CN211741897U - Complex electromagnetic environment signal generator - Google Patents
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- CN211741897U CN211741897U CN202021005554.8U CN202021005554U CN211741897U CN 211741897 U CN211741897 U CN 211741897U CN 202021005554 U CN202021005554 U CN 202021005554U CN 211741897 U CN211741897 U CN 211741897U
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Abstract
The utility model discloses a complicated electromagnetic environment signal produces appearance relates to signal generation technical field. The signal generator comprises a man-machine interaction module, the man-machine interaction module is in two-way connection with a main control unit, the main control unit is in two-way connection with a DSP control unit, the DSP control unit is in two-way connection with an FPGA, four output ends of the FPGA are respectively connected with an input end of an amplitude adjusting module after passing through a D/A module, an output end of the amplitude adjusting module is connected with an input end of a combiner unit, and an output end of the combiner unit outputs a complex interference signal. The utility model discloses a signal generator can produce multiple complex interference signal such as narrow band interference, broadband interference, frequency sweep interference, collision interference, jam interference, aiming interference, powerful.
Description
Technical Field
The utility model relates to a signal generation technical field, concretely relates to appearance is produced to complicated electromagnetic environment signal.
Background
The research on the generation of electromagnetic environment in battlefields in China is still in the development stage, and companies have successfully researched corresponding signal simulation equipment for battlefield electronic warfare equipment, which can simulate VHF/UHF/L frequency band, internal radar and communication signals by software radio technology, can simulate and generate radar signals such as conventional pulse, pulse compression, pulse Doppler, frequency agility, multiple frequency spread and the like, can also generate various analog or digital communication signals such as CW/FM/ASK/FSK/BPSK and the like, and can also simulate complex data LINK signals such as LINK4A/LINK11 and the like. However, these are simulations of single or few-path communication signals, and simulation studies on high-frequency band, multi-pattern, and high-density electromagnetic signal environments in real battlefield communication environments are yet to be further enhanced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art not enough and provide a complicated electromagnetic environment signal that can produce multiple interference signal and produce the appearance.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is:
a complex electromagnetic environment signal generator comprises a man-machine interaction module, a main control unit, a DSP control unit, an FPGA, a combiner unit and an interface unit; the interface unit is bidirectionally connected with the main control unit and is used for realizing the connection between the signal generator and peripheral equipment; the man-machine interaction module is bidirectionally connected with the main control unit and is used for inputting control commands and displaying output data; the main control unit is connected with the DSP control unit in a bidirectional mode and is used for data transmission, calculation, man-machine interaction and system control; the DSP control unit is in bidirectional connection with the FPGA and is used for finishing control output of interference signal parameters; the clock input ends of the main control unit, the DSP control unit and the FPGA are respectively connected with a clock module, and the clock module is used for providing working clocks for the main control unit, the DSP control unit and the FPGA; the four output ends of the FPGA are respectively connected with the input end of an amplitude adjusting module after passing through a D/A module, the output ends of the four amplitude adjusting modules are respectively connected with the input end of a combiner unit, the FPGA is used for synthesizing multi-path digital interference signals and respectively inputting the synthesized multi-path digital interference signals to one D/A module for processing, the D/A module is used for realizing the up-conversion of signals and converting the digital interference signals into analog interference signals, the amplitude adjusting module is used for carrying out amplitude adjustment on the input analog interference signals, the combiner unit is used for carrying out combined output on the amplitude-adjusted multi-path analog interference signals, and the output end of the combiner unit outputs complex interference signals.
Furthermore, the signal generator also comprises a power supply module, and the power supply module is connected with a power supply input end of a module needing power supply in the signal generator and used for providing a working power supply for the signal generator.
Further, the human-computer interaction module comprises a display unit for displaying parameters and a keyboard unit for inputting control commands; the display unit is connected with the signal output end of the main control unit, and the keyboard unit is connected with the signal input end of the main control unit.
Further, the interface unit includes a LAN interface, a USB interface, and an RS232 interface.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the utility model discloses a signal generator can produce multiple complex interference signal such as narrow band interference, broadband interference, frequency sweep interference, collision interference, jam interference, aiming interference, powerful, convenient to use. Furthermore, the utility model discloses a signal generation appearance has adopted the modular design thinking for the instrument volume significantly reduces, has satisfied miniaturized requirement.
Drawings
Fig. 1 is a hardware schematic block diagram of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1, the embodiment of the utility model discloses a complex electromagnetic environment signal generator, which comprises a human-computer interaction module, a main control unit, a DSP control unit, an FPGA, a combiner unit and an interface unit; the interface unit is bidirectionally connected with the main control unit and is used for realizing the connection between the signal generator and peripheral equipment; the man-machine interaction module is bidirectionally connected with the main control unit and is used for inputting control commands and displaying output data; the main control unit is in bidirectional connection with the DSP control unit and is used for data transmission, calculation, man-machine interaction and system control; the DSP control unit is in bidirectional connection with the FPGA and is used for finishing control output of interference signal parameters; the clock input ends of the main control unit, the DSP control unit and the FPGA are respectively connected with a clock module, and the clock module is used for providing working clocks for the main control unit, the DSP control unit and the FPGA; the FPGA is used for synthesizing multi-path digital interference signals and inputting the synthesized multi-path digital interference signals to a D/A module for processing, the D/A module is used for realizing up-conversion of signals and converting the interference signals in a digital form into interference signals in an analog form, and the amplitude adjusting module is used for carrying out amplitude adjustment on the input analog interference signals and realizing level control of the interference signals; the combiner unit is used for combining and outputting the multi-path analog interference signals after amplitude adjustment, and the output end of the combiner unit outputs complex interference signals.
The signal generator also comprises a power supply module, and the power supply module is connected with the power supply input end of the module needing power supply in the signal generator and used for providing a working power supply for the module.
As shown in fig. 1, the interface unit includes a LAN interface, a USB interface, and an RS232 interface.
As shown in fig. 1, the human-computer interaction module includes a display unit for implementing display of parameters and a keyboard unit for inputting control commands; the display unit is connected with the signal output end of the main control unit, and the keyboard unit is connected with the signal input end of the main control unit.
The utility model discloses in, FPGA is used for producing various interference signal, including interference signal such as broadband, narrowband, jam and aim, four DA modules are used for realizing the up-conversion and the digital-to-analog conversion of various interference signal. The combination of the signals is realized by an analog combiner. The amplitude adjusting module is used for realizing the level control of the interference signal. The combiner unit is used for completing the mixing of the interference signals.
Because FPGA logic is more, the high-end FPGA stratix II series of Altera company is adopted, the 90nm low-k insulation process technology of TSMC is adopted by the FPGA of the stratix II series, the equivalent logic unit is as high as 180k, the embedded memory reaches 9Mbits, and the FPGA of the stratix II not only has extremely high performance and density, but also is optimized aiming at the total power of devices. In a specific design implementation, EP2S90F1020C4 is selected as a core device of a transmitting side circuit, and generation of various interference signals is realized in cooperation with AD 9957. The utility model discloses used 4 AD9957, AD9957 supports up to 400 MHz's quadrature digital up-converter. Because the AD9957 is internally integrated with the high-speed DDS, the 14bit DAC, the clock frequency multiplier circuit and the digital filter, when the device is applied to a wireless or wired communication infrastructure system, the frequency conversion on a baseband can be realized, so that the data transmission is simple, the cost is low and the efficiency is high. The 1G Sample/s Numerically Controlled Oscillator (NCO) and DAC allow the AD9957 to provide a direct output up to 400MHz, thus eliminating the need for an upper stage frequency conversion and reducing the filter requirements. The AD9957 characteristics are just sufficient for interference signal generation.
The utility model discloses a signal generator can produce multiple complex interference signal such as narrow band interference, broadband interference, frequency sweep interference, collision interference, jam interference, aiming interference, powerful, convenient to use. Furthermore, the utility model discloses a signal generation appearance has adopted the modular design thinking for the instrument volume significantly reduces, has satisfied miniaturized requirement.
It is obvious that the above embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (4)
1. A complex electromagnetic environment signal generator is characterized in that: the system comprises a man-machine interaction module, a main control unit, a DSP control unit, an FPGA, a combiner unit and an interface unit; the interface unit is bidirectionally connected with the main control unit and is used for realizing the connection between the signal generator and peripheral equipment; the man-machine interaction module is bidirectionally connected with the main control unit and is used for inputting control commands and displaying output data; the main control unit is connected with the DSP control unit in a bidirectional mode and is used for data transmission, calculation, man-machine interaction and system control; the DSP control unit is in bidirectional connection with the FPGA and is used for finishing control output of interference signal parameters; the clock input ends of the main control unit, the DSP control unit and the FPGA are respectively connected with a clock module, and the clock module is used for providing working clocks for the main control unit, the DSP control unit and the FPGA; the four output ends of the FPGA are respectively connected with the input end of an amplitude adjusting module after passing through a D/A module, the output ends of the four amplitude adjusting modules are respectively connected with the input end of a combiner unit, the FPGA is used for synthesizing multi-path digital interference signals and respectively inputting the synthesized multi-path digital interference signals to one D/A module for processing, the D/A module is used for realizing the up-conversion of signals and converting the digital interference signals into analog interference signals, the amplitude adjusting module is used for carrying out amplitude adjustment on the input analog interference signals, the combiner unit is used for carrying out combined output on the amplitude-adjusted multi-path analog interference signals, and the output end of the combiner unit outputs complex interference signals.
2. The complex electromagnetic environment signal generator of claim 1, wherein: the signal generator also comprises a power supply module, and the power supply module is connected with the power supply input end of a module needing power supply in the signal generator and used for providing a working power supply for the signal generator.
3. The complex electromagnetic environment signal generator of claim 1, wherein: the human-computer interaction module comprises a display unit for realizing the display of parameters and a keyboard unit for inputting control commands; the display unit is connected with the signal output end of the main control unit, and the keyboard unit is connected with the signal input end of the main control unit.
4. The complex electromagnetic environment signal generator of claim 1, wherein: the interface unit comprises a LAN interface, a USB interface and an RS232 interface.
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| CN202021005554.8U CN211741897U (en) | 2020-06-04 | 2020-06-04 | Complex electromagnetic environment signal generator |
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| CN202021005554.8U CN211741897U (en) | 2020-06-04 | 2020-06-04 | Complex electromagnetic environment signal generator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114844577A (en) * | 2022-05-05 | 2022-08-02 | 西安亨孚防务科技有限责任公司 | Broadband multi-style signal simulator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114844577A (en) * | 2022-05-05 | 2022-08-02 | 西安亨孚防务科技有限责任公司 | Broadband multi-style signal simulator |
| CN114844577B (en) * | 2022-05-05 | 2023-12-22 | 西安亨孚防务科技有限责任公司 | Broadband multi-style signal simulator |
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