CN114915527A - Hybrid modulation signal synthesis method based on software reconfiguration and generator - Google Patents
Hybrid modulation signal synthesis method based on software reconfiguration and generator Download PDFInfo
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Abstract
The invention discloses a mixed modulation signal synthesis method based on software reconfiguration and a generator, wherein the method comprises the steps of obtaining a generating function of each modulation signal; respectively packaging the generating function of each modulation signal into a visual component; according to the generation principle of each modulation signal, selecting corresponding components from all packaged components, and combining the selected components into a subgraph corresponding to the modulation signal; acquiring modulation parameters of a target mixed modulation signal, selecting a target subgraph from all subgraphs according to the modulation parameters, and generating target mixed modulation signal data according to the target subgraph and the modulation parameters; and loading the target mixed modulation signal data through the general software radio peripheral equipment to generate a target mixed modulation signal. The invention is based on software reconfigurable technology, can reduce hardware cost, shorten research and development period, has strong maintainability, high flexibility and very high reconfigurability, can generate various mixed modulation signals and solves the problem of single type of the mixed modulation signals.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a hybrid modulation signal synthesis method and a generator based on software reconfiguration.
Background
The mixed modulation adopts two or more relatively independent debugging modes, two or more groups of information are modulated on the same signal carrier to carry out independent transmission without intersymbol interference, the two or more groups of information are relatively independent and can be collected at a receiving end in real time, and the two or more groups of information are respectively demodulated by adopting respective modulation modes. The mixed modulation mode can save signal bandwidth, different signal modulation modes can effectively resist the influence of nonlinear effect in transmission, and the signal anti-interference capability can be improved.
Various mixed modulation signal generators are used in the fields of wireless communication and signal detection, and a common mixed modulation signal synthesis technology is generally implemented by using hardware circuits, and the signal type, the synthesis number and the signal bandwidth of the mixed modulation signal synthesis technology depend on hardware equipment. The mixed modulation signal generator is realized based on a hardware circuit, the types of modulation signals in the generated mixed modulation signals cannot be increased, decreased and switched, the number of the modulation signals cannot be increased, and the bandwidth of the modulation signals is limited to the hardware performance.
The traditional hardware circuit generates the mixed modulation signal and has the problems of single type, insufficient flexibility, poor reconfigurability and high hardware cost.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a hybrid modulation signal synthesis method and a generator based on software reconfiguration, which can solve the problems of single type, insufficient flexibility, poor reconfigurability and high hardware cost.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a hybrid modulation signal synthesis method based on software reconfiguration, including the steps of:
acquiring a generating function of each modulation signal;
respectively packaging the generating function of each modulation signal into a visualized component;
according to the generation principle of each modulation signal, selecting corresponding components from all packaged components, and combining the selected components into a subgraph corresponding to the modulation signal;
acquiring modulation parameters of a target mixed modulation signal, selecting a target subgraph from all subgraphs according to the modulation parameters, and generating target mixed modulation signal data according to the target subgraph and the modulation parameters;
and loading the target mixed modulation signal data through a general software radio peripheral to generate the target mixed modulation signal.
Compared with the prior art, the first aspect of the invention has the following beneficial effects:
the method comprises the steps of obtaining a generating function of each modulation signal; the generating functions of each modulation signal are respectively packaged into visual components, the generating functions are packaged into the visual components, a software reconfigurable technology is adopted, hardware is not needed, hardware cost is reduced, and the software reconfigurable technology is based, so that the research and development period is shortened, the maintainability is strong, and the flexibility is high; corresponding components are selected from all packaged components according to the generation principle of each modulation signal, the selected components are combined into a subgraph corresponding to the modulation signal, and the subgraph can be reconstructed continuously through the components, so that the reconstruction is high; the method comprises the steps of obtaining modulation parameters of a target mixed modulation signal, selecting a target subgraph from all subgraphs according to the modulation parameters, and generating target mixed modulation signal data according to the target subgraph and the modulation parameters of the target mixed modulation signal; the target mixed modulation signal data can be loaded by the general software radio peripheral equipment to generate the target mixed modulation signal, so that the method can generate the target mixed modulation signal data according to the target subgraph and the modulation parameter of the target mixed modulation signal, the target subgraph can be any subgraph which needs to be generated, and the target mixed modulation signal data can be any target mixed modulation signal data which needs to be generated.
According to some embodiments of the invention, further comprising the step of:
and converting the baseband digital signal of the target mixed modulation signal into an analog signal through a radio frequency signal transmitting module of the general software radio peripheral equipment, and transmitting the analog signal through an antenna.
According to some embodiments of the present invention, the rf signal transmitting module converts the baseband digital signal of the target mixed modulation signal into an analog signal through a digital up-conversion, a digital-to-analog converter and a filter.
According to some embodiments of the present invention, the selecting a target sub-graph from all sub-graphs according to the modulation parameter, and generating target mixed modulation signal data according to the target sub-graph and the modulation parameter, includes:
selecting a target subgraph corresponding to the modulation signal in the target mixed modulation signal from all subgraphs according to the type of the modulation signal in the target mixed modulation signal, the total signal bandwidth of the target mixed modulation signal and the number of the modulation signals in the target mixed modulation signal;
generating modulation signal waveform data according to the target subgraph corresponding to the modulation signal according to the frequency offset of the modulation signal in the target mixed modulation signal and the signal bandwidth of the modulation signal in the target mixed modulation signal;
and based on the modulation signal waveform data, dynamically adding modulation signal waveform data of each modulation signal in the target mixed modulation signal according to the transmitting frequency of the target mixed modulation signal and the transmitting gain of the target mixed modulation signal to generate target mixed modulation signal data.
According to some embodiments of the invention, the modulated signal waveform data is generated by three conditions:
the first condition comprises that the frequency offset of the modulation signal cannot exceed half of the total signal bandwidth of the target mixed modulation signal, and the bandwidth of the modulation signal cannot exceed the total signal bandwidth of the target mixed modulation signal;
the second condition includes that if the target mixed modulation signal contains two or more modulation signals with the same or different types, the frequency deviation values of the modulation signals with different types are different and the first condition is required to be met;
the third condition includes that if the target mixed modulation signal contains two or more than two modulation signal waveforms of the same or different types, the signal bandwidths of the modulation signals of the different types are independent according to a frequency offset value and cannot be mutually covered, and the accumulated value of the signal bandwidths of the modulation signals of the different types cannot be larger than the total signal bandwidth of the target mixed modulation signal.
According to some embodiments of the invention, the component for separately packaging the generation function of each of the modulated signals into a visualization comprises:
and respectively packaging the generating function of each modulation signal into a visual component in a componentization and modularization mode.
In a second aspect, an embodiment of the present invention provides a hybrid modulation signal generator reconfigurable based on software, including:
the system comprises an industrial personal computer, a software radio system architecture integrated development platform, a modulation signal data acquisition module and a modulation signal data display module; wherein the content of the first and second substances,
the generating function acquiring module is used for acquiring a generating function of each modulation signal; the component module is used for respectively packaging the generating function of each modulation signal into a visual component in a componentization and modularization mode; the subgraph module is used for selecting corresponding components from all packaged components according to the generation principle of each modulation signal and combining the selected components into a subgraph corresponding to the modulation signal; the human-computer interface operation and display module is used for setting the modulation parameters of the target mixed modulation signal and transmitting the modulation parameters to the mixed modulation signal data generation module; the mixed modulation signal data generation module is used for acquiring modulation parameters of the target mixed modulation signal, selecting a target subgraph from all subgraphs according to the target mixed modulation signal, and generating target mixed modulation signal data according to the target subgraph and the modulation parameters of the target mixed modulation signal;
and the universal software radio peripheral is in communication connection with the industrial personal computer and is used for loading the target mixed modulation signal data and generating the target mixed modulation signal.
Compared with the prior art, the second aspect of the invention has the following beneficial effects:
the hybrid modulation signal generator integrates a software radio system architecture development platform through an industrial personal computer, and the software radio system architecture development platform acquires a generation function of each modulation signal through a generation function acquisition module; the generating functions of each modulation signal are respectively packaged into visual components through the component modules, the generating functions are packaged into the visual components through the component modules, a software reconfigurable technology is adopted, hardware is not needed, the hardware cost is reduced, the development period is shortened based on the software reconfigurable technology, the maintainability is strong, and the flexibility is high; and the sub-graph module selects corresponding components from all packaged components according to the generation principle of each modulation signal, the selected components are combined into a sub-graph corresponding to the modulation signal, and the sub-graph can be reconstructed continuously through the components, so that the reconstruction performance is high; the mixed modulation signal generator of the invention sets the modulation parameter of the target mixed modulation signal through the man-machine interface operation and display module, and transmits the modulation parameter to the mixed modulation signal data generation module, the modulation parameter of the target mixed modulation signal can be conveniently set through the man-machine interface operation and display module, the modulation parameter of the target mixed modulation signal does not need to be changed through a software reconfigurable technology, the operation is convenient, and the time cost is saved; the mixed modulation signal generator also acquires the modulation parameter of the target mixed modulation signal through a mixed modulation signal data generation module, selects a target subgraph from all subgraphs according to the modulation parameter, and generates target mixed modulation signal data according to the target subgraph and the modulation parameter of the target mixed modulation signal; the target mixed modulation signal data can be loaded through the general software radio peripheral equipment to generate a target mixed modulation signal, so that the mixed modulation signal generator can generate the target mixed modulation signal data according to a target subgraph and the modulation parameters of the target mixed modulation signal, the target subgraph can be any subgraph to be generated, and the target mixed modulation signal data can be any target mixed modulation signal data to be generated.
According to some embodiments of the present invention, the general software radio peripheral includes a radio frequency signal transmitting module, the radio frequency signal transmitting module is communicatively connected to an antenna, and the radio frequency signal transmitting module acquires the target mixed modulation signal, converts a baseband digital signal of the target mixed modulation signal into an analog signal, and transmits the analog signal through the antenna.
According to some embodiments of the invention, the industrial personal computer further comprises a data storage module for storing the modulation parameters, the components, the subgraph and the target mixed modulation signal data.
According to some embodiments of the present invention, the modulation parameter includes a type of the modulation signal in the target mixed modulation signal, a transmission frequency of the target mixed modulation signal, a transmission gain of the target mixed modulation signal, a signal total bandwidth of the target mixed modulation signal, a number of modulation signals in the target mixed modulation signal, a frequency offset of the modulation signal in the target mixed modulation signal, and a bandwidth of the modulation signal in the target mixed modulation signal.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart of a hybrid modulation signal synthesis method based on software reconfiguration according to an embodiment of the present invention;
fig. 2 is a block diagram of a hybrid modulation signal generator that is reconfigurable based on software according to an embodiment of the present invention;
fig. 3 is a block diagram of an integrated software radio architecture development platform according to an embodiment of the present invention.
Detailed Description
The technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present disclosure without making any creative effort, shall fall within the protection scope of the present disclosure. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other. In addition, the purpose of the drawings is to graphically supplement the description in the written portion of the specification so that a person can intuitively and visually understand each technical feature and the whole technical solution of the present disclosure, but it should not be construed as limiting the scope of the present disclosure.
In the description of the invention, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, unless otherwise specifically limited, terms such as set, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention by combining the specific contents of the technical solutions.
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.
The hybrid modulation signal generator is used in the fields of wireless communication and signal detection, and a common hybrid modulation signal synthesis technology is generally implemented by using hardware circuits, and the signal type, the synthesis number and the signal bandwidth of the hybrid modulation signal generator depend on hardware equipment. The mixed modulation signal generator is realized based on a hardware circuit, the types of modulation signals in the generated mixed modulation signals cannot be increased, decreased and switched, the number of the modulation signals cannot be increased, and the bandwidth of the modulation signals is limited to the hardware performance.
The traditional hardware circuit generates the mixed modulation signal and has the problems of single type, insufficient flexibility, poor reconfigurability and high hardware cost.
In order to solve the above problems, the present invention obtains the generation function of each modulation signal; the generating functions of each modulation signal are respectively packaged into visual components, the generating functions are packaged into the visual components, a software reconfigurable technology is adopted, hardware is not needed, hardware cost is reduced, and the software reconfigurable technology is based, so that the research and development period is shortened, the maintainability is strong, and the flexibility is high; corresponding components are selected from all packaged components according to the generation principle of each modulation signal, the selected components are combined into a subgraph corresponding to the modulation signal, and the subgraph can be reconstructed continuously through the components, so that the reconstruction is high; the method comprises the steps of obtaining modulation parameters of a target mixed modulation signal, selecting a target subgraph from all subgraphs according to the modulation parameters, and generating target mixed modulation signal data according to the target subgraph and the modulation parameters of the target mixed modulation signal; the target mixed modulation signal data can be loaded by the general software radio peripheral equipment to generate the target mixed modulation signal, so that the target mixed modulation signal data can be generated according to the modulation parameters of the target subgraph and the target mixed modulation signal, the target subgraph can be any subgraph which needs to be generated, and the target mixed modulation signal data can be any target mixed modulation signal data which needs to be generated.
Referring to fig. 1, an embodiment of the present invention provides a hybrid modulation signal synthesis method based on software reconfiguration, including the steps of:
s100, acquiring a generating function of each modulation signal;
specifically, each modulation signal has a corresponding communication algorithm function, and the communication algorithm function is implemented through C + + or python language programming to obtain a generation function of each modulation signal, it should be noted that the communication algorithm function of each modulation signal is the prior art, and is not described in detail herein.
Step S200, respectively packaging the generating function of each modulation signal into a visual component;
specifically, the generating function of each modulation signal is respectively packaged into a visual component in a componentization and modularization mode. It should be noted that the manner of modularity and modularity is prior art and will not be described in detail here.
S300, selecting corresponding components from all packaged components according to the generation principle of each modulation signal, and combining the selected components into a subgraph corresponding to the modulation signal;
specifically, according to the generation principle of each modulation signal, corresponding components are selected from all packaged components, and the selected components are combined into a subgraph corresponding to the modulation signal.
S400, obtaining a modulation parameter of the target mixed modulation signal, selecting a target subgraph from all subgraphs according to the modulation parameter, and generating target mixed modulation signal data according to the target subgraph and the modulation parameter;
specifically, a target subgraph corresponding to the modulation signal in the target mixed modulation signal is selected from all subgraphs according to the type of the modulation signal in the target mixed modulation signal, the total signal bandwidth of the target mixed modulation signal and the number of the modulation signals in the target mixed modulation signal.
Generating modulation signal waveform data according to a target subgraph corresponding to a modulation signal according to the frequency offset of the modulation signal in the target mixed modulation signal and the signal bandwidth of the modulation signal in the target mixed modulation signal, and generating the modulation signal waveform data, wherein three conditions are required to be met:
the first condition includes that the frequency offset of the modulation signal cannot exceed half of the total signal bandwidth of the target mixed modulation signal, and the bandwidth of the modulation signal cannot exceed the total signal bandwidth of the target mixed modulation signal;
the second condition includes that if the target mixed modulation signal contains two or more modulation signals with the same or different types, the frequency deviation values of the modulation signals with different types are different and the first condition is required to be satisfied;
the third condition includes that if the target mixed modulation signal contains two or more than two modulation signal waveforms of the same or different types, the signal bandwidths of the modulation signals of different types should be kept independent according to the frequency offset value and cannot be mutually covered, and the accumulated value of the signal bandwidths of the modulation signals of different types cannot be larger than the total signal bandwidth of the target mixed modulation signal.
And based on the modulated signal waveform data, dynamically adding the modulated signal waveform data of each modulated signal in the target mixed modulated signal according to the transmitting frequency of the target mixed modulated signal and the transmitting gain of the target mixed modulated signal to generate target mixed modulated signal data.
And S500, loading target mixed modulation signal data through a general software radio peripheral to generate a target mixed modulation signal.
Specifically, after the general software radio peripheral loads target mixed modulation signal data, a target mixed modulation signal is generated; the general software radio peripheral comprises a radio frequency signal transmitting module, wherein the radio frequency signal transmitting module converts a baseband digital signal of a target mixed modulation signal into an analog signal through digital up-conversion, a digital-to-analog converter and a filter and transmits the analog signal through an antenna.
The embodiment obtains the generating function of each modulation signal; the generating functions of each modulation signal are respectively packaged into visual components, the generating functions are packaged into the visual components, a software reconfigurable technology is adopted, hardware is not needed, hardware cost is reduced, and the software reconfigurable technology is based, so that the research and development period is shortened, the maintainability is strong, and the flexibility is high; corresponding components are selected from all packaged components according to the generation principle of each modulation signal, the selected components are combined into a subgraph corresponding to the modulation signal, and the subgraph can be reconstructed continuously through the components, so that the reconstruction is high; in the embodiment, a target subgraph is selected from all subgraphs according to modulation parameters by obtaining the modulation parameters of a target mixed modulation signal, and target mixed modulation signal data is generated according to the target subgraph and the modulation parameters of the target mixed modulation signal; the target mixed modulation signal data can be loaded by the general software radio peripheral equipment to generate the target mixed modulation signal, so that the embodiment can generate the target mixed modulation signal data according to the target subgraph and the modulation parameter of the target mixed modulation signal, the target subgraph can be any subgraph which needs to be generated, and the target mixed modulation signal data can be any target mixed modulation signal data which needs to be generated.
To facilitate understanding by those skilled in the art, the following sets of preferred embodiments are provided:
the present embodiment assumes that it is necessary to generate target mixed modulation signal data including four modulation signals of AM, FM, BPSK, and QPSK, where the total signal bandwidth of the target mixed modulation signal is 10MHz, the transmission frequency of the target mixed modulation signal is 340MHz, the transmission gain of the target mixed modulation signal is 30dB, and the signal coverage frequency range is 335MHz to 345 MHz.
Firstly, obtaining generation functions of AM, FM, BPSK and QPSK four modulation signals, and respectively packaging the generation functions of AM, FM, BPSK and QPSK four modulation signals into a visual component; according to the generation principles of the AM, FM, BPSK and QPSK four modulation signals, respectively selecting components corresponding to the AM modulation signal from all packaged components, and combining the selected components into a subgraph corresponding to the AM modulation signal; selecting components corresponding to the FM modulation signals, and combining the selected components into subgraphs corresponding to the FM modulation signals; selecting components corresponding to the BPSK modulation signal, and combining the selected components into subgraphs corresponding to the BPSK modulation signal; selecting components corresponding to the QPSK modulation signals, and combining the selected components into a subgraph corresponding to the QPSK modulation signals. It should be noted that there may be multiple components for each modulated signal.
Secondly, setting modulation parameters of the target mixed modulation signal on the human-computer interface and the display module, wherein the modulation parameters comprise the emission frequency of the target mixed modulation signal of 340MHz, the emission gain of the target mixed modulation signal of 30dB, the total signal bandwidth of the target mixed modulation signal of 10MHz and the number of modulation signals in the target mixed modulation signal of 4, so that the emission frequency of the target mixed modulation signal of 340MHz, the emission gain of the target mixed modulation signal of 30dB, the total signal bandwidth of the target mixed modulation signal of 10MHz and the number of modulation signals in the target mixed modulation signal of 4 are input on the human-computer interface and the display module, and at this time, 4 modulation signal selection frames can automatically appear on the human-computer interface and the display module. Initially, the 4 modulation signals are all defined as AM modulation signals, the signal bandwidth is 100KHz, the frequency offset is 1000KHz, the frequency offset of the target mixed modulation signal is 100KHz, the center frequency of the AM modulation signal included in the target mixed modulation signal is 339MHz, and the signal bandwidth is 100KHz, relative to the emission frequency of the setting signal of 340 MHz. If both are default AM modulated signals, the signal data will be overwritten, with only one AM modulated signal.
Therefore, when the rest 3 modulation signals are respectively selected as FM modulation signals in the man-machine interface and the display module, the bandwidth of the automatically appeared signals in the man-machine interface and the display module is 100KHz, and the frequency offset is-1000 Khz; when the modulation signal is selected to be a BPSK modulation signal, the bandwidth of the automatically appeared signal in the human-computer interface and the display module is 1000KHz, and the frequency offset is-2000 Khz; when the modulation signal is selected as a QPSK modulation signal, the bandwidth of the automatically appeared signal in the human-computer interface and the display module is 1000KHz, and the frequency offset is 2000 Khz.
Then, clicking an operation key in a human-computer interface and a display module, and transmitting the modulation parameters to a mixed modulation signal data generation module by the human-computer interface and the display module; the mixed modulation signal data generation module acquires modulation parameters of a target mixed modulation signal, selects a target subgraph from all subgraphs according to the target mixed modulation signal, namely subgraphs of four modulation signals of AM, FM, BPSK and QPSK, and generates target mixed modulation signal data according to the target subgraph and the modulation parameters of the target mixed modulation signal, and specifically comprises the following steps:
the mixed modulation signal data generation module selects a target subgraph corresponding to the modulation signal in the target mixed modulation signal from all subgraphs according to the type of the modulation signal in the target mixed modulation signal (namely AM, FM, BPSK and QPSK four types of modulation signals), the total signal bandwidth of the target mixed modulation signal and the number of the modulation signals in the target mixed modulation signal;
the mixed modulation signal data generation module generates modulation signal waveform data according to a target subgraph corresponding to a modulation signal according to the frequency offset of the modulation signal in the target mixed modulation signal and the signal bandwidth of the modulation signal in the target mixed modulation signal, and the generated modulation signal waveform data needs to meet the following three conditions:
the first condition includes that the frequency offset of the modulation signal cannot exceed half of the total signal bandwidth of the target mixed modulation signal, and the bandwidth of the modulation signal cannot exceed the total signal bandwidth of the target mixed modulation signal;
the second condition includes that if the target mixed modulation signal contains two or more modulation signals with the same or different types, the frequency deviation values of the modulation signals with different types are different and the first condition is required to be satisfied;
the third condition includes that if the target mixed modulation signal contains two or more than two modulation signal waveforms with the same or different types, the signal bandwidths of the modulation signals with different types are independent and cannot be mutually covered according to the frequency deviation value, and the accumulated value of the signal bandwidths of the modulation signals with different types cannot be larger than the total signal bandwidth of the target mixed modulation signal;
therefore, the signal bandwidth of the AM modulation signal is 100KHz, and the frequency offset is 1000 Khz; the signal bandwidth of the FM modulation signal is 100KHz, and the frequency offset is-1000 Khz; the signal bandwidth of the BPSK modulation signal is 1000KHz, and the frequency offset is-2000 Khz; the signal bandwidth of the QPSK modulated signal is 1000KHz, the frequency offset is 2000KHz, and the modulated signal waveform data of each modulated signal can be generated by satisfying the above three conditions.
And based on the modulated signal waveform data, dynamically adding the modulated signal waveform data of each modulated signal in the target mixed modulated signal according to the transmitting frequency of the target mixed modulated signal and the transmitting gain of the target mixed modulated signal to generate target mixed modulated signal data.
Finally, loading target mixed modulation signal data through a general software radio peripheral connected with an industrial personal computer in a communication manner to generate a target mixed modulation signal; the general software radio peripheral comprises a radio frequency signal transmitting module, wherein the radio frequency signal transmitting module is in communication connection with an antenna, the radio frequency signal transmitting module acquires a target mixed modulation signal, a baseband digital signal of the target mixed modulation signal is converted into an analog signal through a digital up-conversion, a digital-to-analog converter and a filter, and the analog signal is transmitted through the antenna.
Referring to fig. 2 to 3, an embodiment of the present invention provides a hybrid modulation signal generator reconfigurable based on software, including:
the system comprises an industrial personal computer 100, a component module 102, a sub-graph module 103, a human-computer interface operation and display module 104 and a mixed modulation signal data generation module 105, wherein the industrial personal computer 100 is used for an integrated software radio system architecture development platform which is provided with the generation function acquisition module 101, the component module 102, the sub-graph module 103, the human-computer interface operation and display module; wherein the content of the first and second substances,
a generating function acquiring module 101, configured to acquire a generating function of each modulation signal; the component module 102 is configured to package the generating function of each modulation signal into a visualized component in a componentization and modularization manner; a sub-graph module 103, configured to select corresponding components from all packaged components according to a generation principle of each modulation signal, and combine the selected components into a sub-graph corresponding to the modulation signal; a human-computer interface operation and display module 104, configured to set a modulation parameter of the target mixed modulation signal, and transmit the modulation parameter to a mixed modulation signal data generation module 105; the mixed modulation signal data generation module 105 is configured to acquire a modulation parameter of a target mixed modulation signal, select a target subgraph from all subgraphs according to the target mixed modulation signal, and generate target mixed modulation signal data according to the target subgraph and the modulation parameter of the target mixed modulation signal;
and the general software radio peripheral 200 is in communication connection with the industrial personal computer and is used for loading target mixed modulation signal data and generating a target mixed modulation signal.
According to some embodiments of the invention, the universal software radio peripheral comprises a radio frequency signal transmitting module, the radio frequency signal transmitting module is in communication connection with an antenna, and the radio frequency signal transmitting module acquires a target mixed modulation signal, converts a baseband digital signal of the target mixed modulation signal into an analog signal, and transmits the analog signal through the antenna.
In some embodiments of the invention, the industrial personal computer further comprises a data storage module for storing the modulation parameters, the components, the subgraphs and the target mixed modulation signal data.
Some embodiments of the present invention, the modulation parameters include a type of a modulation signal in the target mixed modulation signal, a transmission frequency of the target mixed modulation signal, a transmission gain of the target mixed modulation signal, a signal total bandwidth of the target mixed modulation signal, a number of modulation signals in the target mixed modulation signal, a frequency offset of a modulation signal in the target mixed modulation signal, and a bandwidth of a modulation signal in the target mixed modulation signal.
It should be noted that a hybrid modulation signal generator based on software reconfiguration in this embodiment is based on the same inventive concept as the hybrid modulation signal synthesis method based on software reconfiguration described above, and therefore, the corresponding contents in the hybrid modulation signal synthesis method embodiment are also applicable to the hybrid modulation signal generator embodiment, and will not be described in detail herein.
In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means 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 present 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.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.
Claims (10)
1. A hybrid modulation signal synthesis method based on software reconstruction is characterized by comprising the following steps:
acquiring a generating function of each modulation signal;
respectively packaging the generating function of each modulation signal into a visualized component;
according to the generation principle of each modulation signal, selecting corresponding components from all packaged components, and combining the selected components into a subgraph corresponding to the modulation signal;
acquiring modulation parameters of a target mixed modulation signal, selecting a target subgraph from all subgraphs according to the modulation parameters, and generating target mixed modulation signal data according to the target subgraph and the modulation parameters;
and loading the target mixed modulation signal data through a general software radio peripheral to generate the target mixed modulation signal.
2. The method for synthesizing the mixed modulation signal based on the software reconfigurability of claim 1, characterized by further comprising the steps of:
and converting the baseband digital signal of the target mixed modulation signal into an analog signal through a radio frequency signal transmitting module of the general software radio peripheral equipment, and transmitting the analog signal through an antenna.
3. The hybrid modulation signal synthesis method based on software reconfiguration of claim 2, wherein the radio frequency signal transmitting module converts the baseband digital signal of the target hybrid modulation signal into an analog signal through digital up-conversion, a digital-to-analog converter and a filter.
4. The method according to claim 3, wherein the selecting a target subgraph from all subgraphs according to the modulation parameters and generating target mixed modulation signal data according to the target subgraph and the modulation parameters comprises:
selecting a target subgraph corresponding to the modulation signal in the target mixed modulation signal from all subgraphs according to the type of the modulation signal in the target mixed modulation signal, the total signal bandwidth of the target mixed modulation signal and the number of the modulation signals in the target mixed modulation signal;
generating modulation signal waveform data according to the target subgraph corresponding to the modulation signal according to the frequency deviation of the modulation signal in the target mixed modulation signal and the signal bandwidth of the modulation signal in the target mixed modulation signal;
and based on the modulation signal waveform data, dynamically adding modulation signal waveform data of each modulation signal in the target mixed modulation signal according to the transmitting frequency of the target mixed modulation signal and the transmitting gain of the target mixed modulation signal to generate target mixed modulation signal data.
5. The hybrid modulation signal synthesis method based on software reconfiguration according to claim 4, characterized in that the modulation signal waveform data is generated by three conditions:
the first condition comprises that the frequency offset of the modulation signal cannot exceed half of the total signal bandwidth of the target mixed modulation signal, and the bandwidth of the modulation signal cannot exceed the total signal bandwidth of the target mixed modulation signal;
the second condition includes that if the target mixed modulation signal contains two or more modulation signals with the same or different types, the frequency deviation values of the modulation signals with different types are different and the first condition is required to be met;
the third condition includes that if the target mixed modulation signal contains two or more than two modulation signal waveforms of the same or different types, the signal bandwidths of the modulation signals of the different types are independent according to a frequency offset value and cannot be mutually covered, and the accumulated value of the signal bandwidths of the modulation signals of the different types cannot be larger than the total signal bandwidth of the target mixed modulation signal.
6. The method according to claim 5, wherein the step of separately packing the generation function of each modulation signal into a visualized component comprises:
and respectively packaging the generating function of each modulation signal into a visualized component in a componentization and modularization mode.
7. A software reconfigurable hybrid modulated signal generator, comprising:
the system comprises an industrial personal computer, a software radio system architecture integrated development platform, a modulation signal data acquisition module and a modulation signal data display module; wherein the content of the first and second substances,
the generating function acquiring module is used for acquiring a generating function of each modulation signal; the component module is used for respectively packaging the generating function of each modulation signal into a visual component in a componentization and modularization mode; the subgraph module is used for selecting corresponding components from all packaged components according to the generation principle of each modulation signal and combining the selected components into a subgraph corresponding to the modulation signal; the human-computer interface operation and display module is used for setting the modulation parameters of the target mixed modulation signal and transmitting the modulation parameters to the mixed modulation signal data generation module; the mixed modulation signal data generation module is used for acquiring the modulation parameters of the target mixed modulation signal, selecting a target subgraph from all subgraphs according to the target mixed modulation signal, and generating target mixed modulation signal data according to the target subgraph and the modulation parameters of the target mixed modulation signal;
and the general software radio peripheral is in communication connection with the industrial personal computer and is used for loading the target mixed modulation signal data and generating the target mixed modulation signal.
8. The software-based reconfigurable hybrid modulation signal generator of claim 7, wherein the general software radio peripheral comprises a radio frequency signal transmission module, the radio frequency signal transmission module is communicatively connected to an antenna, and the radio frequency signal transmission module acquires the target hybrid modulation signal, converts a baseband digital signal of the target hybrid modulation signal into an analog signal, and transmits the analog signal through the antenna.
9. The software-reconfigurable hybrid modulated signal generator of claim 8, wherein the industrial personal computer further comprises a data storage module for storing the modulation parameters, the components, the subgraph, and the target hybrid modulated signal data.
10. The software-reconfigurable hybrid modulated signal generator of claim 9, wherein the modulation parameters include a type of a modulation signal in the target hybrid modulated signal, a transmission frequency of the target hybrid modulated signal, a transmission gain of the target hybrid modulated signal, a total signal bandwidth of the target hybrid modulated signal, a number of modulation signals in the target hybrid modulated signal, a frequency offset of a modulation signal in the target hybrid modulated signal, and a bandwidth of a modulation signal in the target hybrid modulated signal.
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