CN114157314A - Reconfigurable electromagnetic spectrum monitoring device and method - Google Patents
Reconfigurable electromagnetic spectrum monitoring device and method Download PDFInfo
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- CN114157314A CN114157314A CN202111351803.8A CN202111351803A CN114157314A CN 114157314 A CN114157314 A CN 114157314A CN 202111351803 A CN202111351803 A CN 202111351803A CN 114157314 A CN114157314 A CN 114157314A
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- 238000001228 spectrum Methods 0.000 title claims abstract description 25
- 238000012806 monitoring device Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000011159 matrix material Substances 0.000 claims abstract description 61
- 238000012544 monitoring process Methods 0.000 claims abstract description 40
- 238000004458 analytical method Methods 0.000 claims description 9
- 230000035945 sensitivity Effects 0.000 claims description 8
- 235000009470 Theobroma cacao Nutrition 0.000 claims 1
- 244000240602 cacao Species 0.000 claims 1
- 230000003321 amplification Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 229920006395 saturated elastomer Polymers 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/1607—Supply circuits
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/10—Packet switching elements characterised by the switching fabric construction
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- Computer Networks & Wireless Communication (AREA)
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- Electromagnetism (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
The invention discloses a reconfigurable electromagnetic spectrum monitoring device and method, and belongs to the technical field of monitoring. A user can control the reconfigurable switch matrix through system software on the system display and control equipment to realize the switching of the active and passive working states of the receiving antenna, the switching is flexible, the remote control is convenient, and the monitoring and receiving requirements of different application scenes of weak signals and high-power signals are met; the reconfigurable antenna supplies power through the reconfigurable switch matrix without a battery or an additional power supply module, so that the battery is prevented from being replaced in a staged manner, and the structure is more compact.
Description
Technical Field
The invention belongs to the technical field of monitoring, and particularly relates to a reconfigurable electromagnetic spectrum monitoring device and method.
Background
The electromagnetic spectrum monitoring system has wide application in the fields of military and civil spectrum management and control, radio equipment outfield tests, important safety protection and the like, along with the continuous development of software radio, integrated circuits, microwave radio frequency and artificial intelligence technologies, the types of electromagnetic radiation sources are more and more, so that the frequency resources are more and more crowded, the signal power range is continuously increased, and the requirements on the monitoring frequency range, the weak signal, the high-power signal receiving capacity and the like of the spectrum monitoring system are higher and higher.
In order to realize omnidirectional reception of space signals with large frequency range and high sensitivity, a traditional spectrum monitoring system generally adopts a design scheme of a multi-band active antenna and a switch matrix. The switching of receiving antennas of different frequency bands is realized through the switch matrix, the receiving of signals of wide frequency bands is realized, and the receiving sensitivity of the system is improved through the active receiving antenna. The active antenna is powered by a battery or a separate power supply module.
The prior art has the following defects:
1. it is difficult to meet the requirements of flexibly switching and monitoring weak signals and high-power signals in different scenes. When the active antenna of the system works, the system is easily saturated or even burnt out when high-power signals are encountered, and a user needs to replace the small-gain antenna.
2. The system switch matrix only has the function of switching the antenna frequency band, and cannot realize the antenna power supply and the state control.
3. Active antenna-powered batteries have a limited life and need to be replaced periodically.
With the continuous development of the technologies in the fields of wireless communication, radar, electronic countermeasure and the like, the frequency utilization devices are more and more in variety, so that the frequency and power ranges are continuously enlarged, the electromagnetic environment is more and more complex, and the requirements on the monitoring frequency range, the high sensitivity, the high-power signal receiving capability and the like of a frequency spectrum monitoring system are higher and higher. The invention provides a reconfigurable electromagnetic spectrum monitoring method and device aiming at the monitoring requirements of a wide frequency band electromagnetic environment under different scenes of high sensitivity and high power, and provides an advanced technical means for flexibly switching a broadband monitoring mode of an electromagnetic spectrum monitoring system under different scenes of weak signals and high power signals.
The technical problems to be solved by the invention include:
1. aiming at the difficult problem of spectrum monitoring under the multi-scene of weak signals and high-power signals, a spectrum monitoring device with reconfigurable system receiving sensitivity and a realization method are provided, and the flexible switching of monitoring modes of an electromagnetic spectrum monitoring system under different scenes of large and small power signals can be realized through system software;
2. aiming at the difficult problem that the traditional monitoring system switch matrix only has an antenna switching function and cannot meet the requirements of antenna power supply and state control, a reconfigurable switch matrix design method is provided, and not only can the antenna switching of different frequency bands be carried out, but also the multi-antenna power supply can be realized.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a reconfigurable electromagnetic spectrum monitoring device and method, which are reasonable in design, overcome the defects of the prior art and have good effects.
In order to achieve the purpose, the invention adopts the following technical scheme:
a reconfigurable electromagnetic spectrum monitoring device comprises a reconfigurable receiving antenna, an N-port reconfigurable switch matrix device, a network switching device, a receiving device and a system display control device;
the reconfigurable receiving antenna consists of a passive antenna and a switch amplification module;
the reconfigurable receiving antenna has two working states of a passive path and an active path by controlling the switch amplification module;
the N-port reconfigurable switch matrix equipment is configured to be used for realizing reconfigurable receiving antenna switching, reconfigurable receiving antenna state control and direct current power supply;
a network switching device configured to implement system network interconnection;
the receiving equipment is configured to be used for realizing system signal acquisition and analysis and outputting a signal acquisition and analysis result to the system display and control equipment;
the system display and control equipment is configured to control the switching state and the power supply state through network instructions; state control of the receiving equipment and the reconfigurable switch matrix equipment is realized, and signal acquisition data and a signal analysis result of the receiving equipment are displayed;
the reconfigurable N-port switch matrix equipment is controlled on the system display control equipment through system software, and the active and passive working state switching of the reconfigurable receiving antenna is realized;
the reconfigurable receiving antenna is powered by the N-port reconfigurable switch matrix equipment;
when the system is used for receiving high-power signals, the reconfigurable receiving antenna works in a passive path;
when the system is used for receiving weak signals, the reconfigurable receiving antenna works in an active path, and a low-noise discharging direct-current power supply of the active path is derived from a direct-current power supply module of the N-port reconfigurable switch matrix equipment and is input through an RF input path of the switch matrix; the active and passive path switching is controlled by the switch of the direct current power supply module of the N-port reconfigurable switch matrix equipment; when the direct current power supply module is turned off, the reconfigurable receiving antenna works in a passive path, and when the direct current power supply module is turned on, the reconfigurable receiving antenna can work in an active path.
Preferably, the N-port reconfigurable switch matrix device comprises a single-pole N-position RF switch, a direct-current power supply module, a direct-current bias module and a switch matrix control module;
a single pole N-set RF switch configured for switching of a reconfigurable receive antenna;
a direct current power supply module configured to power the reconfigurable receiving antenna;
a DC bias module configured for combining and splitting of DC and RF signals;
and the switch matrix control module is configured to be used for carrying out switching control on the single-pole N-set RF switch and switching control on the direct-current power supply module.
In addition, the invention also provides a monitoring method of the reconfigurable electromagnetic spectrum, which adopts the monitoring device of the reconfigurable electromagnetic spectrum, and specifically comprises the following steps:
step 1: the initial state of the N-port reconfigurable switch matrix device is configured to be a passive state through the system display control device, and at the moment, the reconfigurable receiving antenna works in the passive state;
step 2: a user controls a selector switch of the N-port reconfigurable switch matrix equipment to select a reconfigurable receiving antenna meeting the frequency range requirement through system display control equipment according to the monitoring frequency range;
and step 3: a user observes whether the received signal amplitude and the signal-to-noise ratio meet the signal monitoring requirement or not through a system display and control device; if the received signal amplitude and the signal-to-noise ratio meet the signal monitoring requirement, the N-port reconfigurable switch matrix equipment and the reconfigurable receiving antenna keep the passive state unchanged;
and 4, step 4: if the external field signal is weak, and the reconfigurable receiving antenna is difficult to meet the monitoring sensitivity requirement in a passive state, a user configures the state of the N-port reconfigurable switch matrix equipment into an active state through system display and control equipment, and the reconfigurable receiving antenna is controlled by the N-port reconfigurable switch matrix equipment of the switch matrix and then is converted into the active state;
and 5: and (4) when the user completes the signal monitoring of the current frequency band and switches the system monitoring frequency range, repeating the steps 1-4.
The invention has the following beneficial technical effects:
a user can control the reconfigurable switch matrix through system software on the system display and control equipment to realize the switching of the active and passive working states of the receiving antenna, the switching is flexible, the remote control is convenient, and the monitoring and receiving requirements of different application scenes of weak signals and high-power signals are met;
the reconfigurable antenna supplies power through the reconfigurable switch matrix without a battery or an additional power supply module, so that the battery is prevented from being replaced in a staged manner, and the structure is more compact.
Drawings
Fig. 1 is a structural block diagram of a reconfigurable electromagnetic spectrum monitoring device.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
example 1:
a reconfigurable electromagnetic spectrum monitoring device is structurally shown in figure 1 and comprises a reconfigurable receiving antenna, an N-port reconfigurable switch matrix device, a network switching device, a receiving device and a system display control device;
the reconfigurable receiving antenna consists of a passive antenna and a switch amplification module;
the reconfigurable receiving antenna has two working states of a passive path and an active path by controlling the switch amplification module;
the N-port reconfigurable switch matrix equipment is configured to be used for realizing reconfigurable receiving antenna switching, reconfigurable receiving antenna state control and direct current power supply;
a network switching device configured to implement system network interconnection;
the receiving equipment is configured to be used for realizing system signal acquisition and analysis and outputting a signal acquisition and analysis result to the system display and control equipment;
the system display and control equipment is configured to control the switching state and the power supply state through network instructions; state control of the receiving equipment and the reconfigurable switch matrix equipment is realized, and signal acquisition data and a signal analysis result of the receiving equipment are displayed;
the reconfigurable N-port switch matrix equipment is controlled on the system display control equipment through system software, and the active and passive working state switching of the reconfigurable receiving antenna is realized;
the reconfigurable receiving antenna is powered by the N-port reconfigurable switch matrix equipment;
when the system is used for receiving high-power signals, the reconfigurable receiving antenna works in a passive path;
when the system is used for receiving weak signals, the reconfigurable receiving antenna works in an active path, and a low-noise discharging direct-current power supply of the active path is derived from a direct-current power supply module of the N-port reconfigurable switch matrix equipment and is input through an RF input path of the switch matrix; the active and passive path switching is controlled by the switch of the direct current power supply module of the N-port reconfigurable switch matrix equipment; when the direct current power supply module is turned off, the reconfigurable receiving antenna works in a passive path, and when the direct current power supply module is turned on, the reconfigurable receiving antenna can work in an active path.
The N-port reconfigurable switch matrix equipment comprises a single-pole N-position RF switch, a direct-current power supply module, a direct-current bias module and a switch matrix control module;
a single pole N-set RF switch configured for switching of a reconfigurable receive antenna;
a direct current power supply module configured to power the reconfigurable receiving antenna;
a DC bias module configured for combining and splitting of DC and RF signals;
and the switch matrix control module is configured to be used for carrying out switching control on the single-pole N-set RF switch and switching control on the direct-current power supply module.
Example 2:
on the basis of the above embodiment 1, the present invention further provides a monitoring method for a reconfigurable electromagnetic spectrum, which specifically includes the following steps:
step 1: the initial state of the N-port reconfigurable switch matrix device is configured to be a passive state through the system display control device, and at the moment, the reconfigurable receiving antenna works in the passive state;
step 2: a user controls a selector switch of the N-port reconfigurable switch matrix equipment to select a reconfigurable receiving antenna meeting the frequency range requirement through system display control equipment according to the monitoring frequency range;
and step 3: a user observes whether the received signal amplitude and the signal-to-noise ratio meet the signal monitoring requirement or not through a system display and control device; if the received signal amplitude and the signal-to-noise ratio meet the signal monitoring requirement, the N-port reconfigurable switch matrix equipment and the reconfigurable receiving antenna keep the passive state unchanged;
and 4, step 4: if the external field signal is weak, and the reconfigurable receiving antenna is difficult to meet the monitoring sensitivity requirement in a passive state, a user configures the state of the N-port reconfigurable switch matrix equipment into an active state through system display and control equipment, and the reconfigurable receiving antenna is controlled by the N-port reconfigurable switch matrix equipment of the switch matrix and then is converted into the active state;
and 5: and (4) when the user completes the signal monitoring of the current frequency band and switches the system monitoring frequency range, repeating the steps 1-4.
Key points and protection points of the invention:
(1) a user can control the reconfigurable switch matrix through system software on the system display control equipment to realize the active and passive working state switching of the receiving antenna without replacing the antenna manually or transforming the antenna.
(2) The reconfigurable antenna supplies power through the reconfigurable switch matrix, the direct current radio frequency is in the same path, and a battery or an additional power supply module is not needed for supplying power.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (3)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111351803.8A CN114157314A (en) | 2021-11-16 | 2021-11-16 | Reconfigurable electromagnetic spectrum monitoring device and method |
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| CN202111351803.8A CN114157314A (en) | 2021-11-16 | 2021-11-16 | Reconfigurable electromagnetic spectrum monitoring device and method |
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Application publication date: 20220308 |