CN111934714B - Anti-interference communication method and device - Google Patents
Anti-interference communication method and device Download PDFInfo
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- CN111934714B CN111934714B CN202010704801.1A CN202010704801A CN111934714B CN 111934714 B CN111934714 B CN 111934714B CN 202010704801 A CN202010704801 A CN 202010704801A CN 111934714 B CN111934714 B CN 111934714B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
- H04B1/715—Interference-related aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0071—Use of interleaving
Abstract
The invention provides an anti-interference communication method and an anti-interference communication device, wherein the method comprises the following steps: the transmitting equipment performs signal frequency hopping processing on a signal to be transmitted to obtain a frequency hopping signal; the interference equipment carries out interference calculation on the frequency hopping signal to obtain an interference signal; and the receiving equipment decodes the interference signal to obtain transmission code element information. The invention uses the larger interference power of the interference equipment to help the transmitting end to send the signal to the receiving end under the environment of tracking interference under the condition that the distance between two communication parties is far and the transmitting power of the transmitting end is smaller, thereby ensuring the correctness of the signal, and simultaneously, the invention uses the interleaving coding and decoding technology to enhance the capability of resisting burst errors in the communication process.
Description
Technical Field
The invention mainly relates to the field of communication anti-interference, in particular to an anti-interference communication method and device.
Background
Frequency hopping communication techniques avoid the effects of interference on the signal by hopping of the carrier frequency. The anti-interference and anti-interception performances of the system show great superiority in the modern communication field. Generally, the law of frequency hopping is not known by an interferer, however, with the development of artificial intelligence, the interfering device can very easily sense the hopping law of frequencies of two parties of communication, and then perform frequency tracking type interference. Tracking interference can weaken frequency hopping communications like fixed frequency communications, becoming the biggest threat to frequency hopping communications.
At present, most of measures for dealing with frequency tracking interference are based on evasive anti-interference, however, if the distance between two communication parties is long, the transmitting power of a sender is small, the signal power transmitted on a line is gradually attenuated, and finally, a receiving error is caused, so that the receiving end needs to be ensured to correctly receive signals under the condition while resisting interference. If a repeater is added between two communication parties, the process from the repeater receiving the signal to the repeater transmitting the signal in a regeneration mode causes time delay, and the repeater can also have adverse effects once the repeater fails.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide an anti-interference communication method and apparatus, aiming at the defects of the prior art.
The technical scheme for solving the technical problems is as follows: an anti-interference communication method, comprising the steps of:
the transmitting equipment performs signal frequency hopping processing on a signal to be transmitted to obtain a frequency hopping signal;
the interference equipment carries out interference calculation on the frequency hopping signal to obtain an interference signal;
and the receiving equipment decodes the interference signal to obtain transmission code element information.
Another technical solution of the present invention for solving the above technical problems is as follows: an apparatus for interference-resistant communication, comprising:
the transmitting equipment processing module is used for performing signal frequency hopping processing on a signal to be transmitted by the transmitting equipment to obtain a frequency hopping signal;
the interference equipment processing module is used for carrying out interference calculation on the frequency hopping signal by the interference equipment to obtain an interference signal;
and the receiving equipment processing module is used for decoding the interference signal by the receiving equipment to obtain the transmission code element information.
The invention has the beneficial effects that: the transmitting equipment performs frequency hopping processing on a signal to be transmitted to obtain a frequency hopping signal, the interference equipment performs interference calculation on the frequency hopping signal to obtain an interference signal, under the environment of tracking interference, the transmitting end is helped to transmit the signal to the receiving end by using the larger interference power of the interference equipment under the condition that the distance between two communication parties is far and the transmitting power of the transmitting end is small, the correctness of the signal is ensured, the receiving equipment performs decoding processing on the interference signal to obtain transmission code element information, and the capability of resisting burst errors in the communication process is enhanced by using an interleaving coding and decoding technology.
Drawings
Fig. 1 is a schematic flowchart of an anti-interference communication method according to an embodiment of the present invention;
fig. 2 is a structural model diagram of an anti-interference communication method according to another embodiment of the present invention;
fig. 3 is a block diagram of an interference rejection communication apparatus according to an embodiment of the present invention.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Fig. 1 is a flowchart illustrating an anti-interference communication method according to an embodiment of the present invention.
As shown in fig. 1, an anti-interference communication method includes the following steps:
the transmitting equipment performs signal frequency hopping processing on a signal to be transmitted to obtain a frequency hopping signal;
the interference equipment carries out interference calculation on the frequency hopping signal to obtain an interference signal;
and the receiving equipment decodes the interference signal to obtain transmission code element information.
In the above embodiment, the transmitting device performs frequency hopping on a signal to be transmitted to obtain a frequency hopping signal, the interfering device performs interference calculation on the frequency hopping signal to obtain an interference signal, and for the situation that the distance between two communication parties is long and the transmitting power of the transmitting end is low, the transmitting end is assisted by the large interference power of the interfering device to transmit the signal to the receiving end in a tracking interference environment, so that the correctness of the signal is ensured, the receiving device performs decoding processing on the interference signal to obtain transmission symbol information, and the interleaving coding and decoding technology is utilized to enhance the capability of resisting burst errors in the communication process.
Optionally, as an embodiment of the present invention, the process of performing, by the transmitting device, signal frequency hopping processing on a signal to be transmitted to obtain a frequency hopping signal includes:
carrying out signal coding on the signal to be sent to obtain a code element sequence;
carrying out interleaving coding on the code element sequence by using a coding interleaver to obtain a baseband signal;
performing digital modulation on the baseband signal to obtain a modulation signal;
performing frequency modulation processing on the baseband signal to obtain a frequency modulation carrier;
carrying out transformation processing on the frequency modulation carrier wave according to a preset frequency hopping sequence to obtain a carrier wave to be synthesized;
and synthesizing the carrier waves to be synthesized according to the modulation signals to obtain frequency hopping signals.
In the above embodiment, a signal of the signal to be transmitted is encoded to obtain a symbol sequence, and an encoder interleaver is used to perform interleaving encoding on the symbol sequence to obtain a baseband signal; digitally modulating the baseband signal to obtain a modulated signal; performing frequency modulation processing on the baseband signal to obtain a frequency modulation carrier; carrying out transformation processing on the frequency modulation carrier according to a preset frequency hopping sequence to obtain a carrier to be synthesized; and synthesizing the carrier to be synthesized according to the modulation signal to obtain a frequency hopping signal, providing a reliable signal for subsequent processing, ensuring the correctness of the signal, and enhancing the capability of resisting burst errors in the communication process by using an interleaving coding and decoding technology.
Optionally, as an embodiment of the present invention, the symbol sequence includes M information sequences, and the process of performing interleaving coding on the symbol sequence by using an interleaver to obtain a baseband signal includes:
inputting the M information sequences into the code interleaver by using an interleaving coding algorithm to perform interleaving matrix processing to obtain an MXN interleaving coding matrix;
and performing interleaving coding processing on the M multiplied by N interleaving coding matrix according to a mode of writing in by rows and reading out by columns to obtain a baseband signal d (t), wherein M is the number of rows and N is the number of columns.
It should be understood that the interleaving coding and decoding process is to encode M information sequences obtained after channel coding, form an M × N interleaving matrix for the input M information sequences by using an interleaving coding technique, write the interleaving matrix in rows and read the interleaving matrix in columns, and obtain the baseband signal d (t) after reading the interleaving matrix.
Specifically, the signal m (t) to be transmitted is source-coded to obtain a binary digit sequence m-010011100101, the sequence is transmitted with 3 symbols as a group to obtain m- (m1 m2 m3 m 4): 010011100101), and the channel encoder adds 3 parity symbols to an information code group according to a certain rule to form a code group with 6 symbolsn＝(n1 n2 n3 n4) When the channel coding is performed (010110011101100111101100), the channel coded binary digit sequence is read into a 4 × 6 interleaving matrix row by row to obtain the channel coded binary digit sequence
Then reading out the code group sequence c ═ (c) according to column1c2 c3 c4 c5 c6) This results in a binary baseband signal d (t) (001111000101111110100110).
In the above embodiment, an interleaving coding algorithm is used to input the M information sequences into an interleaving matrix in the coding interleaver for processing to obtain an mxn interleaving coding matrix; the interleaving coding processing is carried out on the M multiplied by N interleaving coding matrix according to the mode of writing in according to rows and reading out according to columns to obtain a baseband signal, a reliable signal is provided for the subsequent processing, the correctness of the signal is ensured, and meanwhile, the capability of resisting burst errors in the communication process is enhanced by utilizing the interleaving coding and decoding technology.
Optionally, as an embodiment of the present invention, the baseband signal d (t) includes a baseband frequency function, and the digitally modulating the baseband signal to obtain a modulated signal includes:
digitally modulating the baseband frequency function by a first equation to obtain a modulation signal, wherein the first equation is as follows:
where A (t) is an amplitude modulation function, j is an imaginary unit, s (t) is a modulation signal, fc(t) a baseband frequency function.
In the above embodiment, the modulation signal is obtained by digitally modulating the baseband frequency function in the first type, so as to provide a reliable signal for subsequent processing, ensure the correctness of the signal, and enhance the capability of resisting burst errors in the communication process by using the interleaving coding and decoding technology.
Optionally, as an embodiment of the present invention, the carrier to be synthesized includes a carrier frequency function to be synthesized, and the process of synthesizing the carrier to be synthesized according to the modulation signal to obtain the frequency hopping signal includes:
synthesizing the modulation signal and the carrier frequency function to be synthesized by a second formula to obtain a frequency hopping signal, wherein the second formula is as follows:
where A (t) is an amplitude modulation function, j is an imaginary unit, s (t) is a frequency hopping signal, fi∈{f1,f2,f3,......,fN}，fci(t) is the carrier frequency function to be synthesized.
Understandably, { f }1,f2,f3,......,fNAnd the frequency hopping sequence is a carrier frequency function set to be synthesized for hopping according to the frequency hopping sequence.
Specifically, the baseband signal d (t) follows a frequency hopping sequence from the frequency hopping frequency set { f) before bandpass transmission after carrier modulation1,f2,f3,......,fNTaking out corresponding control code, the control code will output corresponding local oscillation signal in frequency hopping time interval, then carrying out carrier modulation on d (t), the frequency set formed by frequency points corresponding to each code group is { f }1,f2,f3,f4,f5,f6}。
In the above embodiment, the frequency hopping signal is obtained by synthesizing the modulation signal and the carrier frequency function to be synthesized according to the second formula, which provides a basis for subsequent signal transmission, ensures the correctness of the signal, and enhances the capability of resisting burst errors in the communication process by using the interleaving coding and decoding technology.
Optionally, as an embodiment of the present invention, the frequency hopping signal includes a frequency hopping carrier frequency function, and the process of obtaining the interference signal by the interfering device performing interference calculation on the frequency hopping signal includes:
performing interference calculation on the frequency hopping carrier frequency function by using a frequency tracking interference method to obtain an interference signal, which specifically comprises the following steps:
performing interference calculation on the frequency hopping carrier frequency function through a third formula to obtain an interference signal, wherein the third formula is as follows:
f(s(t))＝B(t)exp(j2πfc(t+τ))，
wherein j is an imaginary unit, f (s (t)) is an interference signal, P (B (t)) > P (A (t)), fc(t + τ) is a frequency hopping carrier frequency function, τ is the time from sensing by the jamming device to emitting the jamming signal, and B (t) is a jamming signal amplitude modulation function.
It should be understood that, in the case that the interference is frequency tracking interference, the interfering device captures, by sensing, the signal transmitted by the transmitting end, and then performs the interference at the frequency point fiThe baseband signal d (t) controls the output of the interfering device, so that the interfering signal is related to the modulated signal s (t).
Specifically, in the time τ, the interferer senses and performs statistical analysis on the frequency hopping frequency of the communication party, calculates the communication frequency used by the current or next-hop communication party, and then adds the interference signal j (t) related to the modulation signal s (t) to the predicted frequency band.
In the above embodiment, the interference calculation on the frequency hopping carrier frequency function is performed by using a frequency tracking interference method to obtain an interference signal, so that the influence of the interference on the signal is avoided, the correctness of the signal is ensured, and meanwhile, the capability of resisting burst errors in the communication process is enhanced by using an interleaving coding and decoding technology.
Optionally, as an embodiment of the present invention, the process of the receiving device decoding the interference signal to obtain the transmission symbol information includes:
carrying out digital demodulation calculation on the interference signal according to the modulation signal to obtain a receiving signal;
de-interleaving decoding processing is carried out on the received signals to obtain information to be decoded;
and carrying out channel decoding processing on the information to be decoded to obtain transmission code element information.
Specifically, the receiving end receives the received signal r (t), which includes the modulation signal s (t) and the interference signal j (t) of the transmitting end, if the interference device does not track the frequency point f within the time t3Then the code group sequence obtained by demodulating the interference signal j (t) is
Writing to a deinterleaver by rows to obtain a matrix
The code group sequence read out by column is
After de-interleaving, each code block is only wrong by one bit, and can be corrected and decoded to obtain d (t).
In the above embodiment, the received signal is obtained by performing digital demodulation calculation on the interference signal according to the modulation signal; de-interleaving and decoding the received signal to obtain information to be decoded; the channel decoding processing of the information to be decoded obtains the transmission code element information, thereby ensuring the correctness of the signal, and simultaneously, the interleaving coding and decoding technology is utilized, thereby enhancing the capability of resisting burst errors in the communication process.
Optionally, as an embodiment of the present invention, the process of performing digital demodulation calculation on the interference signal according to the modulation signal to obtain a received signal includes:
performing digital demodulation calculation on the modulation signal and the interference signal by a fourth formula to obtain a received signal, wherein the fourth formula is as follows:
r(t)＝s(t)+j(t)，
wherein j (t) is an interference signal, s (t) is a modulation signal, and r (t) is a receiving signal.
In the above embodiment, the received signal is obtained by performing digital demodulation calculation on the modulated signal and the interference signal according to the fourth formula, so that the correctness of the signal is ensured, and meanwhile, the capability of resisting burst errors in the communication process is enhanced by using the interleaving coding and decoding technology.
Optionally, as an embodiment of the present invention, the process of performing deinterleaving decoding processing on the received signal to obtain information to be decoded includes:
inputting the received signal into a decoding interleaver with the same type as the encoding interleaver for interleaving matrix processing to obtain an MXN interleaving decoding matrix;
performing interleaving decoding processing on the MXN interleaving decoding matrix according to a rule of writing in according to rows and reading out according to columns to obtain information to be converted, wherein M is the number of rows and N is the number of columns;
and performing memoryless independent error conversion processing on the information to be converted to obtain the information to be decoded.
It should be understood that the de-interleaving decoding is performed at the receiving end, the information from the channel is sent to the same type of mxn interleaving matrix as the interleaver at the transmitting end, and is written in rows and read out in columns, and the information error distribution after reading is converted to memory-free independent errors.
In the above embodiment, the received signal is input to an interleaving matrix in a decoding interleaver of the same type as the encoding interleaver, and an mxn interleaving decoding matrix is obtained through processing; performing interleaving decoding processing on the MXN interleaving decoding matrix according to a rule of writing in according to rows and reading out according to columns to obtain information to be converted; the information to be decoded is obtained by the memoryless independent error conversion processing of the information to be converted, the correctness of signals is ensured, and meanwhile, the capability of resisting burst errors in the communication process is enhanced by utilizing the interleaving coding and decoding technology.
Optionally, as an embodiment of the present invention, as shown in fig. 2, the present invention includes a sending device, a receiving device, and an interfering device; a transmitting end firstly encodes a signal to be transmitted to obtain a code element sequence, then inputs the code element sequence into an interleaver for interleaving encoding, and then digitally modulates the code element sequence subjected to interleaving encoding to obtain a modulated signal; the frequency hopping sequence controls a frequency synthesis module to enable a frequency hopping carrier to be changed according to the frequency hopping sequence, and a modulation signal is modulated by the synthesized carrier, so that the frequency of an obtained sending signal is a frequency hopping signal hopped according to the frequency hopping sequence; the receiving end and the sending end have opposite processes, and the obtained modulation signal is decoded after digital demodulation and de-interleaving to obtain final transmission code element information; in this system, the hopping sequence used at the transmitting end must be synchronized with that used at the receiving end, so that the hopping frequencies of both the transmitting and receiving ends can be changed synchronously during communication. And the interference equipment senses the transmitting frequency point of the transmitting end and then carries out tracking interference.
Fig. 3 is a block diagram of an interference rejection communication apparatus according to an embodiment of the present invention.
Alternatively, as another embodiment of the present invention, as shown in fig. 3, an anti-jamming communication apparatus includes:
the transmitting equipment processing module is used for performing signal frequency hopping processing on a signal to be transmitted by the transmitting equipment to obtain a frequency hopping signal;
the interference equipment processing module is used for carrying out interference calculation on the frequency hopping signal by the interference equipment to obtain an interference signal;
and the receiving equipment processing module is used for decoding the interference signal by the receiving equipment to obtain the transmission code element information.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed.
Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. It will be understood that the technical solution of the present invention essentially contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. An anti-interference communication method, comprising the steps of:
the transmitting equipment performs signal frequency hopping processing on a signal to be transmitted to obtain a frequency hopping signal;
the interference equipment carries out interference calculation on the frequency hopping signal to obtain an interference signal;
the receiving equipment decodes the interference signal to obtain transmission code element information;
the transmitting device performs signal frequency hopping processing on a signal to be transmitted, and the process of obtaining a frequency hopping signal comprises the following steps:
carrying out signal coding on the signal to be sent to obtain a code element sequence;
carrying out interleaving coding on the code element sequence by using a coding interleaver to obtain a baseband signal;
performing digital modulation on the baseband signal to obtain a modulation signal;
performing frequency modulation processing on the baseband signal to obtain a frequency modulation carrier;
carrying out transformation processing on the frequency modulation carrier wave according to a preset frequency hopping sequence to obtain a carrier wave to be synthesized;
synthesizing the carrier waves to be synthesized according to the modulation signals to obtain frequency hopping signals;
the process that the receiving device decodes the interference signal to obtain the transmission code element information comprises the following steps:
carrying out digital demodulation calculation on the interference signal according to the modulation signal to obtain a receiving signal;
de-interleaving decoding processing is carried out on the received signals to obtain information to be decoded;
performing channel decoding processing on the information to be decoded to obtain transmission code element information;
the code element sequence comprises M information sequences, and the process of interleaving and coding the code element sequence by using a code interleaver to obtain a baseband signal comprises the following steps:
inputting the M information sequences into the code interleaver by using an interleaving coding algorithm to perform interleaving matrix processing to obtain an MXN interleaving coding matrix;
and performing interleaving coding processing on the M multiplied by N interleaving coding matrix according to a mode of writing in by rows and reading out by columns to obtain a baseband signal d (t), wherein M is the number of rows and N is the number of columns.
2. The method according to claim 1, wherein the baseband signal d (t) includes a baseband frequency function, and the step of digitally modulating the baseband signal to obtain a modulated signal includes:
digitally modulating the baseband frequency function by a first equation to obtain a modulation signal, wherein the first equation is as follows:
where A (t) is an amplitude modulation function, j is an imaginary unit, s (t) is a modulation signal, fc(t) a baseband frequency function.
3. The method according to claim 2, wherein the carrier to be synthesized includes a carrier frequency function to be synthesized, and the step of synthesizing the carrier to be synthesized according to the modulation signal to obtain the frequency hopping signal includes:
synthesizing the modulation signal and the carrier frequency function to be synthesized by a second formula to obtain a frequency hopping signal, wherein the second formula is as follows:
wherein A (t) is an amplitude modulation function, j is an imaginary unit, si(t) is a frequency hopping signal, fci(t) is the carrier frequency function to be synthesized.
4. The method according to claim 3, wherein the frequency hopping signal includes a frequency hopping carrier frequency function, the interfering device performs interference calculation on the frequency hopping signal, and obtaining the interference signal includes:
performing interference calculation on the frequency hopping carrier frequency function by using a frequency tracking interference method to obtain an interference signal, which specifically comprises the following steps:
performing interference calculation on the frequency hopping carrier frequency function through a third formula to obtain an interference signal, wherein the third formula is as follows:
f(s(t))＝B(t)exp(j2πfc(t+τ))，
wherein j is an imaginary unit, f (s (t)) is an interference signal, P (B (t)) > P (A (t)), fc(t + τ) is a frequency hopping carrier frequency function, τ is the time from sensing by the jamming device to emitting the jamming signal, and B (t) is a jamming signal amplitude modulation function.
5. The method according to claim 1, wherein said performing digital demodulation calculation on the interference signal according to the modulation signal to obtain a received signal comprises:
performing digital demodulation calculation on the modulation signal and the interference signal by a fourth formula to obtain a received signal, wherein the fourth formula is as follows:
r(t)＝s(t)+j(t)，
wherein j (t) is an interference signal, s (t) is a modulation signal, and r (t) is a receiving signal.
6. The method according to claim 1, wherein the step of performing de-interleaving decoding processing on the received signal to obtain information to be decoded comprises:
inputting the received signal into a decoding interleaver with the same type as the encoding interleaver for interleaving matrix processing to obtain an MXN interleaving decoding matrix;
performing interleaving decoding processing on the MXN interleaving decoding matrix according to a rule of writing in according to rows and reading out according to columns to obtain information to be converted, wherein M is the number of rows and N is the number of columns;
and performing memoryless independent error conversion processing on the information to be converted to obtain the information to be decoded.
7. An apparatus for interference-free communication, comprising:
the transmitting equipment processing module is used for performing signal frequency hopping processing on a signal to be transmitted by the transmitting equipment to obtain a frequency hopping signal;
the interference equipment processing module is used for carrying out interference calculation on the frequency hopping signal by the interference equipment to obtain an interference signal;
a receiving device processing module, configured to perform decoding processing on the interference signal by a receiving device to obtain transmission symbol information;
the transmitting device processing module is specifically configured to:
carrying out signal coding on the signal to be sent to obtain a code element sequence;
carrying out interleaving coding on the code element sequence by using a coding interleaver to obtain a baseband signal;
performing digital modulation on the baseband signal to obtain a modulation signal;
performing frequency modulation processing on the baseband signal to obtain a frequency modulation carrier;
carrying out transformation processing on the frequency modulation carrier wave according to a preset frequency hopping sequence to obtain a carrier wave to be synthesized;
synthesizing the carrier waves to be synthesized according to the modulation signals to obtain frequency hopping signals;
the receiving device processing module is specifically configured to:
carrying out digital demodulation calculation on the interference signal according to the modulation signal to obtain a receiving signal;
de-interleaving decoding processing is carried out on the received signals to obtain information to be decoded;
performing channel decoding processing on the information to be decoded to obtain transmission code element information;
the sequence of symbols includes M information sequences, the transmitting device processing module is further configured to:
inputting the M information sequences into the code interleaver by using an interleaving coding algorithm to perform interleaving matrix processing to obtain an MXN interleaving coding matrix;
and performing interleaving coding processing on the M multiplied by N interleaving coding matrix according to a mode of writing in by rows and reading out by columns to obtain a baseband signal d (t), wherein M is the number of rows and N is the number of columns.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104393893A (en) * | 2014-11-25 | 2015-03-04 | 中国航天科技集团公司第五研究院第五一三研究所 | Frequency hopping communication system based on cognitive radio |
| CN106646540A (en) * | 2016-12-23 | 2017-05-10 | 上海创远仪器技术股份有限公司 | Integrated desk-type signal simulation platform for satellite navigation anti-interference test, and application method for integrated desk-type signal simulation platform |
| CN108988981A (en) * | 2017-06-02 | 2018-12-11 | 罗德施瓦兹两合股份有限公司 | Jamming equipment and interference method |
| CN109039538A (en) * | 2018-08-01 | 2018-12-18 | 北京理工大学 | A kind of prime codes race joint deinterleaving method for the fast frequency hopping system that is concerned with |
| CN109818718A (en) * | 2019-03-29 | 2019-05-28 | 河南九乾电子科技有限公司 | Joint interlacing system for data link communications system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532663B (en) * | 2013-09-12 | 2016-06-22 | 北京理工大学 | A kind of frequency hopping fountain code system and transmission method thereof |
-
2020
- 2020-07-21 CN CN202010704801.1A patent/CN111934714B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104393893A (en) * | 2014-11-25 | 2015-03-04 | 中国航天科技集团公司第五研究院第五一三研究所 | Frequency hopping communication system based on cognitive radio |
| CN106646540A (en) * | 2016-12-23 | 2017-05-10 | 上海创远仪器技术股份有限公司 | Integrated desk-type signal simulation platform for satellite navigation anti-interference test, and application method for integrated desk-type signal simulation platform |
| CN108988981A (en) * | 2017-06-02 | 2018-12-11 | 罗德施瓦兹两合股份有限公司 | Jamming equipment and interference method |
| CN109039538A (en) * | 2018-08-01 | 2018-12-18 | 北京理工大学 | A kind of prime codes race joint deinterleaving method for the fast frequency hopping system that is concerned with |
| CN109818718A (en) * | 2019-03-29 | 2019-05-28 | 河南九乾电子科技有限公司 | Joint interlacing system for data link communications system |
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Application publication date: 20201113 Assignee: Guangxi Great Wall Broadband Network Service Co.,Ltd. Assignor: GUILIN University OF TECHNOLOGY Contract record no.: X2022450000522 Denomination of invention: An anti-interference communication method and device Granted publication date: 20220412 License type: Common License Record date: 20221229 |