CN104567870B - A kind of single pixel star sensor and its target starry sky detection method - Google Patents
A kind of single pixel star sensor and its target starry sky detection method Download PDFInfo
- Publication number
- CN104567870B CN104567870B CN201510050632.3A CN201510050632A CN104567870B CN 104567870 B CN104567870 B CN 104567870B CN 201510050632 A CN201510050632 A CN 201510050632A CN 104567870 B CN104567870 B CN 104567870B
- Authority
- CN
- China
- Prior art keywords
- equipment
- optical
- spatial light
- target
- light modulator
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/02—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by astronomical means
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Astronomy & Astrophysics (AREA)
- Automation & Control Theory (AREA)
- General Physics & Mathematics (AREA)
- Navigation (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The present invention provides a kind of single pixel star sensor and its target starry sky detection method, including light shield, optical telescope, spatial light modulator, single-photon detecting measurement equipment, electronics readout equipment, spaceborne time-frequency device and data processing onboard equipment.Back reflection is modulated by spatial light modulator through the optical signalling that light shield and optical telescope are collected and enters single-photon detecting measurement equipment, time synchronized is carried out to the optical signalling and spatial light modulator of acquisition by spaceborne time-frequency device, and the optical signalling after the modulation matrix called in data processing onboard equipment to spatial light modulator from data processing onboard equipment and modulation is handled.Using quantum imaging technique is calculated, optical signalling is converged, is modulated by spatial light modulator, then access single-photon detector, imaging of the single pixel to starry sky is realized in calculating, and the present invention is easier to detect dark celestial body, and detectivity greatly improves.
Description
Technical field
The present invention relates to a kind of star sensor based on quantum imaging technology and its target starry sky detection method, especially one
Kind single pixel star sensor and its target starry sky detection method, belong to star sensor field.
Background technology
Star sensor is most succeeded in developing early in eighties of last century the fifties, is mainly used in aircraft and missile guidance.So far
The development of three phases is lived through, the space flight and aviation device such as guided missile, aircraft, spaceship, satellite is widely used to, is related to more
Individual fields of measurement.More several conventional sensors, star sensor have precision it is high, it is in light weight, low in energy consumption, without drift and work
The advantages that mode is more.The star sensor of early stage uses image dissector, and as sensitive detection parts, this constructing apparatus is relatively simple, mainly should
For ground instruments such as large-scale astronomical telescope and missile guidances, but due to the limitation of image dissector itself simulation stability, it is impossible to
Meet high-precision requirement.
1974, U.S. jet laboratory (JPL) started to develop second generation star sensor --- --- CCD stars sensitivity
Device, compared with the star sensor of first stage, CCD star sensors have high-resolution, radiation resistance, geometric optics linearly strong etc. excellent
Gesture, it is small with respect to visual field, although single star measurement accuracy is high, still, single star identification and Attitude Calculation too complex are quick with clock star
The quality and volume of sensor are also bigger；To last century the nineties, in order to meet the strict demand of space flight device, based on light
, precision optical machinery, electronics and computer technology increase substantially, and second generation CCD star sensors start to occur, of new generation
Star sensor has the advantages such as visual field is big, star catalogue is small, more there is the function of independent navigation.Current Domestic is in the world using more
Or CCD star sensors, but no matter the first generation or second generation star sensor, CCD star sensors are all based on the development of CCD camera
Level, it is limited to the parameters such as CCD pixel number.
The content of the invention
The present invention technology solve problem be, in view of the shortcomings of the prior art, there is provided a kind of single pixel star sensor and its
Target starry sky detection method, the present invention utilize single-photon detecting measurement equipment based on this brand-new optical field detection mode of quantum imaging
Optical signalling after space exploration light modulator modulates, to weak light detection efficiency high, therefore detection faint star ability is strong, utilizes simultaneously
Intensity related algorithm and appropriate signal processing algorithm can greatly suppress ambient noise, have broad application prospects.
The present invention technical solution be：A kind of single pixel star sensor, including light shield, optical telescope, space
Optical modulator, single-photon detecting measurement equipment, electronics readout equipment, spaceborne time-frequency device, data processing onboard equipment；
Light shield be arranged on optical telescope before, for blocking the veiling glare from non-targeted celestial body, be greatly reduced into
Enter the noise of optical telescope；
Optical telescope is used to converge the light from target celestial body；
Spaceborne time-frequency device provides absolute time standard for spatial light modulator and electronics readout equipment, while to space
Optical modulator and electronics readout equipment carry out time synchronized；
Spatial light modulator includes micro mirror array and controller, and micro mirror array is placed in the optical focal plane of optical telescope
On so that target starry sky is imaged on micro mirror array by optical telescope；
Controller from the different modulation matrix of data processing onboard equipment calls to micro mirror array by being modulated, micro mirror
Array reflexes to the optical signalling after modulation on single-photon detecting measurement equipment；
Single-photon detecting measurement equipment receives the optical signalling after micro mirror array modulation, and by the optical signalling after modulating through light
Electricity is converted to electric signal and is sent into electronics readout equipment, and the electric signal is read by electronics readout equipment；
The data matrix for the random distribution being largely made up of 0 and 1 is prestored in data processing onboard equipment as empty
Between optical modulator modulation matrix；When single pixel star sensor works, controller from data processing onboard equipment calls by adjusting
Matrix processed is modulated to the micro mirror array of spatial light modulator, corresponds to single-photon detecting to modulation matrix and the modulation matrix afterwards
The distribution of light intensity signal of measurement equipment output carries out intensity correlation calculating, so as to obtain the image of target celestial body；According to the target satellite
The image of body, accurate location of the target celestial body in starry sky is obtained by asterism extraction and star identification；Existed according to the target celestial body
Positional information in starry sky, by Attitude Calculation, obtain being loaded with the posture position information of the satellite of the single pixel star sensor, pass
The control system of the satellite is defeated by, to adjust the posture of the satellite.
Described electronics readout equipment also carries out noise reduction pretreatment, record to the electric signal obtained by single-photon detecting measurement equipment
The arrival time of the electric signal；Meanwhile each modulation matrix that spaceborne time-frequency device calls to spatial light modulator respectively
The electric signal of input time and record stamps same label.
Described spaceborne time-frequency device includes satellite atomic clock, GPS and time synchronism equipment, satellite atomic clock and
GPS is used to provide absolute time standard for spatial light modulator and electronics readout equipment, and time synchronism equipment is used for
Time synchronized is carried out to spatial light modulator and electronics readout equipment.
A kind of target starry sky detection method of single pixel star sensor, step are as follows：
(1) posture of light shield and optical telescope is adjusted, them is directed at the nautical star in detection day area；
(2) visible ray that step (1) nautical star in visual field is sent is converged in by Jiao by light shield and optical telescope
In plane so that the visible ray that nautical star is sent, i.e. target starry sky, imaged on micro mirror array, realized by optical telescope
The optical imagery of target starry sky；
(3) controller of spatial light modulator to receiving by from data processing onboard equipment calls modulation matrix, walking
Suddenly the micro mirror array of the optical imagery of the target starry sky of (2) is modulated, and to modulate the optical imagery of target starry sky, i.e. optics is believed
Number；
(4) optical signalling after the photon counter of single photon detection equipment utilization itself is modulated to step (3) is visited
After survey, then exported after the optical signalling is converted into electric signal, deliver to electronics readout equipment and recorded；
(5) during the input for each modulation matrix that spaceborne time-frequency device calls to spatial light modulator step (3) respectively
Between and the electric signal of step (4) stamp same label, export to data processing onboard equipment；
(6) data processing onboard equipment corresponds to single-photon detecting measurement equipment to the modulation matrix of step (3) with the modulation matrix
The distribution of light intensity signal of output carries out intensity correlation calculating, obtains the image of target celestial body.
The beneficial effect of the present invention compared with prior art is：
(1), detectivity is high
Utilization space optical modulator of the present invention carries out spatial light tune according to the mode of operation of step (3) to the optical signal of reception
System, and detected using the distribution of light intensity signal after the single-photon detecting measurement equipment system of exchanging, weak light detection ability is greatly improved,
Picture is calculated as to target starry sky finally by intensity correlation method, therefore is easier to detect dark celestial body using the present invention,
Detectivity greatly improves.
(2), speed of detection is very fast
Because present invention utilizes spatial light modulator and single-photon detecting measurement equipment detection distribution of light intensity signal, contrast are other
The star sensor of type, have to the detectivity of faint star and greatly improve, therefore need to only scan narrower visual field and be obtained with
Available for the celestial body number of navigation, therefore speed of detection is improved.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the single pixel star sensor of the present invention；
Fig. 2 is the target starry sky detection method flow chart of the single pixel star sensor of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
A kind of single pixel star sensor, including light shield, optical telescope, spatial light modulator, single-photon detecting measurement equipment,
Electronics readout equipment, spaceborne time-frequency device, data processing onboard equipment, wherein, before light shield is arranged on optical telescope, use
In blocking the veiling glare from the non-targeted celestial body such as the sun, the moon, the earth, so that the noise for entering optical telescope is greatly reduced；
Optical telescope is used to converge the light from target celestial body；Spaceborne time-frequency device is that spatial light modulator and electronics read and set
It is standby that absolute time standard is provided, while time synchronized is carried out to spatial light modulator and electronics readout equipment；Space light modulation
Device includes micro mirror array and controller, and micro mirror array is placed on the optical focal plane of optical telescope so that target starry sky passes through
Optical telescope is imaged on micro mirror array；Controller by from the different modulation matrix of data processing onboard equipment calls to micro-
Lens array is modulated, and micro mirror array reflexes to the optical signalling after modulation on single-photon detecting measurement equipment；Single photon detection is set
The standby optical signalling received after micro mirror array modulation, and be that electric signal is sent into electricity through opto-electronic conversion by the optical signalling after modulating
Son learns readout equipment, and the electric signal is read by electronics readout equipment；Prestored in data processing onboard equipment largely by 0
With modulation matrix of the data matrix as spatial light modulator of the random distribution of 1 composition；When single pixel star sensor works, control
Device processed is right afterwards by being modulated from data processing onboard equipment calls modulation matrix to the micro mirror array of spatial light modulator
The distribution of light intensity signal that modulation matrix corresponds to the output of single-photon detecting measurement equipment with the modulation matrix carries out intensity correlation calculating, so as to
Obtain the image of target celestial body；According to the image of the target celestial body, target celestial body is obtained in star by asterism extraction and star identification
Aerial accurate location；According to the positional information of the target celestial body in starry sky, by Attitude Calculation, obtain being loaded with the single pixel
The posture position information of the satellite of star sensor, the control system of the satellite is transferred to, to adjust the posture of the satellite.
Further, electronics readout equipment also carries out noise reduction pretreatment to the electric signal obtained by single-photon detecting measurement equipment,
Record the arrival time of the electric signal；Meanwhile each modulation square that spaceborne time-frequency device calls to spatial light modulator respectively
The input time of battle array and the electric signal of record stamp same label.
Further, spaceborne time-frequency device includes satellite atomic clock, GPS and time synchronism equipment, wherein, it is spaceborne
Atomic clock and GPS are used to provide absolute time standard, time synchronized for spatial light modulator and electronics readout equipment
Equipment is used to carry out time synchronized to spatial light modulator and electronics readout equipment.
As shown in figure 1, light shield, optical telescope, space light modulation are included according to the single pixel star sensor of the present invention
Device, single-photon detecting measurement equipment, electronics readout equipment, spaceborne time-frequency device, data processing onboard equipment.
Before light shield is arranged on optical telescope, non-targeted celestial body (for example, the sun, the moon, earth) is come from for blocking
Veiling glare, be greatly reduced enter optical telescope noise；Optical telescope is used to converge the light from target celestial body；
Optical telescope is made up of optical lens group and machinery mount.Its concrete structure design can be adjusted according to actual conditions.
Spaceborne time-frequency device provides absolute time standard for spatial light modulator and electronics readout equipment, while to space
Optical modulator and electronics readout equipment carry out time synchronized；Spaceborne time-frequency device include satellite atomic clock, GPS and when
Between synchronizer, wherein, satellite atomic clock and GPS are used to provide absolutely for spatial light modulator and electronics readout equipment
To time standard, time synchronism equipment is used to carry out time synchronized to spatial light modulator and electronics readout equipment.Specifically,
Time synchronism equipment can be realized using time synchronized control circuit.
Spatial light modulator includes micro mirror array and controller, and micro mirror array is placed in the optical focal plane of optical telescope
On so that target starry sky is imaged on micro mirror array by optical telescope；Generally, the micro mirror array of spatial light modulator can match somebody with somebody
Drive circuit and cooling device are put, for enabling micro mirror array to obtain the image that optical telescope converges to obtain in real time.
Controller from the different modulation matrix of data processing onboard equipment calls to micro mirror array by being modulated, micro mirror
Array reflexes to the optical signalling after modulation on single-photon detecting measurement equipment.
Single-photon detecting measurement equipment receives the optical signalling after micro mirror array modulation, and by the optical signalling after modulating through light
Electricity is converted to electric signal and is sent into electronics readout equipment, and the electric signal is read by electronics readout equipment.
Electronics readout equipment also carries out noise reduction pretreatment to the electric signal obtained by single-photon detecting measurement equipment, records the telecommunications
Number arrival time；Meanwhile spaceborne time-frequency device respectively to spatial light modulator call each modulation matrix input when
Between and record electric signal stamp same label.
The data matrix for the random distribution being largely made up of 0 and 1 is prestored in data processing onboard equipment as empty
Between optical modulator modulation matrix；When single pixel star sensor works, controller from data processing onboard equipment calls by adjusting
Matrix processed is modulated to the micro mirror array of spatial light modulator, corresponds to single-photon detecting to modulation matrix and the modulation matrix afterwards
The distribution of light intensity signal of measurement equipment output carries out intensity correlation calculating, so as to obtain the image of target celestial body；According to the target satellite
The image of body, accurate location of the target celestial body in starry sky is obtained by asterism extraction and star identification；Existed according to the target celestial body
Positional information in starry sky, by Attitude Calculation, obtain being loaded with the posture position information of the satellite of the single pixel star sensor, pass
The control system of the satellite is defeated by, to adjust the posture of the satellite.
As shown in Fig. 2 a kind of specific workflow of the target starry sky detection of single pixel star sensor of the present invention is：
(1) posture of light shield and optical telescope is adjusted, them is directed at the nautical star in detection day area；
(2) visible ray that step (1) nautical star in visual field is sent is converged in by Jiao by light shield and optical telescope
In plane so that the visible ray that nautical star is sent, i.e. target starry sky, imaged on micro mirror array, realized by optical telescope
The optical imagery of target starry sky；
(3) controller of spatial light modulator to receiving by from data processing onboard equipment calls modulation matrix, walking
Suddenly the micro mirror array of the optical imagery of the target starry sky of (2) is modulated, and to modulate the optical imagery of target starry sky, i.e. optics is believed
Number；
(4) optical signalling after the photon counter of single photon detection equipment utilization itself is modulated to step (3) is visited
After survey, then exported after the optical signalling is converted into electric signal, deliver to electronics readout equipment and recorded；
(5) during the input for each modulation matrix that spaceborne time-frequency device calls to spatial light modulator step (3) respectively
Between and the electric signal of step (4) stamp same label, export to data processing onboard equipment；
(6) data processing onboard equipment corresponds to single-photon detecting measurement equipment to the modulation matrix of step (3) with the modulation matrix
The distribution of light intensity signal of output carries out intensity correlation calculating, obtains the image of target celestial body；Data processing onboard equipment is further
By nautical star recognizer and posture filtering algorithm etc., sentence star, the positioning of single star, star identification, star sensor attitude angle and
The calculating processing of spacecraft attitude angle, determines sensing of the star sensor optical axis relative to inertial coodinate system, provides star sensor place
Posture four element of the spacecraft under inertial coodinate system.
Here, it should be noted that the content not being described in detail in this specification, is that those skilled in the art pass through this theory
What description and prior art in bright book can be realized, therefore, do not repeat.
The preferred embodiments of the present invention are the foregoing is only, are not used for limiting the scope of the invention.For ability
For the technical staff in domain, on the premise of not paying creative work, some modification and replacement can be made to the present invention,
All such modifications and replacement should be all included within the scope of the present invention.
Claims (4)
1. a kind of single pixel star sensor, it is characterised in that including light shield, optical telescope, spatial light modulator, single photon
Detecting devices, electronics readout equipment, spaceborne time-frequency device, data processing onboard equipment；
Before light shield is arranged on optical telescope, for blocking the veiling glare from non-targeted celestial body, enter light to be greatly reduced
Learn the noise of telescope；
Optical telescope is used to converge the light from target celestial body；
Spaceborne time-frequency device provides absolute time standard for spatial light modulator and electronics readout equipment, while spatial light is adjusted
Device and electronics readout equipment processed carries out time synchronized；
Spatial light modulator includes micro mirror array and controller, and micro mirror array is placed on the optical focal plane of optical telescope, made
Target starry sky is obtained to image on micro mirror array by optical telescope；
Controller from the different modulation matrix of data processing onboard equipment calls to micro mirror array by being modulated, micro mirror array
Optical signalling after modulation is reflexed on single-photon detecting measurement equipment；
Single-photon detecting measurement equipment receives the optical signalling after micro mirror array modulation, and the optical signalling after modulating is turned through photoelectricity
Electric signal is changed to, the magnitude of voltage of output light field strength signal, is sent into electronics readout equipment, being read by electronics readout equipment should
Electric signal；
The data matrix for the random distribution being largely made up of 0 and 1 is prestored in data processing onboard equipment as spatial light
The modulation matrix of modulator；When single pixel star sensor works, controller from data processing onboard equipment calls by modulating square
Battle array is modulated to the micro mirror array of spatial light modulator, afterwards to single photon detection corresponding to modulation matrix and the modulation matrix
The magnitude of voltage of the distribution of light intensity signal of equipment output carries out intensity correlation calculating, so as to obtain the image of target celestial body；According to this
The image of target celestial body, accurate location of the target celestial body in starry sky is obtained by asterism extraction and star identification；According to the target
Accurate location of the celestial body in starry sky, by Attitude Calculation, obtain being loaded with the posture position of the satellite of the single pixel star sensor
Information, the control system of the satellite is transferred to, to adjust the posture of the satellite.
A kind of 2. single pixel star sensor according to claim 1, it is characterised in that：Described electronics readout equipment is also
Noise reduction pretreatment is carried out to the electric signal obtained by single-photon detecting measurement equipment, records the arrival time of the electric signal；Meanwhile when spaceborne
The input time for each modulation matrix that frequency device calls to spatial light modulator respectively and the electric signal of record are stamped identical
Label.
A kind of 3. single pixel star sensor according to claim 1, it is characterised in that：Described spaceborne time-frequency device includes
Satellite atomic clock, GPS and time synchronism equipment, satellite atomic clock and GPS be used for for spatial light modulator and
Electronics readout equipment provides absolute time standard, and time synchronism equipment is used for spatial light modulator and electronics readout equipment
Carry out time synchronized.
4. the target starry sky detection method of a kind of single pixel star sensor, it is characterised in that step is as follows：
(1) posture of light shield and optical telescope is adjusted, them is directed at the nautical star in detection day area；
(2) visible ray that step (1) nautical star in visual field is sent is converged in by focal plane by light shield and optical telescope
On so that the visible ray that nautical star is sent, i.e. target starry sky, imaged in by optical telescope on micro mirror array, realize target
The optical imagery of starry sky；
(3) controller of spatial light modulator is by from data processing onboard equipment calls modulation matrix, to receiving step (2)
The micro mirror array of optical imagery of target starry sky be modulated, to modulate the optical imagery of target starry sky, i.e. optical signalling；
(4) after the optical signalling after the photon counter of single photon detection equipment utilization itself is modulated to step (3) detects,
Exported after the optical signalling is converted into electric signal again, deliver to electronics readout equipment and recorded；
(5) spaceborne time-frequency device respectively to spatial light modulator step (3) call each modulation matrix input time and
The electric signal of step (4) stamps same label, exports to data processing onboard equipment；
(6) data processing onboard equipment corresponds to the output of single-photon detecting measurement equipment to the modulation matrix of step (3) with the modulation matrix
Distribution of light intensity signal carry out intensity correlation calculating, obtain target celestial body image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510050632.3A CN104567870B (en) | 2015-01-30 | 2015-01-30 | A kind of single pixel star sensor and its target starry sky detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510050632.3A CN104567870B (en) | 2015-01-30 | 2015-01-30 | A kind of single pixel star sensor and its target starry sky detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104567870A CN104567870A (en) | 2015-04-29 |
| CN104567870B true CN104567870B (en) | 2018-02-09 |
Family
ID=53084486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510050632.3A Active CN104567870B (en) | 2015-01-30 | 2015-01-30 | A kind of single pixel star sensor and its target starry sky detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104567870B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195371B (en) * | 2017-12-26 | 2020-04-10 | 清华大学 | DMD-based high-dynamic multi-satellite target extraction method, device and system |
| CN108549275B (en) * | 2018-03-01 | 2021-01-19 | 南昌大学 | Control device and control method for single photon compression imaging |
| CN109001762B (en) * | 2018-06-08 | 2020-12-25 | 上海微小卫星工程中心 | Ground gas light inhibition method and system for synchronous belt target optical observation satellite |
| CN109213037B (en) * | 2018-08-28 | 2021-03-26 | 南昌大学 | Sampling time self-adaptive single photon compression imaging control method and control device |
| CN111965664B (en) * | 2020-08-19 | 2024-01-23 | 深圳元戎启行科技有限公司 | Light emitting device, imaging system, and emission light modulation method |
| CN112325874B (en) * | 2020-10-21 | 2023-02-14 | 中国科学院上海光学精密机械研究所 | System and method for measuring strength correlation of star angular position based on snake-shaped light path |
| CN114545428B (en) * | 2022-03-02 | 2024-02-02 | 中国科学院光电技术研究所 | Single-pixel-single-photon detector-based tracking range laser radar device and method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7617070B2 (en) * | 2004-09-10 | 2009-11-10 | Honeywell International Inc. | Absolute position determination of an object using pattern recognition |
| CN101701822B (en) * | 2009-11-06 | 2011-08-24 | 中国人民解放军国防科学技术大学 | Star tracking method of star sensor based on correlation of optical joint and transformation |
| CN102393248B (en) * | 2011-10-26 | 2013-09-11 | 中国科学院空间科学与应用研究中心 | Time-resolved extreme-low-light multispectral imaging system and method |
| CN104316046B (en) * | 2014-10-10 | 2017-03-15 | 北京航天控制仪器研究所 | A kind of intensity correlation star sensor |
-
2015
- 2015-01-30 CN CN201510050632.3A patent/CN104567870B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104567870A (en) | 2015-04-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104567870B (en) | A kind of single pixel star sensor and its target starry sky detection method | |
| Liebe et al. | Micro APS based star tracker | |
| WO2020117530A9 (en) | Star tracker for multiple-mode detection and tracking of dim targets | |
| CN108645401A (en) | All-day star sensor star point extraction method based on attitude correlation image superposition | |
| RU2517800C1 (en) | Method of coelosphere coverage from space craft for surveillance of celestial bodies and coelosphere coverage space system for surveillance of celestial bodies and detection of solar system bodies to this end | |
| Gandilo et al. | Attitude determination for balloon-borne experiments | |
| CN102927982A (en) | Double-spectrum autonomous navigation sensor and design method of double-spectrum autonomous navigation sensor | |
| Farian et al. | A miniaturized two-axis ultra low latency and low-power sun sensor for attitude determination of micro space probes | |
| Kucharski et al. | Spin axis orientation of Ajisai determined from Graz 2 kHz SLR data | |
| Ofek et al. | The large array survey telescope—system overview and performances | |
| CN104316046B (en) | A kind of intensity correlation star sensor | |
| Wang et al. | Image and data processing of digital zenith telescope (DZT-1) of China | |
| CN105424034A (en) | Shipborne all-time starlight and inertia combined navigation system | |
| Scott et al. | Toward microsatellite based space situational awareness | |
| Katake et al. | StarCam SG100: a high-update rate, high-sensitivity stellar gyroscope for spacecraft | |
| CN106408570B (en) | Solar sail deployed configuration dynamic characteristic in-orbit identification method based on Binocular vision photogrammetry | |
| Cao et al. | An all-day attitude sensor integrating stars and sun measurement based on extended pixel response of CMOS APS imager | |
| Lei et al. | Inertial information based star detection for airborne star sensor | |
| Weaver et al. | High-resolution Search for Kuiper Belt Object Binaries from New Horizons | |
| CN103398711B (en) | The earth sensor that many visual fields are separated | |
| CN109724589B (en) | High data update rate star sensor | |
| Irvin | CMOS Imager for Nanosatellite Applications | |
| Scott et al. | Speckle interferometry tracking of on-orbit servicing in geostationary orbit | |
| Kucharski et al. | Spectral response of Experimental Geodetic Satellite determined from high repetition rate SLR data | |
| Kucharski et al. | Spin parameters of low Earth orbiting satellites Larets and Stella determined from satellite laser ranging data |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |