CN104181571A - Method for rapidly measuring precision coordinate and elevation of ground point in area with weak CORS signals or without CORS signals - Google Patents
Method for rapidly measuring precision coordinate and elevation of ground point in area with weak CORS signals or without CORS signals Download PDFInfo
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- CN104181571A CN104181571A CN201310217039.4A CN201310217039A CN104181571A CN 104181571 A CN104181571 A CN 104181571A CN 201310217039 A CN201310217039 A CN 201310217039A CN 104181571 A CN104181571 A CN 104181571A
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- cors
- coordinate
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- precision
- elevation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/45—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
Abstract
The invention discloses a method for rapidly measuring the precision coordinate and the elevation of a ground point in an area with weak CORS signals or without CORS signals and belongs to the field of geodetic surveying. In the area with weak CORS signals or without CORS signals, the effectiveness, the stability, and the precision of CORS technology cannot satisfy the requirement of actual production. Accordingly, the invention provides the method for rapidly measuring the precision coordinate and the elevation of a ground point in an area with weak CORS signals or without CORS signals. The method comprises: acquiring the coordinate, in an ITRF framework, of a ground point at an average observation epoch moment by means of a method combining static measurement with dynamic measurement; acquiring a precise national CGCS2000 coordinate by using datum transformation; acquiring a full-frequency-domain quasigeoid model with a certain resolution by using data of earth gravitational field models with different precisions and resolutions, digital terrain models, and a certain amount of optimized GNSS/ benchmark so as to achieve elevation transformation and the normal height of the ground point. The method has characteristics of fast speed, high precision, and good stability, and has a high application value.
Description
Technical field
The present invention relates to a kind ofly realize weakly or without the method for the topocentric precision coordinate in CORS signaling zone and elevation Quick Measurement, belong to geodetic surveying field.
Background technology
GLONASS (Global Navigation Satellite System) (GNSS), as the revolutionary development result of new century surveying and mapping technology, makes surveying and mapping technology produce earth-shaking variation.According to different data processing methods, GNSS measurement is divided into static measurement and kinetic measurement.The precision of static measurement is high, but it has long, consuming time many, the shortcoming such as expense is large of data processing time, and therefore static measurement is usually for high-precision each grade control survey.Kinetic measurement mainly contains two kinds of methods: 1, employing arranges the method for base station, carry out dynamic real-time difference by the carrier phase of base station and rover station and obtain topocentric coordinates, referred to as GNSS-RTK, the method is applied to small size region, its precision is high, measuring speed fast, can obtain in real time WGS-84 coordinate a little, can meet general engine request; 2, adopt the operation dynamic Real-time Obtaining topocentric coordinates of frame of reference and geodetic height continuously, referred to as CORS, the method is applied to larger area region, it without base station is set, measuring speed is fast, precision is high, can obtain in real time WGS-84 coordinate a little, is one of conventional mapping means of current engineering survey.These two kinds of methods are directly measured coordinate and are WGS-84 coordinate, elevation is geodetic height, cannot be directly for engineering survey be used, all need to carry out coordinate and elevation conversion, and weak or without CORS signaling zone, the precision and stability that CORS measures all cannot meet the needs of actual production, for this situation, it is weak or without the Quick Measurement of the topocentric coordinate in CORS signaling zone and elevation that the present invention utilizes conventional GNSS-RTK technology, static precision point location technology, CGCS2000 coordinate conversion technology, multi-source gravity field data to determine that Regional Quasi-Geoid based technology realizes.
Summary of the invention
The technical problem to be solved in the present invention is the defect that overcomes prior art, provide a kind of realize weak or without the method for the topocentric precision coordinate in CORS signaling zone and elevation Quick Measurement.
The method is to be achieved through the following technical solutions: a kind ofly realize weakly or without the method for the topocentric precision coordinate in CORS signaling zone and elevation Quick Measurement, comprise the following steps:
(a) weak or without CORS signal area, use conventional GNSS-RTK technology to measure, obtain in real time the relative position of rover station with respect to base station, record the observation data of base station simultaneously, require base station observation time to be greater than 2h.
(b) utilize GNSS Precise Orbit data and accurate clock correction data, the observation data of base station is carried out to the aftertreatment of static precision single-point location, the three dimensions rectangular coordinate under the base station ITRF framework in acquisition average observed moment epoch.
(c) near selection reference station the three dimensions rectangular coordinate under the ITRF framework at least 3 IGS tracking station average observed moment epoch and 2000.0 epoch ITRF97 framework three dimensions rectangular coordinate, by the three dimensions rectangular coordinate under base station ITRF framework be converted to 2000.0 epoch ITRF97 framework three dimensions rectangular coordinate, obtained base station CGCS2000 coordinate.
(d) utilize the relative coordinate between the CGCS2000 coordinate of base station and rover station and the base station of the acquisition of employing GNSS-RTK technology, obtain rover station CGCS2000 coordinate.
(e) utilize the SRTM digital terrain model of 3 second of arcs of EGM2008 Ultra-High Order gravity field model, pure Satellite gravity field model, measured zone, the gravity quasi-geoid model that 30 second of arc DTM2006.0 whole world digital terrain models are combined the 30 second of arc resolution of determining measured zone, then adopt the optimization system of selection of progressively rejecting to select a certain amount of GNSS/ leveling point to refine to gravity quasi-geoid model, determine the final quasigeoid model of surveying district, the geodetic height of base station and rover station is converted to China normally high.
(f) can obtain fast the topocentric planimetric coordinates of measured zone and elevation by above method.
Described weak or refer to that current CORS signal is very weak or there is no CORS signal at all without CORS signaling zone, cannot carry out the region of effectively measuring.
Described elevation method for fast measuring refers to and is utilizing Satellite gravity, ground gravity and satellite to survey the gravity quasi-geoid model of the full frequency-domain of the different accuracy of high multi-source gravimetric data acquisition and the data acquisition such as earth gravity field model, the digital terrain model survey district certain resolution of resolution, then select a certain amount of GNSS/ leveling data by successive sweep, utilize these data to be optimized gravity quasi-geoid model, and then each topocentric geodetic height is converted to normal height, realize and utilize the quick measurement of higher degree of GNSS technology.
Described base station, rover station is multifrequency many (list) star GNSS receiver.
Described ITRF is International Terrestrial Reference Frame, comprises ITRF2000, ITRF2005, ITRF2008 etc.
Described accurate one-point positioning method is to adopt GNSS precise ephemeris and accurate clock correction data, utilizes pseudorange, the carrier phase of base station observation to carry out static precision single-point location.
Three dimensions rectangular coordinate under the epoch of observation that the conversion of described benchmark refers near the IGS tracking station utilizing base station three dimensions rectangular coordinate under ITRF framework and 2000.0 epoch ITRF97 frameworks, three dimensions rectangular coordinate under the ITRF framework in average observed moment epoch of base station is converted to the three dimensions rectangular coordinate under 2000.0 epoch ITRF97 frameworks, i.e. CGCS2000 coordinate.
Described precision coordinate refers to topocentric CGCS2000 coordinate, and its precision is not less than 5cm, can meet the requirement of conventional all kinds of engineer's scale plotting accuracy.
Compared with prior art, the present invention has advantages of following:
(1) overcome weak/cannot utilize CORS technology to carry out the defect of effectively measuring without CORS signaling zone.
(2) by the data acquisition base station CGCS2000 coordinate of static precision location technology and IGS tracking station, and then the method combining by GNSS Static and dynamic measurement pattern, realize the Quick Measurement of arbitrfary point, ground CGCS2000 coordinate.Overcome traditional GNSS-RTK measuring basis station coordinates precision not high, the indefinite drawback of benchmark.
(3) by utilizing the relevant data such as up-to-date high-precision earth gravity field model, digital terrain model of International Publication, first determine and survey district's gravity quasi-geoid model, then adopt successive sweep to select a certain amount of GNSS/ leveling data to refine to gravity quasi-geoid model, determine the final quasigeoid model of surveying district, and each ground point geodetic height is converted to normal height.This technology only needs a small amount of GNSS/ leveling data, and need not ground gravity etc. data, cost is low, precision is higher.
Brief description of the drawings
Fig. 1 is ground point precision coordinate calculation process.
Fig. 2 is the normal high calculation process of ground point.
Embodiment
In measured zone, if weak or without CORS signal, cannot use CORS technology to carry out relevant surveying work; If use GNSS static measurement, need to expend more time, man power and material; If use conventional Geodetic surveying method, time that need to be longer, more man power and material.Based on this, 2 innovations of the present invention are: 1, utilize GNSS technology to adopt quiet kinetic measurement associated methods to realize the precision coordinate of the point of clear and definite benchmark definite (Fig. 1).2, integrated multiple model data, adopts and optimizes the definite final quasigeoid model of surveying district of selection method, obtains the normal height (Fig. 2) of each point.
Below in conjunction with accompanying drawing, the invention will be further described:
Embodiment 1:
(a) use conventional GNSS-RTK technology, first base station is set, adopt common one-point positioning method to obtain base station coordinate, then start the measurement that RTK measurement pattern is correlated with, obtain in real time the relative position of rover station with respect to base station, record the observation data of base station simultaneously, require base station observation time to be greater than 2h.
(b) utilize GNSS Precise Orbit data and accurate clock correction data, the observation data of base station is carried out to the aftertreatment of static precision single-point location, the three dimensions rectangular coordinate under the base station ITRF framework in acquisition average observed moment epoch.
(c) near selection reference station the three dimensions rectangular coordinate under the ITRF framework at least 3 IGS tracking station average observed moment epoch and 2000.0 epoch ITRF97 framework three dimensions rectangular coordinate, by the three dimensions rectangular coordinate under base station ITRF framework be converted to 2000.0 epoch ITRF97 framework three dimensions rectangular coordinate, obtained base station CGCS2000 coordinate.
(d) utilize the relative coordinate between the CGCS2000 coordinate of base station and rover station and the base station of the acquisition of employing GNSS-RTK technology, obtain the CGCS2000 coordinate of each rover station.
(e) utilize the SRTM digital terrain model of 3 second of arcs of EGM2008 Ultra-High Order gravity field model, pure Satellite gravity field model, measured zone, the gravity quasi-geoid model that 30 second of arc DTM2006.0 whole world digital terrain models are combined the 30 second of arc resolution of determining measured zone, then select a certain amount of GNSS/ leveling point to adopt the optimization system of selection of progressively rejecting to refine to gravity quasi-geoid model, determine the final quasigeoid model of surveying district, the geodetic height of base station and each rover station is converted to China normally high.
(f) obtain the topocentric planimetric coordinates of measured zone and elevation.
Claims (8)
1. realize weakly or without the method for the topocentric precision coordinate in CORS signaling zone and elevation Quick Measurement, comprise the following steps:
(a) weak/without CORS signal area, use conventional GNSS-RTK technology to measure, obtain in real time the relative position of rover station with respect to base station, record the observation data of base station simultaneously, require base station observation time to be greater than 2h.
(b) utilize GNSS Precise Orbit data and accurate clock correction data, the observation data of base station is carried out to the aftertreatment of static precision single-point location, the three dimensions rectangular coordinate under the base station ITRF framework in acquisition average observed moment epoch.
(c) near selection reference station the three dimensions rectangular coordinate under the ITRF framework at least 3 IGS tracking station average observed moment epoch and 2000.0 epoch ITRF97 framework three dimensions rectangular coordinate, by the three dimensions rectangular coordinate under base station ITRF framework be converted to 2000.0 epoch ITRF97 framework three dimensions rectangular coordinate, obtained base station CGCS2000 coordinate.
(d) utilize the relative coordinate between the CGCS2000 coordinate of base station and rover station and the base station of the acquisition of employing GNSS-RTK technology, obtain rover station CGCS2000 coordinate.
(e) utilize the SRTM digital terrain model of 3 second of arcs of EGM2008 Ultra-High Order gravity field model, pure Satellite gravity field model, measured zone, the gravity quasi-geoid model that 30 second of arc DTM2006.0 whole world digital terrain models are combined the 30 second of arc resolution of determining measured zone, then select a certain amount of GNSS/ leveling point to adopt the optimization system of selection of progressively rejecting to refine to gravity quasi-geoid model, determine the final quasigeoid model of surveying district, the geodetic height of base station and rover station is converted to China normally high.
(f) can obtain fast the topocentric planimetric coordinates of measured zone and elevation by above method.
2. according to a little less than the realization described in the requirement of right 1 or without the method for the topocentric precision coordinate in CORS signaling zone and elevation Quick Measurement, it can be applicable to without ground control point or cannot effectively use CORS method to carry out the region of surveying work.
3. according to a little less than the realization described in the requirement of right 1 or without the method for the topocentric precision coordinate in CORS signaling zone and elevation Quick Measurement, elevation method for fast measuring described in it is characterized in that refers to and is utilizing Satellite gravity, ground gravity and satellite are surveyed the different accuracy of high multi-source gravimetric data acquisition and the earth gravity field model of resolution, the data acquisitions such as digital terrain model are surveyed the gravity quasi-geoid model of the full frequency-domain of district's certain resolution, then select a certain amount of GNSS/ leveling data by successive sweep, utilize these data to be optimized gravity quasi-geoid model, and then each topocentric geodetic height is converted to normal height, realization utilizes the quick measurement of higher degree of GNSS technology.
4. according to a little less than the realization described in the requirement of right 1 or without the method for the topocentric precision coordinate in CORS signaling zone and elevation Quick Measurement, it is characterized in that described precision coordinate refers to topocentric CGCS2000 coordinate, its precision is not less than 5cm, can meet the requirement of conventional all kinds of engineer's scale plotting accuracy.
5. according to a little less than the realization described in the requirement of right 1 or without the method for the topocentric precision coordinate in CORS signaling zone and elevation Quick Measurement, it is characterized in that described base station, rover station are multifrequency many (list) star GNSS receivers.
6. according to a little less than the realization described in the requirement of right 1 or without the method for the topocentric precision coordinate in CORS signaling zone and elevation Quick Measurement, it is characterized in that described ITRF is International Terrestrial Reference Frame, comprise ITRF2000, ITRF2005, ITRF2008 etc.
7. according to a little less than the realization described in the requirement of right 1 or without the method for the topocentric precision coordinate in CORS signaling zone and elevation Quick Measurement, it is characterized in that described accurate one-point positioning method is to adopt GNSS precise ephemeris and accurate clock correction data, utilize pseudorange, the carrier phase of base station observation to carry out static precision single-point location.
8. according to a little less than the realization described in the requirement of right 1 or without the method for the topocentric precision coordinate in CORS signaling zone and elevation Quick Measurement, it is characterized in that epoch of observation that described benchmark conversion refers near the IGS tracking station utilizing base station three dimensions rectangular coordinate under ITRF framework and 2000.0 epoch ITRF97 frameworks under three dimensions rectangular coordinate, three dimensions rectangular coordinate under the ITRF framework in average observed moment epoch of base station is converted to the three dimensions rectangular coordinate under 2000.0 epoch ITRF97 frameworks, i.e. CGCS2000 coordinate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310217039.4A CN104181571A (en) | 2013-05-26 | 2013-05-26 | Method for rapidly measuring precision coordinate and elevation of ground point in area with weak CORS signals or without CORS signals |
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| CN201310217039.4A CN104181571A (en) | 2013-05-26 | 2013-05-26 | Method for rapidly measuring precision coordinate and elevation of ground point in area with weak CORS signals or without CORS signals |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864900A (en) * | 2015-04-09 | 2015-08-26 | 中宇嘉华（北京）科技有限公司 | Mobile azimuth mark positioning device and method |
| CN105091850A (en) * | 2015-01-27 | 2015-11-25 | 国家测绘地理信息局大地测量数据处理中心 | Novel geodetic datum networking method |
| CN106772446A (en) * | 2016-12-12 | 2017-05-31 | 武汉大学 | The quantization method that higher order term ionosphere delay influences on gps coordinate time series |
| CN111257956A (en) * | 2020-04-02 | 2020-06-09 | 吉林省水利水电勘测设计研究院 | Matlab-based regional quasi-geoid surface refinement method |
| CN114046774A (en) * | 2022-01-05 | 2022-02-15 | 中国测绘科学研究院 | Ground deformation continuous monitoring method integrating CORS network and multi-source data |
-
2013
- 2013-05-26 CN CN201310217039.4A patent/CN104181571A/en active Pending
Non-Patent Citations (5)
| Title |
|---|
| 侯国力等: "ITRF2000框架坐标转换到ITRF1997框架下的研究与应用", 《北京测绘》 * |
| 张兴福等: "一种有效的GPS RTK高程测量方法", 《测绘通报》 * |
| 张兴福等: "基于EGM2008重力场模型的GPS高程转换方法及精度分析", 《地球物理学进展》 * |
| 张兴福等: "多类重力场模型的精度分析及联合确定GPS点正常高的方法", 《测绘学报》 * |
| 张兴福等: "综合EGM2008模型和SRTM/DTM2006.0剩余地形模型的GPS高程转换方法", 《测绘学报》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091850A (en) * | 2015-01-27 | 2015-11-25 | 国家测绘地理信息局大地测量数据处理中心 | Novel geodetic datum networking method |
| CN105091850B (en) * | 2015-01-27 | 2018-05-04 | 国家测绘地理信息局大地测量数据处理中心 | New geodetic datum networking method |
| CN104864900A (en) * | 2015-04-09 | 2015-08-26 | 中宇嘉华（北京）科技有限公司 | Mobile azimuth mark positioning device and method |
| CN106772446A (en) * | 2016-12-12 | 2017-05-31 | 武汉大学 | The quantization method that higher order term ionosphere delay influences on gps coordinate time series |
| CN106772446B (en) * | 2016-12-12 | 2019-01-18 | 武汉大学 | The quantization method that higher order term ionosphere delay influences GPS coordinate time series |
| CN111257956A (en) * | 2020-04-02 | 2020-06-09 | 吉林省水利水电勘测设计研究院 | Matlab-based regional quasi-geoid surface refinement method |
| CN114046774A (en) * | 2022-01-05 | 2022-02-15 | 中国测绘科学研究院 | Ground deformation continuous monitoring method integrating CORS network and multi-source data |
| CN114046774B (en) * | 2022-01-05 | 2022-04-08 | 中国测绘科学研究院 | Ground deformation continuous monitoring method integrating CORS network and multi-source data |
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