and based on real-time location information and an altitude map database, determines whether radio frequency forbidding should be currently performed, including:
judging whether the height difference between the airborne satellite communication system and the airport is greater than a preset height specified by a communication control standard or not;
if yes, judging that the radio frequency is not forbidden to be sent;
if not, the radio frequency is judged to be forbidden.
As a specific embodiment, the method for controlling radio frequency banning of an airborne satellite communication system according to the embodiment of the present application, based on the above contents, determines whether a height difference between the airborne satellite communication system and an airport is greater than a preset height specified by a communication control standard, and includes:
judging whether to enter an airspace range of the airport according to longitude and latitude information in the real-time position information;
and if so, executing a step of judging whether the height difference between the airborne satellite communication system and the airport is greater than the preset height specified by the communication control standard.
Specifically, the real-time position information includes not only height information but also longitude and latitude information of the airborne satellite communication system. Therefore, after the embodiment specifically judges that the vehicle enters the airspace range above the airport according to the longitude and latitude information, the height difference between the airborne satellite communication system and the airport is used for judging whether the radio frequency is forbidden to be sent.
As a specific embodiment, the radio frequency forbidding control method of the airborne satellite communication system provided in the embodiment of the present application, based on the above contents, further includes, after the forbidding control module determines that the transmission frequency should not be forbidden:
adjusting the preset height reduction within a first preset time;
after the forbidding control module judges that the transmission frequency should be forbidden, the method further comprises the following steps:
and adjusting the preset height increase within a second preset time.
Specifically, considering that the flying height of the aircraft may slightly fluctuate in actual flight, the present embodiment also ensures the stability of the rf disable determination result by adjusting the preset height.
If the altitude difference between the onboard satellite system and the airport is greater than the preset altitude, the forbidding control module determines that the radio frequency transmission should not be forbidden, and in order to avoid changing the judgment result when the aircraft slightly descends, the preset altitude can be specifically adjusted to be small in the embodiment. For example, if the original preset height is B, a timer can be set, and the preset height is modified to be B-B1 within a first preset time; wherein B1 is a positive number, for example 500 m.
If the altitude difference between the onboard satellite system and the airport is not greater than the preset altitude, the forbidding control module determines that the radio frequency transmission should be forbidden, and in order to avoid changing the determination result when the aircraft slightly ascends, the preset altitude may be specifically increased in the embodiment. For example, if the original preset height is B, a timer may be set, and the preset height is modified to be B + B2 within a second preset time; wherein B2 is a positive number, for example 500 m.
As a specific embodiment, the method for controlling radio frequency forbidding of an airborne satellite communication system according to the embodiment of the present application, based on the above contents, includes:
acquiring a radio frequency indication signal, a satellite ground station control signal, a deflection angle change overload signal and an antenna fault signal;
if any signal indicates that the transmitting frequency is forbidden, controlling the antenna to be closed;
and if no signal indicates that the radio frequency is forbidden, controlling the antenna to be started.
Specifically, besides the radio frequency indication signal obtained by the forbidding control module based on the height difference between the onboard satellite system and the airport, other signals also participate in the decision to finally forbid transmitting the radio frequency. The satellite ground station control signal is a control signal indicating whether the ground station forbids sending radio frequency; the deflection angle change overload signal is a signal indicating whether the deflection angle change is overload and abnormal, if the deflection angle change is overload, the function of the antenna is abnormal, and the transmitting frequency should be forbidden; the antenna failure signal is a signal indicating whether the antenna is failed, and once the antenna is found to be failed, the radio frequency should be disabled.
Assuming that the above four signals are 0 when the radio frequency is instructed to be prohibited and 1 when the radio frequency is instructed to be normally transmitted, the final control antenna on/off control signal can be obtained from the four signals through the and gate.
As a specific embodiment, the method for controlling forbidding radio frequency transmission of an onboard satellite communication system according to the embodiment of the present application calls each forbidding control module based on the above content, and judges whether radio frequency transmission should be forbidden based on real-time location information and an altitude map database according to respective corresponding communication control standards, including:
judging whether the airport has radio frequency banning requirements or not based on an altitude map database;
if yes, executing the step of calling each forbidding control module, and judging whether the radio frequency is forbidden to be transmitted currently or not based on the real-time position information and the height map database according to the communication control standard corresponding to each forbidding control module;
if not, judging whether the height difference between the airborne satellite communication system and the airport is greater than the preset transceiving height of the baseband board card;
and if the height difference is not greater than the preset transceiving height, controlling the transmitting power of the antenna to be reduced.
Specifically, it is easily understood that the radio frequency prohibition judgment by using each prohibition control module is performed under the condition that the prohibition requirement is locally present in the airport; if the local no forbidding request exists in the airport, the radio frequency forbidding judgment is not needed, and the transmitting power can be reduced to ensure the safety.
Specifically, according to a preset transceiving height of the baseband board card, when a height difference between the onboard satellite system and the airport is lower than the preset transceiving height, the transmitting power needs to be reduced; when the height difference is larger than the preset transceiving height, the radio frequency can be normally transmitted.
As a specific embodiment, the radio frequency forbidding control method of an airborne satellite communication system provided in the embodiment of the present application controls the transmission power of an antenna to be reduced on the basis of the foregoing content, and includes:
the transmission power is reduced by limiting video and picture transmission in upstream communication.
Specifically, the present embodiment may only perform transmission power control on the uplink service, and ensure that the downlink transmission rate is unchanged, so that all downlink signal data can be transmitted normally. In addition to video and pictures, some large files may be restricted from transmission in the upstream service.
As a specific embodiment, the radio frequency forbidding control method of an airborne satellite communication system provided in the embodiment of the present application controls the transmission power of an antenna to be reduced on the basis of the foregoing content, and includes:
determining a reduction value of the transmit power based on the following power adjustment formula:
EIRP d ＝10·log(m/n)；
wherein, EIRP d Is a reduction value of the transmission power; m is the transmission rate corresponding to the maximum transmitting power; n is the lowest transmission rate required by the current service.
Referring to fig. 2, an embodiment of the present application discloses a radio frequency forbidding control system of an airborne satellite communication system, which mainly includes:
the data acquisition module 201 is used for acquiring real-time position information of an onboard satellite communication system and a height map database of an airport;
the forbidding control modules 202 are respectively corresponding to a plurality of baseband board cards adopting different communication control standards in the airborne satellite communication system and are used for judging whether the radio frequency is forbidden to be transmitted currently or not based on the real-time position information and the height map database according to the respective corresponding communication control standards;
the radio frequency forbidding output module 203 is connected with each forbidding control module 202 and is used for outputting a radio frequency indicating signal for indicating the forbidding transmission frequency when each forbidding control module 202 judges that the transmission of the radio frequency should be forbidden; when the forbidding control module 202 judges that the radio frequency should not be forbid, outputting a radio frequency indicating signal for indicating that the radio frequency should not be forbid;
and the radio frequency disabling processing module 204 is configured to control the antenna to be turned on or off based on the radio frequency indication signal.
Therefore, the radio frequency forbidding control system of the airborne satellite communication system disclosed by the embodiment of the application utilizes the forbidding control modules of the satellite communication systems to respectively carry out forbidding judgment, and generates the radio frequency indicating signal for indicating the forbidding transmitting frequency when all the forbidding control modules judge that the radio frequency is forbidden to be transmitted, so that the problem of radio frequency forbidding of the multimode satellite communication system is automatically and efficiently solved, the communication function of an aircraft is ensured as much as possible, and the flight safety is improved.
For the specific content of the radio frequency forbidding control system of the onboard satellite communication system, reference may be made to the foregoing detailed description of the radio frequency forbidding control method of the onboard satellite communication system, and details thereof are not repeated here.
As a specific embodiment, in the radio frequency forbidding control System of the airborne satellite communication System disclosed in the embodiment of the present application, on the basis of the above content, the data obtaining module 201 is connected to an airborne Inertial Reference System (IRS) 205 or a navigation positioning sensor 206, and is specifically configured to obtain real-time position information of the airborne satellite communication System from the airborne Inertial Reference System 205 or the navigation positioning sensor 206.
The Navigation and Positioning sensor 206 may be a Global Navigation Satellite System (GNSS) or a Global Positioning System (GPS).
As a specific embodiment, in the radio frequency forbidding control system of the airborne satellite communication system disclosed in the embodiment of the present application, on the basis of the above content, when the radio frequency forbidding processing module 204 controls the antenna to be turned on or off based on the radio frequency indication signal, the radio frequency forbidding processing module is specifically configured to:
acquiring a radio frequency indication signal, a satellite ground station control signal, a deflection angle change overload signal and an antenna fault signal; if any signal indicates that the transmitting frequency is forbidden, controlling the antenna to be closed; and if no signal indicates that the radio frequency is forbidden, controlling the antenna to be started.
As a specific embodiment, in the radio frequency forbidding control system of the onboard satellite communication system disclosed in the embodiment of the present application, on the basis of the above contents, when each forbidding control module 202 determines whether the radio frequency is to be forbidden at present based on the real-time location information and the altitude map database according to the respective corresponding communication control standard, the radio frequency forbidding control system is specifically configured to:
judging whether the height difference between the airborne satellite communication system and the airport is greater than a preset height specified by a communication control standard or not; if yes, judging that the radio frequency is not forbidden to be sent; if not, the radio frequency is judged to be forbidden.
As a specific embodiment, on the basis of the foregoing, each of the forbidding control modules 202 of the radio frequency forbidding control system of the airborne satellite communication system disclosed in the embodiment of the present application is specifically configured to, when determining whether a height difference between the airborne satellite communication system and the airport is greater than a preset height specified by the communication control standard:
judging whether the airport enters an airspace range according to longitude and latitude information in the real-time position information; if so, judging whether the height difference between the airborne satellite communication system and the airport is greater than a preset height specified by a communication control standard.
As a specific embodiment, in the radio frequency banning control system of the airborne satellite communication system disclosed in the embodiment of the present application, on the basis of the foregoing content, the banning control module 202 is further configured to:
adjusting the preset height reduction for a first preset time after determining that the transmission frequency should not be disabled; the preset height increase adjustment is made for a second preset time after the determination that the transmission frequency should be disabled.
As a specific embodiment, the radio frequency forbidding control system of the airborne satellite communication system disclosed in the embodiment of the present application further includes, on the basis of the foregoing content, a power adjusting module 207 connected to the data acquiring module 201, and is specifically configured to:
judging whether the airport has radio frequency forbidden sending requirements or not based on an altitude map database; if yes, each forbidding control module 202 judges whether the radio frequency is forbidden to be transmitted currently or not based on the real-time position information and the altitude map database according to the corresponding communication control standard; if not, judging whether the height difference between the airborne satellite communication system and the airport is greater than the preset transceiving height of the baseband board card; and if the height difference is not greater than the preset transceiving height, controlling the transmitting power of the antenna to be reduced.
As a specific embodiment, on the basis of the foregoing, the radio frequency forbidding control system of the airborne satellite communication system disclosed in the embodiment of the present application, when the power adjustment module 207 controls the transmission power of the antenna to decrease, is specifically configured to:
the transmission power is reduced by limiting video and picture transmission in upstream communication.
As a specific embodiment, on the basis of the foregoing, when the power adjusting module 207 controls the transmission power of the antenna to decrease, the radio frequency forbidding control system of the airborne satellite communication system disclosed in the embodiment of the present application is specifically configured to:
determining a reduction value of the transmission power based on the following power adjustment formula:
EIRP d ＝10·log(m/n)；
wherein, EIRP d Is a reduced value of the transmission power; m is the transmission rate corresponding to the maximum transmitting power; n is the lowest transmission rate required by the current service.
The embodiments in the present application are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the equipment disclosed by the embodiment, the description is relatively simple because the equipment corresponds to the method disclosed by the embodiment, and the relevant parts can be referred to the method part for description.
It is further noted that, throughout this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The technical solutions provided in the present application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, without departing from the principle of the present application, the present application can also make several improvements and modifications, and those improvements and modifications also fall into the protection scope of the present application.
Claims (10)
1. A radio frequency forbidding control method of an airborne satellite communication system is characterized in that the airborne satellite communication system comprises a plurality of baseband board cards adopting different communication control standards and corresponding forbidding control modules; the method comprises the following steps:
acquiring real-time position information of the airborne satellite communication system and an altitude map database of an airport;
calling each forbidding control module, and judging whether radio frequency forbidding is currently carried out or not according to the communication control standard corresponding to each forbidding control module and the real-time position information and the height map database;
judging whether each forbidding control module judges that the radio frequency is forbidden to be transmitted or not;
if yes, generating a radio frequency indicating signal for indicating that the transmitting frequency is forbidden;
if not, generating a radio frequency indicating signal for indicating that the radio frequency is not forbidden to be transmitted;
and controlling the antenna to be switched on or off based on the radio frequency indication signal.
2. The RF disable control method of claim 1, wherein the controlling of the antenna to be turned on or off based on the RF indication signal comprises:
acquiring the radio frequency indication signal, the satellite ground station control signal, the deflection angle change overload signal and the antenna fault signal;
if any signal indicates that the transmitting frequency is forbidden, controlling the antenna to be closed;
and if no signal indicates that the radio frequency is forbidden, controlling the antenna to be started.
3. The method according to claim 1, wherein the determining whether radio frequency transmission should be prohibited currently based on the real-time location information and the height map database according to the communication control standards respectively corresponding thereto comprises:
judging whether the height difference between the airborne satellite communication system and the airport is greater than a preset height specified by the communication control standard;
if yes, judging that the radio frequency is not forbidden to be sent;
if not, the radio frequency is judged to be forbidden.
4. The radio frequency banning control method according to claim 3, wherein the determining whether the altitude difference between the onboard satellite communication system and an airport is greater than a preset altitude specified by the communication control standard includes:
judging whether the airport enters the airspace range of the airport according to the longitude and latitude information in the real-time position information;
and if so, executing the step of judging whether the height difference between the airborne satellite communication system and the airport is greater than the preset height specified by the communication control standard.
5. The radio frequency disable control method of claim 3, wherein after the disable control module determines that the transmission frequency should not be disabled, further comprising:
adjusting the preset height reduction within a first preset time;
after the forbidding control module judges that the transmission frequency should be forbidden, the method further comprises the following steps:
and adjusting the preset height increase within a second preset time.
6. The radio frequency forbidding control method according to any one of claims 1 to 5, wherein the invoking of each forbidding control module and the determining of whether the radio frequency is to be forbidden currently based on the real-time location information and the altitude map database according to the communication control standard corresponding thereto respectively comprises:
judging whether the airport has a radio frequency banning requirement or not based on the altitude map database;
if yes, executing the step of calling each forbidding control module, and judging whether radio frequency is forbidden to be sent currently or not based on the real-time position information and the height map database according to the communication control standard corresponding to each forbidding control module;
if not, judging whether the height difference between the airborne satellite communication system and the airport is greater than the preset transceiving height of the baseband board card;
and if the height difference is not larger than the preset transceiving height, controlling the transmitting power of the antenna to be reduced.
7. The RF keep-out control method of claim 6, wherein the controlling the transmission power of the antenna to be reduced comprises:
the transmission power is reduced by limiting video and picture transmission in upstream communication.
8. The RF keep-out control method of claim 6, wherein the controlling the transmission power of the antenna to decrease comprises:
determining a reduction value of the transmit power based on the following power adjustment formula:
EIRP d ＝10·log(m/n)；
wherein, EIRP d Is a reduced value of the transmission power; m is the transmission rate corresponding to the maximum transmitting power; n is the lowest transmission rate required by the current service.
9. A radio frequency banning and sending control system of an airborne satellite communication system is characterized by comprising:
the data acquisition module is used for acquiring the real-time position information of the airborne satellite communication system and an altitude map database of an airport;
the forbidding control modules respectively correspond to a plurality of baseband board cards adopting different communication control standards in the airborne satellite communication system and are used for judging whether radio frequency transmission should be forbidden currently or not based on the real-time position information and the height map database according to the respective corresponding communication control standards;
the radio frequency forbidding output module is connected with each forbidding control module and used for outputting a radio frequency indicating signal for indicating forbidding transmission frequency when each forbidding control module judges that the radio frequency is to be forbidding transmitted; when the forbidding control module judges that the radio frequency is not forbidden, outputting a radio frequency indicating signal for indicating that the radio frequency is not forbidden;
and the radio frequency transmission forbidding processing module is used for controlling the opening or closing of the antenna based on the radio frequency indication signal.
10. The radio frequency banning control system according to claim 9, wherein the data obtaining module is connected to an onboard inertial reference system or a navigation positioning sensor, and is specifically configured to obtain real-time position information of the onboard satellite communication system from the onboard inertial reference system or the navigation positioning sensor.
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