CN111536906B - Millimeter wave/infrared composite simulator coaxiality calibration device and operation method thereof - Google Patents
Millimeter wave/infrared composite simulator coaxiality calibration device and operation method thereof Download PDFInfo
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- CN111536906B CN111536906B CN202010294702.0A CN202010294702A CN111536906B CN 111536906 B CN111536906 B CN 111536906B CN 202010294702 A CN202010294702 A CN 202010294702A CN 111536906 B CN111536906 B CN 111536906B
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- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
Abstract
The invention discloses a coaxiality calibration device of a millimeter wave/infrared composite simulator and an operation method thereof, wherein the device comprises a millimeter wave electric axis detection module, a visible light/infrared light conversion module and an infrared light imaging module; the millimeter wave electric axis detection module is used for detecting a millimeter wave electric axis of a millimeter wave signal sent by the millimeter wave/infrared composite simulator and converting the millimeter wave electric axis to obtain a visible light optical axis coaxial with the millimeter wave electric axis; the visible light/infrared light conversion module is used for forming infrared light coaxial with the optical axis of the visible light; the infrared light imaging module is used for receiving infrared light and infrared light signals sent by the millimeter wave/infrared composite simulator and carrying out infrared light imaging so as to carry out coaxiality calibration on the millimeter wave/infrared composite simulator, and the problem of coaxiality calibration of the millimeter wave/infrared composite simulator is solved.
Description
Technical Field
The invention relates to the technical field of millimeter wave/infrared composite simulators. And more particularly, to a coaxiality calibration apparatus for a millimeter wave/infrared composite simulator and an operation method thereof.
Background
The millimeter wave/infrared composite (compact range) simulator can simultaneously generate millimeter wave signals and infrared signals, the millimeter wave signals and the infrared signals are combined by the millimeter wave/infrared compact range beam combiner to form a coaxial millimeter wave/infrared composite simulation target, and a real target with millimeter wave radiation characteristics and infrared radiation characteristics is simulated.
The coaxiality of millimeter wave signals and infrared signals sent by the millimeter wave/infrared composite compact range simulator is an important index of the composite simulator, and as millimeter wave target radiation and infrared target radiation belong to different electromagnetic wave bands and are not in the range of a receiving band of a human eye, the coaxiality calibration of the millimeter wave/infrared composite compact range simulator has technical difficulties.
Disclosure of Invention
The invention aims to provide a device for calibrating the coaxiality of a millimeter wave/infrared composite compact range simulator, which solves the problem of calibrating the coaxiality of the millimeter wave/infrared composite simulator. Another object of the present invention is to provide a method for operating a device for calibrating the coaxiality of a millimeter wave/infrared composite compact range simulator.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention discloses a coaxiality calibration device of a millimeter wave/infrared composite simulator, which comprises a millimeter wave electric axis detection module, a visible light/infrared light conversion module and an infrared light imaging module;
the millimeter wave electric axis detection module is used for detecting a millimeter wave electric axis of a millimeter wave signal sent by the millimeter wave/infrared composite simulator and converting the millimeter wave electric axis to obtain a visible light optical axis coaxial with the millimeter wave electric axis;
the visible light/infrared light conversion module is used for forming infrared light coaxial with the optical axis of the visible light;
the infrared light imaging module is used for receiving infrared light and an infrared light signal sent by the millimeter wave/infrared composite simulator and carrying out infrared light imaging so as to carry out coaxiality calibration on the millimeter wave/infrared composite simulator.
Preferably, the millimeter wave electric axis detection module comprises a millimeter wave receiving antenna, a theodolite and a theodolite reflector;
the millimeter wave receiving antenna is used for receiving a millimeter wave signal sent by the millimeter wave/infrared composite simulator and detecting a millimeter wave electric axis of the millimeter wave signal;
the theodolite reflector is vertically arranged relative to a millimeter wave electric axis obtained by detection of the millimeter wave receiving antenna and used for reflecting a millimeter wave signal sent by the millimeter wave/infrared composite simulator to the theodolite;
the theodolite is used for converting the millimeter wave electric axis based on an auto-collimation principle to obtain a visible light optical axis coaxial with the millimeter wave electric axis.
Preferably, the visible light/infrared light conversion module comprises a visible light imager, an optical path folding reflector and a visible light/infrared collimator;
the visible light/infrared collimator is used for emitting coaxial visible light and infrared light;
the light path deflection reflector is used for reflecting coaxial visible light and infrared light to form reflected light;
the visible light imager is coaxial with the visible light optical axis and is used for performing visible light imaging on the visible light of the visible light optical axis and the reflected light so as to adjust the light emitting axis of the visible light/infrared collimator to enable the reflected light to coincide with the visible light optical axis and enable the visible light/infrared collimator to form infrared light coaxial with the visible light optical axis.
Preferably, the infrared light imaging module comprises a thermal infrared imager.
Preferably, the millimeter wave electric axis detection module, the light path turning reflector, the visible light imager and the infrared light imaging module are sequentially arranged along the axis of the millimeter wave/infrared composite simulator and can move along the direction perpendicular to the axis of the millimeter wave/infrared composite simulator.
Preferably, the visible light/infrared collimator is perpendicular to the axis of the millimeter wave/infrared composite simulator, and the included angle formed between the light path turning reflector and the axis of the millimeter wave/infrared composite simulator is 45 °.
Preferably, the millimeter wave electric axis detection module, the visible light/infrared light conversion module and the infrared light imaging module are arranged on the measurement positioning adjustment table.
The invention also discloses an operation method of the coaxiality calibration device of the millimeter wave/infrared composite simulator, which comprises the following steps:
detecting a millimeter wave electric axis of a millimeter wave signal sent by the millimeter wave/infrared composite simulator and converting the millimeter wave electric axis to obtain a visible light optical axis coaxial with the millimeter wave electric axis;
forming infrared light coaxial with the optical axis of the visible light;
and receiving infrared light and an infrared light signal sent by the millimeter wave/infrared composite simulator, and carrying out infrared light imaging to calibrate the coaxiality of the millimeter wave/infrared composite simulator.
Preferably, the detecting a millimeter wave electric axis of the millimeter wave signal sent by the millimeter wave/infrared composite simulator and converting the millimeter wave electric axis to obtain a visible light optical axis coaxial with the millimeter wave electric axis specifically includes:
receiving a millimeter wave signal sent by the millimeter wave/infrared composite simulator through the millimeter wave receiving antenna, and detecting a millimeter wave electric axis of the millimeter wave signal;
a theodolite reflector is vertically arranged relative to a millimeter wave electric axis obtained by detection of the millimeter wave receiving antenna, and a millimeter wave signal sent by the millimeter wave/infrared composite simulator is reflected to the theodolite;
and converting the millimeter wave electric axis by the theodolite based on an auto-collimation principle to obtain a visible light optical axis coaxial with the millimeter wave electric axis.
Preferably, the forming of the infrared light coaxial with the optical axis of the visible light specifically includes:
adjusting the position of a visible light imager according to visible light imaging of visible light of a visible light optical axis on the visible light imager so that the visible light imager and the visible light optical axis are coaxially arranged;
emitting coaxial visible light and infrared light through a visible light/infrared collimator;
reflecting the coaxial visible light and infrared light through the light path deflection reflector to form reflected light;
performing visible light imaging on the visible light optical axis and the reflected light by the visible light imager;
adjusting the light emitting axis of the visible light/infrared collimator to enable the reflected light to coincide with the visible light optical axis;
and enabling the visible light/infrared parallel light tube to form infrared light coaxial with the optical axis of the visible light.
The invention converts the millimeter wave electric axis into the visible light optical axis coaxial with the millimeter wave electric axis by detecting the millimeter wave electric axis of the millimeter wave signal sent by the millimeter wave/infrared composite simulator. And further obtaining a visible light optical axis in a visible light imaging mode, and forming infrared light coaxial with the visible light optical axis, wherein the infrared light is coaxial with a millimeter wave signal sent by the millimeter wave/infrared composite simulator. The coaxiality of the millimeter wave signal and the infrared light signal sent by the millimeter wave/infrared composite simulator can be determined by carrying out infrared light imaging on the infrared light coaxial with the millimeter wave signal and the infrared light signal sent by the millimeter wave/infrared composite simulator, and coaxiality calibration is carried out.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is a diagram illustrating one of the structures of a coaxiality calibration apparatus for a millimeter wave/infrared composite simulator according to an embodiment of the present invention;
fig. 2 shows a second structure diagram of a coaxiality calibration apparatus of a millimeter wave/infrared composite simulator according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating one embodiment of a method for operating a device for calibrating the coaxiality of a millimeter wave/infrared composite simulator according to the present invention;
FIG. 4 is a second flowchart illustrating a method of operating a device for calibrating coaxiality of a millimeter wave/infrared composite simulator according to a second embodiment of the present invention;
fig. 5 is a third flowchart illustrating an operation method of the device for calibrating coaxiality of a millimeter wave/infrared composite simulator according to an embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the invention, the invention is further described below with reference to preferred embodiments and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
The millimeter wave/infrared composite compact field simulator mainly comprises an infrared target simulator, a millimeter wave transmitting antenna and a compact field beam combiner. The millimeter wave reflecting surface of the compact field beam combiner is an off-axis paraboloid, and the center of the transmitting opening surface of the millimeter wave transmitting antenna is positioned at the focus of the off-axis paraboloid. The coaxiality of a millimeter wave signal and an infrared signal sent by the millimeter wave/infrared composite compact range simulator is an important index of the composite simulator, and the coaxiality of the millimeter wave signal and the infrared signal is the deviation between the electric axis of the millimeter wave signal and the optical axis of the infrared signal. As the millimeter wave target radiation and the infrared target radiation belong to different electromagnetic wave bands and are not in the range of the receiving band of human eyes, the coaxiality calibration of the millimeter wave/infrared composite compact range simulator has technical difficulty.
In order to solve the above problem, according to an aspect of the present invention, the present embodiment discloses a device for calibrating the coaxiality of a millimeter wave/infrared composite simulator 9. As shown in fig. 1, in this embodiment, the coaxiality calibration apparatus includes a millimeter wave electric axis detection module 11, a visible light/infrared light conversion module 12, and an infrared light imaging module 13.
The millimeter wave electric axis detection module 11 is configured to detect a millimeter wave electric axis of a millimeter wave signal sent by the millimeter wave/infrared composite simulator 9 and convert the millimeter wave electric axis to obtain a visible light optical axis coaxial with the millimeter wave electric axis;
the visible light/infrared light conversion module 12 is configured to form infrared light coaxial with the visible light optical axis;
the infrared light imaging module 13 is configured to receive infrared light and an infrared light signal sent by the millimeter wave/infrared composite simulator 9, and perform infrared light imaging to calibrate the coaxiality of the millimeter wave/infrared composite simulator 9.
The invention converts the millimeter wave electric axis into the visible light optical axis coaxial with the millimeter wave electric axis by detecting the millimeter wave electric axis of the millimeter wave signal sent by the millimeter wave/infrared composite simulator 9. Further, the visible light optical axis is obtained by means of visible light imaging, and infrared light coaxial with the visible light optical axis is formed, so that the infrared light is coaxial with the millimeter wave signal emitted by the millimeter wave/infrared composite simulator 9. The coaxiality of the millimeter wave signal and the infrared light signal sent by the millimeter wave/infrared composite simulator 9 can be determined by carrying out infrared light imaging on the infrared light coaxial with the millimeter wave signal and the infrared light signal sent by the millimeter wave/infrared composite simulator 9, and coaxiality calibration is carried out.
In a preferred embodiment, the millimeter wave electric axis detection module 11 comprises a millimeter wave receiving antenna 1, a theodolite 3 and a theodolite reflector 4.
The millimeter wave receiving antenna 1 is configured to receive a millimeter wave signal sent by the millimeter wave/infrared composite simulator 9, and detect a millimeter wave electric axis of the millimeter wave signal.
The theodolite reflector 4 is arranged perpendicularly to a millimeter wave electric axis detected by the millimeter wave receiving antenna 1, and is used for reflecting millimeter wave signals sent by the millimeter wave/infrared composite simulator 9 to the theodolite 3.
The theodolite 3 is used for converting the millimeter wave electric axis based on an auto-collimation principle to obtain a visible light optical axis coaxial with the millimeter wave electric axis.
Specifically, the millimeter wave receiving antenna 1 may receive a millimeter wave signal sent by the millimeter wave/infrared composite simulator 9, and adjust the setting direction of the millimeter wave receiving antenna 1 according to the signal characteristics of the received millimeter wave signal, so that the millimeter wave receiving antenna 1 and the millimeter wave electric axis of the millimeter wave signal are coaxially arranged. The positioning plane of the millimeter wave receiving antenna 1 is perpendicular to the millimeter wave electric axis. The theodolite reflector 4 is arranged between the millimeter wave receiving antenna 1 and the millimeter wave/infrared composite simulator 9 and is parallel to the positioning surface of the millimeter wave receiving antenna 1, and the theodolite 3 is arranged between the theodolite reflector 4 and the millimeter wave/infrared composite simulator 9, so that the plane of the theodolite reflector 4 is perpendicular to the millimeter wave electric axis, and millimeter wave signals sent by the millimeter wave/infrared composite simulator 9 can be reflected to the theodolite 3. The theodolite 3 can further convert a millimeter wave electric axis of the millimeter wave signal reflected by the theodolite reflector 4 into visible light, and a visible light optical axis of the visible light is coaxial with the millimeter wave electric axis.
In a preferred embodiment, the visible light/infrared light conversion module 12 includes a visible light imager 5, an optical path folding mirror 6, and a visible light/infrared collimator 7.
The visible/infrared collimator 7 is used to emit coaxial visible light and infrared light.
The optical path deflecting mirror 6 is used for reflecting the coaxial visible light and infrared light to form reflected light.
The visible light imager 5 is disposed coaxially with the visible light optical axis, and configured to perform visible light imaging on the visible light of the visible light optical axis and the reflected light to adjust the light emitting axis of the visible light/infrared collimator 7 so that the reflected light coincides with the visible light optical axis, so that the visible light/infrared collimator 7 forms infrared light coaxial with the visible light optical axis.
Specifically, after the theodolite 3 forms visible light, the light path turning mirror 6 and the millimeter wave receiving antenna 1 can be moved away, so that the visible light is directly transmitted to the visible light imager 5. The position of the visible light imager 5 is adjusted according to the visible light imaging of the visible light on the visible light imager 5 so that the visible light imager 5 is arranged coaxially with the visible light optical axis. Further, the coaxial visible light and infrared light emitted by the visible light/infrared collimator 7 are reflected by the optical path deflecting mirror 6 to form reflected light, and the visible light in the reflected light can be imaged in the visible light imager 5. The position of the visible/infrared collimator 7 can be adjusted according to the visible light reflected by the visible light imager 5 and the visible light emitted by the theodolite 3, so that the optical axis directions of the coaxial visible light and infrared light emitted by the visible/infrared collimator can be adjusted. When the reflected light and the visible light formed by the theodolite 3 are consistent with each other in the visible light imager 5, the optical axis of the visible light and the infrared light emitted by the visible light/infrared collimator 7 is coaxial with the millimeter wave electric axis. Then, the deviation between the electric axis of the millimeter wave signal sent by the millimeter wave/infrared composite simulator 9 and the optical axis of the infrared light signal can be determined according to the infrared light image of the infrared light signal sent by the visible light/infrared collimator 7 and the infrared light signal sent by the millimeter wave/infrared composite simulator 9 in the infrared light imaging module 13, and the coaxiality of the electric axis of the millimeter wave signal sent by the millimeter wave/infrared composite simulator 9 and the optical axis of the infrared light signal can be determined for coaxiality calibration.
In a preferred embodiment, the infrared light imaging module 13 comprises a thermal infrared imager 2. Specifically, the thermal infrared imager 2 may perform infrared imaging on reflected light and infrared light signals formed by reflecting infrared light emitted by the visible light/infrared collimator 7. In other embodiments, other devices may be used to realize infrared light imaging, and the present invention is not limited thereto.
In a preferred embodiment, the millimeter wave electric axis detection module 11, the optical path turning mirror 6, the visible light imager 5, and the infrared light imaging module 13 are sequentially disposed along an axis of the millimeter wave/infrared hybrid simulator 9, and can move in a direction perpendicular to the axis of the millimeter wave/infrared hybrid simulator 9, so that components of each module can be adjusted in position and angle. More preferably, the millimeter wave electric axis detection module 11, the optical path turning reflector 6, the visible light imager 5, and the infrared light imaging module 13 are sequentially arranged along a direction from near to far away from the millimeter wave/infrared composite simulator 9, so that the positions of the components of each module satisfy signal transmission.
For example, in a specific example, the millimeter wave electric axis detection module 11 includes the millimeter wave receiving antenna 1, the theodolite 3, and the theodolite mirror 4, and the visible light/infrared light conversion module 12 includes the visible light imager 5, the optical path folding mirror 6, and the visible light/infrared collimator 7. The infrared imaging module 13 includes a thermal infrared imager 2. The millimeter wave receiving antenna 1, the theodolite 3, the theodolite reflector 4, the visible light imager 5, the light path turning reflector 6 and the thermal infrared imager 2 are sequentially arranged along the direction from near to far away from the distance of the millimeter wave/infrared composite simulator 9.
In a preferred embodiment, the visible light/infrared collimator 7 is disposed perpendicular to the axis of the millimeter wave/infrared composite simulator 9, and the optical path turning reflector 6 forms an included angle of 45 ° with the axis of the millimeter wave/infrared composite simulator 9. By setting the positions and angles of the visible light/infrared collimator 7 and the optical path turning reflector 6, the infrared light and the visible light emitted by the visible light/infrared collimator 7 form reflected light through the optical path turning reflector 6, and then the reflected light can be received by the visible light imager 5 or the infrared light imaging module 13.
In a preferred embodiment, the millimeter wave electric axis detection module 11, the visible light/infrared light conversion module 12 and the infrared light imaging module 13 are disposed on the measurement positioning adjustment table 8. The measurement positioning adjusting table 8 can provide references for positioning and adjusting position angles of all the components, so that the receiving devices of different electromagnetic wave bands can realize transmission of axes, and a function of coaxiality calibration is realized.
When the millimeter wave/infrared composite simulator 9 is coaxially calibrated, the millimeter wave receiving antenna 1, the theodolite 3, the theodolite reflector 4, the visible light imager 5, the light path turning reflector 6 and the thermal infrared imager 2 are sequentially installed on the installation axis. The installation axis coincides with the axis of the millimeter wave/infrared composite simulator 9. The millimeter wave receiving antenna 1, the theodolite 3, the theodolite reflector 4, the visible light imager 5, the light path turning reflector 6 and the thermal infrared imager 2 are arranged on a measurement positioning adjusting table 8 and can move along the direction vertical to the installation axis.
Firstly, the theodolite 3 is moved out of the installation axis, the millimeter wave electric axis of the millimeter wave/infrared composite simulator 9 is found by the millimeter wave receiving antenna 1, and the position of the millimeter wave receiving antenna 1 is fixed. Then, the theodolite 3 is moved into the installation axis, the theodolite reflector 4 is utilized, the front positioning opening surface of the millimeter wave receiving antenna 1 is taken as an electric axis reference, the optical axis of the theodolite 3 is adjusted to be coincident with the electric axis of the millimeter wave receiving antenna 1 according to the auto-collimation principle of the theodolite 3, and the theodolite 3 is fixed well. Subsequently, the millimeter wave receiving antenna 1 and the theodolite reflector 4 are moved out of the installation axis, the optical axis of visible light emitted by the theodolite 3 is taken as an axis reference, the light path turning reflector 6 is moved out of the axis, light emitted by the theodolite 3 can be received by the visible light imager 5, and the position and the angle of the visible light imager 5 are adjusted, so that the optical axis of the visible light imager 5 and the emitting axis of the theodolite 3 coincide, and the visible light imager 5 is fixed. Then the light path turning reflector 6 is moved into the axis, the mirror surface and the axis form a 45 degree angle, the visible light/infrared collimator 7 is opened, the light emitted by the visible light/infrared collimator can be received by the visible light imager 5, the visible light/infrared collimator 7 is adjusted, the optical axis of the visible light/infrared collimator 7 is overlapped with the optical axis of the visible light imager 5, and the visible light/infrared collimator 7 is fixed. And then the visible light imager 5 is moved out of the axis, the coaxial visible light/infrared light emitted by the visible light/infrared collimator 7 enters the thermal infrared imager 2 after passing through the light path deflection reflector 6, and the position and the angle of the thermal infrared imager 2 are adjusted to be overlapped with the optical axis of the visible light/infrared collimator 7. At this time, the electric axis of the millimeter wave is transmitted to the thermal infrared imager 2 through the theodolite 3, the visible light imager 5 and the visible light/infrared collimator 7, so that the coaxiality of the millimeter wave/infrared composite simulator 9 can be measured and calibrated.
Based on the same principle, the invention also discloses an operation method of the millimeter wave/infrared composite simulator 9 coaxiality calibration device in the embodiment. As shown in fig. 3, in this embodiment, the method includes:
s100: and detecting a millimeter wave electric axis of a millimeter wave signal sent by the millimeter wave/infrared composite simulator 9 and converting the millimeter wave electric axis to obtain a visible light optical axis coaxial with the millimeter wave electric axis.
S200: and forming infrared light coaxial with the optical axis of the visible light.
S300: receiving infrared light and an infrared light signal sent by the millimeter wave/infrared composite simulator 9, and performing infrared light imaging to calibrate the coaxiality of the millimeter wave/infrared composite simulator 9.
In a preferred embodiment, as shown in fig. 4, the S100 may specifically include:
s110: and receiving the millimeter wave signal sent by the millimeter wave/infrared composite simulator 9 through the millimeter wave receiving antenna 1, and detecting a millimeter wave electric axis of the millimeter wave signal.
S120: and the theodolite reflector 4 is vertically arranged relative to a millimeter wave electric axis obtained by the detection of the millimeter wave receiving antenna 1, and a millimeter wave signal sent by the millimeter wave/infrared composite simulator 9 is reflected to the theodolite 3.
S130: and converting the millimeter wave electric axis to obtain a visible light optical axis coaxial with the millimeter wave electric axis through the theodolite 3 based on an auto-collimation principle.
In a preferred embodiment, as shown in fig. 5, the S200 may specifically include:
s210: and adjusting the position of the visible light imager 5 according to the visible light imaging of the visible light optical axis on the visible light imager 5 to enable the visible light imager 5 to be coaxially arranged with the visible light optical axis.
S220: the visible light and the infrared light are emitted coaxially through the visible/infrared collimator 7.
S230: the coaxial visible light and infrared light are reflected by the optical path folding mirror 6 to form reflected light.
S240: the visible light imager 5 performs visible light imaging on the visible light optical axis and the reflected light.
S250: and adjusting the light emitting axis of the visible light/infrared collimator 7 to enable the reflected light to coincide with the visible light optical axis.
S260: the visible light/infrared parallel light tube 7 forms infrared light coaxial with the visible light optical axis.
Because the principle of solving the problems by the method is similar to that of the device, the implementation of the method can be referred to the implementation of the device, and the detailed description is omitted.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A coaxiality calibration device of a millimeter wave/infrared composite simulator is characterized by comprising a millimeter wave electric axis detection module, a visible light/infrared light conversion module and an infrared light imaging module;
the millimeter wave electric axis detection module is used for detecting a millimeter wave electric axis of a millimeter wave signal sent by the millimeter wave/infrared composite simulator and converting the millimeter wave electric axis to obtain a visible light optical axis coaxial with the millimeter wave electric axis;
the visible light/infrared light conversion module is used for forming infrared light coaxial with the optical axis of the visible light;
the infrared light imaging module is used for receiving infrared light coaxial with the visible light optical axis and an infrared light signal sent by the millimeter wave/infrared composite simulator and carrying out infrared light imaging so as to carry out coaxiality calibration on the millimeter wave/infrared composite simulator;
the millimeter wave electric axis detection module comprises a millimeter wave receiving antenna, a theodolite and a theodolite reflector.
2. The millimeter wave/infrared composite simulator coaxiality calibration device according to claim 1,
the millimeter wave receiving antenna is used for receiving a millimeter wave signal sent by the millimeter wave/infrared composite simulator and detecting a millimeter wave electric axis of the millimeter wave signal;
the theodolite reflector is vertically arranged relative to a millimeter wave electric axis obtained by detection of the millimeter wave receiving antenna and used for reflecting a millimeter wave signal sent by the millimeter wave/infrared composite simulator to the theodolite;
the theodolite is used for converting the millimeter wave electric axis based on an auto-collimation principle to obtain a visible light optical axis coaxial with the millimeter wave electric axis.
3. The device for calibrating the coaxiality of the millimeter wave/infrared composite simulator according to claim 1, wherein the visible light/infrared light conversion module comprises a visible light imager, a light path turning reflector and a visible light/infrared collimator;
the visible light/infrared collimator is used for emitting coaxial visible light and infrared light;
the light path deflection reflector is used for reflecting coaxial visible light and infrared light to form reflected light;
the visible light imager is coaxial with the visible light optical axis and is used for performing visible light imaging on the visible light of the visible light optical axis and the reflected light so as to adjust the light emitting axis of the visible light/infrared collimator to enable the reflected light to coincide with the visible light optical axis and enable the visible light/infrared collimator to form infrared light coaxial with the visible light optical axis.
4. The millimeter wave/infrared composite simulator coaxiality calibration device according to claim 1, wherein the infrared light imaging module comprises a thermal infrared imager.
5. The device for calibrating the coaxiality of the millimeter wave/infrared composite simulator according to claim 3, wherein the millimeter wave electric axis detection module, the light path turning reflector, the visible light imager and the infrared light imaging module are sequentially arranged along the axis of the millimeter wave/infrared composite simulator and can move in a direction perpendicular to the axis of the millimeter wave/infrared composite simulator.
6. The device for calibrating the coaxiality of the millimeter wave/infrared composite simulator according to claim 5, wherein the visible light/infrared collimator is arranged perpendicular to the axis of the millimeter wave/infrared composite simulator, and the included angle formed by the light path turning reflector and the axis of the millimeter wave/infrared composite simulator is 45 °.
7. The device for calibrating the coaxiality of the millimeter wave/infrared composite simulator according to claim 1, wherein the millimeter wave electric axis detection module, the visible light/infrared light conversion module and the infrared light imaging module are arranged on a measurement positioning adjustment table.
8. An operation method of the millimeter wave/infrared composite simulator coaxiality calibration apparatus according to any one of claims 1 to 7, comprising:
detecting a millimeter wave electric axis of a millimeter wave signal sent by the millimeter wave/infrared composite simulator and converting the millimeter wave electric axis to obtain a visible light optical axis coaxial with the millimeter wave electric axis;
forming infrared light coaxial with the optical axis of the visible light;
and receiving infrared light coaxial with the visible light optical axis and an infrared light signal sent by the millimeter wave/infrared composite simulator, and carrying out infrared light imaging to calibrate the coaxiality of the millimeter wave/infrared composite simulator.
9. The operation method of the device for calibrating coaxiality of a millimeter wave/infrared composite simulator according to claim 8, wherein the step of detecting a millimeter wave electric axis of a millimeter wave signal emitted by the millimeter wave/infrared composite simulator and converting the millimeter wave electric axis to obtain a visible light optical axis coaxial with the millimeter wave electric axis specifically comprises:
receiving a millimeter wave signal sent by the millimeter wave/infrared composite simulator through the millimeter wave receiving antenna, and detecting a millimeter wave electric axis of the millimeter wave signal;
a theodolite reflector is vertically arranged relative to a millimeter wave electric axis obtained by detection of the millimeter wave receiving antenna, and a millimeter wave signal sent by the millimeter wave/infrared composite simulator is reflected to the theodolite;
and converting the millimeter wave electric axis by the theodolite based on an auto-collimation principle to obtain a visible light optical axis coaxial with the millimeter wave electric axis.
10. The operation method of the device for calibrating coaxiality of a millimeter wave/infrared composite simulator according to claim 8, wherein the forming of the infrared light coaxial with the optical axis of the visible light specifically comprises:
adjusting the position of a visible light imager according to visible light imaging of visible light of a visible light optical axis on the visible light imager so that the visible light imager and the visible light optical axis are coaxially arranged;
emitting coaxial visible light and infrared light through a visible light/infrared collimator;
reflecting the coaxial visible light and infrared light through the light path deflection reflector to form reflected light;
performing visible light imaging on the visible light optical axis and the reflected light by the visible light imager;
adjusting the light emitting axis of the visible light/infrared collimator to enable the reflected light to coincide with the visible light optical axis;
and enabling the visible light/infrared parallel light tube to form infrared light coaxial with the optical axis of the visible light.
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