CN114710194B - Aviation ground-air voice communication comparison method and system - Google Patents
Aviation ground-air voice communication comparison method and system Download PDFInfo
- Publication number
- CN114710194B CN114710194B CN202210299915.1A CN202210299915A CN114710194B CN 114710194 B CN114710194 B CN 114710194B CN 202210299915 A CN202210299915 A CN 202210299915A CN 114710194 B CN114710194 B CN 114710194B
- Authority
- CN
- China
- Prior art keywords
- communication
- voice
- link quality
- aircraft
- radio station
- 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
- H04B7/18502—Airborne stations
- H04B7/18506—Communications with or from aircraft, i.e. aeronautical mobile service
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/02—Access restriction performed under specific conditions
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention belongs to the technical field of communication, and particularly relates to an aviation ground-air voice communication comparison and selection system and method. According to the aviation air-ground voice communication comparison and selection method provided by the invention, the communication quality of the aircraft and the radio stations is calculated, the communication requirements of the commander are obtained from the communication voice of the commander, different radio station gating schemes are formulated aiming at different communication requirements of the commander and the communication quality of the aircraft and the radio stations when the communication requirements occur, the communication efficiency of ground-air communication can be improved, the communication quality can be ensured, and meanwhile, the method is well applicable to scenes of multi-aircraft large-space collaborative training.
Description
Technical Field
The invention belongs to the technical field of communication, and particularly relates to an aviation ground-air voice communication comparison and selection system and method.
Background
The existing aviation ground-air voice communication is mainly realized by an ultrashort wave radio station. In order to realize the full coverage of voice communication in the flight area, multiple coverage can be carried out by using a plurality of voice radio signals with the same frequency point. The mode can easily cause co-channel interference while realizing the full coverage of voice communication, produces noise, echo and howling, seriously influences the communication quality and causes potential safety risks.
A voice comparison and selection method based on signal-to-noise ratio comparison and a frequency offset method are adopted in civil aviation communication to solve the same-frequency interference problem. The voice comparison method comprises the following steps: and selecting one path of ground radio station with the highest signal-to-noise ratio for voice output based on the comparison of the signal-to-noise ratio of the voice signal during the downstream transmission of the airplane. In the uplink transmission, all ground stations in the first communication will broadcast voice, and the ground radio selection device selects one radio with the best signal-to-noise ratio after receiving the airborne radio reply and maintains the ground radio selection for the duration of the user communication. And when the transmitter exceeds the set time period, broadcasting is carried out, and the links are selected again. Frequency offset method: the frequency point of the transmitting station is finely adjusted to avoid the generation of howling pulse during the same-frequency mixing demodulation, which is a method for specially restraining the same-frequency and different-address howling. The two methods commonly used in civil aviation cannot well meet the use requirements in a multi-machine large airspace collaborative training scene. The scene of multi-aircraft large airspace collaborative training refers to that a plurality of aircrafts fly back and forth in the coverage area of a plurality of radio stations; directors are sometimes required to send instructions to all aircraft and sometimes to some aircraft.
According to the voice comparison selection method based on signal-to-noise ratio comparison, after a link is established, broadcast voice can be transmitted only through a selected radio station, and if the other cooperative aircraft is not in the coverage area of the selected radio station, voice messages cannot be listened to; the method can not meet the requirement that command sharing situation of directors is required to be simultaneously listened in a multi-aircraft flight cooperative training scene in a large airspace. Meanwhile, the method needs to perform a process of 'broadcasting-echo' to determine the optimal link once on all aircrafts, and the specific aircrafts cannot be compared and selected according to the communication intention of a commander (the aircraft ID of the intention call), so that the communication efficiency is reduced, and the burden of the commander is increased. Meanwhile, the frequency bias method has special requirements on radio frequency selectivity, has relatively large influence on communication quality, and is difficult to adjust the frequency bias range when the number of aircrafts in the same airspace is large.
Disclosure of Invention
The invention aims at: aiming at the problem of poor use effect in a multi-machine large-space cooperative training scene in the existing radio station selection technology of aviation ground-air voice communication, the method and the system for comparing and selecting aviation ground-air voice communication are provided.
To achieve the above object, a first aspect of the present invention provides an air-to-ground voice communication comparison method, the method comprising:
s1, acquiring state information of an airplane and radio station characteristics of each radio station, and respectively calculating the receiving power of the airplane to each radio station based on the state information and the radio station characteristics of each radio station; arranging the received power from large to small to obtain a link quality table of the aircraft; respectively calculating link quality tables of all airplanes in a current airspace to obtain a link quality summary table;
s2, extracting a communication scene and a communication target from a voice message sent by a user based on preset voice characteristics;
s3, based on a communication scene and a communication target, gating one or more radio stations according to the link quality summary table, sending a voice message, and silencing other unguided radio stations;
wherein the speech features include: one or more of pilot code, civil aircraft call sign, or secondary radar code; the station features include: front-end transmit power, transmit feeder loss, frequency point information, and fault code information.
Further, in the step S1, the received power of the aircraft to the radio station is calculated according to the following formula:
P i reception ＝(P Emission of -P d loss (d) )×C Radio station failure coefficient ×C Attitude loss coefficient ；
Wherein P is i reception Theoretical received power for aircraft for ith station, P Emission of Transmitting a power message word for the front end of the radio station; p (P) d loss (d) Is the air propagation loss; c (C) Attitude loss coefficient Is the attitude loss coefficient.
Further, the P d loss (d) The loss calculation formula is:
P d loss (d) ＝32.45+20log 10 F+20log 10 D, a step of performing the process; wherein F is a communication frequency point, and D is a communication distance between the radio station and the airplane.
Further, the communication scenario includes: single machine scene and multiple machine scene;
the step S3 is specifically as follows: executing step S301a when the communication scene is a stand-alone scene;
when the communication scene is a multi-machine scene, step S301b is executed;
s301a, extracting a link quality table of a communication target from the link quality summary table
Gating a first radio station in a link quality table of a communication target, sending a voice message, and simultaneously silencing other radio stations;
s301b, extracting link quality tables of a plurality of communication targets from the link quality summary table
Acquiring intersections of link quality tables of the plurality of communication targets;
executing step S301b1 when the intersection is not empty;
executing step S301b2 when the intersection is an empty set;
s301b1, selecting a radio station with the best communication quality from the intersection, sending a voice message, and meanwhile, silencing other radio stations;
s301b2, according to the link quality tables of all communication targets, gating the radio stations with the most communication targets, and directly sending voice messages; a radio station with multiple passing targets is selected and covered, and voice messages are sent by frequency bias of 5 kHZ; when only one station exists in the link quality tables of all communication targets, all stations are gated to transmit voice messages.
A second aspect of the present invention provides a readable storage medium having stored thereon a computer program for execution by a processor to implement an aeronautical air-to-ground voice communication comparison method as described above.
A third aspect of the present invention provides an air-to-ground voice communication selection system, comprising: at least one processor, and a memory communicatively coupled to the at least one processor; the memory stores instructions communicatively connectable by the at least one processor, the instructions executable by the at least one processor to enable the at least one processor to perform an air-to-ground voice communication comparison method as described above.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
according to the aviation air-ground voice communication comparison and selection method provided by the invention, the communication quality of the aircraft and the radio stations is calculated, the communication requirements of the commander are obtained from the communication voice of the commander, different radio station gating schemes are formulated aiming at different communication requirements of the commander and the communication quality of the aircraft and the radio stations when the communication requirements occur, the communication efficiency of ground-air communication can be improved, the communication quality can be ensured, and meanwhile, the method is well applicable to scenes of multi-aircraft large-space collaborative training.
Drawings
FIG. 1 is a block diagram of a Deep Speech2 Speech recognition model used in an exemplary embodiment of the present invention;
fig. 2 is a schematic diagram of the overall structure of an air-to-ground voice communication comparison and selection system according to an exemplary embodiment of the present invention;
fig. 3 is a schematic diagram of an air-ground communication scenario a in an exemplary embodiment of the present invention;
fig. 4 is a schematic diagram of a ground-air communication scenario b in an exemplary embodiment of the present invention;
fig. 5 is a schematic diagram of a ground-air communication scenario c in an exemplary embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
S1, acquiring state information of an airplane and radio station characteristics of each radio station, and respectively calculating the receiving power of the airplane to each radio station based on the state information and the radio station characteristics of each radio station; arranging the received power from large to small to obtain a link quality table of the aircraft; respectively calculating link quality tables of all airplanes in a current airspace to obtain a link quality summary table;
s2, extracting a communication scene and a communication target from a voice message sent by a user based on preset voice characteristics;
s3, based on a communication scene and a communication target, gating one or more radio stations according to the link quality summary table, sending a voice message, and silencing other unguided radio stations;
wherein the speech features include: one or more of pilot code, civil aircraft call sign, or secondary radar code; the station features include: front-end transmit power, transmit feeder loss, frequency point information, and fault code information. The state information of the aircraft includes: position information, attitude information, heading information, etc. of the aircraft.
Further, in the step S1, the formula is as follows:
P i reception ＝(P Emission of -P d loss (d) )×C Radio station failure coefficient ×C Attitude loss coefficient Calculating the receiving power of the aircraft to the radio station; wherein P is i reception Is an aircraftTheoretical received power for the ith station, P Emission of Transmitting a power message word for the front end of the radio station; p (P) d loss (d) Is the air propagation loss; c (C) Attitude loss coefficient Is the attitude loss coefficient.
Further, the P d loss (d) The loss calculation formula is:
P d loss (d) ＝32.45+20log 10 F+20log 10 D, a step of performing the process; wherein F is a communication frequency point, and D is a communication distance between the radio station and the airplane.
Wherein C is Radio station failure coefficient For the failure coefficient to be the switching value, when the resolving station has failure, C Radio station failure coefficient I.e. set to 0, otherwise 1.
C Attitude loss coefficient The coefficient of loss generated for receiving station signals for attitude reasons for an aircraft is a function of the aircraft antenna mounting location, aircraft attitude, and the relative orientation between the aircraft and the stations. The attitude loss coefficient is a gain coefficient calculated after the relative positions of the aircraft radio antenna and the command seat radio antenna (namely the ground radio) are brought into an antenna pattern, and the attitude loss coefficient is mainly related to the antenna pattern coefficient of the aircraft body in consideration of the fact that the airborne receiving antenna in actual use is mostly an omni-directional antenna. The real-time position included angle between the aircraft antenna and the ground is calculated, the real-time power can be obtained by taking the included angle into the aircraft antenna graph function, the obtained ratio is the attitude loss coefficient compared with the maximum radiation power of the aircraft antenna,
the resolving method specifically comprises the following steps:
C attitude loss coefficient ＝P Actual reception /P Theoretical MAX
P Actual reception ＝F(θ)*Pmax
Wherein F (θ) is a receiver directivity function or a direction chart of the finished antenna of the aircraft, and is described when each finished antenna is delivered by an antenna manufacturer, θ is an included angle between a ground radio station and the aircraft under the coordinates of the aircraft body, and θ is a function related to the real-time longitude and latitude, heading, rolling and pitch angle of the aircraft. Because the ground station is a fixed coordinate under the earth geographic coordinate system E, the ground station is matched with the aircraftThe angle of the line is related to the attitude angle of the aircraft, the heading, the back and the right side of the heading are positive axes, and the aircraft body F is expressed as (x) f ,y f ,z f ). Firstly, coordinate system transformation is needed to be carried out to calculate the included angle, the coordinates of the ground radio station and the coordinates of the aircraft body are transformed to the same coordinate system,
the earth geographic coordinate system E of the center of gravity of the airplane is that of the ground radio station 1 The motion plane coordinate system with the center of gravity of the airplane as the origin is set as F 1 The northeast mode is adopted. Radio station under E-line (x s ,y s ,z s ) While the geographical coordinate system of the instantaneous position of the aircraft is (x) f ,y f ,z f ) Then the ground command position is converted from E system into aircraft gravity center E 1 Is tied to
(x e1 ,y e1 ,z e1 )＝[x s -x f ,y s -y f ,z s -z f ]
E will now be described in terms of the coordinate transformation methods listed in the classical inertial navigation principle 1 Conversion of system coordinates to system F 1 The three-way coordinate cosine transform matrix is as follows:
wherein kz= [ -pi× (a long +π/2)]/180，Ky＝0，
A long For real-time longitude of aircraft, A Lat Is the latitude of the real-time location. Converted F 1 The system coordinates are
(x f1 ,y f1 ,z f1 )＝[x e1 ,y e1 ,z e1 ]·C 1 ·C 2 ·C 3
Further, F 1 The system coordinate is transformed into the aircraft body coordinate F system, and the three-dimensional coordinate direction cosine transformation matrix is that
Wherein kz= (pi×n) A )/180，Ky＝(π×R A )/180，Kx＝(π×P A )/180，N A For the real-time course angle of the airplane, R A For real-time roll angle, P of aircraft A Is the pitch angle of the aircraft. The converted F-system coordinates are
(x f ,y f ,z f )＝[x e1 ,y e1 ,z e1 ]·C 1 ·C 2 ·C 3 Then the positional relationship of the ground radio station relative to the plane under the plane body coordinate system is obtained, and the antenna direction angle theta= [180×tan -1 (x f /y f )]The relation between the antenna direction angle and the transmitting power can be checked by comparing the direction diagram or the direction diagram function of any antenna, and the normalized ratio of the antenna direction angle and the maximum transmitting power is the loss coefficient C Attitude loss coefficient 。
And after the calculation is completed, obtaining the real-time link quality of all the radio stations relative to a certain aircraft and sequencing. According to the principle of mass from large to small, P i reception Ordering and forming an "aircraft-ground station" link quality ranking table that illustrates the quality of each station's communication link for a particular aircraft in the air. Assuming 5 aircraft in the airspace and 3 stations in the airspace, one possible real-time link quality summary D is shown in table 1:
table 1 real-time link quality summary
Wherein, the numerical value of the table content is the real-time comparison result of the link quality, 1 represents the highest link quality, 5 represents the lowest link quality, null represents that no communication is possible outside the theoretical communication coverage range.
As a preferred implementation manner in the exemplary embodiment of the present invention, the S3 includes:
based on preset voice characteristics, a voice recognition model is used for extracting a communication scene and a communication target from the voice message.
In the large airspace and multi-aircraft flight cooperative training scene, the command sent by the commander mostly starts with an aircraft ID call sign and a commander number, and then the detailed command content is sent out, so that the communication scene and the communication target of the commander can be known by identifying the voice characteristic of the command start of the commander when voice recognition is carried out. For example: command issued by commander: the machine number 06, the 01 call, the lifting height to 4000m can be extracted, and the communication is the machine number 06 in the single machine scene. In this embodiment as shown in table 1, part of the exemplary speech features include: pilot code, civil aircraft call sign, or secondary radar code.
TABLE 2 Speech characterization
In step S2, the present patent preferably uses Deep Speech2 Speech recognition model to recognize the aircraft ID in the ground-air call, and its framework structure is shown in fig. 1, where the model structure includes convolutional neural network (Convolutional Neural Network, CNN) model, bi-direction Gated Recurrent Unit, bi-GRU model, fully connected neural layer (FC, fullly Connected Layer) and CTC (Connectionist Temporal Classification) loss function. The input is voice audio characteristics, and the output is text information after recognition.
When the model is used, the ground-to-air voice signal is firstly converted into a linear spectrogram, the linear spectrogram is sent into a voice training model, the space characteristics of the input characteristics are extracted through 3 convolution layers, and then the time sequence characteristics of the audio signal are mined by 3 bidirectional GRUs and 1 full connection layer. Considering the case where the voice input length is not equal to the output text length, the CTC function is applied as a loss function. And (5) completing model training after multiple iterations. In the prediction process, unlike the training process, a softmax function is selected to be directly connected with the Bi-GRU module, corresponding text information is obtained according to a data dictionary after greedy decoding and searching, and an airplane ID recognition task is realized. With the continuous accumulation of voice data, the generalization capability of the model is further improved. Specific speech recognition models and their implementation are known from the literature D.Amodei, R.Anubhai, E.Battenberg, C.Case, J.Casper, B.Catanzaro, J.Chen, M.Chrzanowski, A.Coates, G.Diamos, E.Elsen, J.H.Engel, L.Fan, C.Fougner, T.Han, A.Y.Hannun, B.Jun, P.LeGresley, L.Lin, S.Narang, A.Y.Ng, S.Ozair, R.Prenger, J.Raiman, S.Satheesh, D.Seetapun, S.Sengupta, Y.Wang, Z.Wang, C.Wang, B.Xiao, D.Yogatama, J.Zhan, and Z.Zhu, "Deep speech 2: end-to-end speech recognition in english and mandarin," CoRR, vol. Abs/1512.02595,2015 [ Online ]. Available: http:// arxiv. Org/abs/1512.02595. And are not described in detail herein for the prior art.
Further, the communication scenario includes: single machine scene and multiple machine scene;
the step S3 is specifically as follows: executing step S301a when the communication scene is a stand-alone scene;
when the communication scene is a multi-machine scene, step S301b is executed;
s301a, extracting a link quality table of a communication target from the link quality summary table
Gating a first radio station in a link quality table of a communication target, sending a voice message by using a preset frequency, and meanwhile, silencing other radio stations;
s301b, extracting link quality tables of a plurality of communication targets from the link quality summary table
Acquiring intersections of link quality tables of the plurality of communication targets;
executing step S301b1 when the intersection is not empty;
executing step S301b2 when the intersection is an empty set;
s301b1, selecting a radio station with the best communication quality from the intersection, sending a voice message, and meanwhile, silencing other radio stations;
s301b2, according to the link quality tables of all communication targets, gating the radio stations with the most communication targets, and directly sending voice messages; a radio station with multiple passing targets is selected and covered, and voice messages are sent by frequency bias of 5 kHZ; when only one station exists in the link quality tables of all communication targets, all stations are gated to transmit voice messages.
Specifically, in practical use, under a single-machine scene, the invention establishes a single ID 'plane-radio station' link quality ranking table for each plane in the air space, and sorts the radio stations 1 by the gating ranking table to transmit voice signals, and meanwhile, silence other radio stations to prevent interference.
Specifically, in actual use, under a multi-station scenario, when a commander presses a headset and reports a plurality of airplane ID numbers, the invention calls an airplane-station link quality table of the selected ID airplane, and performs station comparison selection according to the following logic
(i) Selecting all communicable radio stations in each link list, and setting the kth single machine in m planes which are cooperated simultaneously to form a selectable radio station set D k ＝{Radio 1 ,Radio 2 ....Radio n-2 ,Radio n-1 ,Radio n And quality ordering.
(ii) All D at transmission k And if the number of the elements is 1, gating the transmission of the single radio station in each set.
(iii) If intersection e=d 1 ∩D 2 …∩D k If the number of the radio stations is single radio station number, single radio station transmission is selected, and multi-aircraft coverage of the single radio station is realized
(iv) If intersection e=d 1 ∩D 2 …∩D k The = {0}, i.e. there is no intersection, and the requirement in (ii) is not satisfied, i.e. when two or more link ordering sets D can contain the same two or more selectable power-on stations, gating should be performed according to the full coverage principle first and then according to the quality priority principle, while the frequency of the most aircraft radio stations is covered and kept unchanged, the frequency offset of the most radio stations is 5kHz, and other radio stations are silenced to prevent interference.
Example 2
The embodiment mainly provides an air-ground voice communication comparison and selection system, the whole structure of which is shown in fig. 2, comprising: the device comprises a power supply module, a time service module, a position information module, a processor and a configuration module; the processor is used for executing the aeronautical ground-air voice communication comparison method.
The power module is respectively connected with the time service module, the position information module, the processor and the configuration module; the power module is used for providing electric energy for other modules in the system; and the externally input AC220/50hz external power supply can be converted into electric energy required by the normal operation of the other modules. Meanwhile, the power supply module can also have certain energy storage capacity, and when external power supply disappears, the normal operation of other modules in the system can be ensured.
The time service module is respectively connected with the position information module and the processor; the time service information can be received through the GNSS time service system and used for providing consistent time service information for other modules in the system.
The position information module is connected with the processor and is used for acquiring the state information of the aircraft; for receiving location information of the aircraft from the air traffic control system or other system output, which may include aircraft ID information (including but not limited to call letters, S-mode address numbers, secondary radar transponder numbers), aircraft longitude and latitude information, aircraft altitude information. According to the available data, the system can also comprise aircraft attitude information, heading information and the like, and the position information module can send a data frame with the information to the processor in the form of a data frame after simply mediating the information; an exemplary data frame structure is such as
Table 3 shows
Table 3 data frame output by position information module
The configuration module is connected with the processor and used for storing the radio station characteristics and the voice characteristics; and periodically transmits the above information to the processor in the form of data frames. Preferably, the configuration module may further have a UI interface for conveniently configuring radio features and voice features. The station features include: front-end transmit power, transmit feeder loss, frequency point information, and fault code information. An exemplary data frame structure is shown in table 4.
Table 4 data frame output by configuration module
Further, the system further comprises: the voice information receiving/transmitting module is respectively connected with the processor and used for carrying out format conversion on voice information, and can convert a digital voice signal format into an analog voice signal format or into other special voice signal formats in an internal voice system.
It can be appreciated that the processor may calculate the communication quality between the aircraft and the radio station based on the location information and the radio station characteristics, and obtain a real-time link quality table of each aircraft to the radio station; when sending the voice message, the processor determines a communication scene and a communication target from the voice message of the user based on the voice characteristics; selecting one or more radio stations which accord with a communication scene and a communication target from the real-time link quality table; and gating the one or more radio stations, and silencing the rest radio stations, and simultaneously sending voice messages through the plurality of radio stations.
Further, the ratio processor calculates the received power of the aircraft to the radio station based on the aircraft radio station transmitting power, the aircraft antenna pattern, the aircraft heading and attitude, and the station position information in the radio station characteristics; and arranging the receiving power of the aircraft to the radio stations from large to small to obtain a real-time link quality table of the aircraft to the radio stations.
Example 3
On the basis of the embodiment 1 and the embodiment 2, the present embodiment describes the present invention with respect to possible practical use cases.
A certain formation has 5 planes, and cooperative training is carried out on a airspace, and in the cooperative training process; the commander needs to send instructions (multi-machine scene) to all 5 planes at certain moment, wherein the ground-air communication scenes at different moments are shown in fig. 3, 4 and 5:
as shown in the communication moment of fig. 3, the circle in the figure represents the maximum radius that the radio station can cover through analysis of the link quality calculation, and the aircraft in the circle can establish communication connection with the radio station with the circle center. The calculated link quality of aircraft 1 is shown as D 1 = { Radio1}, the link quality table of aircraft 2 is D 2 = { Radio2}, the link quality table of aircraft 3 is D 3 = { Radio3}, the link quality table of aircraft 4 is D 4 = { Radio1}, the link quality table of aircraft 5 is D 5 = { Radio5}. After calculating that the link quality table intersection of all the aircraft is empty, executing S401b2 will gate all the stations for communication. All aircraft may receive command from the commander.
The ground-air communication scene b at a certain moment is shown in fig. 4, and the link quality table of the aircraft 1 is D 1 = { Radio2, radio3}, the link quality table of aircraft 2 is D 2 = { Radio3}, the link quality table of aircraft 3 is D 3 = { Radio3, radio2}, the link quality table of the aircraft 4 is D 4 = { Radio3}, the link quality table of aircraft 5 is D 5 = { Radio3}. Calculated intersection e=d 1 ∩D 2 …∩D 5 = { Radio3}. Step S401b1 is performed; at this time, only Radio3 is selected, only a single Radio station is selected, and the same frequency interference problem is avoided.
The ground-air communication scene c at a certain moment is shown in fig. 5, and the link quality table of the aircraft 1 is D 1 = { Radio2, radio1}, the link quality table of aircraft 2 is d2= { Radio2, radio1}, and the link quality table of aircraft 3 is D 3 = { Radio3, radio2}, the link quality table of the aircraft 4 is D 4 = { Radio2, radio3}, the link quality table of aircraft 5 is D 5 ＝{Radio3}。
Since the link quality table intersection of all communication targets is empty S401b2 in step 4 is performed at this time, D 5 The link quality ordering table contains only Radio3, so Radio3 must be gated first, and Radio2 and Radio1 gate one of them, which can satisfy the full coverage principle. Therefore, the gating Radio2 and the Radio1 can adopt a quality priority principle to gate the Radio2, and finally obtain a real-time gating set E= { Radio2, radio3}, at this time, because the Radio3 covers most aircraft, the Radio3 keeps the frequency unchanged, and the Radio2 is communicated after the frequency deviation is 5 kHz.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (7)
1. An air-to-ground voice communication comparison method, which is characterized by comprising the following steps:
s1, acquiring state information of an airplane and radio station characteristics of each radio station, and respectively calculating the receiving power of the airplane to each radio station based on the state information and the radio station characteristics; arranging the received power from large to small to obtain a link quality table of the aircraft; respectively calculating link quality tables of all airplanes in a current airspace to obtain a link quality summary table;
s2, extracting a communication scene and a communication target from a voice message sent by a user based on preset voice characteristics;
s3, based on a communication scene and a communication target, gating one or more radio stations according to the link quality summary table, sending a voice message, and silencing other unguided radio stations;
the communication scenario includes: single machine scene and multiple machine scene;
the step S3 is specifically as follows: executing step S301a when the communication scene is a stand-alone scene;
when the communication scene is a multi-machine scene, step S301b is executed;
s301a, extracting a link quality table of a communication target from the link quality summary table;
gating a first radio station in a link quality table of a communication target, sending a voice message, and simultaneously silencing other radio stations;
s301b, extracting link quality tables of a plurality of communication targets from the link quality summary table;
acquiring intersections of link quality tables of the plurality of communication targets;
executing step S301b1 when the intersection is not empty;
executing step S301b2 when the intersection is an empty set;
s301b1, selecting a radio station with the best communication quality from the intersection, sending a voice message, and meanwhile, silencing other radio stations;
s301b2, according to the link quality tables of all communication targets, gating the radio stations with the largest coverage communication targets, and sending voice messages; a radio station with multiple passing targets is selected and covered, and voice messages are sent by frequency bias of 5 kHZ; when only one radio station exists in the link quality tables of all communication targets, all radio stations are gated to send voice messages;
wherein the speech features include: one or more of pilot code, civil aircraft call sign, or secondary radar code; the station features include: front-end transmit power, transmit feeder loss, frequency point information, and fault code information.
2. The method for comparing and selecting air-ground voice communication according to claim 1, wherein in S1, the received power of the aircraft to the radio station is calculated by the following formula:
P i reception ＝(P Emission of -P d loss (d) )×C Radio station failure coefficient ×C Attitude loss coefficient ；
Wherein P is i reception Theoretical received power for aircraft for ith station, P Emission of Transmitting power for the front end of the radio station; p (P) d loss (d) Is the air propagation loss; c (C) Attitude loss coefficient Is the attitude loss coefficient.
3. An air-to-ground voice communication comparison method as claimed in claim 2, wherein said P d loss (d) The calculation formula of (2) is as follows:
P d loss (d) ＝32.45+20log 10 F+20log 10 D, a step of performing the process; wherein F is a communication frequency point, and D is a communication distance between the radio station and the airplane.
4. An air-to-ground voice communication comparison method according to any one of claims 1-3, wherein S2 comprises:
based on preset voice characteristics, a voice recognition model is used for extracting a communication scene and a communication target from the voice message.
5. An air-to-ground voice communication comparison method as claimed in claim 4 wherein the voice recognition model is deep 2 voice recognition model.
6. A readable storage medium having stored thereon a computer program, the program being executable by a processor to implement an aeronautical air-to-ground voice communication comparison method as claimed in any one of claims 1 to 5.
7. An air-to-ground voice communication comparison system, comprising: at least one processor, and a memory communicatively coupled to the at least one processor; the memory stores instructions communicatively connectable by the at least one processor for execution by the at least one processor to enable the at least one processor to perform an air-to-ground voice communication comparison method of any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210299915.1A CN114710194B (en) | 2022-03-25 | 2022-03-25 | Aviation ground-air voice communication comparison method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210299915.1A CN114710194B (en) | 2022-03-25 | 2022-03-25 | Aviation ground-air voice communication comparison method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114710194A CN114710194A (en) | 2022-07-05 |
| CN114710194B true CN114710194B (en) | 2023-05-09 |
Family
ID=82170759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210299915.1A Active CN114710194B (en) | 2022-03-25 | 2022-03-25 | Aviation ground-air voice communication comparison method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114710194B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106464406A (en) * | 2014-05-09 | 2017-02-22 | 三星电子株式会社 | Interference measurement method and apparatus for use in mobile communication system |
| CN111212384A (en) * | 2019-12-05 | 2020-05-29 | 北京航空航天大学杭州创新研究院 | Unmanned aerial vehicle multi-data-chain intelligent switching method |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6850497B1 (en) * | 1995-09-19 | 2005-02-01 | Mobile Satellite Ventures, Lp | Satellite trunked radio service system |
| CN103873133B (en) * | 2014-03-13 | 2016-11-02 | 中国民用航空总局第二研究所 | A kind of communication and navigation monitoring system based on multimode data link |
| US20170302368A1 (en) * | 2016-04-13 | 2017-10-19 | Google Inc. | Predicting Signal Quality in a Rotating Beam Platform |
| US10109203B2 (en) * | 2016-09-07 | 2018-10-23 | Honeywell International Inc. | Methods and systems for presenting en route diversion destinations |
| CN106788677B (en) * | 2016-12-09 | 2022-05-06 | 佛山科学技术学院 | Unmanned aerial vehicle data relay device based on mobile data network and method thereof |
| US10347136B2 (en) * | 2016-12-23 | 2019-07-09 | Wing Aviation Llc | Air traffic communication |
| CN110301143B (en) * | 2016-12-30 | 2022-04-22 | 英特尔公司 | Method and apparatus for radio communication |
| KR20230113412A (en) * | 2018-09-06 | 2023-07-28 | 링크 글로벌, 인크. | Cellular core network and radio access network infrastructure and management in space |
| WO2020132145A1 (en) * | 2018-12-18 | 2020-06-25 | Aero5G, Inc. | In-flight communication & method for improved quality of service for 5g network |
| CN110416701A (en) * | 2019-08-05 | 2019-11-05 | 西安多小波信息技术有限责任公司 | A kind of air communications antenna system and communication means based on flight attitude perception |
| CN110768711B (en) * | 2019-10-30 | 2021-12-24 | 重庆市亿飞智联科技有限公司 | Unmanned aerial vehicle communication method, dispatching station, base station and system |
| CN111970293B (en) * | 2020-08-24 | 2023-04-07 | 成都天奥信息科技有限公司 | Synchronous comparing, selecting and following technical method based on VoIP ground-air voice communication |
| CN112822732A (en) * | 2020-12-31 | 2021-05-18 | 上海擎昆信息科技有限公司 | Method, system, user equipment and storage medium for realizing cell reselection |
| CN112885153A (en) * | 2021-01-22 | 2021-06-01 | 北京北航天宇长鹰无人机科技有限公司 | General aviation safety monitoring system based on multi-network integration |
| CN114155861A (en) * | 2021-11-23 | 2022-03-08 | 首都机场集团有限公司 | Empty pipe voice intelligent monitoring system |
-
2022
- 2022-03-25 CN CN202210299915.1A patent/CN114710194B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106464406A (en) * | 2014-05-09 | 2017-02-22 | 三星电子株式会社 | Interference measurement method and apparatus for use in mobile communication system |
| CN111212384A (en) * | 2019-12-05 | 2020-05-29 | 北京航空航天大学杭州创新研究院 | Unmanned aerial vehicle multi-data-chain intelligent switching method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114710194A (en) | 2022-07-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11943041B2 (en) | Dynamic shielding system of cellular signals for an antenna of an unmanned aerial vehicle | |
| US7961136B2 (en) | Automatic dependent surveillance-broadcast (ADS-B) network infrastructure, ground station and situation display software deployment and evaluation activity | |
| JP3309230B2 (en) | Remote position determination method and communication integrated system for determining position of moving object | |
| US20230072064A1 (en) | Scheduling beams of a satellite antenna | |
| EP3687073A1 (en) | System and method for enhancing airspace coverage capability of mobile communication base station | |
| EP3258619B1 (en) | Airbourne cellular communication system | |
| JP2009540685A (en) | Wireless control of drone and access to related reconnaissance data | |
| CA2555164A1 (en) | Automatic method for transmitting monitoring alarms from an aircraft to the ground | |
| WO2023134018A1 (en) | Aircraft and emergency navigation communication system based on beidou short message | |
| CN107943091B (en) | Unmanned aerial vehicle avoidance method, control end, communication end, execution end and system | |
| CN113556162B (en) | Beam forming method, network equipment, terminal and storage medium | |
| US20230217345A1 (en) | Space-based aircraft monitoring | |
| US20200044730A1 (en) | System for collecting flight information, wireless communication device, relay, and method of collecting flight information | |
| CN114710194B (en) | Aviation ground-air voice communication comparison method and system | |
| CN109787677A (en) | A kind of handheld terminal based on low orbit satellite optical communication system | |
| JP2021044774A (en) | Radio relay system | |
| CN116261146A (en) | Global electromagnetic cooperative sensing constellation system | |
| CN114337775A (en) | Air-ground communication network architecture, ground base station and base station array antenna switching method | |
| CN112054812A (en) | Low-carrier-borne identification response and ADS-B integrated transceiving system | |
| Ilčev et al. | Airborne satellite CNS systems and networks | |
| CN109245818A (en) | Helicopter communication platform system is commanded in early warning | |
| CN114449508B (en) | Communication method, device and equipment of low airspace flight equipment | |
| WO2024108756A1 (en) | Satellite-based ads-b multi-beam forming optimization method based on coverage matrix | |
| JP2000078069A (en) | Radio system | |
| WO2023236545A1 (en) | Interference suppression method and apparatus, storage medium, and electronic apparatus |
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 |