CN114079601A - Data processing method and related device - Google Patents
Data processing method and related device Download PDFInfo
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- CN114079601A CN114079601A CN202010838573.7A CN202010838573A CN114079601A CN 114079601 A CN114079601 A CN 114079601A CN 202010838573 A CN202010838573 A CN 202010838573A CN 114079601 A CN114079601 A CN 114079601A
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- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
- H04L25/067—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing soft decisions, i.e. decisions together with an estimate of reliability
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
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Abstract
The application provides a data processing method and a related device thereof. The data processing method comprises the following steps: when the bit cutting mode of the current data is different from that of the previous data, performing bit cutting processing on the front N groups of data by adopting the bit cutting mode of the current data to obtain new bit-cut front N groups of data; and transmitting the newly truncated front N groups of data and the truncated current data to a receiving demodulation link, and enabling the receiving demodulation link to demodulate the truncated current data based on the newly truncated front N groups of data. The method and the device effectively smooth the sudden change of the demodulation signal introduced by the truncation mode hopping, well solve the problem that the sudden change of the demodulation signal caused by the truncation hopping deteriorates the receiving performance, and improve the receiving performance of the product.
Description
Technical Field
The present application relates to the field of data processing technologies, and in particular, to a data processing method and a related apparatus.
Background
If the transmitter or the receiver is in a dynamic process in the communication process, the intensity of a received signal can be obviously changed, and the corresponding data amplitude can also be obviously changed, so that the interception mode adopted by data is continuously changed, the output data is discontinuous, noise occurs in analog communication and error codes occur in digital communication, and the communication quality and the user experience are seriously influenced.
Disclosure of Invention
The application provides a data processing method and a related device thereof, which can solve the problem that the receiving performance is deteriorated due to sudden change of a demodulation signal caused by truncation jump.
In order to solve the above problem, the present application provides a data processing method, including:
when the bit cutting mode of the current data is different from that of the previous data, performing bit cutting processing on the front N groups of data by adopting the bit cutting mode of the current data to obtain new bit-cut front N groups of data;
and transmitting the newly truncated front N groups of data and the truncated current data to a receiving demodulation link, and enabling the receiving demodulation link to demodulate the truncated current data based on the newly truncated front N groups of data.
The method for transmitting the first N groups of data of the new truncated bit and the current data of the truncated bit to the receiving demodulation link comprises the following steps:
and sequentially transmitting the first N groups of data of the new truncated bits and the current data of the truncated bits to the receiving demodulation link, so that when the filter in the receiving demodulation link processes the current data of the truncated bits, the buffer of the filter is updated to at least part of data in the first N groups of data of the new truncated bits.
And N is greater than or equal to the maximum value of the data quantity stored in the buffer of all the filters.
Wherein N is greater than or equal to 3 and less than or equal to 5, and N is an integer.
When the bit cutting mode of the current data is different from the bit cutting mode of the previous data, the bit cutting processing is performed on the previous N groups of data by adopting the bit cutting mode of the current data, and the method comprises the following steps:
acquiring current data;
performing bit truncation processing on the current data to obtain truncated current data;
judging whether the bit cutting mode of the current data is the same as that of the previous data or not;
and when the bit cutting mode of the current data is the same as that of the previous data, transmitting the current data which is subjected to bit cutting to a receiving demodulation link.
Wherein receiving the current data then comprises:
and updating the data in the backup into the first N groups of data so as to read the first N groups of data from the backup when the bit interception mode of the current data is different from the bit interception mode of the previous data.
Wherein, the current data and the former N groups of data are 24-bit IQ data, and the newly truncated former N groups of data and the truncated current data are 16-bit IQ data.
In order to solve the above problem, the present application provides a data processing apparatus, comprising:
the bit cutting processing module is used for performing bit cutting processing on the front N groups of data by adopting the bit cutting mode of the current data when the bit cutting mode of the current data is different from the bit cutting mode of the previous data to obtain the newly-cut front N groups of data;
and the demodulation processing module is used for transmitting the new truncated front N groups of data and the truncated current data to the receiving demodulation link, and enabling the receiving demodulation link to demodulate the truncated current data based on the new truncated front N groups of data.
To solve the above problem, the present application provides an electronic device including a memory and a processor; the memory has stored therein a computer program for execution by the processor to perform the steps of the above method.
To solve the above problem, the present application provides a computer-readable storage medium having a computer program stored thereon, which when executed by a processor implements the steps of the above method.
The method comprises the following steps: different from the prior art, when the bit cutting mode of the current data is different from that of the previous data, namely the bit cutting mode jumps, the bit cutting processing is carried out on the previous N groups of data by adopting the bit cutting mode of the current data so as to obtain the newly cut previous N groups of data; the front N groups of data of the new truncated bit and the current data of the truncated bit are transmitted to a receiving demodulation link, so that the receiving demodulation link demodulates the current data of the truncated bit based on the front N groups of data of the new truncated bit, and thus, demodulation errors or sudden changes of the current data of the truncated bit caused by the fact that the truncation mode of filter Buffer data required by the demodulation processing of the current data of the truncated bit is different from the truncation mode of the current data can be avoided, the sudden changes of demodulation signals caused by the jump of the truncation mode can be effectively smoothed, the demodulation performance of the jump position of the truncation mode can be improved, the problem that the sudden changes of the demodulation signals caused by the jump of the truncated bit can deteriorate the receiving performance can be well solved, and the receiving performance of products can be improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic flow chart of a first embodiment of the data processing method of the present application;
FIG. 2 is a schematic flow chart of a second embodiment of the data processing method of the present application;
FIG. 3 is a schematic diagram of the data processing method according to the present application for truncating the first N sets of data in backup;
FIG. 4 is a graph showing a comparison of demodulation performance without and with the data processing method of the present application;
FIG. 5 is a schematic diagram of an electronic device of the present application;
FIG. 6 is a schematic structural diagram of an embodiment of a computer-readable storage medium according to the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present application, the data processing method and the related apparatus provided in the present application are further described in detail below with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, fig. 1 is a schematic flow chart of a data processing method according to a first embodiment of the present application. The data processing method of the present embodiment includes the following steps.
S101: and performing bit truncation processing on the front N groups of data by adopting a bit truncation mode of the current data to obtain the newly truncated front N groups of data.
And when the bit cutting mode of the current data is different from that of the previous data, performing bit cutting processing on the front N groups of data by adopting the bit cutting mode of the current data to obtain the newly-cut front N groups of data.
It is understood that the previous data refers to a previous set of data of the current data, and the previous N sets of data refer to N sets of data prior to the current data. Wherein N is an integer, and N can be preset and can be any numerical value such as 2 groups, 3 groups, 4 groups, 5 groups or 7 groups. The previous data and the previous N-th group of data are data before the bit-slicing process is performed. Wherein each set of data may include one or more data. In some implementation scenarios, a set of data may be all of the data of one interrupt.
The truncation is to extract low-bit-width data from high-bit-width data, and extract 16-bit data from 24-bit data or 16-bit data from 32-bit data as output data. There are various bit interception methods, such as a method of intercepting a high bit, a method of intercepting a low bit, and a method of intercepting a medium bit, based on how to extract data with a low bit from data with a high bit, and which position data from data with a high bit.
S102: and transmitting the newly truncated front N groups of data and the truncated current data to a receiving demodulation link, and enabling the receiving demodulation link to demodulate the truncated current data based on the newly truncated front N groups of data.
And transmitting the newly truncated front N groups of data and the truncated current data to a receiving demodulation link, and enabling a processing unit of the receiving demodulation link to process the truncated current data based on at least part of the data of the newly truncated front N groups of data, namely, the receiving demodulation link demodulates the truncated current data based on the newly truncated front N groups of data.
In one implementation, the N groups of new truncated previous data and the truncated current data may be sequentially transmitted to the receiving demodulation link, so that the receiving demodulation link may sequentially process the N groups of new truncated previous data and the truncated current data, and when the truncated current data is processed, the content of the buffer of each processing unit in the receiving demodulation link is updated to at least part of the N groups of new truncated previous data, so that each processing unit may process the truncated current data according to at least part of the N groups of new truncated previous data.
In another implementation, the content of the buffer of each processing unit in the receiving demodulation link can be directly updated with the first N groups of data of the new truncated bits.
In this embodiment, when the bit cutting mode of the current data is different from the bit cutting mode of the previous data, that is, when the bit cutting mode jumps, the bit cutting mode of the current data is adopted to perform bit cutting processing on the previous N groups of data to obtain new bit-cut previous N groups of data; the front N groups of data of the new truncated bit and the current data of the truncated bit are transmitted to a receiving demodulation link, so that the receiving demodulation link demodulates the current data of the truncated bit based on the front N groups of data of the new truncated bit, and thus, demodulation errors or sudden changes of the current data of the truncated bit caused by the fact that the truncation mode of filter Buffer data required by the demodulation processing of the current data of the truncated bit is different from the truncation mode of the current data can be avoided, the sudden changes of demodulation signals caused by the jump of the truncation mode can be effectively smoothed, the demodulation performance of the jump position of the truncation mode can be improved, the problem that the sudden changes of the demodulation signals caused by the jump of the truncated bit can deteriorate the receiving performance can be well solved, and the receiving performance of products can be improved.
Referring to fig. 2, fig. 2 is a schematic flow chart of a data processing method according to a second embodiment of the present application. The data processing method of the present embodiment includes the following steps.
S201: and acquiring current data.
In an application scenario, the current data may be high-bit-width data acquired by a Digital Signal Processor (DSP) from an analog-to-digital converter (ADC) or other devices, and it is assumed that the digital signal processor needs to perform data processing according to a low bit width due to performance limitations of the digital signal processor, so that the digital signal processor needs to perform bit truncation on the high-bit-width data to obtain the low-bit-width data. Of course, the data processing method can be applied to any scheme which needs bit truncation and demodulation of the truncated data.
The current data may be IQ data or the like.
S202: and updating the data in the backup into the first N groups of data of the current data.
After the current data is acquired, the data in the backup can be updated to the first N groups of data of the current data, so that the first N groups of data of the current data can be directly read from the backup when the bit cutting mode of the current data is different from the bit cutting mode of the first group of data of the current data.
Updating the data in the backup may include: adding a previous group of data of the current data into the backup, and deleting the data received first in the backup according to the first-in first-out sequence, so that the data in the backup is always N groups of data before the current data. It is understood that the first N sets of data in the backup are sorted in the received order of precedence.
S203: and carrying out bit truncation processing on the current data to obtain the truncated current data.
The execution sequence of step S203 is not limited, and may be executed before step S202 or after step S202, that is, before step S204.
S204: and judging whether the bit cutting mode of the current data is the same as that of the previous data or not.
If the bit-cutting mode of the current data is the same as the bit-cutting mode of the previous data, go to step S207; if the bit-cutting mode of the current data is different from the bit-cutting mode of the previous data, the process proceeds to step S205.
S205: and performing bit truncation processing on the front N groups of data by adopting a bit truncation mode of the current data to obtain the newly truncated front N groups of data.
Assuming that the bit-cutting mode of the current data is a mode of cutting down 16 bits from the current 24-bit data, and the bit-cutting mode of the first 4 groups of data in the backup is a mode of cutting up 16 bits from the first N groups of data of 24 bits, as shown in fig. 3, after the bit-cutting mode of the current data is determined to be changed, bit-cutting processing can be performed on the first 4 groups of data in the backup in the bit-cutting mode of the current data, that is, bit-cutting processing can be performed on the first 4 groups of data in the backup in the 16-bit-cutting mode.
Wherein N may be greater than or equal to 2, and N is an integer. Preferably, N is 3 to 5.
The current data and the first N-group data may be IQ data.
S206: and transmitting the newly truncated front N groups of data and the truncated current data to a receiving demodulation link, and enabling the receiving demodulation link to demodulate the truncated current data based on the newly truncated front N groups of data.
In an implementation manner, the N groups of data before the new truncation and the current data after the truncation may be sequentially transmitted to the receiving demodulation link, so that each receiving processing module in the receiving demodulation link processes the N groups of data before the new truncation first, and then processes the current data after the truncation, so that each receiving processing module may process the current data after the truncation based on the N groups of data before the new truncation when processing the current data after the truncation, thereby ensuring consistency of the demodulation truncation and continuity of data processing of each demodulation module. For example, when each filter in the receiving demodulation link processes truncated current data, the buffer of each filter is updated to at least part of data in the first N groups of data of the new truncation, so that each filter can process the truncated current data based on the data in the buffer in the same way as the current data is truncated.
It is understood that the order in which the newly truncated first N groups of data and the truncated current data are input to the reception demodulation chain may be the order of reception of the first N groups of data and the current data.
Alternatively, the receiving demodulation chain may delete the demodulation result of the N groups of data of the new truncated bits, may not output the demodulation result of the N groups of data of the new truncated bits, and may output the demodulation result of the truncated current data after demodulating the truncated current data.
In addition, the new truncated previous N groups of data and the truncated current data may be transmitted to the receiving demodulation link after the truncated previous data is input to the receiving demodulation link, and then the receiving demodulation link may perform demodulation processing on the truncated current data based on the new truncated previous N groups of data, so that a demodulation result of the truncated current data may be output after a demodulation result of the truncated previous data, and continuity of the demodulated data may be ensured. The truncated previous data refers to data obtained by truncating the previous data according to the truncation manner of the previous data.
Of course, in other implementations, when each filter in the receiving demodulation chain processes the truncated current data, each filter buffer is updated by at least part of the data of the first N groups of data of the new truncation.
Preferably, N is greater than or equal to the maximum value of the data amount stored in the buffer of all the filters, so as to ensure that the buffer of each filter in the receiving demodulation chain can be updated to the data in the same way as the current data truncation. If N is too small, the buffer buffers of each filter in the receiving demodulation link are not all updated to data with the same truncation mode as the current data, so that the demodulation performance at the hopping position of the truncation mode cannot be well improved; if N is too large, too much data needs to be transmitted to the receive demodulation chain, which processes the data somewhat inefficiently. Therefore, N is set between 3 and 5, and the buffer of each filter in the receiving demodulation link can be completely updated to the data with the same truncation mode as the current data under the condition of ensuring the demodulation efficiency.
S207: and transmitting the truncated current data to a receiving demodulation chain.
When the bit cutting mode of the current data is the same as that of the previous data, the bit-cut current data can be directly transmitted to the receiving demodulation link, and then the receiving demodulation link demodulates the bit-cut current data and outputs the demodulation result of the bit-cut current data.
The above data processing method may be applied in a zero intermediate frequency scheme (e.g., AK2401) or a super heterodyne scheme (e.g., AD 9864). The above method may be performed by any processor, such as a digital signal processor. The digital signal processor may be of the C67 family or other family.
The application also tests the demodulation performance of the data processing method which is not used and the demodulation performance of the data processing method which is used, and as can be seen from fig. 4, by using the data processing method, the data demodulation at the data truncation jump position can be smoother, the demodulation performance at the truncation mode jump position is improved, and the product receiving performance is improved.
The application also discloses a data processing device which comprises a bit truncation processing module and a demodulation processing module.
The bit-cutting processing module is used for performing bit-cutting processing on N groups of data before the current data by adopting the bit-cutting mode of the current data when the bit-cutting mode of the current data is different from the bit-cutting mode of the previous group of data before the current data, so as to obtain the N groups of data before the new bit-cutting.
The demodulation processing module is used for transmitting the new truncated front N groups of data and the truncated current data to the receiving demodulation link, and the receiving demodulation link demodulates the truncated current data based on the new truncated front N groups of data.
Optionally, the demodulation processing module is specifically configured to sequentially transmit the first N groups of data of the new truncation and the current data of the truncated bit to the receiving demodulation link, so that when each filter in the receiving demodulation link processes the current data of the truncated bit, the buffer of each filter is updated to at least part of data in the first N groups of data of the new truncation.
The bit-cutting processing module is also used for acquiring current data; performing bit truncation processing on the current data to obtain truncated current data; judging whether the bit cutting mode of the current data is the same as that of the previous data or not; and when the bit cutting mode of the current data is the same as that of the previous data, transmitting the current data which is subjected to bit cutting to a receiving demodulation link.
The data processing device also comprises a backup module, wherein the backup module is used for updating the data in the backup into the first N groups of data so as to read the first N groups of data from the backup when the bit interception mode of the current data is different from the bit interception mode of the previous data.
Referring to fig. 5, fig. 5 is a schematic structural diagram of an embodiment of an electronic device according to the present application. The electronic device 10 includes a memory 11 and a processor 12 coupled to each other, the memory 11 is used for storing program instructions, and the processor 12 is used for executing the program instructions to implement the method of any of the above embodiments.
The logical processes of the above-described data processing method are presented as a computer program, which can be stored in a computer storage medium if it is sold or used as a stand-alone software product, and thus a computer-readable storage medium is proposed in the present application. Referring to fig. 6, fig. 6 is a schematic structural diagram of an embodiment of a computer-readable storage medium 20 of the present application, in which a computer program 21 is stored, and when the computer program 21 is executed by a processor, the steps in the data processing method are implemented.
The computer-readable storage medium 20 may be a medium that can store a computer program, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, or may be a server that stores the computer program, and the server can send the stored computer program to another device for running or can run the stored computer program by itself. The computer readable storage medium 20 may be a combination of a plurality of entities from a physical point of view, for example, a plurality of servers, a server plus a memory, or a memory plus a removable hard disk.
The above embodiments are merely examples and are not intended to limit the scope of the present disclosure, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present disclosure or those directly or indirectly applied to other related technical fields are intended to be included in the scope of the present disclosure.
Claims (10)
1. A method of data processing, the method comprising:
when the bit cutting mode of the current data is different from that of the previous data, performing bit cutting processing on the front N groups of data by adopting the bit cutting mode of the current data to obtain new bit-cut front N groups of data;
and transmitting the new truncated front N groups of data and the truncated current data to a receiving demodulation link, so that the receiving demodulation link demodulates the truncated current data based on the new truncated front N groups of data.
2. The data processing method of claim 1, wherein the transmitting the new truncated previous N groups of data and the truncated current data to the receiving demodulation link comprises:
and sequentially transmitting the first N groups of data of the new truncated bits and the current data of the truncated bits to the receiving demodulation link, so that when a filter in the receiving demodulation link processes the current data of the truncated bits, the buffer of the filter is updated to at least part of data in the first N groups of data of the new truncated bits.
3. The data processing method of claim 2, wherein N is greater than or equal to a maximum value of the amount of data stored in the buffer of all the filters.
4. The data processing method of claim 3, wherein N is greater than or equal to 3 and less than or equal to 5.
5. The data processing method according to claim 1, wherein when the bit-cutting mode of the current data is different from the bit-cutting mode of the previous data, performing bit-cutting processing on the previous N groups of data by using the bit-cutting mode of the current data comprises:
acquiring the current data;
performing bit truncation processing on the current data to obtain the truncated current data;
judging whether the bit cutting mode of the current data is the same as the bit cutting mode of the previous data or not;
and transmitting the truncated current data to the receiving demodulation link when the bit truncation mode of the current data is the same as the bit truncation mode of the previous data.
6. The data processing method of claim 1, wherein the receiving current data, thereafter comprises:
and updating the data in the backup into the first N groups of data, and reading the first N groups of data from the backup when the bit cutting mode of the current data is different from the bit cutting mode of the previous data.
7. The data processing method according to claim 1, wherein the current data and the first N groups of data are 24-bit IQ data, and the newly truncated first N groups of data and the truncated current data are 16-bit IQ data.
8. A data processing apparatus, characterized in that the apparatus comprises:
the bit cutting processing module is used for performing bit cutting processing on the front N groups of data by adopting the bit cutting mode of the current data when the bit cutting mode of the current data is different from the bit cutting mode of the previous data to obtain the newly-cut front N groups of data;
and the demodulation processing module is used for transmitting the front N groups of data of the new truncated bits and the current data of the truncated bits to the receiving demodulation link, and enabling the receiving demodulation link to demodulate the current data of the truncated bits based on the front N groups of data of the new truncated bits.
9. An electronic device, comprising a memory and a processor; the memory has stored therein a computer program for execution by the processor to implement the steps of the method according to any one of claims 1-7.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.
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