CN116155358B - Data processing method and device for satellite communication user detection - Google Patents
Data processing method and device for satellite communication user detection Download PDFInfo
- Publication number
- CN116155358B CN116155358B CN202310140386.5A CN202310140386A CN116155358B CN 116155358 B CN116155358 B CN 116155358B CN 202310140386 A CN202310140386 A CN 202310140386A CN 116155358 B CN116155358 B CN 116155358B
- Authority
- CN
- China
- Prior art keywords
- information
- signal
- communication
- user
- satellite communication
- 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
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
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/06—Airborne or Satellite Networks
-
- 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
Abstract
The invention discloses a data processing method and a device for satellite communication user detection, wherein the method comprises the following steps: receiving satellite communication data information; dividing satellite communication data information to obtain communication signal information; the communication signal information comprises a plurality of communication signals; the signal length of each communication signal is uniform; determining a communication user information set based on the communication signal information and the local unique word set; the communication user information set comprises a plurality of communication user information; the local unique word set comprises a plurality of local unique word sequences; each local unique word corresponds to a unique one of the satellite communication subscribers. Therefore, the invention is beneficial to solving the problem of collision among users generated by multiple access and improving the correct detection probability of multiple users.
Description
Technical Field
The present invention relates to the field of data processing technologies, and in particular, to a data processing method and apparatus for satellite communication user detection.
Background
Because the satellite Internet of things has the characteristics of mass terminals, short service bursts and the like, in uplink communication, the satellite can process the received signals only by detecting the number of users and the positions of the users in transmission time slots, but the conventional user detection technology does not consider multiple access interference. Under the near-far effect, the stronger signal power can generate great interference to the access signal of the weaker signal, namely the MAI is serious, thereby causing the multi-user detection and parameter estimation performance to be greatly reduced. Therefore, a data processing method and device for satellite communication user detection are provided, so that the problem of collision among users generated by multiple access is solved, and the correct detection probability of multiple users is improved.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a data processing method and a data processing device for satellite communication user detection, which can obtain user information in satellite communication through comprehensive processing such as dividing, calculating and updating the satellite communication data information, thereby being beneficial to solving the problem of collision among users generated by multiple access and improving the correct detection probability of multiple users.
In order to solve the above technical problems, a first aspect of the embodiments of the present invention discloses a data processing method for satellite communication user detection, where the method includes:
receiving satellite communication data information;
dividing the satellite communication data information to obtain communication signal information; the communication signal information comprises a plurality of communication signals; the signal length of each communication signal is consistent;
determining a communication user information set based on the communication signal information and the local unique word set; the communication user information set comprises a plurality of communication user information; the local unique word set comprises a plurality of local unique word sequences; each of the local unique words corresponds to a unique one of the satellite communication subscribers.
In an optional implementation manner, in the first aspect of the embodiment of the present invention, the determining the communication user information set based on the communication signal information and the local unique word set includes
Determining a peak position information set based on the communication signal information, the local unique word set and the autocorrelation model; the peak position information set comprises a plurality of peak position information; the peak position information includes a signal peak value and a signal position; the signal position represents the position of a signal peak value in a communication signal;
determining a communication user information set based on the peak position information set and the threshold set; the set of thresholds includes at least 2 threshold values.
In a first aspect of the embodiment of the present invention, the determining the communication user information set based on the peak position information set and the threshold set includes:
calculating power value information of the peak position information for any peak position information; the power value information comprises a maximum power ratio and an average power ratio;
performing size judgment and analysis on all power value information and the threshold set to obtain user identification result information; the user identification result information comprises a plurality of user identification results; each user identification result represents whether the satellite communication user exists in the signal position corresponding to the peak position information;
Judging whether the user identification result information is null or not to obtain a user judgment result; the null value characterizes that the satellite communication user does not exist in the user identification result information;
when the user judgment result is negative, determining at least one piece of standby communication user information based on the user identification result;
updating the communication signal information by using the standby communication user information, and triggering and executing the method based on the communication signal information, the local unique word set and the autocorrelation model to determine a peak position information set;
and when the user judging result is yes, determining a communication user information set according to the standby communication user information.
As an optional implementation manner, in the first aspect of the embodiment of the present invention, the calculating power value information of the peak position information includes:
intercepting signals at the left and right sides of a signal position corresponding to the peak value position information to obtain interval signal information; the interval signal information comprises a plurality of first interval signals and a plurality of second interval signals; the first interval signal represents a signal at the left side of a signal position corresponding to the peak position information; the second interval signal represents a signal on the right of the signal position corresponding to the peak position information;
Performing autocorrelation power calculation on the interval signal information by using the autocorrelation model to obtain signal power value information corresponding to the peak value position information; the signal power value information comprises a plurality of signal power values;
screening the maximum value from the signal power value information to be used as a target signal power value;
carrying out average value calculation on the signal power value information to obtain an average power value;
calculating the ratio of the signal peak value corresponding to the peak value position information to the target signal power value to obtain the maximum power ratio corresponding to the peak value position information;
and calculating the ratio of the signal peak value corresponding to the peak value position information to the average power value to obtain the average power ratio corresponding to the peak value position information.
As an optional implementation manner, in the first aspect of the embodiment of the present invention, the threshold value includes a first threshold value and a second threshold value;
and performing size judgment analysis on all the power value information and the threshold set to obtain user identification result information, wherein the method comprises the following steps of:
for any power value information, judging whether the maximum power ratio corresponding to the power value information is larger than or equal to the first threshold value, and obtaining a first threshold judgment result;
When the first threshold judgment result is yes, judging whether the average power ratio corresponding to the power value information is larger than the second threshold value, and obtaining a second threshold judgment result;
and when the second threshold judgment result is yes, determining that the user identification result corresponding to the power value information is that the satellite communication user exists.
In an optional implementation manner, in the first aspect of the embodiment of the present invention, the updating the communication signal information by using the backup communication user information includes
Demodulating a signal from a communication signal corresponding to the standby communication user information based on the signal position corresponding to the standby communication user information to obtain an original signal;
carrying out signal reconstruction on the original signal to obtain a reconstructed signal;
performing channel estimation on the original signal to obtain channel estimation information;
performing deletion update on the communication signal information by utilizing the reconstruction signal and the channel estimation information; the updated communication signal information does not contain the communication signal corresponding to the standby communication user information.
In a first aspect of the embodiment of the present invention, the dividing the satellite communication data information to obtain communication signal information includes:
Acquiring the length of an intercepted signal; the intercepted signal length represents the signal length of the communication signal;
and carrying out signal interception on the satellite communication data information based on the length of the intercepted signal to obtain communication signal information.
The second aspect of the embodiment of the invention discloses a data processing device for satellite communication user detection, which comprises:
the receiving module is used for receiving satellite communication data information;
the segmentation module is used for segmenting the satellite communication data information to obtain communication signal information; the communication signal information comprises a plurality of communication signals; the signal length of each communication signal is consistent;
the determining module is used for determining a communication user information set based on the communication signal information and the local unique word set; the communication user information set comprises a plurality of communication user information; the local unique word set comprises a plurality of local unique word sequences; each of the local unique words corresponds to a unique one of the satellite communication subscribers.
In a third aspect, the present invention discloses another data processing apparatus for satellite communication user detection, the apparatus comprising:
a memory storing executable program code;
A processor coupled to the memory;
the processor invokes the executable program code stored in the memory to perform some or all of the steps in the data processing method for satellite communication user detection disclosed in the first aspect of the embodiment of the present invention.
In a fourth aspect, the present invention discloses a computer storage medium, where computer instructions are stored, where the computer instructions are used to execute part or all of the steps in the data processing method for satellite communication user detection disclosed in the first aspect of the present invention when the computer instructions are called.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
in the embodiment of the invention, satellite communication data information is received; dividing satellite communication data information to obtain communication signal information; the communication signal information comprises a plurality of communication signals; the signal length of each communication signal is uniform; determining a communication user information set based on the communication signal information and the local unique word set; the communication user information set comprises a plurality of communication user information; the local unique word set comprises a plurality of local unique word sequences; each local unique word corresponds to a unique one of the satellite communication subscribers. Therefore, the invention is beneficial to solving the problem of collision among users generated by multiple access and improving the correct detection probability of multiple users.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a data processing method for satellite communication user detection according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a data processing device for satellite communication user detection according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of another data processing apparatus for satellite communication user detection according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a satellite communication system according to an embodiment of the present invention.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the following description will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terms first, second and the like in the description and in the claims and in the above-described figures are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, apparatus, article, or device that comprises a list of steps or elements is not limited to the list of steps or elements but may, in the alternative, include other steps or elements not expressly listed or inherent to such process, method, article, or device.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the invention. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
The invention discloses a data processing method and a data processing device for satellite communication user detection, which can obtain user information in satellite communication through comprehensive processing such as dividing, calculating and updating the satellite communication data information, and the like, and are beneficial to solving the problem of collision among users generated by multiple access and improving the correct detection probability of multiple users. The following will describe in detail.
Example 1
Referring to fig. 1, fig. 1 is a flow chart of a data processing method for satellite communication user detection according to an embodiment of the invention. The data processing method for satellite communication user detection described in fig. 1 is applied to a satellite communication system, such as a local server or cloud server for data processing management of satellite communication user detection, and the embodiment of the invention is not limited. As shown in fig. 1, the data processing method for satellite communication user detection may include the following operations:
101. and receiving satellite communication data information.
102. And dividing the satellite communication data information to obtain communication signal information.
In the embodiment of the present invention, the communication signal information includes a plurality of communication signals.
In the embodiment of the present invention, the signal length of each communication signal is uniform.
103. And determining the communication user information set based on the communication signal information and the local unique word set.
In the embodiment of the present invention, the communication user information set includes a plurality of communication user information.
In the embodiment of the present invention, the local unique word set includes a plurality of local unique word sequences.
In the embodiment of the present invention, each local unique word corresponds to a unique satellite communication user.
As shown in fig. 4, several ground terminals are randomly distributed within the coverage area of the GEO satellite. Each end user randomly generates a data packet for uplink to the satellite. Because the service of the ground terminal has the characteristics of small data volume and high burstiness, the access modes among different terminals adopt random multiple access, and the problem of collision among users is inevitably introduced. At the satellite end, the satellite needs to detect the number of users and the positions of the users in the transmission time slot before processing the received signals, but the traditional user detection technology has poor performance in a multi-user scene. The data processing method for satellite communication user detection, which is described by the embodiment of the invention, can solve the problem of multi-user detection when collision exists between users in an uplink transmission scene of a satellite Internet of things, thereby improving the correct detection probability of multi-user detection.
Specifically, the specific form of the communication signal is as follows:
R＝h 0 x 0 +h 1 x 1 +...+h q x q +...+h Q-1 x Q-1 +n；
wherein h is q Representing the channel gain of user q, x q The transmitted signal representing the user Q, Q representing the total number of users, and n representing additive white gaussian noise.
Therefore, the data processing method for satellite communication user detection described by the embodiment of the invention can obtain the user information in satellite communication through comprehensive processing such as dividing, calculating and updating the satellite communication data information, is beneficial to solving the problem of collision among users generated by multiple access and improves the correct detection probability of multiple users.
In an alternative embodiment, the determining the communication user information set based on the communication signal information and the local unique word set includes
Determining a peak position information set based on the communication signal information, the local unique word set and the autocorrelation model; the peak position information set comprises a plurality of peak position information; peak location information includes signal peaks and signal locations; the signal position represents the position of a signal peak value in the communication signal;
determining a communication user information set based on the peak position information set and the threshold set; the set of thresholds includes at least 2 threshold values.
In this optional embodiment, as an optional implementation manner, the specific manner of determining the peak position information set based on the communication signal information, the local unique word set and the autocorrelation model is:
For any communication signal, intercept from the communication signalSignal sequence r t i (n)；
Truncated signal sequence r using autocorrelation model pair t i (n) calculating the local unique word set to obtain signal autocorrelation power value information corresponding to the communication signal; the signal autocorrelation power value information comprises a plurality of signal autocorrelation power values;
screening the maximum value from the signal autocorrelation power value information to serve as a signal peak value corresponding to the peak value position information;
based on the intercepted signal sequence, the position corresponding to the signal peak value is intercepted from the communication signal as the signal position corresponding to the peak value position information.
Specifically, the specific form of the autocorrelation model is as follows:
wherein y is i (t) represents the signal autocorrelation power value, N represents the length of the unique word sequence, M represents the length of the communication signal, t represents the window sliding distance, s (j) is the local unique word sequence, s * (j) Representing the conjugate sequence of the local unique word sequence, i representing the number of iterations.
In this alternative embodiment, as another alternative embodiment, the threshold value is obtained based on the following steps:
simulating based on the signal intensity, noise size and unique word sequence length of the system to obtain a threshold adjustment coefficient;
And adjusting the threshold reference value set by using the threshold adjustment coefficient to obtain a threshold set.
Optionally, the threshold reference value set includes a plurality of threshold reference values. Specifically, the threshold reference value is 0.5 or 5, which is not limited in the embodiment of the present invention.
Therefore, the data processing method for satellite communication user detection described by the embodiment of the invention can determine the communication user information set based on the communication signal information and the local unique word set, is beneficial to solving the problem of collision among users generated by multiple access and improves the correct detection probability of multiple users.
In another alternative embodiment, determining the set of communication user information based on the set of peak location information and the set of thresholds includes:
for any peak position information, calculating power value information of the peak position information; the power value information comprises a maximum power ratio and an average power ratio;
performing size judgment and analysis on all power value information and threshold sets to obtain user identification result information; the user identification result information comprises a plurality of user identification results; each user identification result represents whether a satellite communication user exists in a signal position corresponding to the peak position information;
Judging whether the user identification result information is null or not to obtain a user judgment result; the null value represents that satellite communication users do not exist in the user identification result information;
when the user judging result is negative, determining at least one piece of standby communication user information based on the user identifying result;
updating the communication signal information by using the standby communication user information, triggering and executing the communication signal information, the local unique word set and the autocorrelation model to determine a peak position information set;
and when the user judging result is yes, determining a communication user information set according to the standby communication user information.
Specifically, based on the user identification result, it is determined that at least one piece of backup communication user information is a signal position corresponding to the satellite communication user in the user identification result, which is used as a starting position of the satellite communication user, so as to demodulate a signal from a communication signal corresponding to the backup communication user information to obtain an original signal.
Therefore, the data processing method for satellite communication user detection described by the embodiment of the invention can determine the communication user information set based on the peak position information set and the threshold set, is favorable for solving the problem of collision among users generated by multiple access and improves the correct detection probability of multiple users.
In yet another alternative embodiment, calculating power value information for the peak location information includes:
intercepting signals at the left and right sides of a signal position corresponding to the peak value position information to obtain interval signal information; the interval signal information comprises a plurality of first interval signals and a plurality of second interval signals; the first interval signal represents a signal at the left side of a signal position corresponding to the peak position information; the second interval signal represents a signal on the right of the signal position corresponding to the peak position information;
performing autocorrelation power calculation on the interval signal information by using an autocorrelation model to obtain signal power value information corresponding to the peak value position information; the signal power value information comprises a plurality of signal power values;
screening the maximum value from the signal power value information to serve as a target signal power value;
carrying out average value calculation on the signal power value information to obtain an average power value;
calculating the ratio of the signal peak value corresponding to the peak value position information to the target signal power value to obtain the maximum power ratio corresponding to the peak value position information;
and calculating the ratio of the signal peak value corresponding to the peak value position information to the average power value to obtain the average power ratio corresponding to the peak value position information.
Therefore, the data processing method for satellite communication user detection described by the embodiment of the invention can obtain the power value information of the peak position information through calculation, is more beneficial to solving the problem of collision among users generated by multiple access, and improves the correct detection probability of multiple users.
In yet another alternative embodiment, the threshold values include a first threshold value and a second threshold value;
performing size judgment and analysis on all power value information and threshold sets to obtain user identification result information, wherein the method comprises the following steps:
for any power value information, judging whether the maximum power ratio corresponding to the power value information is larger than or equal to a first threshold value, and obtaining a first threshold judgment result;
when the first threshold judging result is yes, judging whether the average power ratio corresponding to the power value information is larger than a second threshold value, and obtaining a second threshold judging result;
and when the second threshold judgment result is yes, determining that the user identification result corresponding to the power value information is that the satellite communication user exists.
Therefore, the data processing method for satellite communication user detection described by the embodiment of the invention can carry out size judgment and analysis on all power value information and threshold sets to obtain user identification result information, is more beneficial to solving the problem of collision among users generated by multiple access and improves the correct detection probability of multiple users.
In an alternative embodiment, the updating the communication signal information using the backup communication subscriber information includes
Demodulating the signal from the communication signal corresponding to the standby communication user information based on the signal position corresponding to the standby communication user information to obtain an original signal;
carrying out signal reconstruction on the original signal to obtain a reconstructed signal;
performing channel estimation on the original signal to obtain channel estimation information;
performing deletion update on communication signal information by using the reconstruction signal and the channel estimation information; the updated communication signal information does not contain the communication signal corresponding to the standby communication subscriber information.
In this optional embodiment, as an optional implementation manner, the specific manner of performing the pruned update on the communication signal information by using the reconstructed signal and the channel estimation information is:
multiplying the reconstructed signal and the channel estimation information to obtain a signal to be eliminated;
and eliminating signals matched with the signals to be eliminated in the communication signal information so as to update the communication signal information.
Optionally, the channel estimation is performed based on the target signal power value and the length of the unique word sequence.
Optionally, the above signal reconstruction of the original signal is to modulate and encode the original signal.
Therefore, the data processing method for satellite communication user detection described by the embodiment of the invention can update the communication signal information by using the standby communication user information, is more beneficial to solving the problem of collision among users generated by multiple access, and improves the correct detection probability of multiple users.
In another alternative embodiment, the method for dividing the satellite communication data information to obtain communication signal information includes:
acquiring the length of an intercepted signal; intercepting the signal length of the signal length representation communication signal;
and carrying out signal interception on the satellite communication data information based on the length of the intercepted signal to obtain communication signal information.
Optionally, the length of the intercepted signal is ALOHA frame.
Therefore, the data processing method for satellite communication user detection described by the embodiment of the invention can divide the satellite communication data information to obtain the communication signal information, is more beneficial to solving the problem of collision among users generated by multiple access and improves the correct detection probability of multiple users.
Example two
Referring to fig. 2, fig. 2 is a schematic structural diagram of a data processing device for satellite communication user detection according to an embodiment of the present invention. The device described in fig. 2 can be applied to a satellite communication system, such as a local server or a cloud server for data processing management of satellite communication user detection, and the embodiment of the invention is not limited. As shown in fig. 2, the apparatus may include:
A receiving module 201, configured to receive satellite communication data information;
the dividing module 202 is configured to divide the satellite communication data information to obtain communication signal information; the communication signal information comprises a plurality of communication signals; the signal length of each communication signal is uniform;
a determining module 203, configured to determine a communication user information set based on the communication signal information and the local unique word set; the communication user information set comprises a plurality of communication user information; the local unique word set comprises a plurality of local unique word sequences; each local unique word corresponds to a unique one of the satellite communication subscribers.
Therefore, the data processing device for satellite communication user detection described in fig. 2 can obtain the user information in satellite communication through comprehensive processing such as dividing, calculating and updating the satellite communication data information, which is beneficial to solving the problem of collision among users generated by multiple access and improving the correct detection probability of multiple users.
In an alternative embodiment, as shown in FIG. 2, the determining module 203 determines a communication user information set based on the communication signal information and the local unique word set, including
Determining a peak position information set based on the communication signal information, the local unique word set and the autocorrelation model; the peak position information set comprises a plurality of peak position information; peak location information includes signal peaks and signal locations; the signal position represents the position of a signal peak value in the communication signal;
Determining a communication user information set based on the peak position information set and the threshold set; the set of thresholds includes at least 2 threshold values.
It can be seen that implementing the data processing apparatus for satellite communication user detection described in fig. 2 can determine the communication user information set based on the communication signal information and the local unique word set, which is beneficial to solving the problem of collision between users generated by multiple access and improving the correct detection probability of multiple users.
In yet another alternative embodiment, as shown in fig. 2, the determining module 203 determines the communication user information set based on the peak position information set and the threshold set, including:
for any peak position information, calculating power value information of the peak position information; the power value information comprises a maximum power ratio and an average power ratio;
performing size judgment and analysis on all power value information and threshold sets to obtain user identification result information; the user identification result information comprises a plurality of user identification results; each user identification result represents whether a satellite communication user exists in a signal position corresponding to the peak position information;
judging whether the user identification result information is null or not to obtain a user judgment result; the null value represents that satellite communication users do not exist in the user identification result information;
When the user judging result is negative, determining at least one piece of standby communication user information based on the user identifying result;
updating the communication signal information by using the standby communication user information, triggering and executing the communication signal information, the local unique word set and the autocorrelation model to determine a peak position information set;
and when the user judging result is yes, determining a communication user information set according to the standby communication user information.
It can be seen that implementing the data processing apparatus for satellite communication user detection described in fig. 2 can determine the communication user information set based on the peak position information set and the threshold set, which is beneficial to solving the problem of collision between users generated by multiple access and improving the correct detection probability of multiple users.
In yet another alternative embodiment, as shown in fig. 2, the determining module 203 calculates the power value information of the peak position information, including:
intercepting signals at the left and right sides of a signal position corresponding to the peak value position information to obtain interval signal information; the interval signal information comprises a plurality of first interval signals and a plurality of second interval signals; the first interval signal represents a signal at the left side of a signal position corresponding to the peak position information; the second interval signal represents a signal on the right of the signal position corresponding to the peak position information;
Performing autocorrelation power calculation on the interval signal information by using an autocorrelation model to obtain signal power value information corresponding to the peak value position information; the signal power value information comprises a plurality of signal power values;
screening the maximum value from the signal power value information to serve as a target signal power value;
carrying out average value calculation on the signal power value information to obtain an average power value;
calculating the ratio of the signal peak value corresponding to the peak value position information to the target signal power value to obtain the maximum power ratio corresponding to the peak value position information;
and calculating the ratio of the signal peak value corresponding to the peak value position information to the average power value to obtain the average power ratio corresponding to the peak value position information.
Therefore, implementing the data processing device for satellite communication user detection described in fig. 2 can obtain the power value information of the peak position information through calculation, which is more beneficial to solving the problem of collision among users generated by multiple access and improving the correct detection probability of multiple users.
In yet another alternative embodiment, as shown in FIG. 2, the threshold values include a first threshold value and a second threshold value;
the determining module 203 performs size judgment analysis on all the power value information and the threshold set to obtain user identification result information, including:
For any power value information, judging whether the maximum power ratio corresponding to the power value information is larger than or equal to a first threshold value, and obtaining a first threshold judgment result;
when the first threshold judging result is yes, judging whether the average power ratio corresponding to the power value information is larger than a second threshold value, and obtaining a second threshold judging result;
and when the second threshold judgment result is yes, determining that the user identification result corresponding to the power value information is that the satellite communication user exists.
Therefore, the data processing device for satellite communication user detection described in fig. 2 can perform size judgment and analysis on all power value information and threshold set to obtain user identification result information, which is more beneficial to solving the problem of collision among users generated by multiple access and improving the correct detection probability of multiple users.
In yet another alternative embodiment, as shown in FIG. 2, the determining module 203 updates the communication signal information with the alternate communication user information, including
Demodulating the signal from the communication signal corresponding to the standby communication user information based on the signal position corresponding to the standby communication user information to obtain an original signal;
carrying out signal reconstruction on the original signal to obtain a reconstructed signal;
Performing channel estimation on the original signal to obtain channel estimation information;
performing deletion update on communication signal information by using the reconstruction signal and the channel estimation information; the updated communication signal information does not contain the communication signal corresponding to the standby communication subscriber information.
Therefore, implementing the data processing device for satellite communication user detection described in fig. 2 can update the communication signal information by using the spare communication user information, which is more beneficial to solving the collision problem between users generated by multiple access and improving the correct detection probability of multiple users.
In yet another alternative embodiment, as shown in fig. 2, the dividing module 202 divides the satellite communication data information to obtain communication signal information, including:
acquiring the length of an intercepted signal; intercepting the signal length of the signal length representation communication signal;
and carrying out signal interception on the satellite communication data information based on the length of the intercepted signal to obtain communication signal information.
Therefore, the data processing device for satellite communication user detection described in fig. 2 can divide satellite communication data information to obtain communication signal information, which is more beneficial to solving the problem of collision among users generated by multiple access and improving the correct detection probability of multiple users.
Example III
Referring to fig. 3, fig. 3 is a schematic structural diagram of a data processing device for satellite communication user detection according to another embodiment of the present invention. The device described in fig. 3 can be applied to a satellite communication system, such as a local server or a cloud server for data processing management of satellite communication user detection, and the embodiment of the invention is not limited. As shown in fig. 3, the apparatus may include:
a memory 301 storing executable program code;
a processor 302 coupled with the memory 301;
processor 302 invokes executable program code stored in memory 301 for performing the steps in the data processing method for satellite communication user detection described in embodiment one.
Example IV
The embodiment of the invention discloses a computer-readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to execute the steps in the data processing method for satellite communication user detection described in the embodiment.
Example five
The present invention discloses a computer program product comprising a non-transitory computer readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform the steps of the data processing method for satellite communication user detection described in the embodiment.
The apparatus embodiments described above are merely illustrative, in which the modules illustrated as separate components may or may not be physically separate, and the components shown as modules may or may not be physical, i.e., may be located in one place, or may be distributed over multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above detailed description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course by means of hardware. Based on such understanding, the foregoing technical solutions may be embodied essentially or in part in the form of a software product that may be stored in a computer-readable storage medium including Read-Only Memory (ROM), random-access Memory (Random Access Memory, RAM), programmable Read-Only Memory (Programmable Read-Only Memory, PROM), erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), one-time programmable Read-Only Memory (OTPROM), electrically erasable programmable Read-Only Memory (EEPROM), compact disc Read-Only Memory (Compact Disc Read-Only Memory, CD-ROM) or other optical disc Memory, magnetic disc Memory, tape Memory, or any other medium that can be used for computer-readable carrying or storing data.
Finally, it should be noted that: the embodiment of the invention discloses a data processing method and a data processing device for satellite communication user detection, which are disclosed as preferred embodiments of the invention, and are only used for illustrating the technical scheme of the invention, but not limiting the technical scheme; although the invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that; the technical scheme recorded in the various embodiments can be modified or part of technical features in the technical scheme can be replaced equivalently; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (8)
1. A data processing method for satellite communication user detection, the method comprising:
receiving satellite communication data information;
dividing the satellite communication data information to obtain communication signal information; the communication signal information comprises a plurality of communication signals; the signal length of each communication signal is consistent;
determining a communication user information set based on the communication signal information and the local unique word set; the communication user information set comprises a plurality of communication user information; the local unique word set comprises a plurality of local unique word sequences; each local unique word corresponds to a unique one of the satellite communication subscribers;
Wherein the determining the communication user information set based on the communication signal information and the local unique word set comprises
Determining a peak position information set based on the communication signal information, the local unique word set and the autocorrelation model; the peak position information set comprises a plurality of peak position information; the peak position information includes a signal peak value and a signal position; the signal position represents the position of a signal peak value in a communication signal;
determining a communication user information set based on the peak position information set and the threshold set; the threshold set includes at least 2 threshold values;
wherein, based on the peak position information set and the threshold set, determining the communication user information set includes:
calculating power value information of the peak position information for any peak position information; the power value information comprises a maximum power ratio and an average power ratio;
performing size judgment and analysis on all power value information and the threshold set to obtain user identification result information; the user identification result information comprises a plurality of user identification results; each user identification result represents whether the satellite communication user exists in the signal position corresponding to the peak position information;
Judging whether the user identification result information is null or not to obtain a user judgment result; the null value characterizes that the satellite communication user does not exist in the user identification result information;
when the user judgment result is negative, determining at least one piece of standby communication user information based on the user identification result;
updating the communication signal information by using the standby communication user information, and triggering and executing the method based on the communication signal information, the local unique word set and the autocorrelation model to determine a peak position information set;
and when the user judging result is yes, determining a communication user information set according to the standby communication user information.
2. The data processing method for satellite communication subscriber detection according to claim 1, wherein said calculating the power value information of the peak position information comprises:
intercepting signals at the left and right sides of a signal position corresponding to the peak value position information to obtain interval signal information; the interval signal information comprises a plurality of first interval signals and a plurality of second interval signals; the first interval signal represents a signal at the left side of a signal position corresponding to the peak position information; the second interval signal represents a signal on the right of the signal position corresponding to the peak position information;
Performing autocorrelation power calculation on the interval signal information by using the autocorrelation model to obtain signal power value information corresponding to the peak value position information; the signal power value information comprises a plurality of signal power values;
screening the maximum value from the signal power value information to be used as a target signal power value;
carrying out average value calculation on the signal power value information to obtain an average power value;
calculating the ratio of the signal peak value corresponding to the peak value position information to the target signal power value to obtain the maximum power ratio corresponding to the peak value position information;
and calculating the ratio of the signal peak value corresponding to the peak value position information to the average power value to obtain the average power ratio corresponding to the peak value position information.
3. The data processing method for satellite communication user detection of claim 1, wherein the threshold values comprise a first threshold value and a second threshold value;
and performing size judgment analysis on all the power value information and the threshold set to obtain user identification result information, wherein the method comprises the following steps of:
for any power value information, judging whether the maximum power ratio corresponding to the power value information is larger than or equal to the first threshold value, and obtaining a first threshold judgment result;
When the first threshold judgment result is yes, judging whether the average power ratio corresponding to the power value information is larger than the second threshold value, and obtaining a second threshold judgment result;
and when the second threshold judgment result is yes, determining that the user identification result corresponding to the power value information is that the satellite communication user exists.
4. The method for satellite communication subscriber detection data processing according to claim 1, wherein said updating said communication signal information with said alternate communication subscriber information comprises
Demodulating a signal by utilizing a communication signal corresponding to the standby communication user information based on the signal position corresponding to the standby communication user information to obtain an original signal;
carrying out signal reconstruction on the original signal to obtain a reconstructed signal;
performing channel estimation on the original signal to obtain channel estimation information;
performing deletion update on the communication signal information by utilizing the reconstruction signal and the channel estimation information; the updated communication signal information does not contain the communication signal corresponding to the standby communication user information.
5. The method for processing data for satellite communication user detection according to claim 1, wherein said dividing the satellite communication data information to obtain communication signal information comprises:
Acquiring the length of an intercepted signal; the intercepted signal length represents the signal length of the communication signal;
and carrying out signal interception on the satellite communication data information based on the length of the intercepted signal to obtain communication signal information.
6. A data processing apparatus for satellite communication user detection, the apparatus comprising:
the receiving module is used for receiving satellite communication data information;
the segmentation module is used for segmenting the satellite communication data information to obtain communication signal information; the communication signal information comprises a plurality of communication signals; the signal length of each communication signal is consistent;
the determining module is used for determining a communication user information set based on the communication signal information and the local unique word set; the communication user information set comprises a plurality of communication user information; the local unique word set comprises a plurality of local unique word sequences; each local unique word corresponds to a unique one of the satellite communication subscribers;
wherein the determining the communication user information set based on the communication signal information and the local unique word set comprises
Determining a peak position information set based on the communication signal information, the local unique word set and the autocorrelation model; the peak position information set comprises a plurality of peak position information; the peak position information includes a signal peak value and a signal position; the signal position represents the position of a signal peak value in a communication signal;
Determining a communication user information set based on the peak position information set and the threshold set; the threshold set includes at least 2 threshold values;
wherein, based on the peak position information set and the threshold set, determining the communication user information set includes:
calculating power value information of the peak position information for any peak position information; the power value information comprises a maximum power ratio and an average power ratio;
performing size judgment and analysis on all power value information and the threshold set to obtain user identification result information; the user identification result information comprises a plurality of user identification results; each user identification result represents whether the satellite communication user exists in the signal position corresponding to the peak position information;
judging whether the user identification result information is null or not to obtain a user judgment result; the null value characterizes that the satellite communication user does not exist in the user identification result information;
when the user judgment result is negative, determining at least one piece of standby communication user information based on the user identification result;
updating the communication signal information by using the standby communication user information, and triggering and executing the method based on the communication signal information, the local unique word set and the autocorrelation model to determine a peak position information set;
And when the user judging result is yes, determining a communication user information set according to the standby communication user information.
7. A data processing apparatus for satellite communication user detection, the apparatus comprising:
a memory storing executable program code;
a processor coupled to the memory;
the processor invokes the executable program code stored in the memory to perform the data processing method for satellite communication user detection as claimed in any one of claims 1 to 5.
8. A computer storage medium storing computer instructions which, when invoked, are adapted to perform the data processing method for satellite communication user detection of any one of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310140386.5A CN116155358B (en) | 2023-02-20 | 2023-02-20 | Data processing method and device for satellite communication user detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310140386.5A CN116155358B (en) | 2023-02-20 | 2023-02-20 | Data processing method and device for satellite communication user detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116155358A CN116155358A (en) | 2023-05-23 |
| CN116155358B true CN116155358B (en) | 2023-08-01 |
Family
ID=86361526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310140386.5A Active CN116155358B (en) | 2023-02-20 | 2023-02-20 | Data processing method and device for satellite communication user detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116155358B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3419367B2 (en) * | 1999-11-29 | 2003-06-23 | 日本電気株式会社 | Unique word detection circuit and unique word detection method |
| EP2254265A3 (en) * | 2005-01-05 | 2013-11-27 | ATC Technologies, LLC | Adaptive beam forming with multi-user detection and interference reduction in satellite communication systems and methods |
| PL3462638T3 (en) * | 2008-11-18 | 2020-07-27 | Viasat Inc. | Efficient control signaling over shared communication channels with wide dynamic range |
| CN110535524B (en) * | 2019-08-27 | 2020-08-28 | 中科芯(苏州)微电子科技有限公司 | Laser satellite relay communication method and device |
-
2023
- 2023-02-20 CN CN202310140386.5A patent/CN116155358B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN116155358A (en) | 2023-05-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3104657B1 (en) | Method, device and system for detecting random access signal in interference environment | |
| DE69935619T2 (en) | BASED DATA RATE ORDER BASED ON ESTIMATED PERFORMANCE SPECTRUM DENSITY | |
| CN112217538B (en) | Method and device for rapidly capturing spread spectrum signal of large dynamic satellite communication system | |
| CN112751629A (en) | Broadband specific signal detection method based on time-frequency image processing | |
| CN101098186A (en) | Method for accessing randomly front detection dynamic threshold | |
| CN116155358B (en) | Data processing method and device for satellite communication user detection | |
| CN115002894A (en) | Uplink timing synchronization method, device, equipment and storage medium | |
| CN116319187B (en) | Data processing method and device for satellite Internet of things system | |
| KR100934170B1 (en) | Channel Estimation Apparatus and Method in Multi-antenna Wireless Communication System | |
| US10225805B2 (en) | Method for controlling the transmission power | |
| US11412378B2 (en) | Smoothing technology-based blind authentication method and system for frequency selective fading channel | |
| CN109600361B (en) | Hash algorithm-based verification code anti-attack method and device, electronic equipment and non-transitory computer readable storage medium | |
| US20140177677A1 (en) | Method and device for signal processing in spread spectrum system | |
| CN112995073B (en) | Channel estimation method, device, equipment and storage medium | |
| JP6552753B2 (en) | Method and device for performing channel estimation | |
| CN116131913B (en) | Control method and device for multi-system satellite mobile communication system | |
| CN111726180A (en) | Method and device for detecting preamble signal | |
| CN116805291B (en) | Unmanned aerial vehicle signal frequency band detection method and device | |
| CN115173975B (en) | Method, device, equipment and storage medium for detecting interference signal | |
| CN116647929A (en) | Equipment access method, terminal equipment, base station and electronic equipment | |
| Kubankova et al. | Digital modulation recognition based on feature, spectrum and phase analysis and its testing with disturbed signals | |
| CN114257256B (en) | Noise estimation method, apparatus, device, and readable storage medium | |
| US20140226633A1 (en) | Method and Apparatus for Code Activation, Computer Program and Storage Medium Thereof | |
| US11510055B2 (en) | Smoothing-technology-based physical layer blind authentication method and system for time-varying fading channel | |
| CN117295181A (en) | NR preamble sequence detection method, device, equipment and storage medium |
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 |