CN106289237B - APS digital sun sensor solar angle calculation method and system - Google Patents

APS digital sun sensor solar angle calculation method and system Download PDF

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Publication number
CN106289237B
CN106289237B CN201610601098.5A CN201610601098A CN106289237B CN 106289237 B CN106289237 B CN 106289237B CN 201610601098 A CN201610601098 A CN 201610601098A CN 106289237 B CN106289237 B CN 106289237B
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solar
angle
sun sensor
sun
aps
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CN106289237A (en
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何益康
马雪阳
沈怡颹
余维
杨真
谢任远
李苗
周连文
朱晏庆
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Shanghai Aerospace Control Technology Institute
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    • 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
    • G01C21/025—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by astronomical means with the use of startrackers
    • 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
    • G01C21/20—Instruments for performing navigational calculations

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • General Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
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Abstract

The present invention discloses a kind of APS digital sun sensor solar angle calculation method, which includes: reading the solar facula position of digital sun sensor；According to solar facula position, initial sun incidence angle is calculated；The calibrating parameters of initial sun incidence angle combination digital sun sensor, iterative calculation obtain solar incident angle；Revised two-dimentional solar angle is calculated.The present invention substantially increases solar angle computational accuracy by the solar angle amendment and iterative calculation of sun sensor, helps to promote attitude of satellite precision.

Description

APS digital sun sensor solar angle calculation method and system
Technical field
The present invention discloses a kind of solar angle calculation method, and in particular to a kind of APS digital sun sensor solar angle meter Calculate method and system.
Background technique
Digital sun sensor is the necessary configuration of satellite, and the solar angle output accuracy of sun sensor affects satellite Attitude angle determines precision.Solar angle is directly generally calculated according to the solar facula position of sun sensor output and focal length, this kind Calculation method is due to APS (Advanced Photo System, advanced picturing system) digital sun sensor internal structure It influences, when solar angle is bigger, error is bigger, leverages the attitude of satellite and determines precision.It is needed thus according to sun sensor Internal error transitive relation proposes that a kind of solar angle calculation method improves precision.
Summary of the invention
The present invention provides a kind of APS digital sun sensor solar angle calculation method and system, improves solar angle and calculates Precision.
To achieve the above object, the present invention provides a kind of APS digital sun sensor solar angle calculation method, feature It is that the solar angle calculation method includes:
Read the solar facula position of digital sun sensor；
According to solar facula position, initial sun incidence angle is calculated；
The calibrating parameters of initial sun incidence angle combination digital sun sensor, iterative calculation obtain solar incident angle；
Revised two-dimentional solar angle is calculated.
Above-mentioned calculating initial sun incident angle α0Include:
X=CentX-Xc (1)
Y=CentY-Yc (2)
Formula (1), (2), in (3), (Xc, Yc) be digital sun sensor sunlight vertical incidence facula position, referred to as Zero-bit coordinate, f are the focal length of digital sun sensor, and (CentX, CentY) is current solar facula position.
The calibrating parameters of above-mentioned initial sun incidence angle combination digital sun sensor, iterative calculation obtain sun incidence Angle includes:
It is successively calculated by the sequence of formula (4), (5), (6), in triplicate, solar incident angle α is calculated3；
Wherein, α0Calibrating parameters for initial sun incidence angle, digital sun sensor include: focal length f, it is digital too Positive sensor self-filtering piece refractive index n, digital sun sensor self-filtering piece thickness H, zero-bit coordinate (Xc, Yc)。
It is above-mentioned revised two-dimentional solar angle is calculated to include:
In formula (7), αX,αYRespectively X is to revised solar angle and the revised solar angle of Y-direction, α3For iterative calculation three Secondary obtained solar incident angle.
A kind of APS digital sun sensor solar angle computing system, its main feature is that, which includes:
Solar angle computing system position read module reads the solar facula position of digital sun sensor；
Initial sun incidence angle computing module receives and according to solar facula position, calculating initial sun incident angle α0；
Solar incident angle computing module receives initial sun incidence angle, and combines the calibration of digital sun sensor Parameter, iterative calculation obtain solar incident angle；
Two-dimentional solar angle computing module receives iterative calculation and obtains solar incident angle, revised two dimension is calculated Solar angle.
The solar angle of APS digital sun sensor solar angle calculation method and system and the prior art of the present invention calculates skill Art is compared, and the advantage is that, the present invention substantially increases solar angle by the solar angle amendment and iterative calculation of sun sensor Computational accuracy helps to promote attitude of satellite precision.
Detailed description of the invention
Fig. 1 is the flow chart of APS digital sun sensor solar angle calculation method of the present invention.
Specific embodiment
Below in conjunction with attached drawing, specific embodiments of the present invention are further illustrated.
As shown in Figure 1, the invention discloses a kind of APS digital sun sensor solar angle calculation method, feature exists In, the solar angle calculation method comprising the following steps:
S1, the solar facula position for reading digital sun sensor.
S2, it is based on solar facula position, calculates initial sun incident angle α according to formula (1), (2), (3)0:
X=CentX-Xc (1)
Y=CentY-Yc (2)
Formula (1), (2), in (3), (Xc, Yc) be digital sun sensor sunlight vertical incidence facula position, referred to as Zero-bit coordinate, f are the focal length of digital sun sensor, and (CentX, CentY) is current solar facula position.
The calibrating parameters of S3, initial sun incidence angle combination digital sun sensor, according to formula (4), (5), (6) iteration Solar incident angle is calculated:
It is successively calculated by the sequence of formula (4), (5), (6), in triplicate, solar incident angle α is calculated3.Here α3Attach most importance to Compound (4), (5), (6) iterate to calculate the solar incident angle obtained three times
A when k is okRepresent initial sun incidence angle (i.e. α0), a when k is 1kIt is primary to represent repetitive (4), (5), (6) iteration Obtained solar incident angle, a when k is 2kRepresent repetitive (4), (5), the secondary obtained solar incident angle of (6) iteration.
Wherein, the calibrating parameters of digital sun sensor include: the focal length f of digital sun sensor, it is digital too Positive sensor self-filtering piece refractive index n, digital sun sensor self-filtering piece thickness H, zero-bit coordinate (Xc, Yc)。
S4, revised two-dimentional solar angle is calculated according to formula (7):
In formula (7), αX,αYRespectively X is to revised solar angle and the revised solar angle of Y-direction, α3For iterative calculation three Secondary obtained solar incident angle.
The invention also discloses a kind of APS digital sun sensor solar angle computing system, the solar angle computing systems Include:
Solar angle computing system position read module reads the solar facula position of digital sun sensor.
Initial sun incidence angle computing module, input terminal connect the output of solar angle computing system position read module, It receives and according to solar facula position, calculating initial sun incident angle α0。
Solar incident angle computing module, input terminal connect the output of initial sun incidence angle computing module, receive initial Solar incident angle, and the calibrating parameters of digital sun sensor are combined, iterative calculation obtains solar incident angle.
Two-dimentional solar angle computing module, input terminal connect the output of solar incident angle computing module, receive iterative calculation Solar incident angle is obtained, revised two-dimentional solar angle is calculated.
It is discussed in detail although the contents of the present invention have passed through above preferred embodiment, but it should be appreciated that above-mentioned Description is not considered as limitation of the present invention.After those skilled in the art have read above content, for of the invention A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.

Claims (2)

1. a kind of APS digital sun sensor solar angle calculation method, which is characterized in that the solar angle calculation method includes:
Read the solar facula position of APS digital sun sensor；
According to solar facula position, initial sun incidence angle is calculated；
The calibrating parameters of initial sun incidence angle combination APS digital sun sensor, iterative calculation obtain solar incident angle；
Revised two-dimentional solar angle is calculated；
The calculating initial sun incident angle α0Include:
X=CentX-Xc (1)
Y=CentY-Yc (2)
Formula (1), (2), in (3), (Xc, Yc) be APS digital sun sensor sunlight vertical incidence facula position, referred to as Zero-bit coordinate, f are the focal length of APS digital sun sensor, and (CentX, CentY) is current solar facula position；
The calibrating parameters of the initial sun incidence angle combination APS digital sun sensor, iterative calculation obtain sun incidence Angle includes:
Wherein, αkTo iterate to calculate k obtained solar incident angle, αk+1To iterate to calculate k+1 obtained solar incident angle, k =0,1,2；The calibrating parameters of APS digital sun sensor include: focal length f, APS digital sun sensor self-filtering piece Refractive index n, APS digital sun sensor self-filtering piece thickness H；
It is described revised two-dimentional solar angle is calculated to include:
In formula (7), αX,αYRespectively X is to revised solar angle and the revised solar angle of Y-direction, α3For by formula (4), (5), (6) sequence successively calculates, and in triplicate, the solar incident angle that iterative calculation obtains three times is calculated.
2. it is digital to be applied to APS as described in claim 1 for a kind of APS digital sun sensor solar angle computing system Sun sensor solar angle calculation method, which is characterized in that the solar angle computing system includes:
Solar angle computing system position read module reads the solar facula position of APS digital sun sensor；
Initial sun incidence angle computing module receives and according to solar facula position, calculating initial sun incident angle α0；
Solar incident angle computing module receives initial sun incidence angle, and the calibration of APS digital sun sensor is combined to join Number, iterative calculation obtain solar incident angle；
Two-dimentional solar angle computing module receives iterative calculation and obtains solar incident angle, and the revised two-dimentional sun is calculated Angle.
CN201610601098.5A 2016-07-27 2016-07-27 APS digital sun sensor solar angle calculation method and system Active CN106289237B (en)

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Publication number Priority date Publication date Assignee Title
CN106843250B (en) * 2017-02-15 2019-12-10 上海航天控制技术研究所 method for judging limited illumination surface of 01-type sun sensor view field
CN109625335B (en) * 2018-12-10 2021-12-07 上海航天控制技术研究所 Sun capturing method based on angular velocity estimation information and sun sensor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102135435A (en) * 2010-12-20 2011-07-27 清华大学 Error correction method and device for digital sun sensor
CN102435204A (en) * 2011-09-05 2012-05-02 清华大学 Precision compensation method for area APS (active pixel sensor) digital sun sensor
CN105091846A (en) * 2015-09-28 2015-11-25 清华大学 Wireless self-powered digital sun sensor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102135435A (en) * 2010-12-20 2011-07-27 清华大学 Error correction method and device for digital sun sensor
CN102435204A (en) * 2011-09-05 2012-05-02 清华大学 Precision compensation method for area APS (active pixel sensor) digital sun sensor
CN105091846A (en) * 2015-09-28 2015-11-25 清华大学 Wireless self-powered digital sun sensor

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
四象限差动式模拟太阳敏感器设计;王俊等;《传感技术学报》;20121231;第25卷(第12期);1659-1663
基于SOPC的太阳敏感器信息处理系统;樊巧云等;《光电工程》;20130131;第40卷(第1期);31-37
面向高精度太阳敏感器的探测器复用技术;卫旻嵩等;《清华大学学报（自然科学版）》;20141231;第54卷(第10期);1271-1275
高精度准直式太阳模拟器及其关键技术研究;刘石;《中国博士学位论文全文数据库工程科技II辑》;20140715(第7期);C031-38

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