Panoramic imaging spectrometer occultation atmosphere remote sensing detection system and detection method
Through the use of the panoramic imaging spectrometer system, the problem of difficulty in observing shadow areas is solved, and all-round, large field of view is achieved with high-efficiency spectral signal acquisition and low-blue and high-resolution imaging, which is suitable for studying celestial changes and atmospheric energy exchange.
Patent Information
- Application Number
- CN202310786284.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-29
- Publication Date
- 2024-12-31
AI Technical Summary
The existing atmospheric remote sensing technology has difficulty in observing in shadowed areas, resulting in low signal-to-noise ratio and making it difficult to achieve all-weather observations, especially when studying periodic changes and emergencies of celestial bodies.
The panoramic imaging spectrometer system is adopted, including a panoramic camera, collimation unit, polarizer and acousto-optical tuneable filter to form a ring occult field of view, and the full band is quickly tuned and low-multiplexed through linearly polarized light and acousto-optical tuneable filter. Light, high resolution spectral imaging.
It realizes efficient, all-round and large field of spectral signal acquisition in shadowed areas, improves detection efficiency, can perform shadowed areas observations without time constraints, and provides more comprehensive and in-depth data, especially suitable for research on rapid changes and long-term A celestial phenomenon of time changing.
Smart Images
Figure CN119223896A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of atmospheric detection technology, and in particular to a panoramic imaging spectrometer occultation atmospheric remote sensing detection system and detection method. Background Art
[0002] At present, there are many technical means applied to the field of atmospheric detection, such as optical technology, chemical analysis, mass spectrometry and ultrasonic technology. Among them, using the research results of optical technology, a variety of atmospheric optical detection methods have been developed. The remote sensing technology in atmospheric optical detection technology uses the properties of the detected substances (such as aerosols, water vapor and clouds) to analyze and invert the reflection, refraction, scattering and absorption of light sources such as the sun or other stars. Different substances have different effects on spectra of different bands, so the required atmospheric parameter information can be inverted. The research of this invention is of great significance in accurately assessing the impact of global atmospheric changes, and will provide direct detection data and scientific basis for predicting and intervening in global climate change trends.
[0003] The detection methods of space-based atmospheric remote sensing are generally divided into: nadir detection, limb detection and occultation observation. These three detection methods have their own advantages and disadvantages. Among them, nadir detection is often used to detect the total amount of the atmosphere, but the vertical resolution of this method is low, and it is difficult to obtain the changes in the concentration of different atmospheric components at different altitudes. Limb detection is often used to detect the stratified changes of the atmosphere. Compared with nadir observation, limb atmospheric detection has a very high vertical resolution, and the received radiation comes from the atmosphere and will not be affected by the underlying surface, but the slice-type observation method also makes it difficult to detect the total amount of information below a certain altitude layer. Occultation observation detects the transmission spectrum of stars in the direction parallel to the tangent of the earth's surface, and inverts the atmospheric composition and content according to the spectral absorption characteristics of the atmospheric components. When the occultation is nearing the end, the star finally disappears on the horizon, and the payload will continue to move its pointing direction to the next star according to the predetermined observation plan to achieve all-weather observation. Compared with nadir detection, occultation detection has a higher vertical resolution, and multiple stars can be used as light sources for occultation observation. It is not affected by the relative position of the sun and the remote sensing instrument, and the detection space and time range is wider.
[0004] Both limb observation and nadir observation have their own advantages and disadvantages, but usually they need to be observed in brighter areas. The energy of incident solar light in shadow areas is relatively low. Conventional nadir observation and limb observation will cause the reflectivity spectral signal of the corresponding area in the image to be weak, and the noise will increase significantly, accompanied by the spectral blue shift phenomenon. The signal observed in the shadow area becomes blurred and weakened, which increases the difficulty of detecting targets in the shadow area. In order to achieve all-weather observation, observation in the shadow area is particularly important. The schematic diagram of the detection of space-based payloads in the shadow area is shown in the figure. Figure 1As shown in the figure, observations are made using the sun's scattered light in the illuminated area, and brighter stars are selected for occultation observations in the shadow area. When the occultation is nearing its end, the space-based payload will move to the next star in its pointing direction according to the predetermined observation plan to continue the occultation observation. Due to the high temperature, the radiation energy of the blue star is more concentrated in the shorter wavelength ultraviolet and blue light regions, while the peak radiation of the sun is located in the yellow light region of visible light. Since the radiation energy of the blue star is stronger and concentrated in the shorter wavelength spectral region, its spectral signal is relatively bright, so the spectrum of the blue star is usually much brighter than that of the sun in the visible spectrum. Different blue stars may have different spectral characteristics and radiation intensities, depending on their specific physical properties, temperature and chemical composition. Therefore, occultation observations of stars like blue stars are taken to solve the problems of observation difficulties in the shadow area and low signal-to-noise ratio in the shadow area, thereby realizing all-weather observations and obtaining more comprehensive and continuous data on periodic changes of celestial bodies, emergencies, and long-term evolution of the atmosphere. Summary of the invention
[0005] In view of this, it is necessary to provide a panoramic imaging spectrometer occultation atmospheric remote sensing detection system and detection method that can solve the difficulties in observing shadow areas in order to address the defects in the prior art.
[0006] To solve the above problems, this application adopts the following technical solutions:
[0007] One of the purposes of the present application is to provide a panoramic imaging spectrometer occultation atmospheric remote sensing detection system, comprising: a panoramic camera (1), a collimation unit (2), a first polarizer (3), an acousto-optic tunable filter (4), a second polarizer (5), an imaging unit (6) and a detector (7), wherein:
[0008] The panoramic camera (1) forms an annular occultation field of view with an incident light beam, the light beam emitted by the panoramic camera (1) is incident on the first polarizer (3) through the collimating unit (2), the light beam passing through the first polarizer (3) forms linearly polarized light, the linearly polarized light is incident on the acousto-optic tunable filter (4), after being modulated by the acousto-optic tunable filter (4), the light beam only generates +1-order diffracted light and is incident on the second polarizer (5), the undiffracted zero-order light is absorbed by the second polarizer (5) and then imaged on the detector (7) through the imaging unit (6), and the detector (7) receives a spectral signal of the annular occultation field of view.
[0009] In some embodiments, the panoramic camera (1) comprises a panoramic annular lens (11) and a relay lens group (12); the outer annular region of the panoramic annular lens (11) is used to introduce an annular occultation field of view; after the light beam of the annular occultation field of view is reflected by the panoramic annular lens (11), it is imaged on an image plane (13) by the relay lens group (12); and the imaging region of the image plane (13) is an annular field of view.
[0010] In some of the embodiments, the radial direction of the annular occultation field corresponds to different occultation altitudes, and the annular image corresponds to 360° all-round atmospheric data.
[0011] In some of the embodiments, the light beam of the annular occultation field is natural light with a wavelength of 200-1100nm and a bandwidth of 900nm.
[0012] In some embodiments, the first polarizer (3) and the second polarizer (5) are arranged orthogonally.
[0013] The second object of the present application is to provide a detection method of the panoramic imaging spectrometer occultation atmosphere remote sensing detection system, comprising the following steps:
[0014] The panoramic camera (1) forms an occultation field of view with an incident light beam, and the light beam emitted by the panoramic camera (1) is incident on the first polarizer (3) through the collimating unit (2);
[0015] The light beam passing through the first polarizer (3) forms linearly polarized light, and the linearly polarized light is incident on the acousto-optic tunable filter (4);
[0016] After being modulated by the acousto-optic tunable filter (4), the light beam only generates +1-order diffracted light and is incident on the second polarizer (5);
[0017] The undiffracted zero-order light is absorbed by the second polarizer (5) and then imaged on the detector (7) through the imaging unit (6), and the detector (7) receives the spectral signal of the occultation field of view.
[0018] In some embodiments, the panoramic camera (1) comprises a panoramic annular lens (11) and a relay lens group (12); the outer annular area of the panoramic annular lens (11) is used to introduce an annular occultation field of view; after the light beam of the annular occultation field of view is reflected by the panoramic annular lens (11), it is imaged on an image plane by the relay lens group (12); and the imaging area of the image plane is an annular field of view.
[0019] In some of the embodiments, the light beam of the annular occultation field is natural light with a wavelength of 200-1100nm and a bandwidth of 900nm.
[0020] In some embodiments, the first polarizer (3) and the second polarizer (5) are arranged orthogonally.
[0021] This application adopts the above technical solution, and its beneficial effects are as follows:
[0022] The present application provides a panoramic imaging spectrometer occultation atmospheric remote sensing detection system and detection method. The panoramic camera (1) forms an incident light beam into a ring-shaped occultation field of view. The light beam emitted by the panoramic camera (1) is incident on the first polarizer (3) through the collimator unit (2). The light beam passing through the first polarizer (3) forms linearly polarized light. The linearly polarized light is incident on the acousto-optic tunable filter (4). After being modulated by the acousto-optic tunable filter (4), the light beam only generates +1-order diffraction light and is incident on the second polarizer (5). After passing through the second polarizer ( 5) The undiffracted zero-order light is absorbed and then imaged on the detector (7) through the imaging unit (6); the detector (7) receives the spectral signal of the annular occultation field of view. The present application realizes the acquisition of a large field of view of the occultation by using a panoramic camera (1), and at the same time uses an acousto-optic tunable filter (4) in combination with a linear polarizer to receive the annular light signal transmitted by the panoramic camera, thereby realizing full-band rapid tuning, low stray light, and high-resolution imaging of different spectra, thereby reducing the volume and weight of the spectral instrument while improving the detection efficiency of the entire machine, and having the advantages of multi-directional, multi-mode, and high-spectrum detection.
[0023] The panoramic imaging spectrometer occultation atmospheric remote sensing detection system and detection method provided in this application, the space-based payload uses the spectral characteristics and radiation intensity of different stars to achieve continuous observation of shadow areas without time restrictions, which is very important for studying rapidly changing celestial phenomena or long-term changing processes. At the same time, observations in all dimensions can be achieved, which is very meaningful for understanding the vertical energy exchange between the lower and upper layers of the Earth's atmosphere. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0025] Figure 1 A schematic diagram of detection of a space-based payload in a shadow area provided by the prior art.
[0026] Figure 2 A schematic diagram of the structure of the panoramic imaging spectrometer occultation atmospheric remote sensing detection system provided in an embodiment of the present application.
[0027] Figure 3A schematic diagram of the optical path of a panoramic camera provided in an embodiment of the present application.
[0028] Figure 4 A flow chart of the steps of the detection method of the panoramic imaging spectrometer occultation atmospheric remote sensing detection system provided in an embodiment of the present application. DETAILED DESCRIPTION
[0029] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.
[0030] In the description of the present application, it should be understood that the terms "upper", "lower", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0032] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments.
[0033] See also Figure 2 , which is a schematic diagram of the structure of the panoramic imaging spectrometer occultation atmosphere remote sensing detection system provided in Example 1 of the present application, including a panoramic camera 1, a collimation unit 2, a first polarizer 3, an acousto-optic tunable filter 4, a second polarizer 5, an imaging unit 6 and a detector 7. The connection relationship of each component and its implementation method are described in detail below.
[0034] See also Figure 3 , is a schematic diagram of the structure of a panoramic camera 1 provided in this embodiment. The panoramic camera 1 is used to introduce an occultation field of view, and includes a panoramic annular lens 11 and a relay lens group 12.
[0035] Specifically, after the light beam of the annular occultation field of view is reflected by the panoramic annular lens 11 (PAL), it is imaged on the image plane 13 by the relay lens group 12. The outer annular area of the PAL is responsible for reflecting the light beam of the occultation field of view into the relay lens group. Due to the unique structure of the PAL, the imaging area is an annular field of view, that is, an all-round occultation field of view.
[0036] It can be understood that the panoramic camera 1 provided in the present application adopts a panoramic annular lens (PAL) to realize 360° all-round high temporal and spatial coverage atmospheric occultation tomography detection. The image plane of this detection method is a circular ring for the detection data of the occultation field of view (in the illuminated area, the incident light is sunlight, and in the shadow area, the light source is other brighter stars). The radial direction of the occultation corresponds to different occultation altitudes, and the annular image corresponds to 360° all-round atmospheric data.
[0037] It should be noted that, since the image plane obtained by this detection method is not in the shape of a long strip, a slit cannot be placed on the image plane, that is, a grating or a prism cannot be used for spectrum detection.
[0038] The panoramic imaging spectrometer occultation atmospheric remote sensing detection system provided in the above embodiment of the present application works as follows: the panoramic camera 1 forms an annular occultation field of view with an incident light beam, the light beam emitted by the panoramic camera 1 is incident on the first polarizer 3 via the collimating unit 2, the light beam passing through the first polarizer 3 forms linearly polarized light, the linearly polarized light is incident on the acousto-optic tunable filter 4, after being modulated by the acousto-optic tunable filter 4, the light beam only generates +1-order diffracted light and is incident on the second polarizer 5, the undiffracted zero-order light is absorbed by the second polarizer 5 and then imaged on the detector 7 via the imaging unit 6, and the detector 7 receives the spectral signal of the annular occultation field of view.
[0039] It can be understood that the temporal splitting characteristic of the acousto-optic tunable filter (AOTF) avoids the use of spatial slits, and the AOTF is a polarization-sensitive optical element. According to specific AOTF usage requirements, the light beam entering the AOTF must be linearly polarized light, so polarizers are placed at the front and back ends of the AOTF to achieve low stray light detection.
[0040] Specifically, when the light passes through the image plane of the panoramic camera 1 and is input into the AOFT, due to the aperture limitation and polarization characteristics of the AOTF, the light is incident into the AOTF through the collimating unit 2. Before entering the AOTF, the natural light is converted into linearly polarized light by the first polarizer 3. After exiting the AOTF, only +1-order diffraction light is generated, and the undiffracted zero-order light is absorbed by the second polarizer 5. In addition, the AOTF has the advantages of fast tuning function and high resolution, and can achieve clear imaging of different spectra. The detection technology has the characteristics of multi-directional, multi-mode and high spectrum, providing diverse reference values for atmospheric detection.
[0041] See also Figure 4 , the detection method of the panoramic imaging spectrometer occultation atmosphere remote sensing detection system provided in this application comprises the following steps:
[0042] S110 : the panoramic camera 1 forms an occultation field of view with the incident light beam, and the light beam emitted by the panoramic camera 1 is incident on the first polarizer 3 through the collimating unit 2 .
[0043] S120: the light beam passing through the first polarizer 3 forms linearly polarized light, and the linearly polarized light is incident on the acousto-optic tunable filter 4;
[0044] S130: After being modulated by the acousto-optic tunable filter 4, the light beam only generates +1-order diffracted light and enters the second polarizer 5;
[0045] S140: The undiffracted zero-order light is absorbed by the second polarizer 5 and then imaged on the detector 7 through the imaging unit 6. The detector 7 receives the spectral signal of the occultation field of view.
[0046] The detailed working method thereof can be referred to the panoramic imaging spectrometer occultation atmosphere remote sensing detection system provided in the above embodiment, which will not be described in detail here.
[0047] The panoramic imaging spectrometer occultation atmospheric remote sensing detection system and detection method provided by the present application, the panoramic camera 1 forms an incident light beam into an annular occultation field of view, the light beam emitted by the panoramic camera 1 is incident on the first polarizer 3 through the collimating unit 2, the light beam through the first polarizer 3 forms linear polarized light, the linear polarized light is incident on the acousto-optic tunable filter 4, after being modulated by the acousto-optic tunable filter 4, the light beam only produces +1-order diffraction light and is incident on the second polarizer 5, the undiffracted zero-order light is absorbed by the second polarizer 5 and then imaged on the detector 7 through the imaging unit 6, the detector 7 receives the spectral signal of the annular occultation field of view, the present application realizes the acquisition of a large occultation field of view by using the panoramic camera 1, and at the same time uses the acousto-optic tunable filter 4 in combination with the linear polarizer solution to receive the annular light signal transmitted by the panoramic camera, thereby realizing full-band rapid tuning, low stray light, and high-resolution imaging of different spectra, while reducing the volume and weight of the spectral instrument, improving the detection efficiency of the entire machine, and having the advantages of multi-directional, multi-mode, and high-spectrum detection.
[0048] In addition, the panoramic imaging spectrometer occultation atmospheric remote sensing detection system and detection method provided by the present application detects the target to be measured through a panoramic camera and feeds back to the low stray light high-resolution AOTF spectrometer for fine multi-dimensional detection to obtain stable spectral data. The panoramic imaging technology is used to realize 360° all-round high temporal and spatial coverage of the atmospheric limb tomography of the occultation, and the linear polarizer and AOTF are combined to achieve low stray light and high-resolution detection. Since the spectral signal of the blue star is usually stronger than the spectral signal of the sun, this method can realize the observation of the payload in the shadow area, so it can provide observation data in the shadow area without time limit. For monitoring the eruption event, the planetary atmospheric changes can provide a more comprehensive and in-depth data basis; and the space-based payload uses the spectral characteristics and radiation intensity of different stars to realize continuous observation of the shadow area without time limit, which is very important for studying rapidly changing celestial phenomena or long-term changing processes. At the same time, it can realize observations in all dimensions, which is very meaningful for understanding the vertical energy exchange between the lower and upper layers of the earth's atmosphere.
[0049] The above technical solution of the present application is described below in conjunction with specific embodiments.
[0050] Example
[0051] This embodiment performs occultation observation in the shadow area. The light source is a bright star such as a blue star. The signal light input to the panoramic camera 1 is natural light with a wavelength of 200-1100nm and a bandwidth of 900nm. After the signal of the occultation field enters the panoramic camera 1, it is finally imaged on the image plane as a circular ring for the detection data of the occultation field. The radial direction of the occultation corresponds to different occultation heights, and the circular image corresponds to 360° all-round atmospheric data. In order to ensure that the light beam incident on the AOTF 4 meets the requirements of the angular aperture and to ensure the spatial separation of the diffracted light beam and the incident light beam, the signal light output by the panoramic camera 1 is collimated by the collimation unit 2 and then incident on the AOTF 4. When the incident light is white light, two diffracted lights will appear simultaneously for any sound signal after it is incident on the AOTF, one is the positive first-order diffracted light, and the other is the negative first-order diffracted light, which are located on both sides of the zero-order light. The polarization states of the positive diffracted light and the negative diffracted light are orthogonal. When the incident light is O light or E light, only one beam of diffracted light is output, and the polarization state of the diffracted light is orthogonal to the polarization state of the incident light. Therefore, before entering the AOTF, the signal light collimated by the collimating unit 2 first passes through the first polarizer 3 to become linearly polarized light. At this time, the signal light incident on the AOTF is quasi-linearly polarized light. The optical aperture of the AOTF is 10mm×10mm, the power consumption is 5w, the spectral resolution is 2.5nm@450nm, 13nm@800nm, the full-band spectral resolution is less than 20nm, and the diffraction efficiency is 60% to 70%. By changing the electrical signals at both ends of the AOTF 4, the diffraction wavelength that meets the momentum matching condition also changes accordingly. At this time, the outgoing signal light is the required narrowband band and the negative first-order linear polarized light without the acousto-optic effect. Then, the negative first-order linear polarized light is filtered out by the second polarizer 5 orthogonal to the first polarizer 3, so that only the positive first-order diffracted light is emitted, thereby achieving the detection effect of low stray light and high spectral resolution. Finally, the signal light selected by the AOTF is imaged by the imaging unit 6 and then on the detector 7 to obtain the all-weather observation data of the occultation field. In addition, the imaging spectrometer has the advantages of fast tuning, no moving parts and low cost while meeting the spectral resolution requirements.
[0052] It can be understood that the technical features of the above-described embodiments can be arbitrarily combined. In order to make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0053] The above are only preferred embodiments of the present application, and only specifically describe the technical principles of the present application. These descriptions are only for explaining the principles of the present application and cannot be interpreted as limiting the scope of protection of the present application in any way. Based on the explanation here, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application, and other specific implementation methods of the present application that can be associated with the technicians in this field without creative work, should be included in the scope of protection of the present application.
Claims
1. A panoramic imaging spectrometer occultation atmospheric remote sensing detection system, characterized in that: include: A panoramic camera (1), a collimating unit (2), a first polarizer (3), an acousto-optic tunable filter (4), a second polarizer (5), an imaging unit (6) and a detector (7), wherein: The panoramic camera (1) forms an annular occultation field of view with an incident light beam, the light beam emitted by the panoramic camera (1) is incident on the first polarizer (3) through the collimating unit (2), the light beam passing through the first polarizer (3) forms linearly polarized light, the linearly polarized light is incident on the acousto-optic tunable filter (4), after being modulated by the acousto-optic tunable filter (4), the light beam only generates +1-order diffracted light and is incident on the second polarizer (5), the undiffracted zero-order light is absorbed by the second polarizer (5) and then imaged on the detector (7) through the imaging unit (6), and the detector (7) receives a spectral signal of the annular occultation field of view.
2. The panoramic imaging spectrometer occultation atmosphere remote sensing detection system according to claim 1, characterized in that: The panoramic camera (1) comprises a panoramic annular lens (11) and a relay lens group (12); the outer annular region of the panoramic annular lens (11) is used to introduce an annular occultation field of view; after a light beam of the annular occultation field of view is reflected by the panoramic annular lens (11), the relay lens group (12) forms an image on an image plane (13); and the imaging region of the image plane (13) is an annular field of view.
3. The panoramic imaging spectrometer occultation atmosphere remote sensing detection system according to claim 2, characterized in that: The occultation radial direction of the annular occultation field corresponds to different occultation altitudes, and the annular image corresponds to 360° all-round atmospheric data.
4. The panoramic imaging spectrometer occultation atmosphere remote sensing detection system according to claim 2, characterized in that: The light beam of the annular occultation field of view is natural light with a wavelength of 200-1100nm and a bandwidth of 900nm.
5. The panoramic imaging spectrometer occultation atmosphere remote sensing detection system according to claim 1, characterized in that: The first polarizer (3) and the second polarizer (5) are arranged orthogonally.
6. A detection method for the panoramic imaging spectrometer occultation atmosphere remote sensing detection system as claimed in claim 1, characterized in that: The steps include: The panoramic camera (1) forms an occultation field of view with an incident light beam, and the light beam emitted by the panoramic camera (1) is incident on the first polarizer (3) through the collimating unit (2); The light beam passing through the first polarizer (3) forms linearly polarized light, and the linearly polarized light is incident on the acousto-optic tunable filter (4); After being modulated by the acousto-optic tunable filter (4), the light beam only generates +1-order diffracted light and is incident on the second polarizer (5); The undiffracted zero-order light is absorbed by the second polarizer (5) and then imaged on the detector (7) through the imaging unit (6), and the detector (7) receives the spectral signal of the occultation field of view.
7. The detection method of the panoramic imaging spectrometer occultation atmosphere remote sensing detection system according to claim 6, characterized in that: The panoramic camera (1) comprises a panoramic annular lens (11) and a relay lens group (12); the outer annular region of the panoramic annular lens (11) is used to introduce an annular occultation field of view; after a light beam of the annular occultation field of view is reflected by the panoramic annular lens (11), the relay lens group (12) forms an image on an image plane (13); and the imaging region of the image plane (13) is an annular field of view.
8. The detection method of the panoramic imaging spectrometer occultation atmosphere remote sensing detection system according to claim 7, characterized in that: The light beam of the annular occultation field of view is natural light with a wavelength of 200-1100nm and a bandwidth of 900nm.
9. The detection method of the panoramic imaging spectrometer occultation atmosphere remote sensing detection system according to claim 6, characterized in that: The first polarizer (3) and the second polarizer (5) are arranged orthogonally.