CN113933799A - Multifunctional high-integration electromagnetic signal comprehensive detection device and method - Google Patents
Multifunctional high-integration electromagnetic signal comprehensive detection device and method Download PDFInfo
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- CN113933799A CN113933799A CN202111194216.2A CN202111194216A CN113933799A CN 113933799 A CN113933799 A CN 113933799A CN 202111194216 A CN202111194216 A CN 202111194216A CN 113933799 A CN113933799 A CN 113933799A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The invention discloses a multifunctional high-integration electromagnetic signal comprehensive detection device, which comprises: the device comprises an analog part and a digital part, wherein the analog part is used for realizing a measuring channel with various measuring functions, the digital part carries out data processing on intermediate frequency signals output by the analog part and displays results, the analog part comprises a signal generating channel module, and a wide-band signal is generated through a frequency synthesis unit. The analog part of the invention has independent measuring channels, realizes the sharing of various measuring functions of the digital part by switch selection, and can greatly reduce the number of hardware, the volume and the cost.
Description
Technical Field
The invention relates to the technical field of electromagnetic signal detection, in particular to a multifunctional high-integration electromagnetic signal comprehensive detection device and method.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
Because radar equipment is complex in composition, electromagnetic parameters needing to be measured during maintenance are many, frequency, power, voltage, waveform and other measurements are involved, signal sources, frequency spectrometers, power meters, oscilloscopes, multimeters and other test instruments are needed, and at present, two methods are mainly used for radar equipment maintenance.
The other is to build a test system by adopting a signal source, a frequency spectrograph, a power meter, an oscilloscope and various test instruments, and adopts a cabinet type structure, so that the cabinet is mainly used for indoor test because the cabinet is inconvenient to move.
The other is to adopt independent instruments, each instrument is carried and used separately, and the instrument can be used for independent testing in an external field, but the operation is complex when a plurality of instruments are required to be combined for use.
At present, a comprehensive test instrument is also provided, the interior of the instrument contains a plurality of different test function modules, but the instrument has large volume and less functions and cannot meet the requirements of comprehensive test in an external field, and the interior of the instrument simply integrates a plurality of modularized instruments into one case, so that the redundancy is high, the problems of high cost, low efficiency, time consumption and the like exist, and a cabinet type test system is inconvenient to move and is mainly used for indoor test; when a plurality of independent instruments are used for testing complex parameters, a plurality of instruments are required to be combined for use, and the operation is complex; the comprehensive test instrument is only a plurality of modular instruments are simply integrated in one case, but the redundancy is high, the size is large, and the use is inconvenient.
Therefore, a multifunctional high-integration electromagnetic signal comprehensive detection device and method are needed.
Disclosure of Invention
In order to solve the problems, the invention provides a multifunctional high-integration electromagnetic signal comprehensive detection device and method, which can reduce the number of hardware, reduce the volume, reduce the cost and are convenient to carry.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a multifunctional high-integration electromagnetic signal comprehensive detection device, including:
the device comprises an analog part and a digital part, wherein the analog part is used for realizing a measuring channel with various measuring functions, the digital part carries out data processing on intermediate frequency signals output by the analog part and displays results, the analog part comprises a signal generating channel module, and a wide-band signal is generated through a frequency synthesis unit.
Furthermore, the signal generation channel module also performs amplitude extension on the broadband signal through a power amplification unit; and the expanded signal amplitude is accurately controlled by the radio frequency amplitude stabilizing control unit and then output.
Furthermore, the spectrum measurement channel module adjusts the amplitude of the input signal to be within the measurement range through the radio frequency amplitude conditioning unit, and sends the input signal to the mixing unit for down-mixing, so that the input signal is changed into an intermediate frequency signal with fixed frequency.
Furthermore, the frequency spectrum measurement channel module further comprises a filtering unit, which is used for filtering the interference clutter output by the frequency mixing unit; and the intermediate frequency conditioning unit is used for conditioning the amplitude of the filtered signal and changing the amplitude of the signal into the range of the AD conversion unit.
Furthermore, the power measurement channel module comprises a radio frequency detection unit, which is used for detecting an input signal into an intermediate frequency signal; and the intermediate frequency amplitude conditioning unit is used for conditioning the amplitude of the intermediate frequency signal and changing the signal amplitude into the measuring range of the AD conversion unit.
Furthermore, the waveform measurement channel module realizes impedance matching by using the impedance conversion unit, realizes range selection by using the amplitude conditioning unit, and changes the signal amplitude into the range of the AD conversion unit.
Furthermore, the voltage measurement channel module realizes range selection by using the proportional conversion unit and changes the signal amplitude into the range of the AD conversion unit.
Furthermore, in the digital part, a switch selection unit is used for receiving the intermediate frequency signal output by the analog part and sending the intermediate frequency signal to an AD conversion unit, the AD conversion unit converts the signal into a digital signal and then sends the digital signal to a data processing unit, and the data processing unit carries out related data processing according to the measurement function.
Furthermore, in the digital part, after the data processing unit performs related data processing according to the measurement function, the result is sent to the CPU control module, the CPU control module is used for controlling the switch selection unit, selecting a proper channel according to the measurement function, controlling the data processing unit to select a proper processing algorithm, and displaying the result of the data processing.
A multifunctional high-integration electromagnetic signal comprehensive detection method comprises the following steps:
the signals respectively pass through a plurality of measuring channels of the analog part, respectively pass through the signal generating channel module, the frequency spectrum measuring channel module, the power measuring channel module, the waveform measuring channel module and the voltage measuring channel module to realize signal conversion, and intermediate frequency signals output by the analog part are selected by the digital part and are subjected to data processing, and then results are displayed.
Compared with the prior art, the invention has the beneficial effects that:
the multifunctional high-integration electromagnetic signal comprehensive detection device is provided aiming at the conditions of multiple instruments, large volume and inconvenient moving required by the outfield maintenance of radar equipment, and has the functions of signal generation, frequency spectrum analysis, power measurement, waveform measurement, voltage measurement and the like;
the comprehensive detection device is divided into an analog part and a digital part, various measurement channels of the analog part are independent, various measurement functions of the digital part are shared through switch selection, the number of hardware can be greatly reduced, the size is reduced, and the cost is reduced.
Advantages of additional aspects will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic structural diagram provided in this embodiment.
Detailed Description
The invention is further described with reference to the following figures and examples.
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only terms of relationships determined for convenience of describing structural relationships of the parts or elements of the present invention, and are not intended to refer to any parts or elements of the present invention, and are not to be construed as limiting the present invention.
In the present invention, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and may be a fixed connection, or may be an integral connection or a detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be determined according to specific situations by persons skilled in the relevant scientific or technical field, and are not to be construed as limiting the present invention.
Example 1
In a first aspect, the present invention provides a multifunctional high-integration electromagnetic signal comprehensive detection device, including: the device comprises an analog part and a digital part, wherein the analog part is used for realizing a measuring channel with various measuring functions, the digital part carries out data processing on intermediate frequency signals output by the analog part and displays results, the analog part comprises a signal generating channel module, and a wide-band signal is generated through a frequency synthesis unit. The signal generation channel module also comprises a power amplification unit which is used for carrying out amplitude expansion on the broadband signal; and the expanded signal amplitude is accurately controlled by the radio frequency amplitude stabilizing control unit and then output.
The frequency spectrum measurement channel module adjusts the amplitude of an input signal to be within a measurement range through the radio frequency amplitude conditioning unit, and sends the input signal to the frequency mixing unit for down-mixing, so that the input signal is changed into an intermediate frequency signal with fixed frequency.
The frequency spectrum measurement channel module also comprises a filtering unit which is used for filtering interference clutter output by the frequency mixing unit; and the intermediate frequency conditioning unit is used for conditioning the amplitude of the filtered signal and changing the amplitude of the signal into the range of the AD conversion unit.
The power measurement channel module comprises a radio frequency detection unit, a power measurement unit and a power measurement unit, wherein the radio frequency detection unit is used for detecting an input signal into an intermediate frequency signal; and the intermediate frequency amplitude conditioning unit is used for conditioning the amplitude of the intermediate frequency signal and changing the signal amplitude into the measuring range of the AD conversion unit.
The waveform measurement channel module realizes impedance matching by using the impedance conversion unit, realizes range selection by using the amplitude conditioning unit, and changes the signal amplitude into the range of the AD conversion unit.
The voltage measurement channel module realizes range selection by using the proportional conversion unit and changes the signal amplitude into the range of the AD conversion unit.
In the digital part, a switch selection unit is used for receiving intermediate frequency signals output by the analog part and sending the intermediate frequency signals to an AD conversion unit, the AD conversion unit converts the signals into digital signals and sends the digital signals to a data processing unit, the data processing unit carries out related data processing according to a measurement function and sends results to a CPU control module, the CPU control module is used for controlling the switch selection unit, selecting a proper channel according to the measurement function and controlling the data processing unit to select a proper processing algorithm and display the results of the data processing.
In particular, the method comprises the following steps of,
the electromagnetic signal comprehensive detection device has 5 measurement functions of signal generation, spectrum analysis, power measurement, waveform measurement and voltage measurement, and as shown in fig. 1, the electromagnetic signal comprehensive detection device has 5 external interfaces which are respectively a signal generation interface, a spectrum measurement interface, a power measurement interface, a waveform measurement interface and a voltage measurement interface and correspond to the 5 measurement functions. The electromagnetic signal comprehensive detection device is divided into an analog part and a digital part.
The analog part is used for realizing a measuring channel with 5 measuring functions, in a signal generating channel, firstly, a frequency synthesis unit is used for generating a broadband signal, a power amplification unit is used for realizing signal amplitude expansion, and a radio frequency amplitude stabilizing control unit is used for accurately controlling the signal amplitude and then outputting the signal amplitude; in the frequency spectrum measurement channel, a radio frequency amplitude conditioning unit adjusts the amplitude of an input signal to be within a measurement range, the input signal is sent to a mixing unit for down-mixing, the signal is changed into an intermediate frequency signal with fixed frequency, a filtering unit is used for filtering interference clutter output by the mixing unit, the intermediate frequency conditioning unit performs amplitude conditioning on the filtered signal, and the signal amplitude is changed to be within the range of an AD conversion unit; in the power measurement channel, a radio frequency detection unit detects an input signal and converts the input signal into an intermediate frequency signal, an intermediate frequency amplitude conditioning unit conditions the amplitude of the intermediate frequency signal and converts the amplitude of the signal into the range of an AD conversion unit; in the waveform measuring channel, an impedance conversion unit realizes impedance matching, an amplitude conditioning unit realizes range selection, and the signal amplitude is changed into the range of an AD conversion unit; in the voltage measuring channel, the proportional conversion unit realizes range selection and changes the signal amplitude into the range of the AD conversion unit.
In the digital part, the intermediate frequency signal output by the analog part enters a switch selection unit, when a user selects a certain measurement function, the switch selection unit is communicated with the intermediate frequency signal, then the intermediate frequency signal enters an AD conversion unit, the signal is converted into a digital signal and then is sent to a data processing unit, the data processing unit carries out related data processing according to the measurement function and sends the result to a CPU control module, the CPU control module is used for controlling the switch selection unit, a proper channel is selected according to the measurement function, the data processing unit is controlled to select a proper processing algorithm, and the data processing result is displayed.
Example 2.
A multifunctional high-integration electromagnetic signal comprehensive detection method comprises the following steps:
the signals respectively pass through a plurality of measuring channels of the analog part, respectively pass through the signal generating channel module, the frequency spectrum measuring channel module, the power measuring channel module, the waveform measuring channel module and the voltage measuring channel module to realize signal conversion, and intermediate frequency signals output by the analog part are selected by the digital part and are subjected to data processing, and then results are displayed.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. The utility model provides a multi-functional high integrated level's electromagnetic signal comprehensive testing device which characterized in that includes: the device comprises an analog part and a digital part, wherein the analog part is used for realizing a measuring channel with various measuring functions, the digital part carries out data processing on intermediate frequency signals output by the analog part and displays results, the analog part comprises a signal generating channel module, and a wide-band signal is generated through a frequency synthesis unit.
2. The multifunctional high-integration electromagnetic signal comprehensive detection device of claim 1, wherein the signal generation channel module further comprises a power amplification unit for performing amplitude expansion on the broadband signal; and the expanded signal amplitude is accurately controlled by the radio frequency amplitude stabilizing control unit and then output.
3. The apparatus according to claim 1, wherein the spectrum measurement channel module adjusts the amplitude of the input signal to a measurement range through the rf amplitude conditioning unit, and sends the input signal to the frequency mixing unit for down-mixing, so as to convert the input signal into an intermediate frequency signal with a fixed frequency.
4. The multifunctional high-integration electromagnetic signal comprehensive detection device of claim 3, wherein the spectrum measuring channel module further comprises a filtering unit for filtering interference noise outputted by the frequency mixing unit; and the intermediate frequency conditioning unit is used for conditioning the amplitude of the filtered signal and changing the amplitude of the signal into the range of the AD conversion unit.
5. The multifunctional high-integration electromagnetic signal comprehensive detection device of claim 1, wherein the power measurement channel module comprises a radio frequency detection unit for detecting an input signal into an intermediate frequency signal; and the intermediate frequency amplitude conditioning unit is used for conditioning the amplitude of the intermediate frequency signal and changing the signal amplitude into the measuring range of the AD conversion unit.
6. The multifunctional high-integration electromagnetic signal comprehensive detection device of claim 1, wherein the waveform measurement channel module utilizes an impedance conversion unit to realize impedance matching, utilizes an amplitude conditioning unit to realize range selection, and changes the signal amplitude into the range of an AD conversion unit.
7. The multifunctional high-integration electromagnetic signal comprehensive detection device of claim 1, wherein the voltage measurement channel module utilizes a proportional conversion unit to realize range selection, and the signal amplitude is changed into the range of an AD conversion unit.
8. The multifunctional electromagnetic signal comprehensive detection device with high integration level as claimed in claim 7, wherein in the digital part, the switch selection unit is used for receiving the intermediate frequency signal output by the analog part and sending the intermediate frequency signal to the AD conversion unit, the AD conversion unit converts the signal into a digital signal and sends the digital signal to the data processing unit, and the data processing unit performs related data processing according to the measurement function and sends the result to the CPU control module.
9. The multifunctional electromagnetic signal comprehensive detection device with high integration level as claimed in claim 8, wherein said CPU control module is used for controlling the switch selection unit, selecting a suitable channel according to the measurement function, controlling the data processing unit to select a suitable processing algorithm, and displaying the result of the data processing.
10. A multifunctional high-integration electromagnetic signal comprehensive detection method is characterized by comprising the following steps:
the signals respectively pass through a plurality of measuring channels of the analog part, respectively pass through the signal generating channel module, the frequency spectrum measuring channel module, the power measuring channel module, the waveform measuring channel module and the voltage measuring channel module to realize signal conversion, and intermediate frequency signals output by the analog part are selected by the digital part and are subjected to data processing, and then results are displayed.
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| CN202111194216.2A CN113933799A (en) | 2021-10-13 | 2021-10-13 | Multifunctional high-integration electromagnetic signal comprehensive detection device and method |
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