CN114485939A - Dynamic tracking and detecting device and method for ultra-wide waveband spectrum of remote sensing satellite - Google Patents
Dynamic tracking and detecting device and method for ultra-wide waveband spectrum of remote sensing satellite Download PDFInfo
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Abstract
The invention discloses a device and a method for dynamically tracking and detecting a remote sensing satellite ultra-wide waveband map, and relates to the field of remote sensing imaging. Wherein, detection device includes: the system comprises a scanning rotating mirror, an imaging lens, an optical switch, a long-wave spectroscope, a long-wave converging lens group, a long-wave imaging unit, a Fourier spectrum measuring unit, a short-wave spectroscope, a short-wave converging lens group, a visible and near-infrared imaging unit, a grating type spectrum measuring unit and a processor. Identifying a target through long-wave infrared imaging and visible and near-infrared imaging, and guiding a scanning rotating mirror to dynamically track the characteristic points; by controlling the on-off state of the optical switch, image information and spectrum information corresponding to the characteristic points of the long-wave imaging unit, the Fourier spectrum measuring unit, the visible near-infrared imaging unit and the grating spectrum measuring unit in the target area are respectively obtained, and the dynamic target is accurately identified and tracked. Therefore, the technical problems that the conventional spectrometer is incomplete in measuring wave band, limited in optical path layout, large in equipment size and poor in capability of detecting and tracking a dynamic target are solved.
Description
Technical Field
The invention relates to the field of remote sensing imaging, in particular to a device and a method for dynamically tracking and detecting a remote sensing satellite ultra-wide waveband map.
Background
The imaging spectrometer is widely applied to the fields of space detection, aerospace remote sensing, address analysis, environment monitoring and military reconnaissance. The imaging spectrometer can be used for acquiring two-dimensional space image information of the target and acquiring spectral information of the target point, so that timing, positioning, sizing and quantitative analysis of the target are realized.
The structure, volume, weight and cost of the spectrometer are directly influenced by the light splitting technology adopted by the ultra-wide waveband spectrum, and the dispersion type imaging spectrometer is widely applied by the advantages of good optical skin linearity, technical maturity and the like. Common spectrometer has incomplete measurement wave band, limited optical path layout, large equipment volume and poor capability of detecting and tracking dynamic targets. Therefore, the prior art needs to be improved, a more reasonable technical scheme is provided, and the problems in the prior art are solved.
Disclosure of Invention
The invention provides a device and a method for remotely sensing a satellite ultra-wide waveband map dynamic tracking detection through a color change value of a reagent paper strip, which are used for solving the technical problems of incomplete measuring waveband, limited optical path layout, large equipment volume and poor capability of detecting and tracking a dynamic target of a spectrometer in the prior art.
The invention provides a remote sensing satellite ultra-wide waveband spectrum dynamic tracking detection device which comprises a scanning rotating mirror, an imaging lens, an optical switch, a long-wave spectroscope, a long-wave converging lens group, a long-wave imaging unit, a Fourier spectrum measuring unit, a short-wave spectroscope, a short-wave converging lens group, a visible and near-infrared imaging unit, a grating spectrum measuring unit and a processor, wherein the scanning rotating mirror is arranged on the scanning rotating mirror; the scanning rotating mirror, the optical switch, the long-wave imaging unit, the Fourier spectrum measuring unit, the visible and near-infrared imaging unit and the grating spectrum measuring unit are all electrically connected with the processor; wherein,
the light beam passes through the scanning rotating mirror and the imaging lens and then reaches the optical switch, and the optical switch is used for controlling the on-off state of the micromirror to reflect the light beam to the long-wave spectroscope or the short-wave spectroscope;
the long-wave spectroscope is used for transmitting the long-wave infrared light of the predetermined imaging waveband part to the long-wave imaging unit to realize imaging, and reflecting the long-wave infrared light of the rest part of the predetermined imaging waveband and the light of other wavebands to the Fourier spectrum measuring unit to realize spectrum acquisition;
the short wave spectroscope is used for transmitting the visible light and the near infrared light part of the preset imaging waveband to the visible and near infrared imaging unit to realize imaging, and reflecting the residual visible and near infrared light of the preset imaging waveband to the grating type spectrum measuring unit to realize spectrum acquisition;
the processor is used for fusing the images corresponding to the long-wave imaging unit and the visible and near-infrared imaging units, acquiring the characteristic points and controlling the scanning rotating mirror to rotate so as to adjust the direction to align the target area corresponding to the characteristic points.
Preferably, the long wave imaging unit is an FPA imaging unit.
Preferably, the visible and near infrared imaging units are CDD imaging units.
Preferably, the optical switch is a DMD digital micro-optical element.
Preferably, the visible and near infrared imaging units are consistent with the pixel aspect ratio of the DMD digital micro-light element.
Preferably, the predetermined imaging band is an ultra-wide band of long-wave infrared, visible infrared, and near infrared.
Preferably, the long-wave spectroscope and the short-wave spectroscope are respectively plated with double layers of antireflection films, the long-wave spectroscope transmits 50% of long-wave infrared light to the long-wave imaging unit, and the rest of the short-wave infrared light, the middle-wave infrared light and 50% of the long-wave infrared light are reflected to the Fourier spectrum measuring unit;
the short wave spectroscope transmits 50% of visible and near infrared light rays to the visible and near infrared imaging unit, and the rest visible and near infrared light rays are reflected to the grating type spectrum measuring unit.
Preferably, a long-wave imaging lens group is arranged between the long-wave spectroscope and the long-wave imaging unit, and the long-wave imaging lens group is used for compensating and correcting the long-wave imaging quality;
and a visible and near-infrared imaging perspective group is arranged between the short wave spectroscope and the visible and near-infrared imaging unit and is used for compensating and correcting the visible and infrared imaging quality.
In a second aspect, the invention provides a detection method based on a remote sensing satellite ultra-wide band spectrum dynamic tracking device, which comprises the following steps:
acquiring a long-wave infrared image sequence of the target object corresponding to the characteristic point through a long-wave imaging unit, and simultaneously acquiring a visible infrared image sequence of the target object tracked by a visible and infrared imaging unit;
respectively acquiring long infrared imaging characteristic points and visible and near infrared imaging characteristic points of a target object;
fusing the long infrared imaging characteristic points and the visible and near infrared imaging characteristic points to obtain fused imaging characteristic points;
controlling the scanning rotating mirror to align the fused imaging characteristic points;
the spectrum of the characteristic points is fused through a Fourier spectrum measuring unit and a grating spectrum measuring unit;
and fusing the visible, infrared and long-wave infrared images and the spectral information to obtain image information and spectral information corresponding to the target.
Preferably, the predetermined imaging band is an ultra-wide band of long-wave infrared, visible and near-infrared.
In summary, the embodiments of the present invention provide a dynamic tracking and detecting device and method for an ultra wide band spectrum of various remote sensing satellites. Wherein, detection device includes: the system comprises a scanning rotating mirror, an imaging lens, an optical switch, a long-wave spectroscope, a long-wave converging lens group, a long-wave imaging unit, a Fourier spectrum measuring unit, a short-wave spectroscope, a short-wave converging lens group, a visible and near-infrared imaging unit, a grating type spectrum measuring unit and a processor; the scanning rotating mirror, the optical switch, the long-wave imaging unit, the Fourier spectrum measuring unit, the visible and near-infrared imaging unit and the grating spectrum measuring unit are all electrically connected with the processor; the light beam passes through the scanning rotating mirror and the imaging lens and then reaches the optical switch, and the optical switch is used for controlling the on-off state of the micromirror to reflect the light beam to the long-wave spectroscope or the short-wave spectroscope; the long-wave spectroscope is used for transmitting the long-wave infrared light of the predetermined imaging waveband part to the long-wave imaging unit to realize imaging, and reflecting the long-wave infrared light of the rest part of the predetermined imaging waveband and the light of other wavebands to the Fourier spectrum measuring unit to realize spectrum acquisition; the short wave spectroscope is used for transmitting the visible light and the near infrared light part of the preset imaging waveband to the visible and near infrared imaging unit to realize imaging, and reflecting the residual visible and near infrared light of the preset imaging waveband to the grating type spectrum measuring unit to realize spectrum acquisition; the processor is used for fusing the images corresponding to the long-wave imaging unit and the visible and near-infrared imaging units, acquiring the characteristic points and controlling the scanning rotating mirror to rotate so as to adjust the direction to align the target area corresponding to the characteristic points. Identifying a target through long-wave infrared imaging and visible and near-infrared imaging, and guiding a scanning rotating mirror to dynamically track the characteristic points; by controlling the on-off state of the optical switch, image information and spectrum information corresponding to the characteristic points of the long-wave imaging unit, the Fourier spectrum measuring unit, the visible near-infrared imaging unit and the grating spectrum measuring unit in the target area are respectively obtained, and the dynamic target is accurately identified and tracked. Therefore, the technical problems that the conventional spectrometer is incomplete in measuring wave band, limited in optical path layout, large in equipment size and poor in capability of detecting and tracking a dynamic target are solved.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
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Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic diagram of a remote sensing satellite ultra-wide band spectrum dynamic tracking detection device according to an embodiment of the present invention;
FIG. 2 is a block diagram of a device for dynamically tracking and detecting an ultra-wide band spectrum of a remote sensing satellite according to an embodiment of the present invention;
fig. 3 is a flowchart of the remote sensing satellite ultra-wide band spectrum dynamic tracking detection method provided by the embodiment of the invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Referring to fig. 1 to 2, the remote sensing satellite ultra-wide band spectrum dynamic tracking detection device provided by the invention comprises a scanning rotating mirror 10, an imaging lens 20, an optical switch 40, a long wave spectroscope 150, a long wave converging lens group 130, a long wave imaging unit 80, a fourier spectrum measuring unit 90, a short wave spectroscope 140, a short wave converging lens group 100, a visible and near infrared imaging unit 50, a grating type spectrum measuring unit 120 and a processor 30; the scanning rotating mirror 10, the optical switch 40, the long wave imaging unit 80, the Fourier spectrum measuring unit 90, the visible and near infrared imaging unit 50 and the grating spectrum measuring unit 120 are all electrically connected with the processor 30; wherein,
the light reaches the optical switch 40 after passing through the scanning rotating mirror 10 and the imaging lens 20, and the optical switch 40 is used for controlling the on-off state of the micro-mirror to reflect the light to the long-wave spectroscope 150 or the short-wave spectroscope 140;
the long-wave spectroscope 150 is used for transmitting the long-wave infrared light of the predetermined imaging waveband part to the long-wave imaging unit 80 to realize imaging, and reflecting the long-wave infrared light of the rest part of the predetermined imaging waveband and the light of other wavebands to the Fourier spectrum measuring unit 90 to realize spectrum acquisition;
the short wave spectroscope 140 is configured to transmit a part of visible and near-infrared light of a predetermined imaging waveband to the visible and near-infrared imaging unit 50 to realize imaging, and reflect the remaining visible and near-infrared light of the predetermined imaging waveband to the grating type spectrum measuring unit 120 to realize spectrum collection;
the processor 30 is used for fusing the long wave imaging unit 80 and the images corresponding to the visible and near infrared imaging unit 50 and obtaining the feature points, and controlling the scanning rotating mirror 10 to rotate so as to adjust the orientation to align the target area corresponding to the feature points.
The scanning rotating mirror 10 is connected with the processor 30 and is used for receiving light rays of 400 nm-14000 nm corresponding to a target area; the processor 30 is used for controlling the scanning rotating mirror 10 to be aligned with the target area through a servo motor corresponding to the scanning rotating mirror 10. The light of 400 nm-14000 nm passes through the scanning rotating mirror 10 and the imaging lens 20 and then reaches the optical switch 40, and the optical switch 40 is used for controlling the on-off state of the micromirror and reflecting the light to the long-wave spectroscope 150 or the short-wave spectroscope 140. The long-wave spectroscope 150 is used for transmitting 4200 nm-4500 nm long-wave infrared light rays of a predetermined imaging wave band part to the long-wave imaging unit 80 to realize imaging, and reflecting the long-wave infrared light rays of the rest part of the predetermined imaging wave band and light rays of other wave bands to the Fourier spectrum measuring unit 90 to realize spectrum acquisition; the short wave spectroscope 140 is used for partially transmitting the visible light and near infrared light of 400 nm-1000 nm of a preset imaging waveband to the visible and near infrared imaging unit 50 to realize imaging, and simultaneously reflecting the residual visible and near infrared light of the preset imaging waveband to the grating type spectrum measuring unit 120 to realize spectrum collection; preferably, the predetermined imaging band is an ultra-wide band of long-wave infrared, visible infrared, and near infrared.
Acquiring a long-wave infrared image sequence of the target object corresponding to the feature point through a long-wave imaging unit 80, and acquiring a visible infrared image sequence of the target object tracked by the visible and infrared imaging unit 50; respectively acquiring long infrared imaging characteristic points and visible and near infrared imaging characteristic points of a target object; fusing the long infrared imaging characteristic points and the visible and near infrared imaging characteristic points to obtain fused imaging characteristic points; controlling the scanning rotating mirror 10 to align the fused imaging characteristic points; the spectra of the characteristic points are fused through a Fourier spectrum measuring unit 90 and a grating spectrum measuring unit 120; and fusing the visible, infrared and long-wave infrared images and the spectral information to obtain image information and spectral information corresponding to the target.
After obtaining the image information and the spectrum information corresponding to the target, the processor 30 controls the scanning rotating mirror 10 to rotate to adjust the target area corresponding to the orientation alignment feature point; meanwhile, the processor 30 controls the micro-mirrors corresponding to the feature points of the target area received by the optical switch 40 to be turned on, and the long-wave imaging unit 80 and the fourier spectrum measuring unit 90 are used for acquiring corresponding image information and spectrum information in the target area, so as to further dynamically track the target area. Identifying a target through long-wave infrared imaging and visible and near-infrared imaging, and guiding the scanning rotating mirror 10 to dynamically track the characteristic points; by controlling the on-off state of the optical switch 40, the image information and the spectrum information corresponding to the feature points of the long-wave imaging unit 80, the Fourier spectrum measuring unit 90, the visible near-infrared imaging unit 50 and the grating spectrum measuring unit 120 in the target area are respectively obtained, and the dynamic target is accurately identified and tracked. Therefore, the technical problems that the conventional spectrometer is incomplete in measuring wave band, limited in optical path layout, large in equipment size and poor in capability of detecting and tracking a dynamic target are solved.
Preferably, the long wave imaging unit 80 is a FPA imaging unit. The long-wave imaging unit 80 may employ a FPA (focal plane array) imaging unit.
Preferably, the visible and near infrared imaging unit 50 is a CDD imaging unit.
Preferably, the optical switch 40 is a DMD digital micro-optical element. The optical switch 40 is a DMD digital micro-optic element,
preferably, the visible and near infrared imaging unit 50 is consistent with the pixel aspect ratio of the DMD digital micro-light element. When the near-infrared imaging unit is a CDD imaging unit, the length-width ratio of the pixels of the CDD imaging unit and the DMD digital micro-optical element is consistent, and each pixel of the CDD imaging unit and the DMD digital micro-optical element corresponds to one piece of spectral information in the measuring process.
Preferably, the long-wave beam splitter 150 and the short-wave beam splitter 140 are respectively plated with a double-layer antireflection film, the long-wave beam splitter 150 transmits 50% of long-wave infrared light to the long-wave imaging unit 80, and the rest of the short-wave, medium-wave and 50% of long-wave infrared light are reflected to the fourier spectrum measuring unit 90; the short wave spectroscope 140 transmits 50% of visible and near-infrared light to the visible and near-infrared imaging unit 50, and the remaining visible and near-infrared light is reflected to the grating type spectrum measuring unit 120.
Preferably, a long-wave imaging lens group 70 is arranged between the long-wave spectroscope 150 and the long-wave imaging unit 80, and the long-wave imaging lens group 70 is used for compensating and correcting the long-wave imaging quality; the compensation and correction of long-wave imaging quality can be realized, and the stability of the measurement result is improved.
A visible and near-infrared imaging perspective group 60 is arranged between the short wave spectroscope 140 and the visible and near-infrared imaging unit 50, and the near-infrared imaging perspective group 60 is used for compensating and correcting the visible and infrared imaging quality; the compensation and correction of visible and infrared imaging quality can be realized, and the stability of the measurement result is improved.
In a second aspect, the invention provides a detection method based on a remote sensing satellite ultra-wide band spectrum dynamic tracking device, which comprises the following steps:
and S101, acquiring a long-wave infrared image sequence of the target object corresponding to the characteristic point through a long-wave imaging unit, and simultaneously acquiring a visible infrared image sequence of the target object tracked by a visible and infrared imaging unit.
The long-wave imaging unit 80 acquires a long-wave infrared image sequence of the target object corresponding to the feature point, and simultaneously acquires a visible infrared image sequence of the target object tracked by the visible and infrared imaging unit 50.
Step S102, respectively acquiring long infrared imaging characteristic points and visible and near infrared imaging characteristic points of a target object;
respectively acquiring long infrared imaging characteristic points (x) of a target object1，y1) And visible and near infrared imaging feature points (x)1，y2) (ii) a Simultaneously outputting long infrared imaging characteristic points (x)1，y1) And visible and near infrared imaging feature points (x)1，y2)。
Step S103, fusing the long infrared imaging characteristic points and the visible and near infrared imaging characteristic points to obtain fused imaging characteristic points;
imaging the long infrared to a feature point (x)1，y1) And visible and near infrared imaging feature points (x)1，y2) And carrying out feature point fusion to obtain a target feature point (x, y).
Step S104, controlling the scanning rotating mirror to align the fused imaging characteristic points;
the scanning rotating mirror 10 is controlled by the controller to be aligned with the target characteristic point (x, y), the target characteristic point (x, y) is moved, and spectrum collection is carried out.
S105, fusing the spectrums of the characteristic points through a Fourier spectrum measuring unit and a grating spectrum measuring unit;
the fourier spectrum measuring unit 90 and the grating spectrum measuring unit 120 are used for fusing the spectrums of the characteristic points.
And S106, fusing the visible, infrared and long-wave infrared images with the spectral information to obtain image information and spectral information corresponding to the target.
After obtaining the image information and the spectrum information corresponding to the target, the processor 30 controls the scanning rotating mirror 10 to rotate to adjust the target area corresponding to the orientation alignment feature point; meanwhile, the processor 30 controls the micro-mirrors corresponding to the feature points of the target area received by the optical switch 40 to be turned on, and the long-wave imaging unit 80 and the fourier spectrum measuring unit 90 are used for acquiring corresponding image information and spectrum information in the target area, so as to further dynamically track the target area. Identifying a target through long-wave infrared imaging and visible and near-infrared imaging, and guiding the scanning rotating mirror 10 to dynamically track the characteristic points; by controlling the on-off state of the optical switch 40, the image information and the spectrum information corresponding to the feature points of the long-wave imaging unit 80, the Fourier spectrum measuring unit 90, the visible near-infrared imaging unit 50 and the grating spectrum measuring unit 120 in the target area are respectively obtained, and the dynamic target is accurately identified and tracked. Therefore, the technical problems that the conventional spectrometer is incomplete in measuring wave band, limited in optical path layout, large in equipment size and poor in capability of detecting and tracking a dynamic target are solved.
Preferably, the predetermined imaging band is an ultra-wide band of long-wave infrared, visible and near-infrared.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
In short, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A dynamic tracking and detecting device for a remote sensing satellite ultra-wide waveband spectrum is characterized by comprising a scanning rotating mirror, an imaging lens, an optical switch, a long-wave spectroscope, a long-wave converging lens group, a long-wave imaging unit, a Fourier spectrum measuring unit, a short-wave spectroscope, a short-wave converging lens group, a visible and near-infrared imaging unit, a grating spectrum measuring unit and a processor; the scanning rotating mirror, the optical switch, the long wave imaging unit, the Fourier spectrum measuring unit, the visible and near infrared imaging unit and the grating spectrum measuring unit are all electrically connected with the processor; wherein,
the light beam passes through the scanning rotating mirror and the imaging lens and then reaches the optical switch, and the optical switch is used for controlling the on-off state of the micromirror to reflect the light beam to the long-wave spectroscope or the short-wave spectroscope;
the long-wave spectroscope is used for transmitting long-wave infrared light of a preset imaging waveband part to the long-wave imaging unit to realize imaging, and reflecting long-wave infrared light of the rest part of the preset imaging waveband and light of other wavebands to the Fourier spectrum measuring unit to realize spectrum acquisition;
the short wave spectroscope is used for partially transmitting visible light and near infrared light of a preset imaging waveband to the visible light and near infrared imaging unit to realize imaging, and reflecting the residual visible light and near infrared light of the preset imaging waveband to the grating type spectrum measuring unit to realize spectrum collection;
the processor is used for fusing the images corresponding to the long-wave imaging unit and the visible and near-infrared imaging units, acquiring characteristic points and controlling the scanning rotating mirror to rotate so as to adjust the azimuth to align the target area corresponding to the characteristic points.
2. The remote sensing satellite ultra-wide band spectrum dynamic tracking detection device of claim 1, wherein the long wave imaging unit is an FPA imaging unit.
3. The remote sensing satellite ultra-wide band spectrum dynamic tracking detection device of claim 1, wherein the visible and near-infrared imaging units are CDD imaging units.
4. The remote sensing satellite ultra-wide band spectrum dynamic tracking detection device of claim 1, wherein the optical switch is a DMD digital micro-optical element.
5. The remote sensing satellite ultra-wide band spectrum dynamic tracking detection device of claim 4, wherein the visible and near-infrared imaging units are consistent with the pixel aspect ratio of the DMD digital micro-light elements.
6. The remote sensing satellite ultra-wide band spectrum dynamic tracking detection device of claim 1, wherein the predetermined imaging band is an ultra-wide band of long wave infrared, visible infrared, and near infrared.
7. The remote sensing satellite ultra-wide band spectrum dynamic tracking detection device according to claim 1, wherein the long wave spectroscope and the short wave spectroscope are respectively plated with a double-layer antireflection film, the long wave spectroscope transmits 50% of long wave infrared light to the long wave imaging unit, and the rest of the short wave, the middle wave and 50% of the long wave infrared light are reflected to the Fourier spectrum measuring unit;
the short wave spectroscope transmits 50% of visible and near-infrared light rays to the visible and near-infrared imaging unit, and the rest visible and near-infrared light rays are reflected to the grating type spectrum measuring unit.
8. The remote sensing satellite ultra-wide band spectrum dynamic tracking detection device as claimed in claim 1, wherein a long wave imaging lens group is included between the long wave spectroscope and the long wave imaging unit, and the long wave imaging lens group is used for compensating and correcting long wave imaging quality;
the short wave spectroscope with including visible and near infrared formation of image perspective group between visible and the near infrared imaging unit, near infrared formation of image perspective group is used for carrying out compensation correction to visible and infrared formation of image quality.
9. A detection method based on the device for dynamically tracking the ultra-wide waveband spectrum of the remote sensing satellite in any one of claims 1 to 8, which is characterized by comprising the following steps:
acquiring a long-wave infrared image sequence of the target object corresponding to the characteristic point through the long-wave imaging unit, and acquiring a visible infrared image sequence of the target object tracked by the visible and infrared imaging units;
respectively acquiring long infrared imaging characteristic points and visible and near infrared imaging characteristic points of a target object;
fusing the long infrared imaging characteristic points and the visible and near infrared imaging characteristic points to obtain fused imaging characteristic points;
controlling the scanning rotating mirror to align to the fused imaging characteristic points;
the Fourier spectrum measuring unit and the grating spectrum measuring unit are used for fusing the spectrums of the characteristic points;
and fusing the visible, infrared and long-wave infrared images and the spectral information to obtain image information and spectral information corresponding to the target.
10. The detection method of claim 9, wherein the predetermined imaging band is an ultra-wide band of long-wave infrared, visible, and near-infrared.
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