WO2006046305A1 - 衛星を用いた相対計測方法および相対計測システム - Google Patents
衛星を用いた相対計測方法および相対計測システム Download PDFInfo
- Publication number
- WO2006046305A1 WO2006046305A1 PCT/JP2004/016148 JP2004016148W WO2006046305A1 WO 2006046305 A1 WO2006046305 A1 WO 2006046305A1 JP 2004016148 W JP2004016148 W JP 2004016148W WO 2006046305 A1 WO2006046305 A1 WO 2006046305A1
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- WO
- WIPO (PCT)
- Prior art keywords
- relative
- station
- displacement amount
- relative displacement
- mobile station
- Prior art date
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Classifications
-
- 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
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/0284—Relative positioning
- G01S5/0289—Relative positioning of multiple transceivers, e.g. in ad hoc networks
-
- 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
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
- G01S19/04—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing carrier phase data
-
- 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
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/14—Receivers specially adapted for specific applications
-
- 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
- G01S19/51—Relative positioning
Definitions
- the present invention relates to a relative measurement method and a relative measurement system that uses a plurality of satellite force radio waves and detects displacement by relative measurement.
- a mobile station As a satellite positioning technology that receives and analyzes radio waves from multiple satellite powers and detects the position of the receiver (hereinafter referred to as a mobile station!), The positioning error is large but the mobile station alone There are two types: a single positioning method and a relative positioning method in which the position of the mobile station is obtained with high accuracy using the correction data of the reference station force whose position is known.
- the positioning accuracy is limited by the linear distance between the receivers, that is, the so-called baseline length.
- the satellite orbit information uncertainty, the error due to the ionosphere and the atmosphere For example, the baseline length is limited to about 100 km or less, and errors can be offset within this range, so it can be expected that the positioning accuracy of the relative positioning method will be improved.
- the limit of the base line length is as short as about 10km or less, but since the carrier phase that is sufficiently shorter than the CZA code is used, Positioning accuracy is greatly improved [for example, see the revised GPS-satellite precise positioning system-(published by Japan Surveying Association)].
- the relative positioning method and the relative measurement method described above are V, and the deviation is also from the reference station.
- the relative positioning or relative measurement cannot be used regardless of whether the mobile station is on land, sea, or air. Therefore, the position or displacement could not be measured with high accuracy.
- the present invention provides a relative measurement method and phase using a satellite that can use relative measurement even for a mobile station that is outside the range of the baseline length in which relative measurement is possible.
- the purpose is to provide an anti-measurement system.
- the relative measurement method using the satellite of the present invention comprises a relative measurement network that receives radio waves from a satellite at a reference station and a plurality of mobile stations and performs relative measurement between predetermined stations, A measurement method for measuring a reference relative displacement amount, which is a relative displacement amount of each mobile station viewed from a reference station,
- At least one of the above mobile stations is arranged so as to exceed the base line limit length that can be measured relative to the reference station, and the distance between the predetermined mobile stations should be less than or equal to the base line limit length that can be measured relative to each other.
- a reference relative displacement amount calculating step for calculating a reference relative displacement amount between the reference station and a predetermined mobile station
- a mobile station relative displacement amount calculating step for calculating a mobile station relative displacement amount which is a relative displacement amount between the predetermined stations
- the relative measurement system of the present invention configures a relative measurement network that receives radio waves from a satellite at a reference station and a plurality of mobile stations and performs relative measurement between predetermined stations.
- At least one of the above mobile stations is arranged so as to exceed the base line limit length that can be measured relative to the reference station, and the distance between the predetermined mobile stations should be less than or equal to the base line limit length that can be measured relative to each other.
- Each station is provided with a satellite measurement device that receives radio waves of satellite power, and each station is provided with a wireless communication device that transmits and receives data to and from a predetermined station.
- Relative displacement amount calculation unit for calculating the relative displacement amount between the predetermined stations, and a reference relative for obtaining the reference relative displacement amount of the other mobile station based on the reference relative displacement amount of one station performing relative measurement.
- a displacement amount calculation unit is provided.
- the reference relative displacement amount calculation unit in the relative measurement system is arranged at the reference station, and the reference relative displacement amount of the mobile station is sequentially obtained.
- each mobile station in the relative measurement system is provided with a reference relative displacement amount calculation unit for calculating a reference relative displacement amount.
- the relative measurement in the relative measurement system is performed using the carrier phase.
- a network is formed in which mobile stations are sequentially arranged to perform relative measurement in a chained manner so that the reference local force is equal to or shorter than the baseline limit length that allows relative measurement at predetermined intervals.
- the relative displacement between these stations is calculated, and the reference relative displacement of each mobile station is calculated using the reference relative displacement, which is the amount of displacement seen from the reference station of the mobile station that performed relative displacement with the reference station.
- FIG. 1 is a perspective view showing a schematic overall configuration of a relative measurement system according to an embodiment of the present invention.
- FIG. 2 is a block diagram showing a schematic configuration of a reference station in the relative measurement system.
- FIG. 3 is a block diagram showing a schematic configuration of a mobile station in the relative measurement system.
- FIG. 4 is a block diagram showing a schematic configuration of a displacement calculation device provided in the mobile station.
- FIG. 5 is a flowchart for explaining a relative measurement method in the relative measurement system.
- FIG. 6 is a block diagram showing a schematic configuration of a displacement measuring device in the relative measurement system.
- FIG. 7 is a block diagram showing a schematic configuration of a reference station according to a modification of the relative measurement system.
- FIG. 8 is a block diagram showing a schematic configuration of a positioning arithmetic apparatus provided in a reference station according to a modification of the relative measurement system.
- radio waves and signals from a so-called GPS (Global Positioning System) satellite which is one of measurement systems using satellites, are used.
- GPS Global Positioning System
- the relative displacement amount hereinafter referred to as the “reference relative displacement amount”
- the relative measurement system includes a reference station 1 fixed on the land whose three-dimensional absolute position is known, and a sea area where the displacement of the sea surface viewed from the reference station 1 is to be detected. And a plurality of mobile stations 3 respectively provided on a plurality of floating bodies (buoys) 2 moored from the center of the reference station 1 offshore and sequentially moored at predetermined intervals.
- the relative displacement of each mobile station 3 is received using the precise fluctuation measurement method (which uses the carrier phase, which will be referred to as the KVD method hereinafter). It is equipped with a function to obtain a reference relative displacement amount in the relative measurement of the reference station and a relative displacement amount between the mobile stations.
- the one closest to the reference station 1 is the first mobile station 3A
- the next closest is the second mobile station 3B, the third mobile station 3C,.
- the farthest is called the nth mobile station 3Z.
- the stations are arranged at predetermined intervals.
- the reference station 1 and the first mobile station 3A, the first mobile station 3A and the second mobile station 3B, the second mobile station 3B and the third mobile station are arranged.
- Mobile station 3C The distance between the n-1st mobile station 3Y and the nth mobile station 3Z is less than the baseline length that can be measured by the KVD method (hereinafter referred to as the baseline limit length, eg, 10km)
- the baseline limit length eg, 10km
- the intervals between the stations may be the same length or different lengths. In short, it may be less than the baseline limit length measurable by the KVD method.
- the reference station 1 includes a GPS receiver (an example of a satellite measuring device) 11 that receives radio waves from a GPS satellite 4 via an antenna 11a and measures satellite data for measurement.
- Each mobile station 3 includes a GPS receiver (an example of a satellite measurement device) 21 that receives radio waves from a GPS satellite 4 and measures satellite data for measurement, as shown in FIG. , A wireless communication device that transmits and receives data to and from other stations 1 and 3 (consisting of transmitter 22a and receiver 22b as shown in FIG. 4) 22 and data from other stations 1 and 3 And a displacement calculation device 23 that performs relative measurement by the KVD method based on the same time data of the own station, that is, obtains the relative displacement amount of the other station with respect to one station.
- a GPS receiver an example of a satellite measurement device
- the displacement calculation device 23 includes measurement satellite data (carrier phase value, distance between satellite and receiver antenna (pseudo distance), Data storage unit 31 that stores orbit information and time data (GPS time) adopted in the satellite measurement system), and satellite data for measurement obtained by the GPS receiver 21 , And the reference station 1 or the mobile station (hereinafter also referred to as the previous station) near the reference station (upstream side) of the network (hereinafter referred to as the previous station) 3 and the reference relative displacement of the previous station are received by the receiver 22b.
- the relative displacement amount calculation unit 32 calculates the relative displacement amount with respect to the previous station using the KVD method, the relative displacement amount obtained by the relative displacement amount calculation unit 32, and the reference relative displacement of the previous station.
- a reference relative displacement amount calculation unit 33 for calculating the reference relative displacement amount of the mobile station 3 by inputting the amount, and the mobile station 3 stored in the data storage unit 31, that is, the satellite data for measurement of the own station
- a transmission data creation unit 34 for creating a transmission data for inputting the reference relative displacement obtained by the reference relative displacement calculation unit 33 and transmitting it to the next mobile station 3.
- the transmission data created by the transmission data creation unit 34 is transmitted to the next mobile station 3 via the transmitter 22a.
- the orbit information is received by the two stations that perform relative measurement. The data can be transmitted to the other side for use.
- the satellite data for measurement of the ground reference station 1 and the reference displacement amount (if it is fixed integrally with the reference station and the ground, it will be “zero” if there is no shaking). Transmit to mobile station 3A (step 1).
- the first mobile station 3 obtains the relative displacement amount seen from the reference station by the relative measurement based on the KVD method between the reference station 1 and the first mobile station 3A (step 2; Reference relative displacement calculation step).
- the reference relative displacement amount of the first mobile station 3A is obtained using the reference displacement amount of the reference station 1 (step 3).
- the reference relative displacement amount and measurement satellite data of the first mobile station 3A are transmitted to the second mobile station 3B.
- the second mobile station 3B uses the measurement satellite data to perform relative measurement by the KVD method between the first mobile station 3A and the second mobile station 3B.
- Second move as seen from 3A Find the relative displacement between the mobile stations in station 3B (Step 5: Relative displacement calculation step between mobile stations).
- step 5 the inter-mobile station relative displacement force obtained in step 5 is subtracted from the reference relative displacement amount of the first mobile station 3A to obtain the reference relative displacement amount of the second mobile station 3B (step 6; conversion (Step).
- a relative measurement network that receives radio waves from a satellite at a reference station and a plurality of mobile stations and performs relative measurement between predetermined stations. And measuring the reference relative displacement amount, which is the relative displacement amount of each mobile station as viewed from the reference station, with at least one of the above mobile stations being limited to a baseline that can be measured relative to the reference station.
- the reference relative displacement is calculated so that the reference relative displacement amount is calculated between the reference station and the predetermined mobile station.
- Relative displacement calculation step A conversion step of converting the mobile station between the relative displacement amount obtained Te based relative displacement is obtained by ingredients Bei.
- the reference station 1 is placed on land, and the mobile station 3 is placed at predetermined intervals from the reference station 1, that is, so as to be equal to or shorter than the baseline limit length that allows relative measurement by the KVD method. Since they are placed sequentially on the sea surface, the relative displacement between these stations is obtained by the KVD method, and the reference relative displacement of each mobile station relative to the reference station is obtained using this relative displacement.
- the reference relative displacement amount of the mobile station 3 that is separated from the reference station 1 by the base line limit length that can be measured relative to the base station 1 can be accurately obtained by the KVD method via the mobile station 3 arranged therebetween.
- This KVD method is a precision variation measuring method and, as described above, disclosed in Japanese published patent publication (2001-281323).
- the measurement accuracy of this method is close to that of the real-time kinematic method (hereinafter referred to as the RTK method), and its outline will be described in comparison with this RTK method.
- the RTK system uses a GPS satellite force carrier phase measurement value at a reference point where the latitude, longitude, and altitude have been clarified in advance to determine the carrier phase at the measurement target point.
- the three-dimensional coordinates of the point are obtained, and the fluctuation component is measured with the time fluctuation of these coordinate values.
- the relative vector between the reference receiver and the observation receiver placed on the object depends on the long-period fluctuation component that does not depend on the object fluctuation and the object fluctuation.
- the short-period fluctuation component is represented by each X, y, z-axis component of the unit vector that is directed from the reference receiver to the satellite, and at least three GPS satellites and each reception.
- the carrier phase with the machine is measured, and this measurement data is passed through a bandpass filter to extract a short-period phase component corresponding to the short-period fluctuation component of the relative vector.
- one of the KVD schemes is that, instead of the single difference between the receivers described above, the extracted short-period phase components are inter-receiver satellites between the receivers and the GPS satellites. Measure the displacement of the object by calculating at least three double differences between them and calculating each axis component of the short-period fluctuation component of the relative vector based on the double difference between the satellites between these at least three receivers. Is the method.
- the short-period phase is a short-period fluctuation component of the carrier phase between both receivers and the GPS satellite.
- Each axis component of the short-period fluctuation component of the relative vector is obtained by calculation based on the single difference between the receivers of the component or the double difference between the satellites of the short-cycle phase component, so the integer value ambiguity It is possible to measure the fluctuation of an object without obtaining the tee.
- the KVD method uses the kinematic method, and measures vibrations of objects in the order of several tens of hertz, specifically vibrations of building structures, vibrations of mechanical structures, or sea level fluctuations. It is possible.
- a satellite angle measurement unit 41 that receives a radio wave transmitted by GPS satellite force and measures the altitude angle ⁇ elv and azimuth angle ⁇ azm of the satellite from the data included in the navigation message, and the carrier phase (phase distance) )
- the carrier phase measurement unit 42 that measures ⁇ and the carrier phase ⁇ measured by the carrier phase measurement unit 42 are passed through a bandpass filter to extract a short-period phase component ⁇ S that is a time-varying component.
- the altitude angle ⁇ elv, azimuth angle ⁇ azm from unit 1 and the single difference between receivers ⁇ ⁇ S are input from unit 44 to create at least three equations and solve these simultaneous equations to obtain the relative vector ⁇ : Short-period fluctuation component And a short period fluctuation component calculation unit 45 for calculating ArS.
- a displacement calculation device is arranged in each mobile station.
- the reference relative displacement amount of each mobile station has been explained, but these are sent to the land station (which may also serve as the reference station) by the transmitter 22a together with the station number and managed centrally. Is done.
- a displacement calculation device is arranged at the reference station, and the measurement satellite data measured by each mobile station is transmitted to the reference station and stored, and the reference calculation of each mobile station is performed by the displacement calculation device of the reference station. Try to find the amount of displacement.
- transmission data between mobile stations in the above-described embodiment is transmitted to the reference station, and the data of each mobile station is stored in the reference station.
- Relative measurement is performed using the stored data using the same functions as the relative displacement calculation unit and reference relative displacement calculation unit of the mobile station.
- the reference station 1 is provided with a displacement calculation device 13, and the displacement calculation device 13 includes at least a signal from the GPS receiver 11 as shown in FIG.
- a data storage unit 51 for storing the measurement satellite data and the measurement satellite data received by each mobile station 3 via the receiver 12b of the wireless communication device 12, and the measurement data stored in the data storage unit 51
- a reference relative displacement amount calculation unit 52 for inputting satellite data and calculating a reference relative displacement amount of each mobile station 3 with respect to the reference station 1 is provided.
- the transmission / reception of data between the stations has been described as being performed by a wireless communication device. If you use a communication satellite to send and receive data.
- the reference station is disposed on land, but may be disposed on a floating body floating on the sea surface.
- the reference station is arranged on land and the mobile station is arranged on the sea surface to measure waves, tsunamis, etc., but for example both the reference station and the mobile station are measured. It can also be used as, for example, a seismometer by placing it on land.
- the satellite measurement by GPS is exemplified.
- the satellite measurement method satellite positioning method having the same principle can be used, or any satellite measurement method that will appear in the future.
- the relative measurement by the KVD method is performed with high accuracy. For example, by mooring a floating body equipped with a mobile station in a sea area far away from the land, it is possible to measure the tsunami offshore and predict the arrival of the tsunami and use it to reduce damage caused by the tsunami. Can do. In some cases, it can also be used as a seismometer.
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2585143A CA2585143C (en) | 2004-10-29 | 2004-10-29 | Relative measuring method and relative measuring system using satellite |
US11/666,256 US7609202B2 (en) | 2004-10-29 | 2004-10-29 | Relative measurement method and relative measurement system using satellite |
KR1020077004175A KR101067415B1 (ko) | 2004-10-29 | 2004-10-29 | 위성을 사용한 상대 계측방법 및 상대 계측 시스템 |
PCT/JP2004/016148 WO2006046305A1 (ja) | 2004-10-29 | 2004-10-29 | 衛星を用いた相対計測方法および相対計測システム |
JP2006542182A JPWO2006046305A1 (ja) | 2004-10-29 | 2004-10-29 | 衛星を用いた相対計測方法および相対計測システム |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2004/016148 WO2006046305A1 (ja) | 2004-10-29 | 2004-10-29 | 衛星を用いた相対計測方法および相対計測システム |
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WO2006046305A1 true WO2006046305A1 (ja) | 2006-05-04 |
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PCT/JP2004/016148 WO2006046305A1 (ja) | 2004-10-29 | 2004-10-29 | 衛星を用いた相対計測方法および相対計測システム |
Country Status (5)
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US (1) | US7609202B2 (ja) |
JP (1) | JPWO2006046305A1 (ja) |
KR (1) | KR101067415B1 (ja) |
CA (1) | CA2585143C (ja) |
WO (1) | WO2006046305A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013228237A (ja) * | 2012-04-25 | 2013-11-07 | Hitachi Zosen Corp | 変位観測方法および変位観測システム |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0961509A (ja) * | 1995-08-22 | 1997-03-07 | Hitachi Zosen Corp | Gps測量方法およびその装置 |
JP2002181917A (ja) * | 2000-12-13 | 2002-06-26 | Furuno Electric Co Ltd | 測量方法および測量システム |
JP2004286626A (ja) * | 2003-03-24 | 2004-10-14 | Kenichi Kawamata | Gps測位解析における仮想現実空間とドップラー効果 |
JP2004301598A (ja) * | 2003-03-31 | 2004-10-28 | Pasuko:Kk | Vrs−ts方式による測量方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3803177B2 (ja) | 1997-08-25 | 2006-08-02 | 照之 加藤 | 津波検知システム |
JP3803901B2 (ja) | 1999-12-15 | 2006-08-02 | 国立大学法人 東京大学 | 海面変位計測装置 |
JP3727219B2 (ja) | 2000-03-31 | 2005-12-14 | 日立造船株式会社 | Gpsによる物体の変位計測方法 |
JP2004144622A (ja) | 2002-10-24 | 2004-05-20 | Kokusai Kogyo Co Ltd | 斜面監視システム |
US7231295B2 (en) * | 2004-04-07 | 2007-06-12 | Deere & Company | System and method for creating accurate topographical maps using low-drift DGPS |
US7248211B2 (en) * | 2004-07-26 | 2007-07-24 | Navcom Technology Inc. | Moving reference receiver for RTK navigation |
JP4912739B2 (ja) * | 2006-05-16 | 2012-04-11 | 株式会社トプコン | Rtk−gps測量システム |
-
2004
- 2004-10-29 WO PCT/JP2004/016148 patent/WO2006046305A1/ja active Application Filing
- 2004-10-29 JP JP2006542182A patent/JPWO2006046305A1/ja active Pending
- 2004-10-29 KR KR1020077004175A patent/KR101067415B1/ko not_active IP Right Cessation
- 2004-10-29 US US11/666,256 patent/US7609202B2/en not_active Expired - Fee Related
- 2004-10-29 CA CA2585143A patent/CA2585143C/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0961509A (ja) * | 1995-08-22 | 1997-03-07 | Hitachi Zosen Corp | Gps測量方法およびその装置 |
JP2002181917A (ja) * | 2000-12-13 | 2002-06-26 | Furuno Electric Co Ltd | 測量方法および測量システム |
JP2004286626A (ja) * | 2003-03-24 | 2004-10-14 | Kenichi Kawamata | Gps測位解析における仮想現実空間とドップラー効果 |
JP2004301598A (ja) * | 2003-03-31 | 2004-10-28 | Pasuko:Kk | Vrs−ts方式による測量方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013228237A (ja) * | 2012-04-25 | 2013-11-07 | Hitachi Zosen Corp | 変位観測方法および変位観測システム |
Also Published As
Publication number | Publication date |
---|---|
CA2585143A1 (en) | 2006-05-04 |
US20070264970A1 (en) | 2007-11-15 |
KR101067415B1 (ko) | 2011-09-27 |
JPWO2006046305A1 (ja) | 2008-05-22 |
CA2585143C (en) | 2012-09-11 |
KR20070065310A (ko) | 2007-06-22 |
US7609202B2 (en) | 2009-10-27 |
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