Device for supporting realization of frequency sweep monitoring of interference signals of complex terrains

Abstract

The utility model relates to a device for supporting the realization of complex terrain interference signal sweep frequency monitoring based on an unmanned aerial vehicle flight control system, and the device comprises an antenna array module which automatically selects and switches a proper antenna for the complex terrain interference signals of different frequency bands for signal reception; the interference signal gain amplification module is used for performing gain amplification on the received complex interference; the interference signal filtering module is used for performing pre-selection filtering; the broadband orthogonal demodulation module is used for mixing the generated local oscillation signals; the broadband frequency synthesis module is used for providing a local oscillation signal for frequency mixing of the broadband orthogonal demodulation module; and the dynamic gain differential amplification module is used for performing gain amplification on the mixed low-intermediate frequency interference signals. The device for supporting the frequency sweeping monitoring of the complex terrain interference signal based on the unmanned aerial vehicle flight control system can be used for monitoring the interference signal in all directions in different terrains, environments and climates, and has the requirements of airborne interference signal monitoring equipment for flexibility, maneuverability, wide coverage and the like.

Description

Technical Field

[0001] The utility model relates to the field of airborne public safety, especially to the field of wireless communication based on a flight control system, and specifically refers to a device that supports complex terrain interference signal sweep monitoring based on an unmanned aerial vehicle (UAV) flight control system. Background Art

[0002] Complex interference signal simulation devices play an important role in the fields of mobile communication and public safety. They can be widely applied to various application scenarios such as complex terrain interference signal monitoring, satellite navigation interference monitoring, and electromagnetic environment testing, and have significant national defense, economic, and social benefits. An interference signal sweep monitoring device that conducts all-round interference signal monitoring for different terrains, environments, and climates is a technical difficulty in the current fields of mobile communication and public safety. Traditional interference signal monitoring devices can only operate in the ground mode and can only test certain fixed frequency bands and frequencies. They have disadvantages such as being unable to conduct aerial all-round sweep monitoring, and having poor flexibility and mobility. Therefore, the existing technical solutions cannot meet the requirements of mobile communication and public safety airborne testing. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the above-mentioned disadvantages of the existing technology and provide a device that supports complex terrain interference signal sweep monitoring based on an unmanned aerial vehicle (UAV) flight control system, which has good flexibility, good mobility, and a relatively wide range of applications.

[0004] In order to achieve the above purpose, the device of the utility model that supports complex terrain interference signal sweep monitoring based on an unmanned aerial vehicle (UAV) flight control system is as follows:

[0005] The device that supports complex terrain interference signal sweep monitoring based on an unmanned aerial vehicle (UAV) flight control system is mainly characterized in that the device includes:

[0006] An antenna array module, which is used to automatically select and switch a suitable antenna to receive signals for complex terrain interference signals of different frequency bands;

[0007] An interference signal gain amplification module, which is connected to the antenna array module and is used to amplify the received complex interference;

[0008] An interference signal filtering module, which is connected to the interference signal gain amplification module and is used to pre-filter the amplified complex interference signal to achieve image frequency suppression and harmonic mixing suppression of the received interference signal;

[0009] A broadband quadrature demodulation module, which is connected to the interference signal filtering module and is used to mix the filtered complex terrain interference signal with the local oscillator signal generated by the broadband frequency synthesis module to achieve low intermediate frequency output of the complex terrain interference signal;

[0010] A broadband frequency synthesis module, connected to the broadband quadrature demodulation module, for providing a local oscillator signal for mixing in the broadband quadrature demodulation module;

[0011] A dynamic gain differential amplification module, connected to the broadband quadrature demodulation module, for amplifying the gain of the low intermediate frequency interference signal after mixing;

[0012] A baseband data processing module, connected to the dynamic gain differential amplification module, for filtering, analog-to-digital conversion, and data acquisition and processing of the low intermediate frequency interference signal;

[0013] An unmanned aerial vehicle (UAV) flight control system, connected to the baseband data processing module, for airborne carrying of the interference signal sweep monitoring unit, realizing remote command interaction with the monitoring unit and spectrum data display.

[0014] Preferably, the system further includes:

[0015] An antenna array steering module, with its output end connected to the UAV flight control system and its input end connected to the antenna array module, for responding to the commands issued by the UAV flight control system.

[0016] Preferably, the baseband data processing module includes:

[0017] An anti-aliasing filtering unit, connected to the dynamic gain differential amplification module, for filtering the low intermediate frequency interference signal to suppress out-of-band interference;

[0018] A high-speed ADC unit, connected to the anti-aliasing filtering unit, for performing analog-to-digital conversion on the low intermediate frequency interference signal filtered by the anti-aliasing filtering unit;

[0019] A data acquisition and processing unit, connected to the high-speed ADC unit, for performing high-speed data processing on the converted digital signal to realize the analysis of interference signals in complex terrains.

[0020] Preferably, the UAV flight control system includes:

[0021] A flight module, connected to the baseband data processing module, for airborne carrying of the interference signal sweep monitoring unit and simultaneously completing data communication with the monitoring unit;

[0022] A remote control and display module, connected to the flight module, for performing remote command interaction with the flight module and displaying the spectrum data of the interference signal.

[0023] The device that supports the implementation of complex terrain interference signal sweep monitoring based on the UAV flight control system of the present utility model can perform all-round interference signal monitoring for different terrains, environments, and climates, meeting the requirements of airborne interference signal monitoring equipment such as flexibility, mobility, and wide coverage. It can be widely applied to complex terrains in various application scenarios such as complex terrain interference signal monitoring, satellite navigation interference monitoring, and electromagnetic environment testing. For the requirements of the interference signal monitoring device based on the UAV flight control system, an antenna array, gain adjustment, broadband quadrature demodulation, baseband data processing, flight control system, etc. are used to support relevant tests in fields such as mobile communication and public safety. The present utility model realizes the ability to carry a complex terrain interference signal sweep monitoring device using the UAV flight control system, can perform all-round interference signal monitoring for different terrains, environments, and climates, and has broad application prospects. Brief Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of the device that supports the implementation of complex terrain interference signal sweep monitoring based on the UAV flight control system of the present utility model. Detailed Embodiment

[0025] In order to more clearly describe the technical content of the present utility model, the following will be further described in combination with specific embodiments.

[0026] The device that supports the implementation of complex terrain interference signal sweep monitoring based on the UAV flight control system of the present utility model includes:

[0027] An antenna array module, which is used to automatically select and switch a suitable antenna for signal reception of complex terrain interference signals in different frequency bands;

[0028] An interference signal gain amplification module, which is connected to the antenna array module and is used to amplify the received complex interference;

[0029] An interference signal filtering module, which is connected to the interference signal gain amplification module and is used to perform preselection filtering on the amplified complex interference signal to achieve image frequency suppression and harmonic mixing suppression of the received interference signal;

[0030] A broadband quadrature demodulation module, which is connected to the interference signal filtering module and is used to mix the filtered complex terrain interference signal with the local oscillator signal generated by the broadband frequency synthesis module to achieve low intermediate frequency output of the complex terrain interference signal;

[0031] A broadband frequency synthesis module, which is connected to the broadband quadrature demodulation module and is used to provide a local oscillator signal for the mixing of the broadband quadrature demodulation module;

[0032] A dynamic gain differential amplification module, connected to the broadband quadrature demodulation module, for amplifying the gain of the low intermediate frequency interference signal after mixing;

[0033] A baseband data processing module, connected to the dynamic gain differential amplification module, for filtering, analog-to-digital conversion and data acquisition processing of the low intermediate frequency interference signal;

[0034] A UAV flight control system, connected to the baseband data processing module, for airborne carrying of the interference signal frequency sweep monitoring unit, realizing remote command interaction with the monitoring unit and spectrum data display.

[0035] As a preferred embodiment of the present invention, the system further includes:

[0036] An antenna array steering module, with its output end connected to the UAV flight control system and its input end connected to the antenna array module, for responding to the commands issued by the UAV flight control system.

[0037] As a preferred embodiment of the present invention, the baseband data processing module includes:

[0038] An anti-aliasing filter unit, connected to the dynamic gain differential amplification module, for filtering the low intermediate frequency interference signal and suppressing out-of-band interference;

[0039] A high-speed ADC unit, connected to the anti-aliasing filter unit, for performing analog-to-digital conversion on the low intermediate frequency interference signal filtered by the anti-aliasing filter unit;

[0040] A data acquisition and processing unit, connected to the high-speed ADC unit, for performing high-speed data processing on the converted digital signal to realize the signal analysis of the interference signal in complex terrain.

[0041] As a preferred embodiment of the present invention, the UAV flight control system includes:

[0042] A flight module, connected to the baseband data processing module, for airborne carrying of the interference signal frequency sweep monitoring unit and simultaneously completing data communication with the monitoring unit;

[0043] A remote control and display module, connected to the flight module, for remote command interaction with the flight module and display of the interference signal spectrum data.

[0044] In the specific embodiments of the present utility model, a complex terrain interference signal sweep monitoring device is provided, which can meet the requirements of all-round interference signal monitoring in different terrains, environments and climates, and has the requirements of airborne interference signal monitoring equipment such as flexibility, mobility and wide coverage. It can be widely applied to various application scenarios such as complex terrain interference signal monitoring, satellite navigation interference monitoring, electromagnetic environment testing, etc. For the requirements of the interference signal monitoring device based on the UAV flight control system, an antenna array, gain adjustment, broadband quadrature demodulation, baseband data processing, flight control system, etc. are used to support relevant tests in fields such as mobile communication and public safety.

[0045] As Figure 1 shown, the complex terrain interference signal sweep monitoring device based on the UAV flight control system includes an antenna array module 1, an interference signal gain amplification module 2, an interference signal filtering module 3, a broadband quadrature demodulation module 4, a broadband frequency synthesis module 5, a dynamic gain differential amplification module 6, a baseband data processing module 7, a UAV flight control system 8, and an antenna array steering module 9, and the above-mentioned units are connected in sequence.

[0046] The antenna array module 1 is configured to automatically select and switch a suitable antenna for signal reception of complex terrain interference signals in different frequency bands;

[0047] The interference signal gain amplification module 2 is configured to perform gain amplification on the received complex interference;

[0048] The interference signal filtering module 3 is configured to perform preselection filtering on the gain-amplified complex interference signal to achieve image frequency suppression and harmonic mixing suppression of the received interference signal;

[0049] The broadband quadrature demodulation module 4 is configured to mix the filtered complex terrain interference signal with the local oscillator signal generated by the broadband frequency synthesis module to achieve low intermediate frequency output of the complex terrain interference signal;

[0050] The broadband frequency synthesis module 5 is configured to provide a local oscillator signal for mixing by the broadband quadrature demodulation module;

[0051] The dynamic gain differential amplification module 6 is configured to perform gain amplification on the mixed low intermediate frequency interference signal;

[0052] The baseband data processing module 7 includes an anti-aliasing filtering unit, a high-speed ADC unit, and a data acquisition and processing unit. The anti-aliasing filtering unit, the high-speed ADC unit, and the data acquisition and processing unit are connected in sequence. The anti-aliasing filtering unit is used to filter and suppress out-of-band interference for the low- and intermediate-frequency interference signals. The high-speed ADC unit is used to perform analog-to-digital conversion on the low- and intermediate-frequency interference signals filtered by the anti-aliasing filtering unit. The data acquisition and processing unit is used to perform high-speed data processing on the converted digital signals to achieve the signal analysis of complex terrain interference signals.

[0053] The UAV flight control system 8 includes a flight module and a remote control and display module. The flight module and the remote control and display module are connected in sequence. The flight module is used to carry the interference signal frequency sweeping monitoring unit in the air and simultaneously complete data communication with the monitoring unit. The remote control and display module is used to perform remote command interaction on the flight module and display the interference signal spectrum data.

[0054] The antenna array steering module 9 is configured to respond to the commands issued by the UAV flight control system to achieve the adjustment of the antenna direction angle and meet the all-round monitoring requirements.

[0055] The specific working method of this device is as follows: The antenna array module 1 automatically selects and switches a suitable antenna for signal reception according to complex terrain interference signals of different frequency bands. The interference signal gain amplification module 2 amplifies the received complex interference. The interference signal filtering module 3 performs preselection filtering on the amplified complex interference signal to achieve image frequency suppression and harmonic mixing suppression of the received interference signal. The broadband quadrature demodulation module 4 mixes the filtered complex terrain interference signal with the local oscillator signal generated by the broadband frequency synthesis module 5 to achieve the low- and intermediate-frequency output of the complex terrain interference signal. The dynamic gain differential amplification module 6 amplifies the mixed low- and intermediate-frequency interference signal. The baseband data processing module 7 first filters and suppresses out-of-band interference for the amplified low- and intermediate-frequency interference signal through the anti-aliasing filtering unit. The filtered low- and intermediate-frequency interference signal is subjected to analog-to-digital conversion by the high-speed ADC unit. The converted digital signal is subjected to high-speed data processing by the data acquisition and processing unit to achieve the signal analysis of complex terrain interference signals. The interference signal frequency sweeping monitoring unit is carried in the air through the flight module in the UAV flight control system 8, and at the same time, remote command interaction with the monitoring unit and display of the interference signal spectrum data are realized through the remote control and display module. The antenna array steering module 9 is used to respond to the commands issued by the UAV flight control system to achieve the adjustment of the antenna direction angle and meet the all-round monitoring requirements, and finally realize a complex terrain interference signal frequency sweeping monitoring device based on the UAV flight control system.

[0056] For the specific implementation solution of this embodiment, reference can be made to the relevant descriptions in the above embodiments, which will not be elaborated here.

[0057] It is understandable that the same or similar parts in the above embodiments can be referred to each other, and the content not described in detail in some embodiments can be referred to the same or similar content in other embodiments.

[0058] It should be noted that in the description of the present utility model, terms such as "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, in the description of the present utility model, unless otherwise specified, the meaning of "a plurality" refers to at least two.

[0059] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0060] The device that adopts the present utility model to support the realization of complex terrain interference signal sweep monitoring based on the UAV flight control system can perform all-round interference signal monitoring for different terrains, environments, and climates, and meets the requirements of airborne interference signal monitoring equipment such as flexibility, mobility, and wide coverage. It can be widely applied to complex terrains in various application scenarios such as complex terrain interference signal monitoring, satellite navigation interference monitoring, and electromagnetic environment testing. For the requirements of the interference signal monitoring device based on the UAV flight control system, an antenna array, gain adjustment, broadband quadrature demodulation, baseband data processing, flight control system, etc. are used to support relevant tests in fields such as mobile communication and public safety. The present utility model realizes the ability to carry a complex terrain interference signal sweep monitoring device using the UAV flight control system, can perform all-round interference signal monitoring for different terrains, environments, and climates, and has broad application prospects.

[0061] In this specification, the present utility model has been described with reference to its specific embodiments. However, it is obvious that various modifications and transformations can still be made without departing from the spirit and scope of the present utility model. Therefore, the specification and the drawings should be regarded as illustrative rather than restrictive.

Claims

1. A device for supporting frequency sweep monitoring of interference signals in complex terrain, characterized in that: The device comprises: Antenna array module, used to automatically select and switch the appropriate antenna for signal reception in complex terrain interference signals of different frequency bands; An interference signal gain amplification module, connected to the antenna array module, for amplifying the gain of the received complex interference; An interference signal filtering module is connected to the interference signal gain amplification module and is used to pre-select and filter the complex interference signal after gain amplification to achieve image frequency suppression and harmonic mixing suppression of the received interference signal; A broadband orthogonal demodulation module is connected to the interference signal filtering module and is used to mix the filtered complex terrain interference signal with the local oscillator signal generated by the broadband frequency synthesis module to achieve low intermediate frequency output of the complex terrain interference signal; A broadband frequency synthesis module is connected to the broadband orthogonal demodulation module and is used to mix the broadband orthogonal demodulation module to provide a local oscillator signal; A dynamic gain differential amplifier module, connected to the broadband orthogonal demodulation module, is used to perform gain amplification on the mixed low intermediate frequency interference signal; A baseband data processing module, connected to the dynamic gain differential amplifier module, for filtering, analog-to-digital conversion and data acquisition processing of low intermediate frequency interference signals; The UAV flight control system is connected to the baseband data processing module and is used to carry the interference signal frequency sweep monitoring unit in the air to realize remote command interaction with the monitoring unit and spectrum data display.

2. The device for supporting frequency sweep monitoring of interference signals in complex terrain according to claim 1, characterized in that: The system further comprises: The antenna array steering module has an output end connected to the UAV flight control system and an input end connected to the antenna array module, and is used to respond to instructions issued by the UAV flight control system.

3. The device for supporting frequency sweep monitoring of interference signals in complex terrain according to claim 1, characterized in that: The baseband data processing module comprises: An anti-aliasing filter unit, connected to the dynamic gain differential amplifier module, is used to filter the low intermediate frequency interference signal and suppress out-of-band interference; A high-speed ADC unit, connected to the anti-aliasing filter unit, for performing analog-to-digital conversion on the low intermediate frequency interference signal after being filtered by the anti-aliasing filter unit; The data acquisition and processing unit is connected to the high-speed ADC unit and is used to perform high-speed data processing on the converted digital signal to realize signal analysis of complex terrain interference signals.

4. The device for supporting frequency sweep monitoring of interference signals in complex terrain according to claim 1, characterized in that: The UAV flight control system comprises: A flight module, connected to the baseband data processing module, is used to carry the interference signal frequency sweep monitoring unit in the air and complete data communication with the monitoring unit at the same time; The remote control and display module is connected to the flight module and is used for remote command interaction with the flight module and display of interference signal spectrum data.

Images