CN1693846A - Precision measuring system for space target - Google Patents
Precision measuring system for space target Download PDFInfo
- Publication number
- CN1693846A CN1693846A CN 200510040607 CN200510040607A CN1693846A CN 1693846 A CN1693846 A CN 1693846A CN 200510040607 CN200510040607 CN 200510040607 CN 200510040607 A CN200510040607 A CN 200510040607A CN 1693846 A CN1693846 A CN 1693846A
- Authority
- CN
- China
- Prior art keywords
- subsystem
- output
- connects
- image
- fixed star
- 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.)
- Pending
Links
Abstract
The invention relates to a space object accurate measuring system that includes optical imaging subsystem, image collection subsystem, GPS time subsystem, and server control subsystem, and astronomical position subsystem that contains image processor, star searching and matching machine, and location mechanism. The outputs of the image collection subsystem and GPS time subsystem connect to the star searching and matching machine. The output of the image processor connects to star searching and matching machine. The output of the star searching and matching machine is connected to location mechanism. The system is not influenced by the error of telescope location and south-north pointing, visual field center of CCD and the optical shaft center, coded disc installation, pixel of the CCD, atmospheric refraction and data of the testing coordination. It can meet the request of modern science research and military affairs.
Description
Technical field
The present invention relates to the precision measuring system of real-time astronomical fixation fixed system, particularly a kind of extraterrestrial target of a kind of extraterrestrial target.
Background technology
In many fields such as scientific research, military affairs, all need the monitoring of extraterrestrial target, thereby provide position and the variation thereof on high of extraterrestrial target each moment, determine the running track of extraterrestrial target, thereby obtain the accurate information of extraterrestrial target (track characteristic, physical configuration and purpose).
Prior art adopts the mode of axle system location that extraterrestrial target is positioned, and this positioning system comprises with the lower part: optical imagery subsystem, image acquisition subsystem, gps time subsystem, servocontrol subsystem and axle are the positioning software subsystem.The optical imagery subsystem comprises traditional optical lens and detector C CD (CCD is installed on the focal plane of optical lens), his function is that the light that will collect accumulates on the target surface of CCD, CCD is an electronics with the photon conversion that receives, by the gray level image of mould/number conversion for measuring and handle.The image acquisition subsystem mainly comprises image pick-up card; His function is to control CCD according to certain frequency collection gray level image (for example per second is gathered 5 two field pictures), and the image of gathering is input in the control computer.Servo-control system mainly comprises the driving circuit of the code-disc that is installed on the telescope, drive motor (stepper motor or torque motor), motor; His main energy can be to provide position of telescope information according to the rule control telescope precision tracking target of target travel with according to certain frequency to control computer.The gps time subsystem comprises the GPS receiver, the Data Input Interface card; His function is to provide the Coordinated Universal Time(UTC) according to certain frequency (such as 500 hertz) to control computer.Axle is that the positioning software subsystem comprises that axle is a positioning software, and major function is to handle the image of input, obtains the gray scale centroid position of target on image, according to the locus of traditional mathematical method reduction target.This extraterrestrial target locator meams is a kind of absolute fix mode, bearing accuracy is subjected to a series of factor affecting, comprising: telescope horizontalization and north and south error in pointing, center, CCD visual field and optical axis center deviation, code-disc alignment error, CCD picture dot equivalent are forbidden the error that causes, the incorrect error that causes of data that atmospheric refraction corrects the not strict sum of errors survey station coordinate that causes.Because axle system location is subjected to the influence of series of factors,, can't realize the extraterrestrial target micrometric measurement so the result of axle system location has characteristics such as stability is low, precision is low.
Summary of the invention
The precision measuring system that the purpose of this invention is to provide a kind of brand-new extraterrestrial target, he is less demanding to shafting precision, but its positioning result is not subjected to telescope horizontalization and north and south error in pointing, center, CCD visual field and optical axis center deviation, code-disc alignment error, CCD picture dot equivalent to be forbidden the error that causes, the influence that atmospheric refraction corrects the incorrect error that causes of data of the not strict sum of errors survey station coordinate that causes, can realize the high-precision mensuration of extraterrestrial target.Make the precision of measurement result of extraterrestrial target be better than 1/2 (if system space resolution is 5 rads, then the measuring accuracy of system is better than 2.5 rads) of system space resolution.Its comfort level and levels of precision can both satisfy the needs in fields such as modern scientific research, military affairs.
The scheme of finishing the foregoing invention task is: the precision measuring system of extraterrestrial target, comprise following each several part: the optical imagery subsystem, the image acquisition subsystem, the gps time subsystem, the servocontrol subsystem, it is characterized in that, also be provided with the astronomical fixation subsystem, this astronomical fixation subsystem comprises image processor, fixed star retrieval and adaptation, and detent mechanism, the output of described image acquisition subsystem and gps time subsystem connects fixed star retrieval and adaptation, the output of image processor connects fixed star retrieval and adaptation simultaneously, and the output of fixed star retrieval and adaptation connects detent mechanism.
More optimize and more particularly: the composition of native system each several part comprises:
Described optical imagery subsystem comprises traditional optical lens and detector C CD, and CCD is installed on the focal plane of optical lens, and the image acquisition subsystem comprises image pick-up card; This image acquisition clamping detector C CD; The output of detector C CD connects control computer, and servo-control system comprises the driving circuit of the code-disc, drive motor and the motor that are installed on the telescope; The output of control computer connects the described driving circuit of motor; The gps time subsystem comprises GPS receiver and Data Input Interface card; Its output connects control computer; The output of the detent mechanism in the astronomical fixation subsystem connects display system, connects the storage medium of main control computer simultaneously.Image processor wherein, fixed star retrieval and adaptation and detent mechanism all adopt software engineering to be arranged among the CPU of computing machine, can adopt the prior art in the astronomical observation instrument.
It is the positioning software subsystem that the present invention substitutes original axle with the astronomical fixation subsystem, the astronomical fixation subsystem comprises image processor, wherein be provided with image processing software: image processing software is handled the image of input, obtain the gray scale centroid position of target on image, the gray scale centroid position of background fixed star; Be provided with fixed star retrieval and adapting software in fixed star retrieval and the adaptation; Be provided with positioning software in the detent mechanism.Fixed star retrieval and adapting software are surveyed the coupling of star chart and theoretical star chart according to the positional information of background fixed star on gps time and the position of telescope information retrieval image, and positioning software is according to the locus of the real-time reduction target of above-mentioned result.Result of calculation shows by display system; Or store in the storage medium of main control computer.
Use above-mentioned positioning system to carry out the method for purpose location, space, comprise following job step:
The image acquisition subsystem is according to the certain frequency collection extraterrestrial target and the image of background fixed star;
The servocontrol subsystem provides code wheel reading according to certain frequency to computing machine;
The gps time subsystem provides temporal information according to certain frequency to computing machine;
The astronomical fixation software systems provide the accurate positioning result of extraterrestrial target according to above-mentioned three input data.
Aforementioned calculation result can show by display system.Here said " optical imaging system " comprises optical system and charge coupled device ccd, and the spatial resolution of each pixel correspondence is relevant on the bearing accuracy of space-target real-time astronomical positioning method and the image of CCD.
The invention provides a kind of precision measuring system of brand-new extraterrestrial target, native system can not be subjected to telescope horizontalization and north and south error in pointing, center, CCD visual field and optical axis center deviation, code-disc alignment error, CCD picture dot equivalent to be forbidden the error that causes, the influence that atmospheric refraction corrects the incorrect error that causes of data of the not strict sum of errors survey station coordinate that causes.Measurement result is under the mean equator, mean equinox coordinate in celestial coordinate system (J2000.0), flat right ascension peace declination, and for each survey station, the different time of observation all belongs to a highly stable coordinate system; Locating accuracy is not subjected to telescope axial system error and atmospheric refraction to correct the influence of error, has good stability, the high advantage of precision.Its comfort level and levels of precision can both satisfy the needs in fields such as modern scientific research, military affairs.
Description of drawings
Fig. 1 is combined into the synoptic diagram of present device system for each device.
Embodiment
Embodiment 1, with reference to Fig. 1: the precision measuring system of extraterrestrial target, comprise following each several part: the optical imagery subsystem, the image acquisition subsystem, the gps time subsystem, the servocontrol subsystem, it is characterized in that, also be provided with the astronomical fixation subsystem, this astronomical fixation subsystem comprises image processor, fixed star retrieval and adaptation, and detent mechanism, the output of described image acquisition subsystem and gps time subsystem connects fixed star retrieval and adaptation, the output of image processor connects fixed star retrieval and adaptation simultaneously, and the output of fixed star retrieval and adaptation connects detent mechanism.The optical imagery subsystem comprises traditional optical lens and detector C CD, CCD is installed on the focal plane of optical lens, the light of collecting is accumulated on the target surface of CCD, and CCD is an electronics with the photon conversion that receives, by the gray level image of mould/number conversion for measuring and handle.The image acquisition subsystem mainly comprises image pick-up card, and control CCD gathers the frequency collection gray level image of 5 two field pictures according to per second, and the image of gathering is input in the control computer.Servo-control system mainly comprises the driving circuit of the code-disc, drive stepping motor and the motor that are installed on the telescope, provides position of telescope information according to the rule control telescope precision tracking target of target travel with according to certain frequency to control computer.The gps time subsystem comprises the GPS receiver, the Data Input Interface card; His function is to provide the Coordinated Universal Time(UTC) according to 500 hertz frequency to control computer.Be provided with image processing software in the image processor in the astronomical fixation subsystem: image processing software is handled the image of input, obtains the gray scale centroid position of target on image, the gray scale centroid position of background fixed star; Be provided with fixed star retrieval and adapting software in fixed star retrieval and the adaptation; Be provided with positioning software in the detent mechanism, the output of detent mechanism connects display system, connects the storage medium of main control computer simultaneously.Fixed star retrieval and adapting software are surveyed the coupling of star chart and theoretical star chart according to the positional information of background fixed star on gps time and the position of telescope information retrieval image, and positioning software is according to the locus of the real-time reduction target of above-mentioned result.Result of calculation shows by display system.
Claims (2)
1, a kind of precision measuring system of extraterrestrial target, comprise following each several part: optical imagery subsystem, image acquisition subsystem, gps time subsystem, servocontrol subsystem, it is characterized in that, also be provided with the astronomical fixation subsystem, this astronomical fixation subsystem comprises image processor, fixed star retrieval and adaptation, and detent mechanism, the output of described image acquisition subsystem and gps time subsystem connects fixed star retrieval and adaptation, the output of image processor connects fixed star retrieval and adaptation simultaneously, and the output of fixed star retrieval and adaptation connects detent mechanism.
2, according to the precision measuring system of the described extraterrestrial target of claim 1, it is characterized in that, described optical imagery subsystem comprises traditional optical lens and detector C CD, and CCD is installed on the focal plane of optical lens, and the image acquisition subsystem comprises image pick-up card; This image acquisition clamping detector C CD; The output of detector C CD connects control computer, and servo-control system comprises the driving circuit of the code-disc, drive motor and the motor that are installed on the telescope; The output of control computer connects the described driving circuit of motor; The gps time subsystem comprises GPS receiver and Data Input Interface card; Its output connects control computer; The output of the detent mechanism in the astronomical fixation subsystem connects display system, connects the storage medium of main control computer simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510040607 CN1693846A (en) | 2005-06-20 | 2005-06-20 | Precision measuring system for space target |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510040607 CN1693846A (en) | 2005-06-20 | 2005-06-20 | Precision measuring system for space target |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1693846A true CN1693846A (en) | 2005-11-09 |
Family
ID=35352920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510040607 Pending CN1693846A (en) | 2005-06-20 | 2005-06-20 | Precision measuring system for space target |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1693846A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100454079C (en) * | 2007-02-09 | 2009-01-21 | 南京中科天文仪器有限公司 | Astronomical telescope video CCD automatic guiding method |
| CN101846511A (en) * | 2010-04-29 | 2010-09-29 | 中国科学院紫金山天文台 | Detection system of space debris |
| US7890302B2 (en) | 2008-03-13 | 2011-02-15 | Health Hero Network, Inc. | Distributed imaging array system |
| CN102426012A (en) * | 2011-11-18 | 2012-04-25 | 中国科学院紫金山天文台 | Photoelectric fencing system for sky observation |
| CN102494872A (en) * | 2011-11-15 | 2012-06-13 | 中国科学院紫金山天文台 | Method for measuring pointing error of astronomical telescope in real time |
| CN102981262A (en) * | 2012-11-20 | 2013-03-20 | 中国科学院紫金山天文台 | Large-diameter transmission-type telescope system |
| CN103713644A (en) * | 2013-12-11 | 2014-04-09 | 中国科学院长春光学精密机械与物理研究所 | Space target dynamic display and position guide system |
| CN103837160A (en) * | 2014-03-04 | 2014-06-04 | 中国科学院光电技术研究所 | Star-matching-based electro-optic theodolite parameter optimization method |
| CN103900538A (en) * | 2014-04-14 | 2014-07-02 | 中国科学院国家天文台 | Method for accurately measuring position of fixed star by astrometry telescope through CCD (Charge Coupled Device) detector |
| CN107202551A (en) * | 2017-06-19 | 2017-09-26 | 合肥斯科尔智能科技有限公司 | A kind of 3D printer printer model precision detection system |
| CN109932974A (en) * | 2019-04-03 | 2019-06-25 | 中国科学院国家天文台长春人造卫星观测站 | The embedded observation-well network of accurate measurement type extraterrestrial target telescope |
| CN112033350A (en) * | 2020-07-14 | 2020-12-04 | 中国人民解放军63623部队 | Spatial target angle measurement method based on image pixel level calibration |
-
2005
- 2005-06-20 CN CN 200510040607 patent/CN1693846A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100454079C (en) * | 2007-02-09 | 2009-01-21 | 南京中科天文仪器有限公司 | Astronomical telescope video CCD automatic guiding method |
| US7890302B2 (en) | 2008-03-13 | 2011-02-15 | Health Hero Network, Inc. | Distributed imaging array system |
| CN101846511A (en) * | 2010-04-29 | 2010-09-29 | 中国科学院紫金山天文台 | Detection system of space debris |
| CN102494872A (en) * | 2011-11-15 | 2012-06-13 | 中国科学院紫金山天文台 | Method for measuring pointing error of astronomical telescope in real time |
| CN102426012A (en) * | 2011-11-18 | 2012-04-25 | 中国科学院紫金山天文台 | Photoelectric fencing system for sky observation |
| CN102981262A (en) * | 2012-11-20 | 2013-03-20 | 中国科学院紫金山天文台 | Large-diameter transmission-type telescope system |
| CN103713644A (en) * | 2013-12-11 | 2014-04-09 | 中国科学院长春光学精密机械与物理研究所 | Space target dynamic display and position guide system |
| CN103837160A (en) * | 2014-03-04 | 2014-06-04 | 中国科学院光电技术研究所 | Star-matching-based electro-optic theodolite parameter optimization method |
| CN103837160B (en) * | 2014-03-04 | 2016-08-17 | 中国科学院光电技术研究所 | Electro-optic theodolite optimized parameter method based on fixed star coupling |
| CN103900538A (en) * | 2014-04-14 | 2014-07-02 | 中国科学院国家天文台 | Method for accurately measuring position of fixed star by astrometry telescope through CCD (Charge Coupled Device) detector |
| CN103900538B (en) * | 2014-04-14 | 2017-03-01 | 中国科学院国家天文台 | The method that ccd detector is used for Astrometric Telescope accurate measurement star place |
| CN107202551A (en) * | 2017-06-19 | 2017-09-26 | 合肥斯科尔智能科技有限公司 | A kind of 3D printer printer model precision detection system |
| CN109932974A (en) * | 2019-04-03 | 2019-06-25 | 中国科学院国家天文台长春人造卫星观测站 | The embedded observation-well network of accurate measurement type extraterrestrial target telescope |
| CN109932974B (en) * | 2019-04-03 | 2021-09-24 | 中国科学院国家天文台长春人造卫星观测站 | Embedded observation control system of precision measurement type space target telescope |
| CN112033350A (en) * | 2020-07-14 | 2020-12-04 | 中国人民解放军63623部队 | Spatial target angle measurement method based on image pixel level calibration |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1693846A (en) | Precision measuring system for space target | |
| CN1332176C (en) | Space-target real-time astronomical positioning method | |
| CN107449444B (en) | Multi-star map attitude associated star sensor internal parameter calibration method | |
| CN111156988B (en) | Space debris astronomical positioning and photometry method based on automatic pointing error determination | |
| CN112591148B (en) | Method and system for evaluating attitude stability by utilizing on-orbit star light sensation | |
| CN113063435B (en) | Satellite attitude stability and pointing accuracy assessment method and system | |
| CN1877257A (en) | Single axis fiber gyro north seeker | |
| CN1052371A (en) | Gyroscope north searching instrument | |
| US7382448B1 (en) | Alignment system for observation instruments | |
| CN111765880B (en) | High-precision four-position north-seeking method based on single fiber gyroscope | |
| CN111156989A (en) | Space debris real-time astronomical positioning method based on automatic pointing determination | |
| RU141801U1 (en) | ASTROINERCIAL NAVIGATION SYSTEM | |
| CN111238531B (en) | Astronomical calibration controller IP core and calibration method thereof | |
| Paar et al. | Technological development and application of photo and video theodolites | |
| CN113091732B (en) | Fixed star capturing method and system for satellite performance index on-orbit evaluation | |
| CN111123914A (en) | Vision scene-based direction estimation method for mowing robot | |
| CN109141368B (en) | High-positioning-precision satellite-borne imaging system and method | |
| CN100498246C (en) | Machine-carried broom pushing type multidimension imaging device | |
| CN111895968B (en) | High-precision composite horizontal angle measuring system | |
| CN1124470C (en) | Precise azimuth measuring method | |
| CN1139785C (en) | Precise azimuth measuring system | |
| CN111141282B (en) | Positioning aiming control method and device based on Loongson processor aiming computer | |
| CN1255666C (en) | Measuring system for space object status and position | |
| CN113759384B (en) | Method, device, equipment and medium for determining pose conversion relation of sensor | |
| KR102618579B1 (en) | Method and system for patrolling Wide-field |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |