CN111934815A - Transform domain-based single-channel multi-channel burst signal rapid detection method - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
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- 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 invention discloses a transform domain-based single-channel multi-channel burst signal rapid detection method, which comprises the following steps: s01: receiving a burst signal and acquiring a specific sampling point of a burst position; s02: processing and storing the received burst signal; s03: interacting the burst signal within the parallel sequence with a system signal; s04: performing parameter prediction and parameter compensation on the burst signal subjected to primary positioning; s05: judging the burst specific position and parameters of the burst signal; s06: all parameter information of the burst signal is acquired and the burst signal is output. The burst signal rapid detection method can comprehensively and completely analyze and detect the burst signal of each path in the communication system by utilizing an analysis mode of a transform domain and combining a Fourier transform method, and obtains the specific burst position and burst data of each burst signal so as to be convenient for carrying out real-time monitoring and positioning processing on the burst signal in the communication system subsequently and ensure the operation safety of the communication system.
Description
Technical Field
The invention relates to the technical field of communication systems, in particular to a transform domain-based single-channel multi-channel burst signal rapid detection method.
Background
With the rapid development of radio communication technology, spectrum resources become more and more tense, radio stations serve as main communication means in military application on an information battlefield, and have the advantages of small size, light weight, strong maneuverability and the like, how to hide themselves and carry out external communication under the condition of complexity and ten thousand changes, and the burst communication also refers to burst communication, wherein the burst communication is the radio communication which packages normal rate information and carries out random burst in a high-rate data mode, and a receiver restores received signals into original information and is widely applied to the field of satellite communication.
In the burst signal mode of the communication system, the burst signal of the communication system needs to be detected, the existing burst signal detection mode is not perfect, and the burst signals of all the channels in a single channel cannot be detected, so that specific parameter data of each burst signal cannot be acquired, and the communication quality of the communication system is further reduced.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a transform domain-based single-channel multi-channel burst signal rapid detection method which can comprehensively detect and analyze each channel of burst signals in a channel.
In order to achieve the purpose, the invention adopts the following technical scheme: a single-channel multi-channel burst signal rapid detection method based on a transform domain comprises the following steps:
s01: receiving burst signals in each communication channel, and acquiring specific sampling points of burst positions of each burst signal;
s02: processing the received burst signal, dividing the burst signal into a plurality of independent parallel sequences, and storing the parallel sequences before and after the acquisition time of the burst signal;
s03: interacting the burst signal in the parallel sequence with a system signal, obtaining available transform domain data, and carrying out Fourier transform on the data;
s04: according to the result after Fourier transform, performing parameter prediction on the burst signal subjected to primary positioning, and performing parameter compensation on the burst signal subjected to primary positioning after prediction;
s05: under the channel mode, carrying out secondary Fourier transform on the processed burst signal to obtain the data of a new burst signal, comparing the data with an original signal in a communication system, and judging the specific burst position and parameters of the burst signal;
s06: all parameter information of the burst signal is acquired and the burst signal is output.
As a further description of the above technical solution:
in step S01, when receiving the burst signal in the communication channel, the burst signal is received in the fixed frame format, and the burst signal channel receiving the fixed frame format is in parallel multi-path mode, so as to achieve complete reception of each burst signal.
As a further description of the above technical solution:
in step S02, the processing of the burst signal is divided into two modes, namely modulation and buffering, when modulating, the burst signal can be divided into a plurality of independent parallel sequences, and it is ensured that each sequence is not affected by each other, and when buffering, the modulated burst signal can be stored independently, and a burst signal data source which can be directly utilized is obtained, which is convenient for subsequent processing.
As a further description of the above technical solution:
in step S03, the parameter of the interaction between the burst signal and the system signal is a time variable, so that the time variable function in the burst signal is transformed into a certain variable function in the corresponding transform domain, which is convenient for subsequent fourier transform.
As a further description of the above technical solution:
in step S04, the method used for the parameter prediction of the burst signal is a carrier phase offset method, which can predict the pilot symbol of the burst signal, and the value of the parameter compensation of the burst signal is derived from the output value of the carrier phase offset prediction value after the phase offset compensation of the burst signal, so as to ensure the accuracy of the burst signal.
As a further description of the above technical solution:
in step S05, the calculation methods of the second fourier transform and the first fourier transform are the same, and the transformed data value during the second fourier transform is the parameter value obtained after the first fourier transform.
As a further description of the above technical solution:
in step S05, the channel mode of the quadratic fourier transform is a single channel mode, and the burst point of the burst signal can be determined by looking up the initial transformation point of the burst signal and the original signal in the channel, so as to obtain the final data of the burst signal.
The invention provides a single-channel multi-channel burst signal rapid detection method based on a transform domain. The method has the following beneficial effects:
(1): the burst signal rapid detection method can comprehensively and completely analyze and detect the burst signal of each path in the communication system by utilizing an analysis mode of a transform domain and combining a Fourier transform method, and obtains the specific burst position and burst data of each burst signal, so that the burst signal in the communication system can be monitored and positioned in real time in the follow-up process, the communication system can be subjected to accurate and safe self-detection, and the operation safety of the communication system can be ensured.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
A single-channel multi-channel burst signal rapid detection method based on a transform domain comprises the following steps:
s01: receiving burst signals in each communication channel, and acquiring specific sampling points of burst positions of each burst signal;
s02: processing the received burst signal, dividing the burst signal into a plurality of independent parallel sequences, and storing the parallel sequences before and after the acquisition time of the burst signal;
s03: interacting the burst signal in the parallel sequence with a system signal, obtaining available transform domain data, and carrying out Fourier transform on the data;
s04: according to the result after Fourier transform, performing parameter prediction on the burst signal subjected to primary positioning, and performing parameter compensation on the burst signal subjected to primary positioning after prediction;
s05: under the channel mode, carrying out secondary Fourier transform on the processed burst signal to obtain the data of a new burst signal, comparing the data with an original signal in a communication system, and judging the specific burst position and parameters of the burst signal;
s06: all parameter information of the burst signal is acquired and the burst signal is output.
The burst signal rapid detection method utilizes an analysis mode of a transform domain and combines a Fourier transform method to comprehensively and completely analyze and detect each path of burst signals in the communication system, and obtains specific burst positions and burst data of each burst signal so as to be convenient for subsequent real-time monitoring and positioning processing of the burst signals in the communication system, and can accurately monitor single-channel multi-path burst signals in the communication system, thereby improving the operation safety of the communication system and avoiding operation faults of the communication system.
In step S01, when receiving the burst signal in the communication channel, the burst signal is received in the fixed frame format, and the burst signal channel receiving the fixed frame format is in parallel multi-path mode, so as to realize the complete reception of each path of burst signal.
In step S02, the processing of the burst signal is divided into two modes, namely modulation and buffering, when modulating, the burst signal can be divided into a plurality of independent parallel sequences, and it is ensured that each sequence is not affected with each other, when buffering, the modulated burst signal can be stored independently, and a burst signal data source which can be directly utilized can be obtained, which is convenient for subsequent processing.
In step S03, the parameter of the burst signal interacting with the system signal is a time variable, so that the time variable function in the burst signal is transformed into a certain variable function in the corresponding transform domain, which facilitates the subsequent fourier transform.
In step S04, the method used for the parameter prediction of the burst signal is a carrier phase offset method, which can predict the pilot symbol of the burst signal, and the value of the parameter compensation of the burst signal is derived from the output value of the carrier phase offset prediction value after the phase offset compensation of the burst signal, thereby ensuring the accuracy of the burst signal.
In step S05, the calculation methods of the second fourier transform and the first fourier transform are the same, and the transformed data value during the second fourier transform is the parameter value obtained after the first fourier transform.
In step S05, the channel mode of the quadratic fourier transform is a single channel mode, and the burst point of the burst signal can be determined by looking up the initial transformation point of the burst signal and the original signal in the channel, so as to obtain the final data of the burst signal.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The method for rapidly detecting the single-channel multi-channel burst signal based on the transform domain is characterized by comprising the following steps of:
s01: receiving burst signals in each communication channel, and acquiring specific sampling points of burst positions of each burst signal;
s02: processing the received burst signal, dividing the burst signal into a plurality of independent parallel sequences, and storing the parallel sequences before and after the acquisition time of the burst signal;
s03: interacting the burst signal in the parallel sequence with a system signal, obtaining available transform domain data, and carrying out Fourier transform on the data;
s04: according to the result after Fourier transform, performing parameter prediction on the burst signal subjected to primary positioning, and performing parameter compensation on the burst signal subjected to primary positioning after prediction;
s05: under the channel mode, carrying out secondary Fourier transform on the processed burst signal to obtain the data of a new burst signal, comparing the data with an original signal in a communication system, and judging the specific burst position and parameters of the burst signal;
s06: all parameter information of the burst signal is acquired and the burst signal is output.
2. The transform domain-based single-channel multi-channel burst signal fast detection method according to claim 1, wherein: in step S01, when receiving the burst signal in the communication channel, the burst signal is received in the fixed frame format, and the burst signal channel receiving the fixed frame format is in parallel multi-path mode, so as to achieve complete reception of each burst signal.
3. The transform domain-based single-channel multi-channel burst signal fast detection method according to claim 1, wherein: in step S02, the processing of the burst signal is divided into two modes, namely modulation and buffering, when modulating, the burst signal can be divided into a plurality of independent parallel sequences, and it is ensured that each sequence is not affected by each other, and when buffering, the modulated burst signal can be stored independently, and a burst signal data source which can be directly utilized is obtained, which is convenient for subsequent processing.
4. The transform domain-based single-channel multi-channel burst signal fast detection method according to claim 1, wherein: in step S03, the parameter of the interaction between the burst signal and the system signal is a time variable, so that the time variable function in the burst signal is transformed into a certain variable function in the corresponding transform domain, which is convenient for subsequent fourier transform.
5. The transform domain-based single-channel multi-channel burst signal fast detection method according to claim 1, wherein: in step S04, the method used for the parameter prediction of the burst signal is a carrier phase offset method, which can predict the pilot symbol of the burst signal, and the value of the parameter compensation of the burst signal is derived from the output value of the carrier phase offset prediction value after the phase offset compensation of the burst signal, so as to ensure the accuracy of the burst signal.
6. The transform domain-based single-channel multi-channel burst signal fast detection method according to claim 1, wherein: in step S05, the calculation methods of the second fourier transform and the first fourier transform are the same, and the transformed data value during the second fourier transform is the parameter value obtained after the first fourier transform.
7. The transform domain-based single-channel multi-channel burst signal fast detection method according to claim 1, wherein: in step S05, the channel mode of the quadratic fourier transform is a single channel mode, and the burst point of the burst signal can be determined by looking up the initial transformation point of the burst signal and the original signal in the channel, so as to obtain the final data of the burst signal.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103957027A (en) * | 2014-05-23 | 2014-07-30 | 哈尔滨工业大学 | Weighted score Fourier transformation domain signal transmission method based on multi-sequence combined spread spectrum |
| CN104821927A (en) * | 2015-04-27 | 2015-08-05 | 西安空间无线电技术研究所 | Multiplied-sampling-based parallel burst signal detection system in burst demodulation |
| CN110113231A (en) * | 2019-04-30 | 2019-08-09 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | The method for testing the low detection probability performance of burst communication |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103957027A (en) * | 2014-05-23 | 2014-07-30 | 哈尔滨工业大学 | Weighted score Fourier transformation domain signal transmission method based on multi-sequence combined spread spectrum |
| CN104821927A (en) * | 2015-04-27 | 2015-08-05 | 西安空间无线电技术研究所 | Multiplied-sampling-based parallel burst signal detection system in burst demodulation |
| CN110113231A (en) * | 2019-04-30 | 2019-08-09 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | The method for testing the low detection probability performance of burst communication |
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| 杜亚琦等: "复杂背景下猝发信号的捕获算法", 《电子设计工程》 * |
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