CN106768363A - Across space and the moving-target infrared signature inversion method and system of atmosphere - Google Patents
Across space and the moving-target infrared signature inversion method and system of atmosphere Download PDFInfo
- Publication number
- CN106768363A CN106768363A CN201611266601.2A CN201611266601A CN106768363A CN 106768363 A CN106768363 A CN 106768363A CN 201611266601 A CN201611266601 A CN 201611266601A CN 106768363 A CN106768363 A CN 106768363A
- Authority
- CN
- China
- Prior art keywords
- radiation
- moving
- space
- target
- observed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000005855 radiation Effects 0.000 claims abstract description 217
- 230000005540 biological transmission Effects 0.000 claims abstract description 158
- 238000005259 measurement Methods 0.000 claims abstract description 10
- 230000000644 propagated effect Effects 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000009897 systematic effect Effects 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 abstract description 5
- 230000004888 barrier function Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000006854 communication Effects 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0022—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation of moving bodies
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention discloses a kind of across space and the moving-target infrared signature inversion method and system of atmosphere, wherein, the realization of method includes：Measuring system and the path type being observed between moving-target are determined first, then the transmission characteristic of infrared radiation parameter under current path type is calculated, the infra-red radiation average brightness and transmission characteristic of infrared radiation parameter that are observed moving-target image space finally according to multiple measurement be observed the Inversion Calculation of moving-target object space infra-red radiation brightness.Implementing the present invention can solve to calculate the technical barrier with object space infra-red radiation brightness Inversion Calculation across space and atmosphere transmission characteristic of infrared radiation parameter.
Description
Technical field
The invention belongs to electromagnetic radiation theory, infrared radiation measurement interleaving techniques field, more particularly, to one kind across too
The moving-target infrared signature inversion method and system of empty and atmosphere.
Background technology
The transmission path both at home and abroad involved by moving-target infrared signature inversion method is in endoatmosphere at present, so
And the method can not meet transmission path across space environment and the application demand of atmosphere.
Be across the moving-target infrared signature inverting difficult point of space and atmosphere, measuring system and target being observed it
Between existing one section of transmission path also have one section through vacuum through air, emittance communication process is complicated.For infrared spoke
Penetrate the relative position pass that the transmission characteristic parameter of characteristic inverting is depended primarily between measuring system, target being observed and the earth
System.This relativeness change is various, causes the transmission path pattern across space environment and atmosphere to there are various different types.
Transmission characteristic of infrared radiation calculation method of parameters under every kind of transmission path mode condition is different.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, the invention provides a kind of across space and the dynamic mesh of atmosphere
Mark infrared signature inversion method and system, are calculated by the path type for determining measuring system and being observed between moving-target
Moving-target infrared energy through the path length and angle of air is observed under different paths, and is calculated using relevant parameter
Transmission characteristic of infrared radiation parameter, the infra-red radiation average brightness for being observed moving-target image space finally according to multiple measurement and
Transmission characteristic of infrared radiation parameter be observed the Inversion Calculation of moving-target object space infra-red radiation brightness.Thus existing skill is solved
In art the technology with object space infra-red radiation brightness Inversion Calculation is calculated across space and atmosphere transmission characteristic of infrared radiation parameter
Problem.
To achieve the above object, according to one aspect of the present invention, there is provided a kind of across space and the moving-target of atmosphere
Infrared signature inversion method, including：
(1) the infrared radiation transmissions path type across space and atmosphere is determined, wherein, the infrared radiation transmissions path
Type is included in the radiation transmission path being observed under the conditions of moving-target, space in endoatmosphere measuring system observation space
The radiation transmission path being observed under the conditions of moving-target and the measuring system in space of measuring system observation endoatmosphere are saturating
The radiation transmission path being observed under the conditions of moving-target crossed in atmosphere observation space；
(2) the transmission characteristic of infrared radiation parameter transmitance ρ and journey spoke under current infrared radiation transmissions path type are calculated
Penetrate Lr；
(3) with Δ t as n times that time interval is continuously measured to be observed moving-target image space infra-red radiation according to measuring system bright
Degree seeks image space average radiation brightness Lt'：Wherein,Represent that what i-th Δ t measured is observed dynamic mesh
Mark the infra-red radiation brightness of image space, i=1 ..., n；
(4) the average radiation brightness L for being observed moving-target image space measured according to measuring systemt' calculate be observed dynamic mesh
Mark the infra-red radiation brightness L of object spacet：
Preferably, step (2) is specifically included：
(2-1) is if the infrared radiation transmissions path type across space and atmosphere observes space for endoatmosphere measuring system
In the radiation transmission path being observed under the conditions of moving-target, then by measuring system height, atmosphere maximum height, zenith angle,
The radius of a ball and infrared band calculate transmission characteristic of infrared radiation parameter transmitance ρ and the journey radiation under the conditions of the radiation transmission path
Lr, wherein, measuring system height and infrared band determine according to actual conditions, and earth radius is at latitude residing for measuring system
Radius value, atmosphere maximum height is set as preset value, and the computing formula of zenith angle is：
Wherein, A represents the position of the measuring system of endoatmosphere, and B represents the position for being observed moving-target in space, and C represents that OA prolongs
On line long a bit,Respectively measuring system and height of the moving-target away from the earth's core O is observed,It is measuring system
Be observed the distance between moving-target；
(2-2) is if the measuring system in the infrared radiation transmissions path type of space and atmosphere is for space observes air
The radiation transmission path being observed under the conditions of moving-target in layer, then by the path length in radiation transmission path through air, big
Gas-bearing formation maximum height, it is observed moving-target height, earth radius and infrared band and calculates infrared under the conditions of the radiation transmission path
Radiation transmission characterisitic parameter transmitance ρ and journey radiation Lr, wherein, it is observed moving-target height and infrared band is true according to actual conditions
Fixed, earth radius is to be observed the radius value at latitude residing for moving-target, and atmosphere maximum height is set as preset value, radiation transmission
The computing formula of path length on path through air is：
Wherein, A represents the position of the measuring system in space, and B represents the position for being observed moving-target of endoatmosphere, and C is passed for radiation
With the intersection point at atmosphere edge on defeated path,Respectively it is observed in moving-target and radiation transmission path and air
The height of the intersection point away from the earth's core O at layer edge, ∠ ABO can determine by the relative position relation of A points, B points, O points, radiation transmission path
It is the path propagated from B to A；
(2-3) is if the measuring system in the infrared radiation transmissions path type of space and atmosphere is for space passes through air
The radiation transmission path being observed under the conditions of moving-target in layer observation space, then by the road in radiation transmission path through air
Cheng Changdu, atmosphere maximum height, earth radius and infrared band calculate the infra-red radiation under the conditions of the radiation transmission path
Transmission characteristic parameter transmitance ρ and journey radiation Lr, wherein, infrared band determines according to actual conditions, and earth radius is to be observed
Radius value at latitude residing for moving-target, atmosphere maximum height is set as preset value, through air in radiation transmission path
The computing formula of path length is：Wherein, A represents the position of the measuring system in space,
B represents the position for being observed moving-target in space, and D, E are the intersection point with atmosphere edge in radiation transmission path,It is ground
Heart O points are arrivedVertical line, For atmosphere maximum height adds earth radius, radiation transmission
Path is the path propagated from B to A.
It is another aspect of this invention to provide that there is provided a kind of moving-target infrared signature inverting across space and atmosphere
System, including：
Determining module, for determining the infrared radiation transmissions path type across space and atmosphere, wherein, the infrared spoke
Penetrating transmission path type includes the radiation transmission road being observed under the conditions of moving-target in endoatmosphere measuring system observation space
In the radiation transmission path being observed under the conditions of moving-target and space of the measuring system observation endoatmosphere in footpath, space
Measuring system is through the radiation transmission path being observed under the conditions of moving-target in atmosphere observation space；
First computing module, for calculating the transmission characteristic of infrared radiation parameter under current infrared radiation transmissions path type
Transmitance ρ and journey radiation Lr；
Second computing module, for being observed moving-target with Δ t as n times that time interval is continuously measured according to measuring system
The average radiation brightness L of image space is sought in the infra-red radiation brightness of image spacet'：Wherein,Represent i-th
What Δ t was measured is observed the infra-red radiation brightness of moving-target image space, i=1 ..., n；
3rd computing module, for the average radiation brightness L for being observed moving-target image space measured according to measuring systemt'
Calculating is observed the infra-red radiation brightness L of moving-target object spacet：
Preferably, first computing module includes：
First calculating sub module, for being endoatmosphere survey in the infrared radiation transmissions path type across space and atmosphere
When measuring the radiation transmission path being observed under the conditions of moving-target in systematic observation space, by measuring system height, atmosphere most
Height high, zenith angle, earth radius and infrared band calculate the transmission characteristic of infrared radiation under the conditions of the radiation transmission path
Parameter transmitance ρ and journey radiation Lr, wherein, measuring system height and infrared band determine that earth radius is according to actual conditions
Radius value at latitude residing for measuring system, atmosphere maximum height is set as preset value, and the computing formula of zenith angle is：Wherein, A represents the position of the measuring system of endoatmosphere, B tables
Show the position for being observed moving-target in space, C represents a bit on OA extended lines,Respectively measuring system and
Height of the moving-target away from the earth's core O is observed,Measuring system and to be observed the distance between moving-target；
Second calculating sub module, for the measurement in across the infrared radiation transmissions path type of space and atmosphere for space
During the radiation transmission path being observed under the conditions of moving-target of systematic observation endoatmosphere, by the road in radiation transmission path through air
Cheng Changdu, atmosphere maximum height, it is observed moving-target height, earth radius and infrared band and calculates the radiation transmission path condition
Under transmission characteristic of infrared radiation parameter transmitance ρ and journey radiation Lr, wherein, moving-target height and infrared band are observed according to actual feelings
Condition determines that earth radius is to be observed the radius value at latitude residing for moving-target, and atmosphere maximum height is set as preset value, and radiation is passed
The computing formula of path length on defeated path through air is：
Wherein, A represents the position of the measuring system in space, and B represents the position for being observed moving-target of endoatmosphere, and C is passed for radiation
With the intersection point at atmosphere edge on defeated path,Respectively it is observed in moving-target and radiation transmission path and air
The height of the intersection point away from the earth's core O at layer edge, ∠ ABO can determine by the relative position relation of A points, B points, O points, radiation transmission path
It is the path propagated from B to A；
3rd calculating sub module, for the survey in across the infrared radiation transmissions path type of space and atmosphere for space
During the radiation transmission path being observed under the conditions of moving-target that amount system is observed in space through atmosphere, by radiation transmission path
On calculate the radiation transmission path bar through the path length of air, atmosphere maximum height, earth radius and infrared band
Transmission characteristic of infrared radiation parameter transmitance ρ and journey radiation L under partr, wherein, infrared band determines according to actual conditions, ground
The radius of a ball is to be observed the radius value at latitude residing for moving-target, and atmosphere maximum height is set as preset value, radiation transmission road
The computing formula of path length on footpath through air is：Wherein, during A represents space
The position of measuring system, B represents the position for being observed moving-target in space, D, E be in radiation transmission path with atmosphere side
The intersection point of edge,For O points in the earth's core are arrivedVertical line, It is that atmosphere maximum height adds ground
The radius of a ball, radiation transmission path is the path propagated from B to A.
In general, there is following skill compared with prior art, mainly by the contemplated above technical scheme of the present invention
Art advantage：
(1) this method is applied to measuring system and the radiant energy delivery path that is observed between moving-target across space and big
The situation of gas-bearing formation；
(2) method presents various different across space and atmosphere radiant energy delivery path type, and accordingly
Radiation transmission characterisitic parameter computational methods, with practical value very high.
Brief description of the drawings
Fig. 1 is a kind of across space and the moving-target infrared signature inversion method of atmosphere disclosed in the embodiment of the present invention
Schematic flow sheet；
Fig. 2 is relative position relation schematic diagram when being observed moving-target in the measuring system observation space of endoatmosphere；
Fig. 3 is that the measuring system in space observes relative position relation schematic diagram when endoatmosphere is observed moving-target；
Fig. 4 is relative position relation when being observed moving-target that the measuring system in space is observed in space through atmosphere
Schematic diagram；
Fig. 5 is a kind of across space and the moving-target infrared signature Inversion System of atmosphere disclosed in the embodiment of the present invention
Structural representation.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as additionally, technical characteristic involved in invention described below each implementation method
Not constituting conflict each other can just be mutually combined.
As shown in figure 1, a kind of across space and the moving-target infrared signature of atmosphere disclosed in the embodiment of the present invention
The schematic flow sheet of inversion method, in the method shown in Fig. 1, specifically includes following steps：
(1) the infrared radiation transmissions path type across space and atmosphere is determined, wherein, above-mentioned infrared radiation transmissions path
Type is included in the radiation transmission path being observed under the conditions of moving-target, space in endoatmosphere measuring system observation space
The radiation transmission path being observed under the conditions of moving-target and the measuring system in space of measuring system observation endoatmosphere are saturating
The radiation transmission path being observed under the conditions of moving-target crossed in atmosphere observation space；
Wherein, it is illustrated in figure 2 relative position when being observed moving-target in the measuring system of endoatmosphere observation space
Relation schematic diagram, the position of the measuring system of endoatmosphere is represented that the position of the space moving-target being observed is by B point tables by A points
Show, the emittance for being observed moving-target is propagated from B points to A points.
Relative position relation is illustrated when the measuring system observation endoatmosphere being illustrated in figure 3 in space is observed moving-target
Figure, the position of the measuring system in space is represented that the position of the endoatmosphere moving-target being observed is represented by B points, is seen by A points
The emittance for surveying target is propagated from B points to A points.
The measuring system being illustrated in figure 4 in space is aligned through the moving-target phase that is observed in atmosphere observation space
Relation schematic diagram is put, the position of the measuring system in space is represented that the moving-target position in the space being observed is by B points by A points
Represent, the emittance of target being observed is propagated from B points to A points.
Wherein, Fig. 2, Fig. 3 and Fig. 4 correspond to three kinds of different infrared radiation transmissions paths respectively.
(2) the transmission characteristic of infrared radiation parameter transmitance ρ and journey spoke under current infrared radiation transmissions path type are calculated
Penetrate Lr；
Wherein, step (2) specifically includes following sub-step：
(2-1) is if the infrared radiation transmissions path type across space and atmosphere observes space for endoatmosphere measuring system
In the radiation transmission path being observed under the conditions of moving-target, then by measuring system height, atmosphere maximum height, zenith angle,
The radius of a ball and infrared band calculate transmission characteristic of infrared radiation parameter transmitance ρ and the journey radiation under the conditions of the radiation transmission path
Lr, wherein, measuring system height and infrared band determine according to actual conditions, and earth radius is half at latitude residing for measuring system
Footpath is worth, and atmosphere maximum height is set as preset value, and the computing formula of zenith angle is：
Wherein, as shown in Fig. 2 A represents the position of the measuring system of endoatmosphere, B represents the position for being observed moving-target in space,
C represents a bit on OA extended lines,Respectively measuring system and height of the moving-target away from the earth's core O is observed,For
Measuring system and it is observed the distance between moving-target.
It is alternatively possible to obtain endoatmosphere measuring system using above parameter combination Modtran softwares observe in space
The transmission characteristic of infrared radiation parameter transmitance ρ being observed under the conditions of moving-target and journey radiation Lr。
For example, atmosphere maximum height is set as 100 kilometers, highly for 20km measuring system to height for 2000km and
When being detected apart from the moving-target of its 2576.439km, infrared 8~12 μm of air from unloaded infrared system to space moving-target
Transmitance ρ=0.926 and 9 journeys radiation Lr=0.4858 (Wm-2·sr-1)。
(2-2) is if the measuring system in the infrared radiation transmissions path type of space and atmosphere is for space observes air
The radiation transmission path being observed under the conditions of moving-target in layer, then by path length, the air in radiation transmission path through air
Layer maximum height, it is observed moving-target height, earth radius and infrared band and calculates infrared spoke under the conditions of the radiation transmission path
Penetrate transmission characteristic parameter transmitance ρ and journey radiation Lr, wherein, it is observed moving-target height and infrared band determines according to actual conditions,
Earth radius is to be observed the radius value at latitude residing for moving-target, and atmosphere maximum height is set as preset value, radiation transmission road
The computing formula of path length on footpath through air is：Its
In, as shown in figure 3, A represents the position of the measuring system in space, B represents the position for being observed moving-target of endoatmosphere, C
It is the intersection point in radiation transmission path with atmosphere edge,Respectively it is observed moving-target and radiation transmission path
Height of the intersection point at upper and atmosphere edge away from the earth's core O, ∠ ABO can be determined by the relative position relation of A points, B points, O points, be radiated
Transmission path is the path propagated from B to A.
It is alternatively possible to the measuring system obtained using above parameter combination Modtran softwares in space observes atmosphere
The interior transmission characteristic of infrared radiation parameter transmitance ρ being observed under the conditions of moving-target and journey radiation Lr。
For example, from height 36000km spaces measuring system to the air of endoatmosphere height 15km targets it is infrared by 4.2~
4.45 μm of transmitance ρ=0.2014 and journey radiation Lr=1.364 × 10-2(W·m-2·sr-1)。
(2-3) is if the measuring system in the infrared radiation transmissions path type of space and atmosphere is for space passes through air
The radiation transmission path being observed under the conditions of moving-target in layer observation space, then by the road in radiation transmission path through air
Cheng Changdu, atmosphere maximum height, earth radius and infrared band calculate the infra-red radiation under the conditions of the radiation transmission path
Transmission characteristic parameter transmitance ρ and journey radiation Lr, wherein, infrared band determines according to actual conditions, and earth radius is to be observed
Radius value at latitude residing for moving-target, atmosphere maximum height is set as preset value, through air in radiation transmission path
The computing formula of path length is：Wherein, as shown in figure 4, A represents the measurement in space
The position of system, B represents the position for being observed moving-target in space, D, E be in radiation transmission path with atmosphere edge
Intersection point,For O points in the earth's core are arrivedVertical line, For atmosphere maximum height is added
Earth radius, radiation transmission path is the path propagated from B to A.
It is alternatively possible to obtaining the measuring system in space using above parameter combination Modtran softwares passes through atmosphere
The transmission characteristic of infrared radiation parameter transmitance ρ being observed under the conditions of moving-target and journey radiation L in observation spacer。
For example, the measuring system of height 1500km is carried out to height 500km and with its extraterrestrial target apart from 2098.12km
In infrared 8~12 μm of transmitance ρ=0.6076 and journey radiation L during observationr=2.84 (Wm-2·sr-1)。
(3) according to measuring system with Δ t be the infra-red radiation for being observed moving-target image space for n times that time interval is continuously measured
The average radiation brightness L of image space is sought in brightnesst'：Wherein,Represent that what i-th Δ t measured is observed
The infra-red radiation brightness of moving-target image space, i=1 ..., n；
(4) the average radiation brightness L for being observed moving-target image space measured according to measuring systemt' calculate be observed dynamic mesh
Mark the infra-red radiation brightness L of object spacet：
As shown in figure 5, a kind of across space and the moving-target infrared signature of atmosphere disclosed in the embodiment of the present invention
The structural representation of Inversion System.Include in the system shown in Fig. 5：
Determining module, for determining the infrared radiation transmissions path type across space and atmosphere, wherein, the infrared spoke
Penetrating transmission path type includes the radiation transmission road being observed under the conditions of moving-target in endoatmosphere measuring system observation space
In the radiation transmission path being observed under the conditions of moving-target and space of the measuring system observation endoatmosphere in footpath, space
Measuring system is through the radiation transmission path being observed under the conditions of moving-target in atmosphere observation space；
First computing module, for calculating the transmission characteristic of infrared radiation parameter under current infrared radiation transmissions path type
Transmitance ρ and journey radiation Lr；
Second computing module, for being observed moving-target with Δ t as n times that time interval is continuously measured according to measuring system
The average radiation brightness L of image space is sought in the infra-red radiation brightness of image spacet'：Wherein,Represent i-th
What Δ t was measured is observed the infra-red radiation brightness of moving-target image space, i=1 ..., n；
3rd computing module, for the average radiation brightness L for being observed moving-target image space measured according to measuring systemt'
Calculating is observed the infra-red radiation brightness L of moving-target object spacet：
Wherein, the specific embodiment of each module may be referred to the description in embodiment of the method, and the embodiment of the present invention will not
Repeat.
As it will be easily appreciated by one skilled in the art that the foregoing is only presently preferred embodiments of the present invention, it is not used to
The limitation present invention, all any modification, equivalent and improvement made within the spirit and principles in the present invention etc., all should include
Within protection scope of the present invention.
Claims (4)
1. a kind of across space and the moving-target infrared signature inversion method of atmosphere, it is characterised in that including：
(1) the infrared radiation transmissions path type across space and atmosphere is determined, wherein, the infrared radiation transmissions path type
Including the radiation transmission path being observed under the conditions of moving-target, the measurement in space in endoatmosphere measuring system observation space
The radiation transmission path being observed under the conditions of moving-target of systematic observation endoatmosphere and the measuring system in space are through big
The radiation transmission path being observed under the conditions of moving-target in gas-bearing formation observation space；
(2) transmission characteristic of infrared radiation parameter transmitance ρ and journey the radiation L under current infrared radiation transmissions path type are calculatedr；
(3) according to measuring system with Δ t be the infra-red radiation brightness for being observed moving-target image space for n times that time interval is continuously measured
Seek image space average radiation brightness Lt'：Wherein,Represent that what i-th Δ t measured is observed moving-target
The infra-red radiation brightness of image space, i=1 ..., n；
(4) the average radiation brightness L for being observed moving-target image space measured according to measuring systemt' calculate be observed moving-target object space
Infra-red radiation brightness Lt：
2. method according to claim 1, it is characterised in that step (2) is specifically included：
(2-1) is if in being endoatmosphere measuring system observation space across the infrared radiation transmissions path type of space and atmosphere
The radiation transmission path under the conditions of moving-target is observed, then by measuring system height, atmosphere maximum height, zenith angle, the earth half
Footpath and infrared band calculate transmission characteristic of infrared radiation parameter transmitance ρ and journey the radiation L under the conditions of the radiation transmission pathr, its
In, measuring system height and infrared band determine according to actual conditions, and earth radius is the radius at latitude residing for measuring system
Value, atmosphere maximum height is set as preset value, and the computing formula of zenith angle is：
Wherein, A represents the position of the measuring system of endoatmosphere, and B represents the position for being observed moving-target in space, and C represents that OA prolongs
On line long a bit,Respectively measuring system and height of the moving-target away from the earth's core O is observed,It is measuring system
Be observed the distance between moving-target；
(2-2) is if the measuring system in the infrared radiation transmissions path type of space and atmosphere is for space observes endoatmosphere
The radiation transmission path being observed under the conditions of moving-target, then by radiation transmission path through air path length, atmosphere
Maximum height, it is observed moving-target height, earth radius and infrared band and calculates infra-red radiation under the conditions of the radiation transmission path
Transmission characteristic parameter transmitance ρ and journey radiation Lr, wherein, it is observed moving-target height and infrared band determines according to actual conditions, ground
The radius of a ball is to be observed the radius value at latitude residing for moving-target, and atmosphere maximum height is set as preset value, in radiation transmission path
Computing formula through the path length of air is：
Wherein, A represents the position of the measuring system in space, and B represents the position for being observed moving-target of endoatmosphere, and C is passed for radiation
With the intersection point at atmosphere edge on defeated path,Respectively it is observed in moving-target and radiation transmission path and air
The height of the intersection point away from the earth's core O at layer edge, ∠ ABO can determine by the relative position relation of A points, B points, O points, radiation transmission path
It is the path propagated from B to A；
(2-3) is if the measuring system in the infrared radiation transmissions path type of space and atmosphere is for space is seen through atmosphere
The radiation transmission path being observed under the conditions of moving-target surveyed in space is then long by the distance in radiation transmission path through air
Degree, atmosphere maximum height, earth radius and infrared band calculate the infrared radiation transmissions under the conditions of the radiation transmission path
Characterisitic parameter transmitance ρ and journey radiation Lr, wherein, infrared band determines according to actual conditions, and earth radius is to be observed dynamic mesh
Radius value at the residing latitude of mark, atmosphere maximum height is set as preset value, through the distance of air in radiation transmission path
The computing formula of length is：Wherein, A represents the position of the measuring system in space, B tables
Show the position for being observed moving-target in space, D, E are the intersection point with atmosphere edge in radiation transmission path,It is the earth's core O
Point is arrivedVertical line,For atmosphere maximum height adds earth radius, radiation is passed
Defeated path is the path propagated from B to A.
3. a kind of across space and the moving-target infrared signature Inversion System of atmosphere, it is characterised in that including：
Determining module, for determining the infrared radiation transmissions path type across space and atmosphere, wherein, the infra-red radiation is passed
Defeated path type includes the radiation transmission path being observed under the conditions of moving-target, too in endoatmosphere measuring system observation space
The radiation transmission path being observed under the conditions of moving-target of aerial measuring system observation endoatmosphere and the measurement in space
System is through the radiation transmission path being observed under the conditions of moving-target in atmosphere observation space；
First computing module, passes through for calculating the transmission characteristic of infrared radiation parameter under current infrared radiation transmissions path type
Rate ρ and journey radiation Lr；
Second computing module, for being observed moving-target image space with Δ t as n times that time interval is continuously measured according to measuring system
Infra-red radiation brightness seek the average radiation brightness L of image spacet'：Wherein,Represent that i-th Δ t is surveyed
The infra-red radiation brightness for being observed moving-target image space for obtaining, i=1 ..., n；
3rd computing module, for the average radiation brightness L for being observed moving-target image space measured according to measuring systemt' calculate quilt
Observe the infra-red radiation brightness L of moving-target object spacet：
4. system according to claim 3, it is characterised in that first computing module includes：
First calculating sub module, for being for endoatmosphere measures in the infrared radiation transmissions path type across space and atmosphere
It is high by measuring system height, atmosphere highest during the radiation transmission path being observed under the conditions of moving-target that overall view is surveyed in space
Degree, zenith angle, earth radius and infrared band calculate the transmission characteristic of infrared radiation parameter under the conditions of the radiation transmission path
Transmitance ρ and journey radiation Lr, wherein, measuring system height and infrared band determine according to actual conditions, and earth radius is measurement
Radius value at latitude residing for system, atmosphere maximum height is set as preset value, and the computing formula of zenith angle is：Wherein, A represents the position of the measuring system of endoatmosphere, B tables
Show the position for being observed moving-target in space, C represents a bit on OA extended lines,Respectively measuring system and quilt
Height of the observation moving-target away from the earth's core O,Measuring system and to be observed the distance between moving-target；
Second calculating sub module, for the measuring system in across the infrared radiation transmissions path type of space and atmosphere for space
It is long by the distance in radiation transmission path through air when observing the radiation transmission path being observed under the conditions of moving-target of endoatmosphere
Degree, atmosphere maximum height, it is observed under the conditions of moving-target height, earth radius and infrared band calculate the radiation transmission path
Transmission characteristic of infrared radiation parameter transmitance ρ and journey radiation Lr, wherein, moving-target height and infrared band are observed according to actual conditions
It is determined that, earth radius is to be observed the radius value at latitude residing for moving-target, and atmosphere maximum height is set as preset value, and radiation is passed
The computing formula of path length on defeated path through air is：Its
In, A represents the position of the measuring system in space, and B represents the position for being observed moving-target of endoatmosphere, and C is radiation transmission
With the intersection point at atmosphere edge on path,Respectively it is observed in moving-target and radiation transmission path and atmosphere
Height of the intersection point at edge away from the earth's core O, ∠ ABO can determine that radiation transmission path is by the relative position relation of A points, B points, O points
The path propagated from B to A；
3rd calculating sub module, for the measurement system in across the infrared radiation transmissions path type of space and atmosphere for space
During the radiation transmission path being observed under the conditions of moving-target that system is observed in space through atmosphere, by being worn in radiation transmission path
Cross air path length, atmosphere maximum height, earth radius and infrared band calculate the radiation transmission path under the conditions of
Transmission characteristic of infrared radiation parameter transmitance ρ and journey radiation Lr, wherein, infrared band determines according to actual conditions, the earth half
Footpath is to be observed the radius value at latitude residing for moving-target, and atmosphere maximum height is set as preset value, in radiation transmission path
Computing formula through the path length of air is：Wherein, A represents the measurement in space
The position of system, B represents the position for being observed moving-target in space, D, E be in radiation transmission path with atmosphere edge
Intersection point,For O points in the earth's core are arrivedVertical line,For atmosphere maximum height is added
Earth radius, radiation transmission path is the path propagated from B to A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611266601.2A CN106768363B (en) | 2016-12-31 | 2016-12-31 | Across space and the moving-target infrared signature inversion method and system of atmosphere |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611266601.2A CN106768363B (en) | 2016-12-31 | 2016-12-31 | Across space and the moving-target infrared signature inversion method and system of atmosphere |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106768363A true CN106768363A (en) | 2017-05-31 |
| CN106768363B CN106768363B (en) | 2018-01-26 |
Family
ID=58951604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611266601.2A Active CN106768363B (en) | 2016-12-31 | 2016-12-31 | Across space and the moving-target infrared signature inversion method and system of atmosphere |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106768363B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007172590A (en) * | 2005-11-16 | 2007-07-05 | Hirosaki Univ | Pixel value correction program, and recording medium |
| CN105243289A (en) * | 2015-11-17 | 2016-01-13 | 上海无线电设备研究所 | Integrated modeling method for infrared radiation characteristic of complicated target |
-
2016
- 2016-12-31 CN CN201611266601.2A patent/CN106768363B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007172590A (en) * | 2005-11-16 | 2007-07-05 | Hirosaki Univ | Pixel value correction program, and recording medium |
| CN105243289A (en) * | 2015-11-17 | 2016-01-13 | 上海无线电设备研究所 | Integrated modeling method for infrared radiation characteristic of complicated target |
Non-Patent Citations (1)
| Title |
|---|
| 郭立红等: "利用大气修正因子提高目标红外辐射特性测量精度", 《光学精密工程》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106768363B (en) | 2018-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20190025062A1 (en) | Crowd sourced mapping with robust structural features | |
| DE102013009035A1 (en) | CONTEXT AND CARD HELP FOR SELF-LEARNING | |
| CN108020212A (en) | A kind of small scale mapping method based on unmanned plane Yu CORS technologies | |
| CN102170697A (en) | Indoor positioning method and device | |
| CN107656537A (en) | Unmanned plane route planning method and device, fan blade inspection method and system based on unmanned plane | |
| CN103983235A (en) | Method for measuring engineering parameters of base station antenna | |
| CN104482918B (en) | Metro shield tunnel forming tunnel portal measurement method | |
| CN101938832A (en) | Division and refinement-based node self-positioning method for wireless sensor network | |
| JP6695451B2 (en) | Dual system type inter-observation multi-level traverse survey method | |
| CN106931942A (en) | A kind of super high rise building tilt measuring method | |
| CN107805984A (en) | The method and system of unilateral measure track control net stake point | |
| Chu et al. | High-accuracy indoor personnel tracking system with a ZigBee wireless sensor network | |
| CN104535041B (en) | Observation station position determination method and high-rise building inclination deformation measuring method | |
| CN105467373B (en) | A kind of broadband is combined bistatic radar cone target physical size estimation method | |
| CN107607904B (en) | A kind of multiple target identity recognition methods based on Angle Information | |
| CN106768363B (en) | Across space and the moving-target infrared signature inversion method and system of atmosphere | |
| CN103200674B (en) | Mobile object positioning and tracing method towards unattended operation transformer station | |
| CN103453882B (en) | A kind of ceiling of clouds measuring system based on aircraft and ceiling of clouds measuring method | |
| CN105388470B (en) | A kind of method of estimating target motion parameter | |
| CN106358209A (en) | Surface covering method of wireless sensor network based on Delaunay tetrahedron | |
| CN105868538B (en) | High-speed railway CPII conducting wire horizontal control network loop closure searches for calculation method | |
| CN103759705B (en) | Three-point closed laying measurement method for composite water level | |
| CN107290776A (en) | A kind of relief surface curved line design method centered on exciting | |
| CN104619017A (en) | Map-aided indoor positioning system WiFi (wireless fidelity) access point deploying scheme | |
| KR101674184B1 (en) | System and Method for measuring position using virtual beacon |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |