CN114598337B - Anti-interference method for zero intermediate frequency terminal, terminal and storage medium - Google Patents
Anti-interference method for zero intermediate frequency terminal, terminal and storage medium Download PDFInfo
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- CN114598337B CN114598337B CN202011411770.7A CN202011411770A CN114598337B CN 114598337 B CN114598337 B CN 114598337B CN 202011411770 A CN202011411770 A CN 202011411770A CN 114598337 B CN114598337 B CN 114598337B
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- 238000001514 detection method Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 3
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- 238000004590 computer program Methods 0.000 description 6
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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
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
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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
- H04B1/06—Receivers
- H04B1/16—Circuits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application discloses an anti-interference method of a zero intermediate frequency terminal, the terminal and a storage medium, wherein the method comprises the following steps: judging whether the intensity of the received radio frequency signal is larger than a first preset threshold value or not; if yes, carrying out intensity reduction treatment on the radio frequency signals; acquiring the signal error rate of the processed radio frequency signal, and judging whether the signal error rate is larger than a second preset threshold value; if yes, adjusting the power of the anti-interference element to perform anti-interference treatment on the processed radio frequency signal. By the method, the anti-interference performance of the terminal can be improved.
Description
Technical Field
The present application relates to the field of communications, and in particular, to an anti-interference method for a zero intermediate frequency terminal, a terminal, and a storage medium.
Background
The zero intermediate frequency receiving technology, i.e. the received radio frequency signal does not need to be converted to an intermediate frequency, but is once directly converted to an analog baseband In-phase/Quadrature (I/Q) signal, and then demodulated. The terminal adopting the zero intermediate frequency receiving technology is called as the zero intermediate frequency terminal for short, and an intermediate frequency filter, an intermediate frequency amplifying circuit and the like in the traditional superheterodyne receiver can be omitted, so that the zero intermediate frequency terminal has great advantages in terms of cost and volume.
At present, the zero intermediate frequency terminal is not ideal in the aspect of anti-interference performance, so that the zero intermediate frequency terminal can more easily generate the phenomenon of communication blocking interference, and further application of the zero intermediate frequency terminal is greatly limited.
Therefore, how to improve the anti-interference performance of the zero intermediate frequency terminal has very important significance.
Disclosure of Invention
The application provides an anti-interference method of a zero intermediate frequency terminal, the terminal and a storage medium.
The first aspect of the present application provides an anti-interference method for a zero intermediate frequency terminal, which comprises: judging whether the intensity of the received radio frequency signal is larger than a first preset threshold value or not; if yes, carrying out intensity reduction treatment on the radio frequency signals; acquiring the signal error rate of the processed radio frequency signal, and judging whether the signal error rate is larger than a second preset threshold value; if yes, adjusting the power of the anti-interference element so as to perform anti-interference treatment on the processed radio frequency signal.
The second aspect of the application provides a zero intermediate frequency terminal, the device comprises a radio frequency receiving circuit, a signal adjusting circuit, a signal error rate detecting circuit and a signal processing circuit; the radio frequency receiving circuit is used for receiving radio frequency signals; the signal adjusting circuit is used for carrying out intensity reduction treatment on the received radio frequency signals; the signal error rate detection circuit is used for acquiring the signal error rate of the processed radio frequency signal and judging whether the signal error rate is larger than a second preset threshold value or not; and the signal processing circuit is used for receiving the control signal sent by the signal error rate detection circuit and adjusting the power of the anti-interference element under the condition that the signal error rate is larger than a second preset threshold value so as to perform anti-interference processing on the processed radio frequency signal.
A third aspect of the present application provides a terminal, which includes a memory and a processor coupled to each other, where the processor is configured to execute program instructions stored in the memory, so as to implement the anti-interference method of the zero intermediate frequency terminal described in the foregoing first aspect of the embodiment.
A fourth aspect of the present application provides a computer readable storage medium storing a computer program executable by a processor for implementing the anti-interference method of the zero intermediate frequency terminal described in the above first aspect embodiment.
Compared with the prior art, the application has the beneficial effects that: according to the application, the anti-interference performance is improved step by step according to the actual use environment of the terminal, the received radio frequency signal is subjected to intensity reduction treatment, the signal error rate is used as the basis for measuring the quality of the processed radio frequency signal, and the anti-interference treatment is performed by adjusting the power of the anti-interference element under the condition that the signal error rate is greater than a second preset threshold value, so that the anti-interference performance of the terminal can be further enhanced according to the actual condition of the signal error rate, and the anti-interference effect is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flow chart of a first embodiment of an anti-interference method of a zero intermediate frequency terminal of the present application;
fig. 2 is a flow chart of a second embodiment of an anti-interference method of a zero intermediate frequency terminal according to the present application
Fig. 3 is a schematic diagram of the framework of a first embodiment of the zero intermediate frequency terminal of the present application;
FIG. 4 is a schematic diagram of a frame of an electronic terminal of the present application;
FIG. 5 is a schematic diagram of a computer-readable storage device according to an embodiment of the application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1, fig. 1 is a flowchart of a first embodiment of an anti-interference method for a zero intermediate frequency terminal according to the present application.
Step S11: and judging whether the intensity of the received radio frequency signal is larger than a first preset threshold value.
A terminal applying zero intermediate frequency technology may be defined as a zero intermediate frequency terminal. The zero intermediate frequency terminal is a radio communication device such as a walkie-talkie, a mobile phone or the like.
For a zero intermediate frequency terminal (hereinafter referred to as a terminal), when the terminal is receiving a useful signal, if strong interference of adjacent frequencies (such as radio frequency signals sent by other terminals) also enters a high frequency amplifier or a mixer of a receiver, a saturation phenomenon occurs in the high frequency amplifier or the mixer stage, that is, the terminal is interfered, so that demodulation output noise of the terminal is increased, sensitivity is reduced, and when the terminal is serious, communication is interrupted. The strength of the radio frequency signal may be represented by a received signal strength indication (Received Signal Strength Indication, RSSI). For the terminal, a signal strength detection unit may be provided at the terminal to determine the strength of the radio frequency signal received by the terminal.
Therefore, the terminal can determine whether the anti-interference processing is required based on the strength of the received radio frequency signal and judge the strength of the signal.
The first preset threshold is, for example, -90dBm, for example, when the RSSI value of the radio frequency signal is greater than-90 dBm, the terminal may be considered to receive a stronger signal, and the terminal may perform anti-interference processing to improve the communication performance. The setting of the first preset threshold is not limited and can be adjusted according to actual conditions.
When the intensity of the radio frequency signal is greater than the first preset threshold, step S12 may be performed. Step S12: and performing intensity reduction processing on the received radio frequency signals.
The anti-interference performance of the terminal can be enhanced and the anti-interference effect of the terminal is improved by carrying out intensity reduction treatment on the radio frequency signals. In one embodiment, the processing of reducing the intensity of the radio frequency signal may specifically include performing attenuation processing on the received radio frequency signal and/or performing clipping processing on the received radio frequency signal. The received rf signal is attenuated, for example, by an attenuator, such as by reducing a 5 decibel milliwatt (dBm) signal to-5 dBm through a 10dB attenuator. The clipping process is performed on the rf signal, i.e. all instantaneous values of the rf signal strength exceeding a predetermined threshold are reduced to be close to the threshold, while all other instantaneous values are kept. For example, if the predetermined threshold value is 0dBm and the instantaneous value of the received rf signal strength is 5dBm at maximum, the signal strength of 5dBm or more can be reduced to 0dBm by the clipping process.
For the terminal, a signal strength adjusting unit may be provided at the terminal to adjust the strength of the radio frequency signal received by the terminal.
Step S13: and acquiring the signal error rate of the processed radio frequency signal, and judging whether the signal error rate is larger than a second preset threshold value.
After the intensity of the radio frequency signal is reduced, whether the anti-interference performance of the terminal meets the requirement can be measured through the signal error rate of the processed radio frequency signal. The signal error rate is used to indicate the accuracy of the data transmission, and the signal error rate is at least one of the bit error rate or the block error rate.
For example, the error rate of the processed radio frequency signal may be obtained, and it may be determined whether the error rate is greater than a second preset threshold. When the error rate is larger than a second preset threshold value, the anti-interference performance of the terminal can be considered to be still unsatisfied; and when the error rate is smaller than a second preset threshold value, the anti-interference performance of the terminal can be considered to meet the requirement. The second preset threshold is, for example, 1%,2%, etc., and the setting of the second preset threshold is not limited and can be adjusted according to practical situations.
In one embodiment, the signal error rate includes an average signal error rate over a predetermined time range, such as an average error rate or an average block error rate over the predetermined time range. In a specific implementation scenario, whether the anti-interference performance of the terminal meets the requirement can be measured by determining an average error rate in a preset time range. For example, the error rate of the terminal may be determined within 3 seconds, or the average error rate within 2 seconds. The average error rate in the preset time range is determined, so that the problem that the error rate is large due to other reasons (such as jitter of radio frequency signals) and further the interference resistance is required to be enhanced in the wrong judgment of the terminal is solved, the misjudgment of the terminal is reduced, and the reliability of the terminal in the interference resistance is improved.
In one embodiment, whether the anti-interference performance of the terminal meets the requirement may also be measured by judging the Block Error Rate (Block Error Rate) of the processed radio frequency signal. The preset threshold corresponding to the block error rate is, for example, 2%, and similarly, the setting of the second preset threshold regarding the block error rate is not limited and may be adjusted according to the actual situation.
When the signal error rate is larger than a second preset threshold, the current anti-interference performance of the terminal cannot meet the requirement, and at the moment, the anti-interference performance of the terminal can be continuously enhanced. For example, step S14 is performed.
Step S14: and adjusting the power of the anti-interference element to perform anti-interference treatment on the processed radio frequency signal.
When the anti-interference performance of the terminal needs to be further enhanced, the anti-interference performance can be realized by adjusting the power of the anti-interference element, specifically, the power of the anti-interference element can be increased, so that the anti-interference processing is performed on the radio frequency signal after the intensity is reduced. The method of increasing the power of the anti-interference element is, for example, to increase the current of the anti-interference element. An anti-tamper element is understood to be a circuit element that can affect the anti-tamper properties of the terminal, and may include, for example, a programmable gain amplifier and a frequency divider. Specifically, the current of one of the programmable gain amplifier and the frequency divider can be increased, or the current of the programmable gain amplifier and the frequency divider can be increased simultaneously. It will be appreciated that in the present application, the anti-interference element may have other functions besides enhancing the anti-interference performance of the terminal, for example, the programmable gain amplifier may perform gain control on the radio frequency signal.
Therefore, the scheme performs anti-interference treatment step by step, firstly performs intensity reduction treatment on the received radio frequency signal, and then performs anti-interference treatment by using the signal error rate as a basis for measuring the quality of the radio frequency signal after the intensity reduction treatment and adjusting the power of the anti-interference element under the condition that the signal error rate is larger than a second preset threshold value, so that the anti-interference performance of the terminal can be further enhanced according to the actual condition of the signal error rate, and the anti-interference effect is improved.
Referring to fig. 2, fig. 2 is a flowchart of a second embodiment of an anti-interference method of the zero intermediate frequency terminal of the present application. This embodiment is a further extension of the previous embodiment, and specifically may include the following steps:
step S21: and judging whether the intensity of the received radio frequency signal is larger than a first preset threshold value.
For a specific description of this step, please refer to the above step S11, and the description thereof is omitted here.
When the intensity of the radio frequency signal is not greater than the first preset threshold, step S22 may be performed; when the intensity of the radio frequency signal is greater than the first preset threshold, step S23 may be performed.
Step S22: the power of the anti-interference element is reduced.
When the strength of the radio frequency signal is smaller than the first preset threshold, the terminal can be considered to be receiving the weak signal, and anti-interference processing is not performed at the moment, so that the influence on the communication performance of the terminal due to the fact that the signal is too weak is reduced. At this time, the power of the anti-interference element may be reduced, specifically, the current of the anti-interference element may be reduced, for example, the current of the programmable gain amplifier and the frequency divider may be reduced. Specifically, the current of only one of the programmable gain amplifier and the frequency divider, or both, may be reduced.
By reducing the power of the anti-interference element, the power consumption of the terminal can be reduced, and the endurance level of the terminal can be improved.
Step S23: and performing intensity reduction processing on the received radio frequency signals.
When the intensity of the radio frequency signal is greater than a first preset threshold, the terminal can be considered to receive a stronger signal, and a zero intermediate frequency anti-interference lifting strategy can be started. In this case, the radio frequency signal may be subjected to a process for reducing the intensity, for example, an attenuation process or a clipping process. For a detailed description of the attenuation or clipping process, please refer to the related description in step S11, and the detailed description is omitted here.
Step S24: and acquiring the signal error rate of the processed radio frequency signal, and judging whether the signal error rate is larger than a second preset threshold value.
Please refer to the related description in step S12, which is not repeated here.
When the signal error rate is not greater than the second preset threshold, it may be considered that the interference resistance of the terminal after the reduced strength processing has satisfied the requirement, and step S25 may be performed at this time. When the signal error rate is greater than the second preset threshold, that is, after the radio frequency signal is subjected to the strength reduction processing, the anti-interference performance of the terminal still cannot meet the requirement, and at this time, step S26 may be executed.
Step S25: the power of the anti-interference element is reduced.
Please refer to the related description in step S22, which is not repeated here.
Step S26: the power of the anti-interference element is increased.
Please refer to the related description in step S13, which is not repeated here.
After step S25 or step S26, since the strength of the signal received by the terminal may change, it may be determined whether the terminal needs to continue to perform the above-mentioned anti-interference step by determining the strength of the received signal. Therefore, after step S25 or step S26, step S27 may be continued.
Step S27: and judging whether the intensity of the received radio frequency signal is smaller than a third preset threshold value.
When the intensity of the received radio frequency signal is not smaller than the third preset threshold value, further judging the condition of the terminal is needed.
In one embodiment, the third preset threshold may be the same as the second threshold. In another embodiment, the third preset threshold may be less than the second threshold.
When the intensity of the received radio frequency signal is not less than the third preset threshold value, further judgment on the condition of the intensity of the signal received by the terminal is needed. At this time, step S21 may be re-performed to determine whether the interference immunity of the terminal needs to be enhanced.
When the strength of the received rf signal is smaller than the third preset threshold, the strength of the received rf signal is considered to be too weak, and the above anti-interference processing steps can be closed, so as to reduce the influence on the communication performance of the terminal caused by the too weak signal. At this time, step S28 may be performed.
Step S28: canceling the intensity-reducing treatment of the received radio frequency signals; and/or reducing the power of the anti-interference element.
When the strength of the received radio frequency signal is smaller than the third preset threshold, the strength of the received signal is considered to be too weak, and the anti-interference method needs to be closed, so that the influence of the too weak signal on the communication performance of the terminal is reduced. The processing of the received rf signal to reduce the strength and/or the power of the anti-interference element may be eliminated.
The cancellation of the intensity-reducing process of the received rf signal may be specifically determined according to the processing performed on the received rf signal in step S23. For example, in step S23, when the intensity reducing process is to attenuate the radio frequency signal, the attenuation process is not performed again; when the strength reducing process is to perform the clipping process on the radio frequency signal, the strength reducing process is canceled, and the clipping process is not performed on the radio frequency signal.
The power of the anti-interference element is reduced, and specifically, the current of the anti-interference element can be reduced. By reducing the power of the anti-interference element, the power consumption of the terminal can be reduced, and the endurance level of the terminal can be improved.
According to the scheme, the anti-interference is performed step by step, the received radio frequency signal is subjected to intensity reduction treatment, the signal error rate is used as the quality index of the processed radio frequency signal, and the anti-interference treatment is performed by adjusting the power of the anti-interference element under the condition that the signal error rate is larger than the second preset threshold value, so that the anti-interference performance of the terminal can be further enhanced according to the actual condition of the signal error rate, and the anti-interference effect is improved.
Referring to fig. 3, fig. 3 is a schematic frame diagram of a first embodiment of the zero intermediate frequency terminal of the present application. In the present embodiment, the zero intermediate frequency terminal 30 includes a signal strength detection circuit 31, a radio frequency reception circuit 32, a signal adjustment circuit 33, a signal error rate detection circuit 34, and a signal processing circuit 35. The signal strength detection circuit 31 is configured to determine whether the strength of the received radio frequency signal is greater than a first preset threshold. When the intensity of the radio frequency signal is greater than the first preset threshold, a control signal is sent out, so that the signal adjusting circuit 33 performs intensity reducing processing on the radio frequency signal. A radio frequency receiving circuit 32. The signal conditioning circuit 33 is used for performing a process of reducing the intensity of the received radio frequency signal. The signal error rate detection circuit 34 is configured to obtain a signal error rate of the processed radio frequency signal, and determine whether the signal error rate is greater than a second preset threshold. The signal processing circuit 35 is configured to receive the control signal sent by the signal error rate detection circuit and adjust the power of the anti-interference element to perform anti-interference processing on the processed radio frequency signal when the signal error rate is greater than a second preset threshold.
Optionally, the signal adjustment circuit 33 is configured to perform a process of reducing the intensity of the received radio frequency signal by the signal adjustment circuit 33, and specifically includes: judging whether the intensity of the received radio frequency signal is larger than a first preset threshold value or not; if yes, the intensity of the radio frequency signal is reduced.
Optionally, the above-mentioned intensity reducing treatment includes at least one of: carrying out attenuation treatment on the radio frequency signals; and carrying out amplitude limiting processing on the radio frequency signals.
Optionally, the signal processing circuit 35 is configured to adjust the power of the anti-interference element to perform anti-interference processing on the processed radio frequency signal, and specifically includes: the power of the anti-interference element is increased. After the above-mentioned signal error rate detection circuit 34 determines whether the signal error rate is greater than the second preset threshold, if the signal error rate is not greater than the second preset threshold, a control signal is sent out to make the signal processing circuit 35 reduce the power of the anti-interference element.
Optionally, the signal error rate includes: average signal error rate over a predetermined time frame.
Optionally, the anti-interference element includes at least one of the following: a programmable gain amplifier and a frequency divider. The above-mentioned increasing the power of the anti-interference element includes: the current of the programmable gain amplifier and/or the frequency divider is increased. The reducing the power of the anti-interference element comprises the following steps: reducing the current of the programmable gain amplifier and/or the frequency divider.
Optionally, after the signal processing circuit 35 increases the power of the anti-interference element, or after the signal processing circuit 35 decreases the power of the anti-interference element, the signal strength detecting unit may be further configured to determine whether the strength of the received radio frequency signal is less than a third preset threshold. If so, a control signal is sent to cause the signal conditioning circuit 33 to cancel the processing of reducing the intensity of the received rf signal and/or the signal processing circuit 35 to reduce the power of the anti-interference element. If not, the signal strength detecting unit re-judges whether the strength of the received radio frequency signal is larger than a first preset threshold value, and other circuits continue to execute subsequent operations.
Optionally, after the signal strength detection unit is configured to determine whether the strength of the received radio frequency signal is greater than a first preset threshold, if not, a control signal is sent out, so that the signal processing circuit 35 reduces the power of the anti-interference element.
Referring to fig. 4, fig. 4 is a schematic diagram of a frame of an electronic terminal according to the present application. The electronic device 40 comprises a memory 41 and a processor 42 coupled to each other, the processor 42 being adapted to execute program instructions stored in the memory 41 for implementing the steps of any of the above-described embodiments of the anti-jamming method of a zero intermediate frequency terminal. In one particular implementation scenario, electronic device 40 may include, but is not limited to: the microcomputer and the server, and the electronic device 40 may also include a mobile device such as a notebook computer and a tablet computer, which is not limited herein.
In particular, the processor 42 is configured to control itself and the memory 41 to implement the steps of any of the above described display method embodiments of the puncture path. The processor 42 may also be referred to as a CPU (Central Processing Unit ). The processor 42 may be an integrated circuit chip having signal processing capabilities. The processor 42 may also be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. In addition, the processor 42 may be commonly implemented by an integrated circuit chip.
Referring to fig. 5, fig. 5 is a schematic diagram of a frame of an embodiment of a computer readable storage device according to the present application. The storage device 50 stores a computer program 51 which, when executed by a processor, implements the steps of the anti-interference method of the zero intermediate frequency terminal in any of the above embodiments.
The computer readable storage medium may be a medium such as a usb (universal serial bus), a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, which may store a computer program, or may be a server storing the computer program, and the server may send the stored computer program to another device for running, or may also run the stored computer program by itself.
According to the scheme, the anti-interference is performed step by step, the received radio frequency signal is subjected to intensity reduction treatment, the signal error rate is used as the quality basis of the processed radio frequency signal, and the anti-interference treatment is performed by adjusting the power of the anti-interference element under the condition that the signal error rate is larger than the second preset threshold value, so that the anti-interference performance of the terminal can be further enhanced according to the actual condition of the signal error rate, and the anti-interference effect is improved.
The foregoing is only the embodiments of the present application, and therefore, the patent scope of the application is not limited thereto, and all equivalent structures or equivalent processes using the descriptions of the present application and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the application.
Claims (10)
1. An anti-interference method for a zero intermediate frequency terminal is characterized by comprising the following steps:
judging whether the intensity of the received radio frequency signal is larger than a first preset threshold value or not;
if yes, carrying out intensity reduction treatment on the radio frequency signals;
acquiring the signal error rate of the processed radio frequency signal, and judging whether the signal error rate is larger than a second preset threshold value or not; the signal error rate is used for representing the accuracy of data transmission;
if yes, increasing the power of the anti-interference element so as to perform anti-interference treatment on the processed radio frequency signal; the anti-interference element is a circuit element which affects the anti-interference performance of the zero intermediate frequency terminal.
2. The method of claim 1, wherein the intensity reducing treatment comprises at least one of: carrying out attenuation treatment on the radio frequency signals; and carrying out amplitude limiting processing on the radio frequency signals.
3. The method of claim 1, wherein after said determining whether the signal error rate is greater than a second preset threshold, the method further comprises:
and if the signal error rate is not greater than a second preset threshold value, reducing the power of the anti-interference element.
4. The method of claim 1, wherein the signal error rate comprises at least one of a bit error rate or a block error rate; and/or the number of the groups of groups,
the signal error rate includes: average signal error rate over a predetermined time frame.
5. A method according to claim 3, wherein the tamper resistant element comprises at least one of: a programmable gain amplifier and a frequency divider;
said increasing the power of said tamper resistant element comprises: increasing the current of the programmable gain amplifier and/or frequency divider;
the reducing the power of the anti-interference element comprises: reducing the current of the programmable gain amplifier and/or frequency divider.
6. A method according to claim 3, characterized in that after said increasing the power of the anti-interference element and/or after said decreasing the power of the anti-interference element, the method further comprises:
judging whether the intensity of the received radio frequency signal is smaller than a third preset threshold value or not;
if yes, canceling the intensity reducing treatment of the received radio frequency signals; and/or reducing the power of the anti-interference element;
if not, re-executing the steps of judging whether the intensity of the received radio frequency signal is greater than a first preset threshold value and afterwards.
7. The method according to any one of claims 1-5, wherein after said determining whether the strength of the received radio frequency signal is greater than a first preset threshold, the method further comprises:
if not, the power of the anti-interference element is reduced.
8. A zero intermediate frequency terminal, comprising:
the radio frequency receiving circuit is used for receiving radio frequency signals;
the signal adjusting circuit is used for carrying out intensity reduction treatment on the received radio frequency signals;
the signal error rate detection circuit is used for acquiring the signal error rate of the processed radio frequency signal and judging whether the signal error rate is larger than a second preset threshold value or not; the signal error rate is used for representing the accuracy of data transmission;
the signal processing circuit is used for receiving the control signal sent by the signal error rate detection circuit and increasing the power of the anti-interference element under the condition that the signal error rate is larger than a second preset threshold value so as to perform anti-interference processing on the processed radio frequency signal; the anti-interference element is a circuit element which affects the anti-interference performance of the zero intermediate frequency terminal.
9. An electronic terminal comprising a memory and a processor coupled to each other, the processor being configured to execute program instructions stored in the memory to implement the anti-jamming method of the zero intermediate frequency terminal of any of claims 1 to 7.
10. A computer readable storage medium having stored thereon program instructions, which when executed by a processor, implement the anti-jamming method of a zero intermediate frequency terminal according to any of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011411770.7A CN114598337B (en) | 2020-12-03 | 2020-12-03 | Anti-interference method for zero intermediate frequency terminal, terminal and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011411770.7A CN114598337B (en) | 2020-12-03 | 2020-12-03 | Anti-interference method for zero intermediate frequency terminal, terminal and storage medium |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002152147A (en) * | 2000-11-09 | 2002-05-24 | Matsushita Electric Ind Co Ltd | Circuit and method for measuring desired wave/ interference wave power ratio |
| JP2004128993A (en) * | 2002-10-03 | 2004-04-22 | Ntt Docomo Inc | Control method for transmission power, base station, mobile station, and radio communication system |
| JP2009281844A (en) * | 2008-05-22 | 2009-12-03 | Japan Radio Co Ltd | Gps (global positioning system) receiver |
| CN101718873A (en) * | 2009-11-13 | 2010-06-02 | 西安电子科技大学 | Homing signal space-time anti-interference digital signal processor |
| CN104427602A (en) * | 2013-09-03 | 2015-03-18 | 华为技术有限公司 | Power control method and power control device |
| CN107370502A (en) * | 2017-07-20 | 2017-11-21 | 西安空间无线电技术研究所 | A kind of anti-strong arrowband interference method based on spectral line processing |
| CN108093415A (en) * | 2016-11-23 | 2018-05-29 | 中兴通讯股份有限公司 | A kind of method, apparatus for preventing Communication Jamming, base station and mobile terminal |
| CN111478711A (en) * | 2019-01-24 | 2020-07-31 | 海能达通信股份有限公司 | Receiver and communication equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8261169B2 (en) * | 2006-05-19 | 2012-09-04 | Panasonic Corporation | Wireless communication apparatus and wireless communication method |
-
2020
- 2020-12-03 CN CN202011411770.7A patent/CN114598337B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002152147A (en) * | 2000-11-09 | 2002-05-24 | Matsushita Electric Ind Co Ltd | Circuit and method for measuring desired wave/ interference wave power ratio |
| JP2004128993A (en) * | 2002-10-03 | 2004-04-22 | Ntt Docomo Inc | Control method for transmission power, base station, mobile station, and radio communication system |
| JP2009281844A (en) * | 2008-05-22 | 2009-12-03 | Japan Radio Co Ltd | Gps (global positioning system) receiver |
| CN101718873A (en) * | 2009-11-13 | 2010-06-02 | 西安电子科技大学 | Homing signal space-time anti-interference digital signal processor |
| CN104427602A (en) * | 2013-09-03 | 2015-03-18 | 华为技术有限公司 | Power control method and power control device |
| CN108093415A (en) * | 2016-11-23 | 2018-05-29 | 中兴通讯股份有限公司 | A kind of method, apparatus for preventing Communication Jamming, base station and mobile terminal |
| CN107370502A (en) * | 2017-07-20 | 2017-11-21 | 西安空间无线电技术研究所 | A kind of anti-strong arrowband interference method based on spectral line processing |
| CN111478711A (en) * | 2019-01-24 | 2020-07-31 | 海能达通信股份有限公司 | Receiver and communication equipment |
Non-Patent Citations (3)
| Title |
|---|
| Anti-Interference Measurement Methods of the Coupled Transmission-Line Capacitance Parameters Based on the Harmonic Components;Zhijian Hu等;《IEEE TRANSACTIONS ON POWER DELIVERY>;第31卷(第6期);全文 * |
| 中频功率对接收机抗干扰能力的影响分析;刘沉等;《测绘与空间地理信息》;第43卷(第9期);全文 * |
| 卢树军等.数字化接收机的自适应抗干扰滤波仿真.《计算机仿真》.2005,第22卷(第11期),全文. * |
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