CN114884562B - Delay signal processing method based on jump processing - Google Patents
Delay signal processing method based on jump processing Download PDFInfo
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- CN114884562B CN114884562B CN202210482846.8A CN202210482846A CN114884562B CN 114884562 B CN114884562 B CN 114884562B CN 202210482846 A CN202210482846 A CN 202210482846A CN 114884562 B CN114884562 B CN 114884562B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
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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
Abstract
The invention provides a delay signal processing method based on jump processing, which relates to the technical field of remote detection and comprises the following steps: acquiring a delay time value of a signal sending device; judging whether the delay time value of the signal sending device frequently appears or not is not smaller than a preset time difference value, if so, selecting a device arranged between the signal receiving device and the signal sending device as an intermediate device; the intermediate device is used for preprocessing an original signal and then transmitting the preprocessed original signal to the signal receiving device; the signal receiving device judges whether the original signal arrives earlier than the preprocessed signal; if yes, the original signal is corrected by combining the preprocessed signals; and otherwise, predicting the original signal according to the preprocessed signal. The invention is simple and reasonable, can preprocess the original signal with possible signal delay by jumping to the original signal by the intermediate device, thereby reducing the loss caused by the signal delay and having wide application range.
Description
Technical Field
The invention relates to the technical field of remote detection,
in particular, the present invention relates to a delayed signal processing method based on a jump process.
Background
With the continuous development of aerospace technology, the requirements of various applications such as high-resolution remote sensing, space astronomical observation and the like on the comprehensive performance of the spacecraft are also higher and higher, and a detection platform with high pointing precision and high stability index needs to be explored so as to meet the requirements of future spacecraft development.
The microsatellite or the high-altitude unmanned aerial vehicle has the advantages of flexibility, low cost and short period, the development of miniaturized remote sensing detection instruments is more and more increased, for example, chinese patent invention patent CN110920934A provides a ground remote sensing satellite structure which comprises a platform cabin, a load cabin, a star sensor, a ground remote sensing camera, a ground data transmission antenna, an initiating explosive device, a magnetic floating actuator and a satellite and arrow separation device, wherein the magnetic floating actuator is used for controlling the posture of the load cabin after the load cabin is separated from the platform cabin; the ground remote sensing camera is used for performing high-resolution imaging observation on the ground; the ground data transmission antenna is used for downloading the ground remote sensing camera detection data to the ground receiving station; the initiating explosive unlocking device is used for connecting the platform cabin and the load cabin during satellite launching, detonating after the satellite enters the orbit, and releasing the constraint on the load cabin; the satellite-rocket separation device is used for connecting a satellite with the carrier rocket during launching, and the satellite is separated from the carrier rocket after entering the orbit. Said invention can implement physical isolation of load cabin and platform cabin, and can implement high-accuracy earth remote sensing observation.
However, the above remote sensing detection method still has the following disadvantages: if the space probe detects the signal and then sends the data back to the ground, the micro satellite is likely to be influenced by the interference of the sent signal due to the too small bandwidth, so that the received information is distorted, the received information is also likely to be blocked by an obstacle, and the received information is also likely to be intercepted by the other party probe, so that important detection information is leaked or processed untimely, and the important detection information can be summarized into signal delay, and large loss is likely to be caused.
Therefore, in order to solve the above-mentioned problems, it is necessary to design a reasonable delay signal processing method based on the jump processing.
Disclosure of Invention
The invention aims to provide a jump processing-based delay signal processing method which is simple and reasonable, can jump to an original signal through an intermediate device, can preprocess the original signal possibly with signal delay, thereby reducing the loss caused by the signal delay and has wide application range.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
a method of processing a delayed signal based on a jump process, comprising the steps of:
s1: when the signal sending device sends out a signal, the signal sending time is added; when the signal receiving device receives a signal sent by the signal sending device, acquiring a delay time value of signal receiving time and signal sending time;
s2: judging whether the continuous three-time delay time value of the signal sending device is not smaller than a preset time difference value or the accumulated five-time delay time value in the preset time is not smaller than the preset time difference value, if so, executing the step S3; otherwise, not executing the operation;
s3: selecting a device arranged between the signal receiving device and the signal transmitting device as an intermediate device;
s4: when the intermediate device acquires the original signal sent by the signal sending device, the signal is preprocessed and then transferred to the signal receiving device;
s5: the signal receiving device judges whether the original signal sent by the signal sending device is earlier than the signal which is received and preprocessed by the intermediate device; if yes, the original signal is corrected by combining the preprocessed signals; and otherwise, predicting the original signal according to the preprocessed signal.
Preferably, the signal transmitting apparatus and the signal receiving apparatus perform time correction at predetermined intervals when step S1 is performed.
Preferably, the predetermined time value is generated before step S2 is performed.
As a preferred aspect of the present invention, when executing step S2, each time the signal receiving apparatus receives the signal from the signal emitting apparatus, the delay time value is obtained, and the signal emitting apparatus, the signal emitting time and the delay time value are recorded in the memory table in one-to-one correspondence, once the delay time value is not less than the predetermined time difference value, the delay time value of the signal emitting apparatus from the predetermined time before the current time to the current time is obtained from the memory table, and it is determined whether the delay time value is not less than the predetermined time difference value and occurs for the third time or not less than five times in succession, and if so, step S3 is executed.
Preferably, in the step S3, at least one device disposed between the signal receiving device and the signal transmitting device is selected as an intermediate device, and the delay time value of the signal transmitted by the intermediate device reaching the signal receiving device is ensured to be not greater than the second time difference value, and the second time difference value is not greater than the first time difference value 2 times of the root number of the second time difference value.
As a preferred aspect of the present invention, when the step S3 is executed, when the number of intermediate devices is one, the delay time value from the signal transmitting device to the intermediate device and the delay time value from the intermediate device to the signal receiving device are not greater than the second time difference value; when the number of the intermediate devices is multiple, the delay time value of each jumping process is not larger than the second time difference value when the signals sent by the signal sending device sequentially jump through the plurality of intermediate devices.
Preferably, when step S4 is executed, the intermediate device acquires the original signal sent by the signal sending device, encrypts the signal, and then transmits the encrypted signal to the signal receiving device.
As a preferred embodiment of the present invention, when step S5 is performed, when the signal receiving device receives the original signal sent by the signal sending device earlier than the signal after the signal is received and preprocessed by the intermediate device, the signal receiving device decodes the information content according to the original signal obtained earlier, decrypts the signal after the signal is received and preprocessed by the intermediate device, and performs matching correction with the original signal content, so as to prevent the signal from being sent through interception and simulation.
As a preferred embodiment of the present invention, when step S5 is executed, when the signal receiving device receives the original signal sent by the signal sending device and is not earlier than the signal after the signal is received and preprocessed by the intermediate device, then the signal after the signal is received and preprocessed by the intermediate device is decrypted and read, after the original signal is obtained, the signal is compared with the preprocessed signal, so as to obtain the matching degree, that is, the intermediate device transfers the trust degree, and after each time the preprocessed signal is obtained, the trust degree is introduced, and the original data is preprocessed, so as to improve the processing efficiency of the signal sent by the signal sending device.
The delay signal processing method based on jump processing has the beneficial effects that: the method is simple and reasonable, the original signal with possible signal delay can be preprocessed by jumping to reach the original signal through the intermediate device, so that the loss caused by the signal delay is reduced, and the method is wide in application range.
Drawings
Fig. 1 is a flow chart of a delay signal processing method based on jump processing according to the present invention.
Detailed Description
The following are specific examples of the present invention, and the technical solutions of the present invention are further described, but the present invention is not limited to these examples.
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the modules and structures set forth in these embodiments does not limit the scope of the invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and systems known to those of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the authorization specification where appropriate.
Examples: as shown in fig. 1, which is only one embodiment of the present invention, a method for processing a delayed signal based on a jump process includes the steps of:
s1: when the signal sending device sends out a signal, the signal sending time is added; when the signal receiving device receives a signal sent by the signal sending device, acquiring a delay time value of signal receiving time and signal sending time;
s2: judging whether the continuous three-time delay time value of the signal sending device is not smaller than a preset time difference value or the accumulated five-time delay time value in the preset time is not smaller than the preset time difference value, if so, executing the step S3; otherwise, not executing the operation;
s3: selecting a device arranged between the signal receiving device and the signal transmitting device as an intermediate device;
s4: when the intermediate device acquires the original signal sent by the signal sending device, the signal is preprocessed and then transferred to the signal receiving device;
s5: the signal receiving device judges whether the original signal sent by the signal sending device is earlier than the signal which is received and preprocessed by the intermediate device; if yes, the original signal is corrected by combining the preprocessed signals; and otherwise, predicting the original signal according to the preprocessed signal.
Here, when step S1 is performed, the signal transmitting apparatus and the signal receiving apparatus perform time correction every predetermined time.
Of course, a predetermined time value is generated before step S2 is performed.
And when executing the step S2, each time the signal receiving device receives the signal of the signal emitting device, acquiring a delay time value, recording the signal emitting device, the signal emitting time and the delay time value into a storage table in a one-to-one correspondence manner, once the delay time value is not smaller than a preset time difference value, acquiring the delay time value of the signal emitting device from the preset time before the current time to the current time from the storage table, judging whether the delay time value is not smaller than the preset time difference value or not to continuously occur for the third time or not to occur for the fifth time, and executing the step S3 if the delay time value is not smaller than the preset time difference value.
Then, when executing step S3, at least one device disposed between the signal receiving device and the signal emitting device is selected as an intermediate device, and it is ensured that the delay time value of the signal emitted by the intermediate device reaching the signal receiving device is not greater than the second time difference value, and the second time difference value is not greater than the first time difference value 2 times the root number of the second time difference value.
When the number of the intermediate devices is one in executing the step S3, the delay time value from the signal sending device to the intermediate device and the delay time value from the intermediate device to the signal receiving device are not greater than the second time difference value; when the number of the intermediate devices is multiple, the delay time value of each jumping process is not larger than the second time difference value when the signals sent by the signal sending device sequentially jump through the plurality of intermediate devices.
Finally, when step S4 is executed, the intermediate device acquires the original signal sent by the signal sending device, encrypts the signal, and then transmits the encrypted signal to the signal receiving device.
When the signal receiving device receives the original signal sent by the signal sending device before the signal preprocessed by the intermediate device, the signal receiving device decodes the information content according to the original signal obtained earlier, decrypts the signal preprocessed by the intermediate device, and performs matching correction with the original signal content to prevent the signal from being sent by simulation after interception.
On the other hand, when the step S5 is executed, when the signal receiving device receives the original signal sent by the signal sending device and is not earlier than the signal after the signal is received and preprocessed by the intermediate device, then the signal after the signal is received and preprocessed by the intermediate device is decrypted and read, after the original signal is obtained, the signal is compared with the preprocessed signal, the matching degree is obtained, that is, the intermediate device transfers the trust degree, after the preprocessed signal is obtained each time, the trust degree is introduced, and the original data is preprocessed, so that the processing efficiency of the signal sent by the signal sending device is improved.
The delay signal processing method based on the jump processing is simple and reasonable, the original signal can be jumped to the original signal through the intermediate device, and the original signal possibly with signal delay can be preprocessed, so that the loss caused by the signal delay is reduced, and the application range is wide.
The present invention is not limited to the above-described specific embodiments, and various modifications and variations are possible. Any modification, equivalent replacement, improvement, etc. of the above embodiments according to the technical substance of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A delay signal processing method based on jump processing is characterized in that: the method comprises the following steps:
s1: when the signal sending device sends out a signal, the signal sending time is added; when the signal receiving device receives a signal sent by the signal sending device, acquiring a delay time value of signal receiving time and signal sending time;
s2: judging whether the continuous three-time delay time value of the signal sending device is not less than a first time difference value or the accumulated five-time delay time value in the preset time is not less than the first time difference value, if so, executing the step S3; otherwise, not executing the operation;
s3: selecting a device arranged between the signal receiving device and the signal transmitting device as an intermediate device;
s4: when the intermediate device acquires the original signal sent by the signal sending device, the signal is preprocessed and then transferred to the signal receiving device;
s5: the signal receiving device judges whether the original signal sent by the signal sending device is earlier than the signal which is received and preprocessed by the intermediate device; if yes, the original signal is corrected by combining the preprocessed signals; otherwise, predicting the original signal according to the preprocessed signal;
when step S3 is executed, at least one device disposed between the signal receiving device and the signal sending device is selected as an intermediate device, and it is ensured that the delay time value of the signal sent by the intermediate device reaching the signal receiving device is not greater than a second time difference value, and the second time difference value is not greater than a first time difference value 2 times of the root number of the second time difference value.
2. A delayed signal processing method based on a jump process according to claim 1, characterized in that:
when step S1 is executed, the signal transmitting apparatus and the signal receiving apparatus perform time correction every predetermined unit time.
3. A delayed signal processing method based on a jump process according to claim 1, characterized in that:
before step S2 is performed, a value for a predetermined time is generated.
4. A delayed signal processing method based on a jump process according to claim 3, characterized in that:
when executing step S2, each time the signal receiving device receives the signal of the signal emitting device, the delay time value is obtained, and the signal emitting device, the signal emitting time and the delay time value are recorded in the storage table in a one-to-one correspondence manner, once the delay time value is not smaller than the preset time difference, the delay time value of the signal emitting device from the preset time before the current time to the current time is obtained from the storage table, whether the delay time value is not smaller than the preset time difference is continuously generated for the third time or the occurrence times are not smaller than five times is judged, if yes, step S3 is executed.
5. A delayed signal processing method based on a jump process according to claim 1, characterized in that:
when the number of the intermediate devices is one in executing the step S3, the delay time value from the signal sending device to the intermediate device and the delay time value from the intermediate device to the signal receiving device are not greater than the second time difference value; when the number of the intermediate devices is multiple, the delay time value of each jumping process is not larger than the second time difference value when the signals sent by the signal sending device sequentially jump through the plurality of intermediate devices.
6. A delayed signal processing method based on a jump process according to claim 1, characterized in that:
when the step S4 is executed, the intermediate device acquires the original signal sent by the signal sending device, encrypts the signal, and then transmits the encrypted signal to the signal receiving device.
7. The method for processing a delayed signal based on a jump process according to claim 6, wherein:
when the step S5 is executed, when the signal receiving device receives the original signal sent by the signal sending device earlier than the signal received after the preprocessing of the intermediate device, the information content is interpreted according to the original signal obtained earlier, the signal received later after the preprocessing of the intermediate device is decrypted, and the matching correction is performed with the original signal content, so that the signal is prevented from being sent through the simulation after interception.
8. The method for processing a delayed signal based on a jump process according to claim 6, wherein:
when executing step S5, when the signal receiving device receives the original signal sent by the signal sending device and is not earlier than the signal after receiving the pretreatment of the intermediate device, then the signal after the pretreatment of the intermediate device is received first is decrypted and read, after the original signal is obtained, the signal is compared with the pretreatment signal, the matching degree is obtained, namely, the intermediate device transfers the trust degree, after each time the pretreatment signal is obtained, the trust degree is introduced, and the original data is preprocessed, so that the processing efficiency of the signal sent by the signal sending device is improved.
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