WO2020191687A1 - Procédé et dispositif de traitement de données - Google Patents

Procédé et dispositif de traitement de données Download PDF

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Publication number
WO2020191687A1
WO2020191687A1 PCT/CN2019/079989 CN2019079989W WO2020191687A1 WO 2020191687 A1 WO2020191687 A1 WO 2020191687A1 CN 2019079989 W CN2019079989 W CN 2019079989W WO 2020191687 A1 WO2020191687 A1 WO 2020191687A1
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Prior art keywords
synchronization
frame
code
time information
data
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PCT/CN2019/079989
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English (en)
Chinese (zh)
Inventor
刘全红
屈玉鑫
陈天水
张翃敔
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鹤壁天海电子信息系统有限公司
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Priority to PCT/CN2019/079989 priority Critical patent/WO2020191687A1/fr
Publication of WO2020191687A1 publication Critical patent/WO2020191687A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter

Definitions

  • the present invention belongs to the field of communication technology, and more specifically, relates to a data processing method and device.
  • the interference they receive includes broadband interference, tracking interference, and recording and playback interference.
  • Broadband interference refers to the interference signal in a specific wide frequency band, such as VHF frequency band ( 30MHz ⁇ 88MHz)
  • tracking interference means that the jammer recognizes the working frequency of the transmitting terminal (that is, the transmitting end of the signal), and then releases the interference signal of the same frequency according to the working frequency of the transmitting terminal;
  • recording and playback interference means that the jammer records The superframe transmitted by the transmitting terminal is then transmitted as interference.
  • the method used by the transmitting terminal is to preset a super frame for the transmitting terminal.
  • the super frame includes a synchronization frame and a data frame.
  • the synchronization frame is used for synchronization between the transmitting terminal and the receiving terminal.
  • the data exchanged between the transmitting terminal and the receiving terminal is sent, and the synchronization frame uses spread spectrum technology to cyclically send a fixed synchronization correlation code, such as PN code (Pseudo-Noise Code), for anti-interference, that is, the synchronization frame includes Multiple PN codes (such as more than 30 PN codes), and these multiple PN codes are the same, but this method will reserve enough response time for interception, increase the possibility of synchronization correlation code being intercepted, and interfere with the machine
  • PN code Pseudo-Noise Code
  • the object of the present invention is to provide a data processing method and device, which are used to reduce the possibility of the synchronization correlation code being intercepted, thereby improving the anti-interference ability.
  • the technical solutions are as follows:
  • the present invention provides a data processing method, which includes:
  • the synchronization frame encapsulated with the first synchronization correlation code and the data frame encapsulated with the second synchronization correlation code are sequentially sent.
  • the determining the first synchronization correlation code corresponding to the synchronization frame of the super frame to be sent and the second synchronization correlation code corresponding to the data frame of the super frame to be sent includes:
  • the first time information and the second time information are respectively used as input time information, and the following steps are performed on the input time information:
  • the pseudo-random operation is performed on the input time information to obtain the code table address corresponding to the input time information, and the code table address corresponding to the input time information is determined from a preset code table library
  • the synchronization correlation code corresponding to the input time information includes:
  • the method further includes: grouping the service data corresponding to the data frame by using a preset length, and encoding each group of service data using a turbo code with a code rate of 1/R, where R is a constant;
  • the service data after diversity is modulated by rotating binary phase shift keying modulation.
  • the present invention also provides a data processing method, which includes:
  • the present invention also provides a data processing device, which includes:
  • the determining unit is configured to determine the first synchronization correlation code corresponding to the synchronization frame of the superframe to be sent and the second synchronization correlation code corresponding to the data frame of the superframe to be sent, wherein different synchronization frames correspond to different first synchronization correlations Code, different data frames correspond to different second synchronization correlation codes;
  • An encapsulation unit configured to encapsulate the first synchronization correlation code in the first frame block and the second frame block of the synchronization frame, and encapsulate the second synchronization correlation code in the data frame In the first frame block;
  • the sending unit is configured to sequentially send the synchronization frame encapsulated with the first synchronization correlation code and the data frame encapsulated with the second synchronization correlation code.
  • the determining unit includes:
  • An acquiring subunit configured to acquire first time information corresponding to the synchronization frame and second time information corresponding to the data frame
  • the determining subunit is configured to use the first time information and the second time information as input time information, respectively, and perform the following steps on the input time information:
  • the determining subunit is specifically configured to logically shift the input time information to the right to obtain the input time information after the right shift, and perform pseudo-random on the input time information and the preset key after the right shift Operation, the code table address corresponding to the input time information is obtained, and the synchronization related code stored in the address indicated by the code table address corresponding to the input time information is selected from the preset code table library, and the selected synchronization
  • the correlation code is determined as a synchronization correlation code corresponding to the input time information, wherein the right shift number of the input time information is related to the time difference between the transmitting terminal and the receiving terminal.
  • the device further includes: a grouping unit, configured to group the service data corresponding to the data frame by using a preset length, and encode each group of service data using a turbo code with a code rate of 1/R, R Constant
  • the diversity unit is used to perform data diversity processing on each group of encoded business data
  • the modulation unit is used to modulate the service data after diversity by using a rotary binary phase shift keying modulation method.
  • the present invention also provides a data processing device, which includes:
  • the acquiring unit is used to sequentially acquire the synchronization frame encapsulated with the first synchronization correlation code and the data frame encapsulated with the second synchronization correlation code, wherein different synchronization frames correspond to different first synchronization correlation codes, and different data frames correspond to different Second synchronization correlation code;
  • the synchronization unit is configured to perform synchronization according to the first synchronization correlation code in the synchronization frame, and to perform synchronization according to the second synchronization correlation code in the data frame.
  • the present invention also provides a storage medium in which computer program codes are stored, and when the computer program codes are executed, the above-mentioned data processing method is implemented.
  • the present invention also provides a data processing device.
  • the data processing device includes a memory and a processor.
  • the memory stores a program that can run on the processor, and the processor implements the above data processing method when the program is executed.
  • the first synchronization correlation code is encapsulated in the synchronization frame.
  • the second synchronization correlation code is encapsulated in the first frame block of the data frame, and the synchronization frame encapsulated with the first synchronization correlation code and the second synchronization are encapsulated in sequence The data frame of the relevant code.
  • Fig. 1 is a flowchart of a data processing method provided by an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a superframe to be sent provided by an embodiment of the present invention
  • FIG. 3 is a flowchart of another data processing method provided by an embodiment of the present invention.
  • FIG. 5 is a flowchart of yet another data processing method provided by an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a data processing device provided by an embodiment of the present invention.
  • Figure 7 is a schematic structural diagram of another data processing device provided by an embodiment of the present invention.
  • Fig. 8 is a schematic structural diagram of yet another data processing device provided by an embodiment of the present invention.
  • FIG. 1 shows a flowchart of a data processing method provided by an embodiment of the present invention, which is used to improve anti-interference ability.
  • the data processing method shown in FIG. 1 may include the following steps:
  • the superframe to be sent includes: a synchronization frame and at least one data frame.
  • the first synchronization correlation corresponding to the synchronization frame in the superframe to be sent The code is different from the first synchronization correlation code corresponding to the synchronization frame in other superframes to be sent
  • the second synchronization correlation code corresponding to the data frame in the superframe to be sent is different from the second synchronization correlation code corresponding to the data frames in other superframes to be sent
  • Correlation code which makes it impossible to use the intercepted synchronization correlation code for interference even if the synchronization frame in a to-be-transmitted superframe and the synchronization correlation code in any one of the data frames are intercepted, thereby improving the anti-interference ability.
  • the first synchronization correlation code corresponding to the synchronization frame and the second synchronization correlation code corresponding to the data frame may be the same or different, and the second synchronization corresponding to all data frames included in the superframe to be transmitted
  • the correlation codes can be the same or the second synchronization correlation codes corresponding to at least part of the data frames are different.
  • a feasible way to determine the first synchronization correlation code and the second synchronization correlation code is to obtain the first TOD (Time Of Day, time information) corresponding to the synchronization frame and the second TOD corresponding to the data frame; Using the first TOD and the second TOD as the input TOD respectively, perform the following steps on the input TOD: perform a pseudo-random operation on the input TOD to obtain the code table address corresponding to the input TOD, and according to the code table address corresponding to the input TOD, from the preset
  • the synchronization correlation code corresponding to the input TOD is determined in the code table library.
  • the synchronization correlation code corresponding to the input TOD is the first synchronization correlation code
  • the input TOD is the second TOD
  • the synchronization correlation code of is the second synchronization correlation code.
  • the first TOD and the second TOD can be a time set according to rules, such as the current time of the transmitting terminal or a preset initial time; or the first TOD is set according to rules
  • a time, such as the current time of the transmitting terminal or the preset initial time, the second TOD corresponding to the data frame can be obtained by performing a preset operation with a preset value based on the first TOD, such as a preset addend (such as 1) Perform the addition operation to get.
  • the second TOD corresponding to each data frame may be obtained by performing a preset operation with a preset value on the basis of the first TOD, that is, the second TOD corresponding to each data frame Same, of course, the second TOD corresponding to each data frame may also be different.
  • the second TOD corresponding to the first data frame in the superframe to be sent is obtained by performing a preset operation with a preset value on the basis of the first TOD.
  • the second TOD corresponding to other data frames except the first data frame is obtained by performing a preset operation with a preset value on the basis of the TOD corresponding to the previous data frame, such as the first data in the superframe to be sent
  • the second TOD corresponding to the frame is obtained by adding the preset addend (such as 1) on the basis of the first TOD, and the second TOD corresponding to the other data frames except the first data frame is the previous one
  • the TOD corresponding to the data frame is obtained by adding operation with the preset addend.
  • the first TOD corresponding to the synchronization frame in the superframe to be sent is different from the first TOD corresponding to the synchronization frame in other superframes to be sent
  • the second TOD corresponding to the data frame in the to-be-sent superframe is different from the second TOD corresponding to the data frame in other to-be-sent superframes.
  • a feasible way to obtain the TOD may be: the first TOD corresponding to the synchronization frame in the to-be-sent superframe It is obtained by performing a preset operation with a preset value on the basis of the second TOD corresponding to the last data frame in the previous superframe to be sent, such as the second TOD corresponding to the last data frame in the previous superframe to be sent.
  • the second TOD corresponding to the data frame in the superframe to be sent can be obtained by adding operation with the preset addend, referring to the above description of the second TOD.
  • the transmitting terminal and the receiving terminal may interact with multiple superframes to be sent in one communication.
  • the synchronization frame of the first superframe to be sent corresponds to
  • the first TOD and the second TOD corresponding to the data frame of the first to-be-sent superframe may be a time set according to rules, such as the current time of the transmitting terminal or the preset initial time, or refer to the description of the second TOD.
  • the second TOD corresponding to the data frame of the first to-be-sent superframe may be a time set according to rules, such as the current time of the transmitting terminal or the preset initial time, or refer to the description of the second TOD.
  • the second TOD corresponding to the data frame of the first to-be-sent superframe.
  • the first TOD and the first TOD can be obtained by referring to the above-mentioned feasible way of obtaining TOD.
  • the first TOD corresponding to the synchronization frame of the first superframe to be sent in different communications may be the second TOD corresponding to the last data frame of the last superframe to be sent in the previous communication based on the preset value. It is obtained by performing a preset operation, which is not described in detail in this embodiment.
  • the super frame to be sent includes a synchronization frame and a data frame.
  • the first frame block and the second frame block of the synchronization frame are used to encapsulate the first synchronization correlation code, and the first frame of the data frame
  • the block is used to encapsulate the second synchronization correlation code.
  • the to-be-sent superframe shown in Figure 2 takes 7 data frames (Frame1 to Frame7 respectively) as an example, but is not limited to The number of data frames to send the superframe, the synchronization frame Frame0 is the first frame of the superframe to be sent, in addition to the first frame block and the second frame block encapsulating the first synchronization correlation code, the third frame block is used for encapsulation NC (No Communication) code, the fourth frame block is used to encapsulate the TOD low bit, and the fifth frame block is used to encapsulate the control information bit, which is used to indicate the current communication rate.
  • the communication rate can be flexibly configured through the control information bit. Configure any communication rate from 80bps (bit rate) to 1200bps.
  • the formats of the data frames are the same.
  • the first frame block of the data frame is used to encapsulate the second synchronization correlation code, and the second frame block of the data frame is used for Encapsulating business data, 7 data frames can carry more business data.
  • the super frame in the prior art which can only send some simple commands, it can be applied to more business types and improve the scalability of the super frame to be sent. Sex.
  • the above steps can be performed in parallel. For example, in the process of sending the synchronization frame encapsulated with the first synchronization correlation code, the second synchronization correlation code corresponding to the data frame is determined, and the second synchronization correlation code is encapsulated during transmission. In the process of the data frame, determine the first synchronization correlation code corresponding to the synchronization frame of the other superframes to be sent.
  • the acquisition of the first TOD and the second TOD can be related to the number of frames sent, and an initial Time
  • the first TOD used when determining the first synchronization correlation code corresponding to the synchronization frame of the first superframe to be sent is the initial time
  • the second synchronization correlation code used when determining the data frame of the first superframe to be sent The second TOD and the first TOD and the second TOD related to other superframes to be sent are obtained by performing a preset operation with a preset value every time a frame is sent, for example, an operation of adding 1 is performed every time a frame is sent.
  • the first synchronization correlation code is encapsulated in the synchronization frame.
  • the second synchronization correlation code is encapsulated in the first frame block of the data frame, and the synchronization frame encapsulated with the first synchronization correlation code and the second synchronization are encapsulated in sequence The data frame of the relevant code.
  • FIG. 3 shows a flowchart of another data processing method provided by an embodiment of the present invention, which may include the following steps:
  • 303 Use a preset length to group the service data corresponding to the data frame, and use turbo codes with a code rate of 1/R to encode each group of service data, where R is a constant.
  • the preset length can be determined according to the actual application. For example, the code length corresponding to the turbo code with the code rate of 1/R can be used for grouping to obtain multiple sets of service data, and then the turbo code with the code rate of 1/R can be used for each group
  • use turbo codes with a bit rate of 1/10 for encoding For example, use turbo codes with a bit rate of 1/10 for encoding. The gain is only 0.5dB away from the Shannon limit, further improving the anti-interference ability.
  • the data diversity processing is to perform data repetition processing on each group of encoded business data separately. Take the encoded set of business data as an example. If the set of business data contains N bits of data, the N bits of data are repeated M times. N and M are natural numbers greater than one, respectively.
  • rotary BPSK Binary Phase Shift Keying, binary phase shift keying
  • the reason why the rotary BPSK modulation method is used for modulation is that the rotary BPSK modulation method will make the service data after the score set not pass the zero point, increase the power, and reduce the peak-to-average ratio (the experiment can reduce 3dB), thereby improving electromagnetic countermeasures ability.
  • the interleaver can also be used to process the encoded business data to disrupt the encoded business data, thereby improving Anti-interference ability
  • channel interleaving can be performed before the modulation is carried out by using the rotary BPSK modulation method to disrupt the service data after diversity again, which is also used to improve the anti-interference ability.
  • the coding gain and anti-interference ability of the service data can be improved by using turbo codes with a code rate of 1/R for encoding, data diversity processing, and rotating BPSK modulation for modulation.
  • turbo codes with a code rate of 1/R for encoding, data diversity processing, and rotating BPSK modulation for modulation.
  • the lengths of the first synchronization correlation code and the second synchronization correlation code are 2048
  • the code rate of the turbo code is 1/10
  • the number of repetitions used in data diversity processing are: 16, 8, 4, and 2.
  • the curve relationship between bit error rate and EbN0 is shown in Figure 4. It can be seen from Figure 4 that the SNR can be reduced by adjusting the code rate of the turbo code and the number of repetitions used in diversity.
  • the signal interference ratio at different communication rates when the data processing method provided in this embodiment is used is shown in Table 1. It can be seen from Table 1 that after the data processing method provided in this embodiment is applied to different types of service data, the signal-to-interference ratio is reduced, so that the anti-interference ability can be improved to effectively correspond to the interference device with larger power.
  • FIG. 5 shows a flowchart of yet another data processing method provided by an embodiment of the present invention, which may include the following steps:
  • 501 Acquire a synchronization frame encapsulated with a first synchronization correlation code and a data frame encapsulated with a second synchronization correlation code in sequence, wherein different synchronization frames correspond to different first synchronization correlation codes, and different data frames correspond to different second synchronizations
  • correlation code for the description of the first synchronization correlation code and the second synchronization correlation code, please refer to the relevant description in the foregoing method embodiment, which will not be described in this embodiment.
  • different synchronization frames correspond to different first synchronization correlation codes and different data frames correspond to different second synchronization correlation codes, so that even if the currently sent synchronization frame and the synchronization correlation code in any one of the data frames If they are intercepted, they cannot use the intercepted synchronization correlation code to interfere, and improve the anti-interference ability, and the first synchronization correlation code is only encapsulated in the first frame block and the second frame block of the synchronization frame, reducing the first frame in the synchronization frame.
  • the length of the synchronization correlation code reduces the response time reserved for interception, thereby reducing the possibility of the first synchronization correlation code being intercepted and further improving the anti-interference ability.
  • the receiving terminal can synchronize with the transmitting terminal according to the synchronization correlation code in the received frame to ensure the real-time and accuracy of synchronization.
  • FIG. 6 shows a data processing apparatus provided by an embodiment of the present invention, which may include: a determining unit 11, an encapsulating unit 12, and a sending unit 13.
  • the determining unit 11 is configured to determine the first synchronization correlation code corresponding to the synchronization frame of the super frame to be sent and the second synchronization correlation code corresponding to the data frame of the super frame to be sent, wherein different synchronization frames correspond to different first synchronization correlation codes , Different data frames correspond to different second synchronization correlation codes.
  • the superframe to be sent includes: a synchronization frame and at least one data frame.
  • the first synchronization correlation corresponding to the synchronization frame in the superframe to be sent The code is different from the first synchronization correlation code corresponding to the synchronization frame in other superframes to be sent
  • the second synchronization correlation code corresponding to the data frame in the superframe to be sent is different from the second synchronization correlation code corresponding to the data frames in other superframes to be sent
  • Correlation code which makes it impossible to use the intercepted synchronization correlation code for interference even if the synchronization frame in a to-be-transmitted superframe and the synchronization correlation code in any one of the data frames are intercepted, thereby improving the anti-interference ability.
  • an optional structure of the determining unit 11 is: the determining unit 11 includes: an acquiring subunit and a determining subunit, wherein the acquiring subunit is configured to acquire the first TOD corresponding to the synchronization frame and the corresponding data frame The second TOD. Determine the sub-units, which are used to use the first TOD and the second TOD as the input TOD respectively, and perform the following steps on the input TOD:
  • a pseudo-random operation is performed on the input TOD to obtain the code table address corresponding to the input TOD, and the synchronization correlation code corresponding to the input TOD is determined from the preset code table library according to the code table address corresponding to the input TOD.
  • One way to determine the synchronization correlation code corresponding to the input TOD is determined by the subunit: logically shift the input TOD to the right to obtain the input TOD after the right shift, and perform pseudo-random on the input TOD and the preset key after the right shift. Operate to obtain the code table address corresponding to the input TOD, select the synchronization correlation code stored in the address indicated by the code table address corresponding to the input TOD from the preset code table library, and determine the selected synchronization correlation code as corresponding to the input TOD In the synchronization correlation code of the input TOD, the right shift number of the input TOD is related to the time difference between the transmitting terminal and the receiving terminal. For the specific process, please refer to the relevant description in the above method embodiment, which will not be described in this embodiment.
  • the encapsulation unit 12 is used to encapsulate the first synchronization correlation code in the first frame block and the second frame block of the synchronization frame, and is used to encapsulate the second synchronization correlation code in the first frame block of the data frame
  • the data frame, the first frame block and the second frame block of the synchronization frame, and the first frame block of the data frame please refer to the relevant description in the above method embodiment, this embodiment No longer elaborate.
  • the sending unit 13 is configured to sequentially send the synchronization frame encapsulated with the first synchronization correlation code and the data frame encapsulated with the second synchronization correlation code.
  • the functions of the determining unit 11, the encapsulating unit 12, and the sending unit 13 can be executed in parallel.
  • the second synchronization corresponding to the data frame is determined.
  • Correlation code in the process of sending the data frame encapsulated with the second synchronization correlation code, determine the first synchronization correlation code corresponding to the synchronization frame of other superframes to be sent.
  • the first TOD and the second TOD are The acquisition can be related to the number of frames sent, an initial time is set, and the first TOD used when determining the first synchronization correlation code corresponding to the synchronization frame of the first superframe to be sent is the initial time.
  • the second TOD used in the second synchronization correlation code corresponding to the data frame and the first TOD and the second TOD related to other superframes to be sent will be obtained by performing a preset operation with a preset value every time a frame is sent. Add 1 operation for one frame.
  • the first synchronization correlation code is encapsulated in the synchronization frame.
  • the second synchronization correlation code is encapsulated in the first frame block of the data frame, and the synchronization frame encapsulated with the first synchronization correlation code and the second synchronization are encapsulated in sequence The data frame of the relevant code.
  • this embodiment further provides another data processing device whose structure is shown in FIG. 7 and may further include a grouping unit 14, a diversity unit 15 and a modulation unit 16.
  • the grouping unit 14 is configured to group the service data corresponding to the data frame with a preset length, and use turbo codes with a code rate of 1/R to encode each group of service data, where R is a constant.
  • the preset length can be determined according to the actual application. For example, the code length corresponding to the turbo code with the code rate of 1/R can be used for grouping to obtain multiple sets of service data, and then the turbo code with the code rate of 1/R can be used for each group
  • the code length corresponding to the turbo code with the code rate of 1/R can be used for grouping to obtain multiple sets of service data, and then the turbo code with the code rate of 1/R can be used for each group
  • turbo code with a bit rate of 1/10 for encoding and use turbo codes with a low bit rate for encoding to increase the coding gain.
  • turbo codes with a bit rate of 1/10 for encoding use turbo codes with a bit rate of 1/10 for encoding.
  • the gain is only 0.5dB away from the Shannon limit, further improving the anti-interference ability.
  • the diversity unit 15 is used to perform data diversity processing on each group of encoded service data.
  • the data diversity processing is to perform data repetition processing on each group of encoded business data separately.
  • the encoded set of business data Take the encoded set of business data as an example. If the set of business data contains N bits of data, the N bits of data are repeated M times. N and M are natural numbers greater than one, respectively.
  • the modulation unit 16 is used to modulate the service data after diversity by using a rotary binary phase shift keying modulation method.
  • the reason why the rotary BPSK modulation method is used for modulation is that the rotary BPSK modulation method will make the service data after the score set not pass the zero point, increase the power, and reduce the peak-to-average ratio (the experiment can reduce 3dB), thereby improving electromagnetic countermeasures ability.
  • the data processing device encodes the business data, before performing data diversity processing on the business data, it can also use an interleaver to process the encoded business data to disrupt
  • the coded service data can improve the anti-interference ability.
  • channel interleaving can be performed before the rotary BPSK modulation method is used for modulation to disrupt the diversity service data again, which is also used to improve the anti-interference ability.
  • FIG. 8 shows still another data processing apparatus provided by an embodiment of the present invention, which may include: an acquiring unit 21 and a synchronization unit 22.
  • the acquiring unit 21 is configured to sequentially acquire a synchronization frame encapsulated with a first synchronization correlation code and a data frame encapsulated with a second synchronization correlation code, wherein different synchronization frames correspond to different first synchronization correlation codes, and different data frames correspond to different
  • first synchronization correlation code and the second synchronization correlation code please refer to the relevant description in the above method embodiment, which will not be described in this embodiment.
  • the synchronization unit 22 is configured to synchronize according to the first synchronization correlation code in the synchronization frame, and to synchronize according to the second synchronization correlation code in the data frame, so that after receiving the synchronization frame and the data frame, the receiving terminal passes through the A synchronization correlation code and a second synchronization correlation code are synchronized with the transmitting terminal.
  • this embodiment does not More details.
  • different synchronization frames correspond to different first synchronization correlation codes and different data frames correspond to different second synchronization correlation codes, so that even if the currently sent synchronization frame and the synchronization correlation code in any one of the data frames If they are intercepted, they cannot use the intercepted synchronization correlation code to interfere, and improve the anti-interference ability, and the first synchronization correlation code is only encapsulated in the first frame block and the second frame block of the synchronization frame, reducing the first frame in the synchronization frame.
  • the length of the synchronization correlation code reduces the response time reserved for interception, thereby reducing the possibility of the first synchronization correlation code being intercepted and further improving the anti-interference ability.
  • the receiving terminal can synchronize with the transmitting terminal according to the synchronization correlation code in the received frame to ensure the real-time and accuracy of synchronization.
  • this embodiment also provides a storage medium in which computer program codes are stored, and when the computer program codes are executed, the above-mentioned data processing method is implemented.
  • the data processing device includes a memory and a processor.
  • the memory stores a program that can run on the processor, and the processor implements the above data processing method when the program is executed.

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Abstract

L'invention concerne un procédé et un dispositif de traitement de données. Le procédé consiste à : déterminer un premier code de corrélation de synchronisation correspondant à une trame de synchronisation d'une supertrame à transmettre et un second code de corrélation de synchronisation correspondant à une trame de données ; encapsuler le premier code de corrélation de synchronisation dans un premier bloc de trame et un second bloc de trame de la trame de synchronisation ; encapsuler le second code de corrélation de synchronisation dans un premier bloc de trame de la trame de données ; et transmettre séquentiellement la trame de synchronisation et la trame de données dans lesquelles sont encapsulés les codes de corrélation de synchronisation. Étant donné que des trames de synchronisation différentes correspondent à des premiers codes de corrélation de synchronisation différents et que des trames de données différentes correspondent à des seconds codes de corrélation de synchronisation différents, même si un code de corrélation de synchronisation présent dans n'importe quelle trame actuellement envoyée est intercepté, il n'est pas possible d'utiliser le code de corrélation de synchronisation intercepté pour réaliser un brouillage, et par conséquent le procédé de l'invention améliore les propriétés anti-brouillage. De plus, le premier code de corrélation de synchronisation n'est encapsulé que dans le premier bloc de trame et le second bloc de trame de la trame de synchronisation, la longueur du premier code de corrélation de synchronisation est réduite, réduisant ainsi le temps de réaction disponible pour l'interception et en conséquence la possibilité d'interception du premier code de corrélation de synchronisation, et par conséquent le procédé de l'invention améliore les propriétés anti-brouillage.
PCT/CN2019/079989 2019-03-28 2019-03-28 Procédé et dispositif de traitement de données WO2020191687A1 (fr)

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CN103259629A (zh) * 2013-05-16 2013-08-21 西安烽火电子科技有限责任公司 一种短波速率自适应通信方法

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US20020064211A1 (en) * 2000-08-30 2002-05-30 Po-Tsun Chen Method and apparatus for code group identification and frame synchronization in DS/CDMA systems
CN103259629A (zh) * 2013-05-16 2013-08-21 西安烽火电子科技有限责任公司 一种短波速率自适应通信方法

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