CN115865128B - Anti-interference method and system applied to wireless communication - Google Patents
Anti-interference method and system applied to wireless communication Download PDFInfo
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Abstract
The disclosure provides an anti-interference method and system applied to wireless communication, and relates to the technical field of wireless communication, wherein the method comprises the following steps: acquiring a first signal set to be transmitted; determining a signal transmission channel, a signal transmission source and a signal reception source of the first signal set to be transmitted; obtaining first anti-interference performance; acquiring a preset security level of the first signal set to be transmitted; judging whether an anti-interference processing model is activated, and if the anti-interference processing model is activated, inputting the first signal set to be transmitted into the anti-interference processing model; performing template spread spectrum processing on the first signal set to be transmitted, and outputting a spread spectrum signal set; the spread spectrum signal set is sent to the signal receiving source for signal reduction processing, so that the technical problems of poor anti-interference effect and low signal quality of wireless communication caused by the adoption of a one-time transmission and one-time decoding reduction method in the prior art are solved.
Description
Technical Field
The disclosure relates to the technical field of wireless communication, in particular to an anti-interference method and system applied to wireless communication.
Background
With the development of wireless communication technology, the application range is increased, the application effect is also increasingly remarkable, but the wireless communication quality is easily affected by a plurality of factors such as environment, natural factors and the like, and the signal quality of the wireless communication is affected. Since the advent of a communication system such as wireless communication, it can be said that communication interference resistance is a problem.
At present, the prior art has the technical problems that the anti-interference effect is poor and the signal quality of wireless communication is low because the methods of one-time transmission and one-time decoding reduction are adopted.
Disclosure of Invention
The disclosure provides an anti-interference method and system applied to wireless communication, which are used for solving the technical problems of poor anti-interference effect and low signal quality of wireless communication in the prior art due to the adoption of a method of one-time transmission and one-time decoding reduction.
According to a first aspect of the present disclosure, there is provided an anti-interference method applied to wireless communication, including: acquiring a first signal set to be transmitted; determining a signal transmission channel, a signal transmission source and a signal reception source of the first signal set to be transmitted based on the signal transceiving device; analyzing the signal transmission channel, the signal sending source and the signal receiving source to obtain first anti-interference performance; acquiring a preset security level of the first signal set to be transmitted; analyzing the first anti-interference performance based on the preset security level, judging whether an anti-interference processing model is activated, and inputting the first signal set to be transmitted into the anti-interference processing model if the anti-interference processing model is activated; performing template spread spectrum processing on the first signal set to be transmitted according to the anti-interference processing model, and outputting a spread spectrum signal set; and transmitting the spread spectrum signal set to the signal receiving source, and performing signal restoration processing based on the signal receiving source.
According to a second aspect of the present disclosure, there is provided an interference-free system applied to wireless communication, comprising: the signal to be transmitted acquisition module is used for acquiring a first signal set to be transmitted; the signal transmission analysis module is used for determining a signal transmission channel, a signal transmission source and a signal reception source of the first signal set to be transmitted based on the signal receiving and transmitting device; the anti-interference acquisition module is used for analyzing the signal transmission channel, the signal sending source and the signal receiving source to obtain first anti-interference; the security level acquisition module is used for acquiring a preset security level of the first signal set to be transmitted; the anti-interference processing model activation module is used for analyzing the first anti-interference performance based on the preset security level, judging whether to activate an anti-interference processing model, and inputting the first signal set to be transmitted into the anti-interference processing model if the anti-interference processing model is activated; the spread spectrum processing module is used for carrying out template spread spectrum processing on the first signal set to be transmitted according to the anti-interference processing model and outputting a spread spectrum signal set; and the signal reduction processing module is used for transmitting the spread spectrum signal set to the signal receiving source and carrying out signal reduction processing based on the signal receiving source.
According to an anti-interference method applied to wireless communication, a first signal set to be transmitted is obtained; determining a signal transmission channel, a signal transmission source and a signal reception source of the first signal set to be transmitted based on the signal transceiving device; analyzing the signal transmission channel, the signal sending source and the signal receiving source to obtain first anti-interference performance; acquiring a preset security level of the first signal set to be transmitted; analyzing the first anti-interference performance based on the preset security level, judging whether an anti-interference processing model is activated, and inputting the first signal set to be transmitted into the anti-interference processing model if the anti-interference processing model is activated; performing template spread spectrum processing on the first signal set to be transmitted according to the anti-interference processing model, and outputting a spread spectrum signal set; and transmitting the spread spectrum signal set to the signal receiving source, and performing signal restoration processing based on the signal receiving source. According to the method and the device, the anti-interference analysis is carried out on the signal to be sent, whether the anti-interference treatment is needed or not is determined based on the preset security level, the frequency modulation spread spectrum technology and the direct sequence spread spectrum technology are adopted in the anti-interference treatment to carry out the spread spectrum treatment on the signal to be sent, the demodulation and the reduction are carried out on the signal receiving source, the anti-interference performance is improved, and meanwhile the technical effect of improving the communication quality of wireless communication is achieved.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the disclosure, nor is it intended to be used to limit the scope of the disclosure. Other features of the present disclosure will become apparent from the following specification.
Drawings
For a clearer description of the present disclosure or of the prior art, the drawings that are required to be used in the description of the embodiments or of the prior art will be briefly described, it being apparent that the drawings in the description below are merely illustrative and that other drawings may be obtained, without inventive effort, by a person skilled in the art from the drawings provided.
Fig. 1 is a schematic flow chart of an anti-interference method applied to wireless communication according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of spreading processing by an anti-interference processing model in an embodiment of the present invention;
fig. 3 is a schematic flow chart of demodulation and reduction of a spread spectrum signal set in the embodiment of the invention;
fig. 4 is a schematic structural diagram of an anti-interference system applied to wireless communication according to an embodiment of the present invention.
Reference numerals illustrate: the system comprises a signal acquisition module 11 to be transmitted, a signal transmission analysis module 12, an anti-interference acquisition module 13, a security level acquisition module 14, an anti-interference processing model activation module 15, a spread spectrum processing module 16 and a signal reduction processing module 17.
Detailed Description
Exemplary embodiments of the present disclosure are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present disclosure to facilitate understanding, and should be considered as merely exemplary. Accordingly, one of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present disclosure. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
In order to solve the technical problems of poor anti-interference effect and low signal quality of wireless communication due to the adoption of the methods of one-time transmission and one-time decoding reduction in the prior art, the inventor of the present disclosure obtains the anti-interference method and the system applied to the wireless communication through creative labor.
Example 1
Fig. 1 is a diagram of an anti-interference method applied to wireless communication, where the method is applied to a communication anti-interference system, and the system is communicatively connected to a signal transceiver, as shown in fig. 1, and the method includes:
step S100: acquiring a first signal set to be transmitted;
specifically, the first signal set to be transmitted includes all radio signals to be transmitted, specifically including electromagnetic wave signals, microwave signals, and the like, that is, information to be transmitted may be sound information, image information, text information, and the like, and these information are converted into radio signals, thereby obtaining the first signal set to be transmitted.
Step S200: determining a signal transmission channel, a signal transmission source and a signal reception source of the first signal set to be transmitted based on the signal transceiving device;
specifically, the signal transceiver is a device for transmitting and receiving signals, and is responsible for transmitting signals to be transmitted to and receiving transmitted signals from a receiving end, and the signal transceiver is in communication connection with the communication anti-interference system, so that interactive transmission of data is realized. The signal transmission channel refers to a path between a transmitting end and a receiving end, for radio waves, there is no physical connection between the transmitting end and the receiving end, and there may be more than one propagation path, in short, there is a connection between the two paths, which is called a signal transmission channel, the signal transmission source refers to a signal transmission device, the signal receiving source refers to a device for receiving a transmission signal, for example, a and B for performing telephone communication, if a speaks to B, the communication device of a is referred to as a signal transmission source, the communication device of B is referred to as a signal receiving source, the sound signal is converted into a radio signal, and the transmission path of the radio signal in air is referred to as a signal transmission channel.
Step S300: analyzing the signal transmission channel, the signal sending source and the signal receiving source to obtain first anti-interference performance;
the step S300 in this embodiment of the present application further includes:
step S310: analyzing the signal transmission channel, the signal sending source and the signal receiving source to obtain transmission safety, sending safety and receiving safety;
step S320: evaluating the transmission security, the sending security and the receiving security, and outputting a first security coefficient;
step S330: and generating the first anti-interference performance by using the first safety coefficient.
Specifically, the signal transmission channel, the signal transmission source and the signal receiving source are analyzed to obtain first anti-interference performance, interference refers to damage caused to a signal, anti-interference performance means that damage to the signal is resisted, reduced or eliminated as far as possible, specifically, a radio signal is possibly damaged in the sending, transmitting and receiving processes, the more serious the damage to the signal is possibly damaged in the sending, transmitting and receiving processes, the more serious the damage is, the need of anti-interference to the wireless communication process is described, so that the damage to the signal is reduced, and the first anti-interference performance means whether the anti-interference is needed or not, so that the loss of the signal is reduced.
Specifically, the signal transmission channel is analyzed to obtain transmission safety, the transmission safety refers to damage possibly caused by the signal during transmission, the propagation medium of the wireless signal is air, and the uncertainty of the propagation environment can seriously affect the signal quality, even can cause invalid signal transmission results, such as attenuation of the signal during the propagation process, interference of other noise, and the like, such as noise generated during the call. Then, the signal transmitting source is analyzed, damage to the signal caused by the wireless signal during transmission is analyzed, the transmission safety is obtained, then the signal receiving source is analyzed, damage to the signal caused by the signal receiving end is analyzed, and the receiving safety is obtained, such as interference to the transmission and the receiving of the signal caused by similar equipment around. The wireless signal transmission method based on the wireless signal detection is further combined with transmission safety, transmission safety and reception safety to evaluate, a first safety coefficient is output, the first safety coefficient represents the damage degree possibly generated in the whole transmission, transmission and reception processes of the wireless signal, the larger the damage of the wireless signal in the transmission, transmission and reception processes is, the lower the first safety coefficient is, the first anti-interference performance is generated by the first safety coefficient, the lower the first safety coefficient is, the larger the damage of the wireless signal is, the higher the corresponding first anti-interference performance is, the accurate analysis of the loss of the wireless signal is achieved, and the technical effect of providing basic data for subsequent anti-interference is achieved.
Step S400: acquiring a preset security level of the first signal set to be transmitted;
specifically, the preset security level is determined according to the purpose of the first signal set to be transmitted, for example, daily communication (including calling, sending information and the like) of ordinary people may not need security, the preset security level is lower, the preset security level corresponding to communication of enterprise technicians is higher, the preset security level corresponding to communication for the military field is higher, the quality requirement on a received signal is higher, the damage to the required signal is reduced to the minimum, and the preset security level of the first signal set to be transmitted is obtained based on the fact that the preset security level corresponding to communication of the enterprise technicians is higher.
Step S500: analyzing the first anti-interference performance based on the preset security level, judging whether an anti-interference processing model is activated, and inputting the first signal set to be transmitted into the anti-interference processing model if the anti-interference processing model is activated;
specifically, the first anti-interference performance is analyzed based on the preset security level, and whether the anti-interference processing model is activated is judged, that is, whether the first anti-interference performance is matched with the preset security level is judged, if the first anti-interference performance is matched with the preset security level, the anti-interference processing model does not need to be activated, for example, part of noise or discontinuous sound is generated when ordinary people make a call in daily telephone communication, but the preset security level corresponding to the ordinary daily communication is lower, and at the moment, the anti-interference processing model does not need to be activated; if the preset security level corresponding to the communication of the enterprise technician is higher, if the damage to the signal is larger, the anti-interference processing model needs to be activated, so that the communication quality is ensured, the anti-interference cost is reduced, and the resource waste is avoided. If the anti-interference processing model is activated, the first signal set to be transmitted is input into the anti-interference processing model, and the anti-interference processing model performs spread spectrum processing on the first signal set to be transmitted.
Step S600: performing template spread spectrum processing on the first signal set to be transmitted according to the anti-interference processing model, and outputting a spread spectrum signal set;
as shown in fig. 2, step S600 in the embodiment of the present application further includes:
step S610: building the anti-interference processing model, wherein the anti-interference processing model comprises a signal spread spectrum template, and the signal spread spectrum template comprises a first spread spectrum sub-template and a second spread spectrum sub-template;
step S620: inputting the first signal set to be transmitted into the first spread spectrum sub-module for signal spreading, and outputting a primary spread spectrum signal set;
step S630: performing signal expansion on the primary spread spectrum signal set according to the second spread spectrum sub-template, and outputting a secondary spread spectrum signal set;
step S640: and taking the secondary spread spectrum signal set as the output of the anti-interference processing model.
The step S620 in this embodiment of the present application further includes:
step S621: acquiring signal time sequence information of the first signal set to be transmitted;
step S622: intercepting a time sequence signal according to the signal time sequence information to obtain a first time sequence signal segment;
step S623: and processing the first time sequence signal segment according to the spreading code of the first spreading sub-template, and outputting the primary spreading signal set.
Wherein, signal expansion is performed on the primary spread spectrum signal set according to the second spread spectrum sub-template, and a secondary spread spectrum signal set is output, and step S630 in this embodiment of the present application further includes:
step S631: acquiring the frequency bandwidth of the primary spread spectrum signal set;
step S632: and inputting the frequency bandwidth of the primary spread spectrum signal set and the primary spread spectrum signal set into the second spread spectrum sub-template, performing spread spectrum code matching and signal processing according to the second spread spectrum sub-template, and outputting the secondary spread spectrum signal set.
Specifically, the first signal set to be transmitted is subjected to template spread spectrum processing according to the anti-interference processing model, a spread spectrum signal set is output, and the bandwidth used for transmitting the signal is far greater than the bandwidth of the signal itself. The spread spectrum communication technology uses spread spectrum coding to carry out spread spectrum modulation at the transmitting end, and uses relevant demodulation technology to receive information at the receiving end, the spread of the frequency band is completed by an independent spread spectrum code sequence, the spread spectrum signal set is the first signal set to be transmitted after spread spectrum modulation by using a coding and modulation method.
Specifically, firstly, an anti-interference processing model is built, wherein the anti-interference processing model comprises a signal spread spectrum template, the signal spread spectrum template comprises a first spread spectrum sub-template and a second spread spectrum sub-template, the first spread spectrum sub-template is a template for spreading a signal to be transmitted through a time hopping spread spectrum technology, the time hopping is to start and stop the transmission time and duration of the signal by using a pseudo code sequence, and the existence and non-existence of the transmitted signal are pseudo-random as the pseudo code sequence. In this way, the transmission time is divided into time periods of frames, the time period of each frame is subdivided into time slots, one time slot modulates one message in each frame, all information bits of the frame are transmitted in an accumulated manner, a first signal set to be transmitted is input into a first spreading sub-module for signal spreading based on the information bits, a primary spreading signal set is output, and the first signal set to be transmitted is subjected to time-hopping spreading to obtain the primary spreading signal set.
The second spreading sub-template refers to a template for performing secondary spreading on the primary spreading signal set through a direct-sequence spreading technology, the direct-sequence spreading is a process of directly using a spreading code sequence with a high code rate to despread the frequency spectrum of a signal, specifically, modulo 2 addition or waveform multiplication, and based on the process, the signal spreading is performed on the primary spreading signal set according to the second spreading sub-template, so as to obtain the secondary spreading signal set, and the secondary spreading signal set is used as the output of the anti-interference processing model. That is, the input of the anti-interference processing model is a first signal set to be transmitted, the first spreading sub-template and the second spreading sub-template are two network layers embedded in the anti-interference processing model, the first signal set to be transmitted firstly carries out first spreading processing through the first spreading sub-template to output a first spreading signal set, and then the first spreading signal set carries out second spreading processing through the second spreading sub-template to output a second spreading signal set, so that the technical effects of improving the anti-interference performance and improving the signal transmission quality are achieved.
Specifically, signal timing information of the first set of signals to be transmitted is obtained, the signal timing information refers to signals taking a horizontal axis as time, time sequence signal interception is performed according to the signal timing information, that is, signals in any time domain are intercepted according to time domain characteristics of the signals, so that the intercepted signals are taken as first time sequence signal segments, the first time sequence signal segments are further processed according to a spreading code of a first spreading sub-template, the first spreading sub-template performs spreading processing on the first time sequence signal segments based on a time hopping spreading technology, in short, time hopping spreading is to divide transmission time into time segments of frames, the time segments of each frame are subdivided into time slots, one time slot modulates one piece of information in each frame, and which time slot in one frame transmits signals is controlled by a spreading code sequence. Therefore, it can be understood that the time shift keying of multiple time slots is performed by using a pseudo-random code sequence, wherein the pseudo-random code sequence is a spreading code, and the first spreading is completed based on the pseudo-random code sequence, so as to obtain a first spreading signal set, and achieve the effect of reducing the duty ratio of the working time.
Specifically, the frequency bandwidth of the primary spread spectrum signal set is obtained, the frequency bandwidth of the primary spread spectrum signal set and the primary spread spectrum signal set are input into a second spread spectrum sub-template, and the second spread spectrum sub-template performs spread spectrum code matching and signal processing on the primary spread spectrum signal set according to the frequency bandwidth of the primary spread spectrum signal set, so that the secondary spread spectrum signal set is output. A signal that is limited in time has an infinite frequency spectrum, such as a very narrow pulse signal, a very wide frequency spectrum, and a bandwidth of the signal approximately inversely proportional to its duration. The bandwidth of the 1 microsecond pulse is about 1MHz. Thus, if a set of spread spectrum signals is modulated with a narrow sequence of pulses, a very broad frequency band signal is produced, which is a spreading code. That is, the second spreading sub-template includes a plurality of spreading code sequences with different bandwidths, and the direct sequence spreading processing is performed according to the frequency bandwidth of the primary spreading signal set and matching with a proper spreading code sequence, and it should be noted that the adopted spreading code sequence is irrelevant to the transmitted signal, that is, it is the same as a general sine carrier signal, the transparency of information transmission is not affected at all, and the spreading code only plays a role of spreading the signal spectrum.
Step S700: and transmitting the spread spectrum signal set to the signal receiving source, and performing signal restoration processing based on the signal receiving source.
As shown in fig. 3, step S700 in the embodiment of the present application further includes:
step S710: outputting a first demodulation code according to the spread spectrum code of the first spread spectrum sub-template;
step S720: outputting a second demodulation code according to the spreading code of the second spreading sub-template;
step S730: and sending the first demodulation code and the second demodulation code to the signal receiving source, and demodulating and restoring the spread spectrum signal set by the signal receiving source to obtain a restored signal set.
Specifically, the spread spectrum signal set is sent to the signal receiving source, and the signal receiving source receives the spread spectrum signal set and then performs signal recovery processing, that is, the spread spectrum signal set output after the spread spectrum processing is processed to obtain an original wireless signal, the spread spectrum signal set needs to be demodulated at the signal receiving source to recover the transmitted signal, and in spread spectrum communication, the signal receiving source adopts the same spread spectrum code sequence as that used in the spread spectrum processing and the received spread spectrum signal set to demodulate and recover the transmitted signal, in other words, the signal after the spread is recovered to the original transmitted signal.
Specifically, the signal receiving source demodulates the received spread spectrum signal set by using the same spread spectrum code sequence as that in the spread spectrum processing, and recovers the transmitted signal, based on this, according to the spread spectrum code of the first spread spectrum sub-template, the first demodulation code is output, the first demodulation code is identical to the spread spectrum code of the first spread spectrum sub-template, according to the spread spectrum code of the second spread spectrum sub-template, the second demodulation code is output, the second demodulation code is identical to the spread spectrum code of the second spread spectrum sub-template, the first demodulation code and the second demodulation code are further transmitted to the signal receiving source, the spread spectrum signal set is demodulated by the signal receiving source, and the recovered signal set is obtained, specifically, the signal receiving source firstly demodulates and recovers the spread spectrum signal set according to the second demodulation code, this time demodulates the direct sequence spread spectrum, and processes by adopting a correlation demodulation method, the correlation demodulation processing is to multiply the two signals, that is to multiply the demodulation code and the received signal, then the mathematical expectation (mean value) is obtained, or the integral of the demodulation of the multiplication of the two signals is obtained, then the first demodulation code is recovered by the first demodulation code, the recovered signal is recovered by the first time, and the recovered signal is recovered by the recovery method, and the recovery method is carried out again, and the recovery is carried out by adopting the normal method.
The step S800 in this embodiment of the present application further includes:
step S810: acquiring a test signal set, and performing anti-interference test based on the test signal set to obtain an original sample signal and a test sample signal;
step S820: performing loss analysis on the original sample signal and the test sample signal to obtain a first loss coefficient;
step S830: and generating first early warning information according to the first loss coefficient.
Specifically, the method is adopted to complete the construction of the communication anti-interference system, the anti-interference performance of the communication anti-interference system is required to be tested, based on the test signal set, the test signal set contains wireless communication signals used for anti-interference testing, the anti-interference testing is carried out based on the test signal set, in brief, the test signal set is input into the communication anti-interference system to carry out transmission of the test signal set, the communication anti-interference system adopts the anti-interference method provided by the embodiment to carry out anti-interference processing on the test signal set, the original sample signal is the test signal set before signal transmission, the test sample signal is the reduction signal obtained by carrying out anti-interference processing on the test signal set, the original sample signal and the test sample signal are further compared and analyzed, the loss degree generated by the original sample signal in the transmission process is determined, the loss degree is used as a first loss coefficient, for example, if the first loss coefficient is smaller, the anti-interference performance is better, if the first loss coefficient is better, the anti-interference performance is better, the working model is better, such as being generated, and the anti-interference performance is better, the alert performance is better, and the alert performance is achieved.
Based on the above analysis, the disclosure provides an anti-interference method applied to wireless communication, in this embodiment, by performing anti-interference analysis on a signal to be transmitted, determining whether anti-interference processing is needed based on a preset security level, performing spread spectrum processing on the signal to be transmitted by adopting two spread spectrum technologies of frequency modulation spread spectrum and direct sequence spread spectrum in the anti-interference processing, and performing demodulation and reduction on a signal receiving source, so as to achieve the technical effects of improving the anti-interference performance and improving the communication quality of wireless communication.
Example two
Based on the same inventive concept as the anti-interference method applied to wireless communication in the foregoing embodiments, as shown in fig. 4, the present application further provides an anti-interference system applied to wireless communication, where the system is communicatively connected to a signal transceiver, and the system includes:
a signal to be sent obtaining module 11, where the signal to be sent obtaining module 11 is configured to obtain a first signal set to be sent;
a signal transmission analysis module 12, where the signal transmission analysis module 12 is configured to determine, based on the signal transceiver, a signal transmission channel, a signal transmission source, and a signal reception source of the first signal set to be transmitted;
the anti-interference acquisition module 13 is used for analyzing the signal transmission channel, the signal sending source and the signal receiving source to obtain first anti-interference;
a security level obtaining module 14, where the security level obtaining module 14 is configured to obtain a preset security level of the first signal set to be sent;
the anti-interference processing model activation module 15, where the anti-interference processing model activation module 15 is configured to analyze the first anti-interference performance based on the preset security level, determine whether to activate an anti-interference processing model, and if the anti-interference processing model is activated, input the first signal set to be sent into the anti-interference processing model;
the spread spectrum processing module 16, the spread spectrum processing module 16 is configured to perform template spread spectrum processing on the first signal set to be transmitted according to the anti-interference processing model, and output a spread spectrum signal set;
and the signal reduction processing module 17 is used for sending the spread spectrum signal set to the signal receiving source, and performing signal reduction processing based on the signal receiving source.
Further, the system further comprises:
the anti-interference processing model building module is used for building the anti-interference processing model, wherein the anti-interference processing model comprises a signal spread spectrum template, and the signal spread spectrum template comprises a first spread spectrum sub-template and a second spread spectrum sub-template;
the first signal expansion module is used for inputting the first signal set to be transmitted into the first spread spectrum sub-module for signal expansion and outputting a primary spread spectrum signal set;
the second signal expansion module is used for carrying out signal expansion on the primary spread spectrum signal set according to the second spread spectrum sub-template and outputting a secondary spread spectrum signal set;
and the output determining module is used for taking the secondary spread spectrum signal set as the output of the anti-interference processing model.
Further, the system further comprises:
the signal time sequence information acquisition module is used for acquiring signal time sequence information of the first signal set to be transmitted;
the time sequence signal interception module is used for intercepting time sequence signals according to the signal time sequence information to obtain a first time sequence signal segment;
and the primary spread spectrum signal set output module is used for processing the first time sequence signal segment according to the spread spectrum code of the first spread spectrum sub-template and outputting the primary spread spectrum signal set.
Further, the system further comprises:
the frequency bandwidth acquisition module is used for acquiring the frequency bandwidth of the primary spread spectrum signal set;
the secondary spread spectrum signal set output module is used for inputting the frequency bandwidth of the primary spread spectrum signal set and the primary spread spectrum signal set into the second spread spectrum sub-template, performing spread spectrum code matching and signal processing according to the second spread spectrum sub-template, and outputting the secondary spread spectrum signal set.
Further, the system further comprises:
the first demodulation code acquisition module is used for outputting a first demodulation code according to the spread spectrum code of the first spread spectrum sub-template;
the second demodulation code acquisition module is used for outputting a second demodulation code according to the spread spectrum code of the second spread spectrum sub-template;
and the demodulation and restoration module is used for transmitting the first demodulation code and the second demodulation code to the signal receiving source, and the signal receiving source demodulates and restores the spread spectrum signal set to obtain a restored signal set.
Further, the system further comprises:
the safety analysis module is used for analyzing the signal transmission channel, the signal sending source and the signal receiving source to obtain transmission safety, sending safety and receiving safety;
the safety evaluation module is used for evaluating the transmission safety, the sending safety and the receiving safety and outputting a first safety coefficient;
the first anti-interference generating module is used for generating the first anti-interference according to the first safety coefficient.
Further, the system further comprises:
the sample signal acquisition module is used for acquiring a test signal set, and performing anti-interference test based on the test signal set to obtain an original sample signal and a test sample signal;
the loss analysis module is used for carrying out loss analysis on the original sample signal and the test sample signal to obtain a first loss coefficient;
the first early warning information generation module is used for generating first early warning information according to the first loss coefficient.
A specific example of an anti-interference method applied to wireless communication in the foregoing embodiment is also applicable to an anti-interference system applied to wireless communication in this embodiment, and it will be apparent to those skilled in the art from the foregoing detailed description of an anti-interference method applied to wireless communication that the anti-interference system applied to wireless communication in this embodiment is omitted herein for brevity. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps recited in the present disclosure may be performed in parallel, sequentially, or in a different order, provided that the desired results of the technical solutions of the present disclosure are achieved, and are not limited herein.
The above detailed description should not be taken as limiting the scope of the present disclosure. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present disclosure are intended to be included within the scope of the present disclosure.
Claims (8)
1. An anti-interference method for wireless communication, wherein the method is applied to a communication anti-interference system, the system is in communication connection with a signal transceiver, and the method comprises:
acquiring a first signal set to be transmitted;
determining a signal transmission channel, a signal transmission source and a signal reception source of the first signal set to be transmitted based on the signal transceiving device;
analyzing the signal transmission channel, the signal sending source and the signal receiving source to obtain first anti-interference performance;
acquiring a preset security level of the first signal set to be transmitted;
analyzing the first anti-interference performance based on the preset security level, judging whether an anti-interference processing model is activated, and inputting the first signal set to be transmitted into the anti-interference processing model if the anti-interference processing model is activated;
performing template spread spectrum processing on the first signal set to be transmitted according to the anti-interference processing model, and outputting a spread spectrum signal set;
and transmitting the spread spectrum signal set to the signal receiving source, and performing signal restoration processing based on the signal receiving source.
2. The method of claim 1, wherein the method further comprises:
building the anti-interference processing model, wherein the anti-interference processing model comprises a signal spread spectrum template, and the signal spread spectrum template comprises a first spread spectrum sub-template and a second spread spectrum sub-template;
inputting the first signal set to be transmitted into the first spread spectrum sub-module for signal spreading, and outputting a primary spread spectrum signal set;
performing signal expansion on the primary spread spectrum signal set according to the second spread spectrum sub-template, and outputting a secondary spread spectrum signal set;
and taking the secondary spread spectrum signal set as the output of the anti-interference processing model.
3. The method of claim 2 wherein inputting the first set of signals to be transmitted to the first spreading sub-module for signal spreading and outputting a set of spread spectrum signals, the method comprising:
acquiring signal time sequence information of the first signal set to be transmitted;
intercepting a time sequence signal according to the signal time sequence information to obtain a first time sequence signal segment;
and processing the first time sequence signal segment according to the spreading code of the first spreading sub-template, and outputting the primary spreading signal set.
4. The method of claim 3 wherein signal spreading is performed on the set of primary spread signals in accordance with the second spreader template to output a set of secondary spread signals, the method comprising:
acquiring the frequency bandwidth of the primary spread spectrum signal set;
and inputting the frequency bandwidth of the primary spread spectrum signal set and the primary spread spectrum signal set into the second spread spectrum sub-template, performing spread spectrum code matching and signal processing according to the second spread spectrum sub-template, and outputting the secondary spread spectrum signal set.
5. The method of claim 4, wherein signal recovery processing is performed based on the signal receiving source, the method comprising:
outputting a first demodulation code according to the spread spectrum code of the first spread spectrum sub-template;
outputting a second demodulation code according to the spreading code of the second spreading sub-template;
and sending the first demodulation code and the second demodulation code to the signal receiving source, and demodulating and restoring the spread spectrum signal set by the signal receiving source to obtain a restored signal set.
6. The method of claim 1, wherein analyzing the signal transmission path, the signal transmission source, and the signal reception source results in a first interference immunity, the method comprising:
analyzing the signal transmission channel, the signal sending source and the signal receiving source to obtain transmission safety, sending safety and receiving safety;
evaluating the transmission security, the sending security and the receiving security, and outputting a first security coefficient;
and generating the first anti-interference performance by using the first safety coefficient.
7. The method of claim 5, wherein the method further comprises:
acquiring a test signal set, and performing anti-interference test based on the test signal set to obtain an original sample signal and a test sample signal;
performing loss analysis on the original sample signal and the test sample signal to obtain a first loss coefficient;
and generating first early warning information according to the first loss coefficient.
8. An anti-interference system for wireless communication, said system being communicatively coupled to a signal transceiver, said system comprising:
the signal to be transmitted acquisition module is used for acquiring a first signal set to be transmitted;
the signal transmission analysis module is used for determining a signal transmission channel, a signal transmission source and a signal reception source of the first signal set to be transmitted based on the signal receiving and transmitting device;
the anti-interference acquisition module is used for analyzing the signal transmission channel, the signal sending source and the signal receiving source to obtain first anti-interference;
the security level acquisition module is used for acquiring a preset security level of the first signal set to be transmitted;
the anti-interference processing model activation module is used for analyzing the first anti-interference performance based on the preset security level, judging whether to activate an anti-interference processing model, and inputting the first signal set to be transmitted into the anti-interference processing model if the anti-interference processing model is activated;
the spread spectrum processing module is used for carrying out template spread spectrum processing on the first signal set to be transmitted according to the anti-interference processing model and outputting a spread spectrum signal set;
and the signal reduction processing module is used for transmitting the spread spectrum signal set to the signal receiving source and carrying out signal reduction processing based on the signal receiving source.
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| CN108377158A (en) * | 2018-02-13 | 2018-08-07 | 桂林电子科技大学 | It is a kind of realizing spread-spectrum signal multiband segmentation and polymerization |
| CN113904771A (en) * | 2021-09-18 | 2022-01-07 | 山东北方滨海机器有限公司 | Two-dimensional information security anti-interference communication method and system based on pseudorandom sequence set |
| CN114095056A (en) * | 2021-11-04 | 2022-02-25 | 深圳供电局有限公司 | Data transmission method, device, equipment and storage medium |
| CN114337907A (en) * | 2022-01-05 | 2022-04-12 | 四川九洲空管科技有限责任公司 | ADS-B anti-interference receiving processing method and receiving processing system |
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| CN108377158A (en) * | 2018-02-13 | 2018-08-07 | 桂林电子科技大学 | It is a kind of realizing spread-spectrum signal multiband segmentation and polymerization |
| CN113904771A (en) * | 2021-09-18 | 2022-01-07 | 山东北方滨海机器有限公司 | Two-dimensional information security anti-interference communication method and system based on pseudorandom sequence set |
| CN114095056A (en) * | 2021-11-04 | 2022-02-25 | 深圳供电局有限公司 | Data transmission method, device, equipment and storage medium |
| CN114337907A (en) * | 2022-01-05 | 2022-04-12 | 四川九洲空管科技有限责任公司 | ADS-B anti-interference receiving processing method and receiving processing system |
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