CN115022400A - Software digital front-end signal processing system - Google Patents
Software digital front-end signal processing system Download PDFInfo
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- CN115022400A CN115022400A CN202110754554.0A CN202110754554A CN115022400A CN 115022400 A CN115022400 A CN 115022400A CN 202110754554 A CN202110754554 A CN 202110754554A CN 115022400 A CN115022400 A CN 115022400A
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Abstract
The invention belongs to the technical field of computer signal processing, and discloses a software digital front-end signal processing system which comprises a PC (personal computer) end, a signal processing module and a signal processing module, wherein the PC end is used for downloading and operating a plurality of pieces of software, and the plurality of pieces of software, a plurality of digital front-end signals and a plurality of processed digital front-end signals can be displayed through the PC end; the input module comprises a plurality of receiving units, can simultaneously receive a plurality of digital front-end signals through the plurality of receiving units, and performs skip reading and parameter reading and writing on the digital front-end signals through the plurality of receiving units; the signal enhancement module detects a plurality of digital front-end signals; the system can uniformly process various digital front-end signals, so that software on the PC end can process the various digital front-end signals, and meanwhile, the signals can be enhanced through the signal enhancement module, so that the digital front-end signals received by the PC end can be normally analyzed and processed, the operation is simple, and the software is very convenient to manage.
Description
Technical Field
The invention belongs to the technical field of computer signal processing, and particularly relates to a software digital front-end signal processing system.
Background
The digital front-end signal is characterized in that the signal is digitized through a sensor link, the digital signal is transmitted to an upper computer through an optical fiber, the digital quantity is analyzed and calculated through the upper computer, the measured parameter information is displayed in the modes of numerical values, graphs, waveforms and the like, and after the digital front-end signal is digitized, software can analyze, modify, label and operate the digital front-end signal, meanwhile, the digital front-end signal is digitally processed without loss and interference of the signal transmission link, and the digital front-end signal is convenient for networking and intelligent application.
The existing digital front-end signal has no unified format, and has a plurality of format types for converting the digital, so that the software is very complicated in signal processing, too many in connection, complex in processing, and inconvenient in software management due to the fact that the converted digital needs to be checked, and the signals are not stable enough in connection and slow in transmission, so that the software digital front-end signal processing system is provided.
Disclosure of Invention
The present invention is directed to a software digital front-end signal processing system, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a software digital front-end signal processing system comprises,
the PC terminal is used for downloading and operating a plurality of software, and the plurality of software, the plurality of digital front-end signals and the plurality of processed digital front-end signals can be displayed through the PC terminal;
the input module comprises a plurality of receiving units, can simultaneously receive a plurality of digital front-end signals through the plurality of receiving units, and performs skip reading and parameter reading and writing on the digital front-end signals through the plurality of receiving units;
the signal enhancement module is used for detecting a plurality of digital front-end signals, and enhancing the digital front-end signals when the digital front-end signals are smaller than the strength of signals received by the PC end, so that the digital front-end signals received by the PC end can be normally analyzed and processed;
the upper computer is used for carrying out command output on the digital front-end signals read and written by the plurality of receiving units, interpreting the commands into corresponding time sequence signals by the lower computer according to the commands to directly control corresponding equipment after the commands are output to the lower computer, and reading equipment state data in a period of the lower computer, converting the equipment state data into digital signals and feeding the digital signals back to the upper computer;
the processing module is used for converting the digital front-end signals read by the upper computer and the lower computer into computer recognizable digital data, processing the digital front-end signals to convert the digital front-end signals into PC recognizable data by a carrier phase shifting method, so that the digital front-end signals are all expressed by binary, and meanwhile, the processing module comprises a computing unit and a pre-judging unit;
the calculation unit is used for calculating the similarity value between the digital front-end signal and the signal existing in the PC terminal, and the parameter data after the digital front-end signal is received in the plurality of receiving units are compared with the similarity value between the signal existing in the PC terminal;
the pre-judging unit judges according to the data of the calculating unit after comparing the similar values, judges the most similar signal of the existing signal and digital front end signal in the PC end, and regards the signal as the sample signal type of the digital front end signal;
the storage module is provided with a plurality of storage channels, respectively and correspondingly stores the digital front-end signals received by the plurality of receiving units, and stores the pre-judged digital front-end signals and the signals existing in the PC terminal in the same channel;
and the output module is used for outputting the digital front-end signal, and the digital front-end signal can be displayed through the display screen after being processed by the processing module and stored by the storage module.
Preferably, the PC end is electrically connected with the input module, and the PC end can operate and modify the input module; the PC end is electrically connected with the signal enhancement module, and meanwhile, the PC end can operate and modify the signal enhancement module; the PC end is electrically connected with the upper computer and the lower computer, and the PC end can operate and modify the upper computer and the lower computer; the PC end is electrically connected with the processing module, and the PC end can operate and modify the processing module; the PC end is electrically connected with the storage module, and the PC end can operate and modify the storage module; the PC end is electrically connected with the output module, and meanwhile, the PC end can operate and modify the output module.
Preferably, the signal enhancement module comprises an antenna, a duplexer, a low-noise amplifier, a down converter, a filter, an intermediate-frequency amplification circuit, an up converter and a power amplifier, and the antenna, the duplexer, the low-noise amplifier, the down converter, the filter, the intermediate-frequency amplification circuit, the up converter and the power amplifier are sequentially connected to form an amplification link, so that the effect of signal enhancement is achieved.
Preferably, when the upper computer sends a setting signal to the lower computer, the PC terminal monitors.
Preferably, the lower computer immediately sends a receiving instruction to the upper computer after receiving the digital front-end signal, and simultaneously resets the lower computer signal.
Preferably, the processing module can convert the digital front-end signal into audio data and transmit the audio data to the audio equipment through the data line, so that the digital front-end signal has multiple display modes.
Preferably, the processing module can also perform reverse operation, convert the audio data and the digitized data into a digital front-end signal, and perform remote signal transmission on the digital front-end signal.
Preferably, the storage module is provided with a first type storage group and a second type storage group, wherein the first type storage group has short data storage time, and the second type storage group copies the content of the first type storage group in a full disk mode in a period for preventing data loss.
Preferably, the output module can output data to a plurality of devices simultaneously.
Compared with the prior art, the invention has the beneficial effects that:
the system can uniformly process various digital front-end signals, so that software on the PC end can process various digital front-end signals, meanwhile, the signals can be enhanced through the signal enhancement module, the digital front-end signals received by the PC end can be normally analyzed and processed, the operation is simple, the software is very convenient to manage the signals, and the situations that the digital front-end signals are not stable enough in connection and slow in conveying are reduced.
The system can further improve the practicability of the system through the calculation unit and the pre-judgment unit, the calculation unit compares the parameter data after receiving the digital front-end signal with the existing signal in the PC terminal by the similarity value, the pre-judgment unit judges according to the data after comparing the similarity value of the calculation unit, and the existing signal in the PC terminal is judged to be the most similar to the digital front-end signal, so that the processing efficiency of the digital front-end signal is higher, and the time is greatly saved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the connection of various modules of the present invention;
FIG. 3 is a schematic diagram of a processing module of the present invention;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a technical solution: a software digital front-end signal processing system comprises,
the PC terminal is used for downloading and operating a plurality of software, and the plurality of software, the plurality of digital front-end signals and the plurality of processed digital front-end signals can be displayed through the PC terminal;
the input module comprises a plurality of receiving units, can simultaneously receive a plurality of digital front-end signals through the plurality of receiving units, and performs skip reading and parameter reading and writing on the digital front-end signals through the plurality of receiving units;
the signal enhancement module is used for detecting a plurality of digital front-end signals, and enhancing the digital front-end signals when the digital front-end signals are smaller than the strength of signals received by the PC end, so that the digital front-end signals received by the PC end can be normally analyzed and processed;
the upper computer is used for carrying out command output on the digital front-end signals read and written by the plurality of receiving units, interpreting the commands into corresponding time sequence signals by the lower computer according to the commands to directly control corresponding equipment after the commands are output to the lower computer, and reading equipment state data in a period of the lower computer, converting the equipment state data into digital signals and feeding the digital signals back to the upper computer;
the processing module is used for converting the digital front-end signals read by the upper computer and the lower computer into computer recognizable digital data, processing the plurality of digital front-end signals to convert the digital front-end signals into PC recognizable data by a carrier phase shifting method, so that the plurality of digital front-end signals are all expressed by binary system, and meanwhile, the processing module comprises a computing unit and a pre-judging unit;
the calculation unit is used for calculating the similarity value between the digital front-end signal and the signal existing in the PC terminal, and the parameter data after the digital front-end signal is received in the plurality of receiving units are compared with the similarity value between the signal existing in the PC terminal;
the pre-judging unit judges according to the data after the comparison of the similarity values of the calculating unit, judges the most similar signal of the existing signal and the digital front end signal in the PC end, and takes the signal as the sample signal type of the digital front end signal;
the storage module is provided with a plurality of storage channels, respectively and correspondingly stores the digital front-end signals received by the plurality of receiving units, and stores the pre-judged digital front-end signals and the signals existing in the PC terminal in the same channel;
and the output module is used for outputting the digital front-end signal, and when the digital front-end signal is processed by the processing module and stored by the storage module, the digital front-end signal can be displayed by the display screen.
In this embodiment, preferably, the PC terminal is electrically connected to the input module, and the PC terminal can operate and modify the input module; the PC end is electrically connected with the signal enhancement module, and meanwhile, the PC end can operate and modify the signal enhancement module; the PC end is electrically connected with the upper computer and the lower computer, and the PC end can operate and modify the upper computer and the lower computer; the PC end is electrically connected with the processing module, and the PC end can operate and modify the processing module; the PC end is electrically connected with the storage module, and meanwhile, the PC end can operate and modify the storage module; the PC end is electrically connected with the output module, and meanwhile, the PC end can operate and modify the output module.
In this embodiment, preferably, the signal enhancement module includes an antenna, a duplexer, a low-noise amplifier, a down converter, a filter, an intermediate-frequency amplification circuit, an up converter, and a power amplifier, and the antenna, the duplexer, the low-noise amplifier, the down converter, the filter, the intermediate-frequency amplification circuit, the up converter, and the power amplifier are sequentially connected to form an amplification link, thereby achieving the effect of signal enhancement.
In this embodiment, preferably, when the upper computer sends the setting signal to the lower computer, the PC side performs monitoring.
In this embodiment, preferably, the lower computer immediately sends a received instruction to the upper computer after receiving the digital front-end signal, and resets the lower computer signal at the same time.
In this embodiment, preferably, the processing module may convert the digital front-end signal into audio data, and transmit the audio data to the audio device through the data line, so that the digital front-end signal has multiple display modes.
In this embodiment, preferably, the processing module may further perform a reverse operation, convert the audio data and the digitized data into a digital front-end signal, and perform remote signal transmission on the digital front-end signal.
In this embodiment, preferably, the storage module is provided with a first type storage group and a second type storage group, where the first type storage group has a short data storage time, and the second type storage group copies the content of the first type storage group in a full disk manner in a period for preventing data loss.
In this embodiment, preferably, the output module may output data to a plurality of devices at the same time.
The working principle and the using process of the invention are as follows: operating the PC end, operating the input module through the PC end to enable the plurality of digital front end signals to be subjected to skip reading and parameter reading and writing through the input module, then detecting the plurality of digital front end signals through the signal enhancement module, strengthen the weak signal strength of the digital front end to ensure that the digital front end signal received by the PC end can be normally analyzed and processed, then the digital front-end signals read by the upper computer and the lower computer are converted into digital data which can be identified by the computer through the processing module, the processing module processes a plurality of digital front-end signals, the digital front-end signals are converted into identifiable data at the PC end by a method of phase shifting the carrier wave, so that a plurality of digital front-end signals all adopt binary expression, the digital front-end signal can be identified and processed through software on the PC terminal, and then can be output after being stored through the storage module.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only for illustrating the technical solution of the present invention and not for limiting, and other modifications or equivalent substitutions made by the technical solution of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.
Claims (9)
1. A software digital front-end signal processing system, characterized by: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the PC terminal is used for downloading and operating a plurality of pieces of software, and the plurality of pieces of software, the plurality of digital front-end signals and the plurality of processed digital front-end signals can be displayed through the PC terminal;
the input module comprises a plurality of receiving units, can simultaneously receive a plurality of digital front-end signals through the plurality of receiving units, and performs skip reading and parameter reading and writing on the digital front-end signals through the plurality of receiving units;
the signal enhancement module is used for detecting a plurality of digital front-end signals, and enhancing the digital front-end signals when the digital front-end signals are smaller than the strength of signals received by the PC end, so that the digital front-end signals received by the PC end can be normally analyzed and processed;
the upper computer is used for carrying out command output on the digital front-end signals read and written by the plurality of receiving units, interpreting the commands into corresponding time sequence signals according to the commands by the lower computer after the commands are output to the lower computer, directly controlling corresponding equipment, reading equipment state data in a period of the lower computer, converting the equipment state data into digital signals and feeding the digital signals back to the upper computer;
the processing module is used for converting the digital front-end signals read by the upper computer and the lower computer into computer recognizable digital data, processing the digital front-end signals to convert the digital front-end signals into PC recognizable data by a carrier phase shifting method, so that the digital front-end signals are all expressed by binary, and meanwhile, the processing module comprises a computing unit and a pre-judging unit;
the calculation unit is used for calculating the similarity value between the digital front-end signal and the signal existing in the PC terminal, and the parameter data after the digital front-end signal is received in the plurality of receiving units are compared with the similarity value between the signal existing in the PC terminal;
the pre-judging unit judges according to the data of the calculating unit after comparing the similar values, judges the most similar signal of the existing signal and digital front end signal in the PC end, and regards the signal as the sample signal type of the digital front end signal;
the storage module is provided with a plurality of storage channels, respectively and correspondingly stores the digital front-end signals received by the plurality of receiving units, and stores the pre-judged digital front-end signals and the signals existing in the PC terminal in the same channel;
and the output module is used for outputting the digital front-end signal, and the digital front-end signal can be displayed through the display screen after being processed by the processing module and stored by the storage module.
2. The software digital front-end signal processing system according to claim 1, wherein: the PC end is electrically connected with the input module, and the PC end can operate and modify the input module; the PC end is electrically connected with the signal enhancement module, and meanwhile, the PC end can operate and modify the signal enhancement module; the PC end is electrically connected with the upper computer and the lower computer, and the PC end can operate and modify the upper computer and the lower computer; the PC end is electrically connected with the processing module, and the PC end can operate and modify the processing module; the PC end is electrically connected with the storage module, and the PC end can operate and modify the storage module; the PC end is electrically connected with the output module, and meanwhile, the PC end can operate and modify the output module.
3. The software defined digital front-end signal processing system of claim 1, wherein: the signal enhancement module comprises an antenna, a duplexer, a low-noise amplifier, a down converter, a filter, an intermediate-frequency amplification circuit, an up converter and a power amplifier, and the antenna, the duplexer, the low-noise amplifier, the down converter, the filter, the intermediate-frequency amplification circuit, the up converter and the power amplifier are sequentially connected to form an amplification link, so that the effect of signal enhancement is achieved.
4. The software defined digital front-end signal processing system of claim 1, wherein: when the upper computer sends a setting signal to the lower computer, the PC end monitors.
5. The software digital front-end signal processing system according to claim 4, wherein: and immediately sending a receiving instruction to the upper computer after the lower computer receives the digital front-end signal, and resetting the lower computer signal.
6. The software defined digital front-end signal processing system of claim 1, wherein: the processing module can convert the digital front-end signal into audio data and transmit the audio data to the audio equipment through the data line, so that the digital front-end signal has multiple display modes.
7. The software defined digital front-end signal processing system of claim 6, wherein: the processing module can also perform reverse operation, convert the audio data and the digital data into digital front-end signals and transmit the digital front-end signals to the remote terminal.
8. The software digital front-end signal processing system according to claim 1, wherein: the storage module is provided with a first type storage group and a second type storage group, wherein the first type storage group has short data storage time, and the second type storage group copies the content of the first type storage group in a full disk mode in a period for preventing data loss.
9. The software defined digital front-end signal processing system of claim 1, wherein: the output module can output data to a plurality of devices simultaneously.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100124257A1 (en) * | 2007-04-25 | 2010-05-20 | Mazlaini Yahya | Tranceiver front end for software radio system |
| CN103999417A (en) * | 2011-10-27 | 2014-08-20 | Lsi公司 | Software digital front end (softDFE) signal processing |
| US20140359396A1 (en) * | 2013-05-31 | 2014-12-04 | International Business Machines Corporation | Iterative data storage read channel architecture |
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- 2021-06-28 CN CN202110754554.0A patent/CN115022400B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100124257A1 (en) * | 2007-04-25 | 2010-05-20 | Mazlaini Yahya | Tranceiver front end for software radio system |
| CN103999417A (en) * | 2011-10-27 | 2014-08-20 | Lsi公司 | Software digital front end (softDFE) signal processing |
| US20140359396A1 (en) * | 2013-05-31 | 2014-12-04 | International Business Machines Corporation | Iterative data storage read channel architecture |
Non-Patent Citations (1)
| Title |
|---|
| 杨春顺;: "数字信号处理技术在短波收信设备中的应用", 舰船电子工程, no. 06 * |
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Effective date of registration: 20231204 Address after: No. 601, 6th Floor, Building B, Building 3, Innovation Park, National University Science and Technology Park (East Zone), No. 289 West Third Ring Road, High tech Zone, Zhengzhou City, Henan Province, 450000 Patentee after: Henan Kejia Innovation Technology Group Co.,Ltd. Address before: 210012 South 16th Floor, Building D2, No. 32, Dazhou Road, Yuhuatai District, Nanjing City, Jiangsu Province Patentee before: Nanjing Peak Data Service Co.,Ltd. |