CN104613852A - Arc-shaped guide rail positioning method and system for RCS (Radar Cross-Section) measurement - Google Patents
Arc-shaped guide rail positioning method and system for RCS (Radar Cross-Section) measurement Download PDFInfo
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Abstract
The invention provides arc-shaped guide rail positioning method and system for RCS (Radar Cross-Section) measurement, and aims at improving the positioning precision of arc-shaped guide rails. The method comprises the steps of acquiring measuring coded disc values of a north trolley and a south trolley, wherein a measuring coded disc of the measuring coded disc values are respectively connected with measuring gears of the north trolley and the south trolley; determining the angle positions of the north trolley and the south trolley on the arc-shaped guide rail according to the obtained measuring coded disc value. The system comprises an acquiring unit for acquiring the measuring coded disc values of the north trolley and the south trolley, and a determining unit for determining the angle positions of the north trolley and the south trolley on the arc-shaped guide rail according to the obtained measuring coded disc value; the measuring coded disc of the measuring coded disc values are respectively connected with the measuring gears of the north trolley and the south trolley. The method and system are applicable to the technical field of radar signal processing.
Description
Technical field
The present invention relates to Radar Signal Processing Technology field, refer to a kind of arc-shaped guide rail localization method for rcs measurement and system especially.
Background technology
Bistatic radar refers to that electromagnetic wave energy outputs to emitting antenna from radar hardware, radiate from emitting antenna again, the echo then returned from one or more object is received by receiving antenna, finally transmit back the hardware device of radar, that is, electromagnetic transmitting and receiving are in different positions.
At present, one radar scattering characteristic (radia cross section, RCS) surveying laboratory employing diameter is the ball housing of 20 meters, wherein, RCS reflects testee under given conditions to the reflection potential of incident electromagnetic wave, has installed the large scale arc-shaped guide rail that diameter is 20 meters, this arc-shaped guide rail has arc-shaped rack at this ball housing, because arc-shaped guide rail is out of shape and standard round deviation to some extent to some extent, cause the location of arc-shaped guide rail inaccurate.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of arc-shaped guide rail localization method for rcs measurement and system, causes locating coarse problem with the arc-shaped guide rail distortion solved existing for prior art.
For solving the problems of the technologies described above, the embodiment of the present invention provides a kind of arc-shaped guide rail localization method for rcs measurement, comprising:
Obtain the measurement code-disc value of northern dolly and southern dolly, wherein, be connected with the prototype gear of described northern dolly and southern dolly respectively for the measurement code-disc measuring code-disc value;
According to the described measurement code-disc value obtained, determine described northern dolly and the angle position of southern dolly on described arc-shaped guide rail.
Alternatively, the measurement code-disc value of the northern dolly of described acquisition and southern dolly comprises:
Obtain described northern dolly preset first object position up slide and down slip equal angular time measurement code-disc value;
Obtain described southern dolly preset the second target location up slide and down slip equal angular time measurement code-disc value.
Alternatively, the described described measurement code-disc value according to obtaining, determine that described northern dolly and the angle position of southern dolly on described arc-shaped guide rail comprise:
In the coordinate system at unified zero point, the described northern dolly obtained up is slided and down slip equal angular time measurement code-disc value process, determine that described northern dolly up slides and the first error information during down slip equal angular;
According to described first error information, interpolation correction is carried out to described first object position, determine revised described first object position;
In the coordinate system at unified zero point, the described southern dolly obtained up is slided and down slip equal angular time measurement code-disc value process, determine that described southern dolly up slides and the second error information during down slip equal angular; According to described second error information, interpolation correction is carried out to described second target location, determine revised described second target location.
Alternatively, described method also comprises:
By processing motion controller, control the angle intervals that described motion controller produces synchronization pulse, the scope of described angle intervals comprises: 0.01 ° ~ 1 °.
Alternatively, described method also comprises:
By arranging cable pillar outside circular shell, described cable column upper section and the first steel bracket are rotationally connected, and described first steel bracket is connected with the second steel bracket by telescopic first wire rope, and described second steel bracket is fixedly connected with described southern dolly;
Described cable column upper section and the 3rd steel bracket are rotationally connected, and described 3rd steel bracket is connected with the 4th steel bracket by telescopic second wire rope, and described 4th steel bracket is fixedly connected with described northern dolly.
The arc-shaped guide rail localization method for rcs measurement described in the embodiment of the present invention, according to the northern dolly of acquisition and the measurement code-disc value of southern dolly, determines described northern dolly and the angle position of southern dolly on described arc-shaped guide rail.Like this, by the measurement code-disc for measuring code-disc value being arranged on respectively the prototype gear of described northern dolly and southern dolly, the measurement code-disc motion be arranged on respective prototype gear can be driven when the prototype gear of described northern dolly and southern dolly rotates, determine described northern dolly and the angle position of southern dolly on described arc-shaped guide rail according to the measurement code-disc value on the described measurement code-disc obtained, thus realize described northern dolly and the accurate location of southern dolly on described arc-shaped guide rail.
On the other hand, the embodiment of the present invention provides a kind of arc-shaped guide rail positioning system for rcs measurement, comprising:
Acquiring unit 101: for obtaining the measurement code-disc value of northern dolly and southern dolly, wherein, is connected with the prototype gear of described northern dolly and southern dolly respectively for the measurement code-disc measuring code-disc value;
Determining unit 102: for according to the described measurement code-disc value obtained, determine described northern dolly and the angle position of southern dolly on described arc-shaped guide rail.
Alternatively, described acquiring unit comprises:
First acquisition module 1011: for obtain described northern dolly preset first object position up slide and down slip equal angular time measurement code-disc value;
Second acquisition module 1012: for obtain described southern dolly preset the second target location up slide and down slip equal angular time measurement code-disc value.
Alternatively, described determining unit comprises:
First processing module 1021: in the coordinate system at unified zero point, the described northern dolly obtained up is slided and down slip equal angular time measurement code-disc value process;
3rd determination module 1022: for determining that described northern dolly up slides and the first error information during down slip equal angular;
First correcting module 1023: for carrying out interpolation correction according to described first error information to described first object position;
4th determination module 1024: for determining revised described first object position;
Second processing module 1025: in the coordinate system at unified zero point, the described southern dolly obtained up is slided and down slip equal angular time measurement code-disc value process;
5th determination module 1026: for determining that described southern dolly up slides and the second error information during down slip equal angular;
Second correcting module 1027: for carrying out interpolation correction according to described second error information to described second target location;
6th determination module 1028: for determining revised described second target location.
Alternatively, described system also comprises:
Control module: for by processing motion controller, control the angle intervals that described motion controller produces synchronization pulse, the scope of described angle intervals comprises: 0.01 ° ~ 1 °.
Alternatively, described system also comprises:
By arranging cable pillar outside circular shell, described cable column upper section and the first steel bracket are rotationally connected, and described first steel bracket is connected with the second steel bracket by telescopic first wire rope, and described second steel bracket is fixedly connected with described southern dolly;
Described cable column upper section and the 3rd steel bracket are rotationally connected, and described 3rd steel bracket is connected with the 4th steel bracket by telescopic second wire rope, and described 4th steel bracket is fixedly connected with described northern dolly.
The arc-shaped guide rail positioning system for rcs measurement described in the embodiment of the present invention, obtained the measurement code-disc value of northern dolly and southern dolly by acquiring unit 101, and determine described northern dolly and the angle position of southern dolly on described arc-shaped guide rail by determining unit 102.Like this, by the measurement code-disc for measuring code-disc value being arranged on respectively the prototype gear of described northern dolly and southern dolly, the measurement code-disc motion be arranged on respective prototype gear can be driven when the prototype gear of described northern dolly and southern dolly rotates, determine described northern dolly and the angle position of southern dolly on described arc-shaped guide rail according to the measurement code-disc value on the described measurement code-disc obtained, thus realize described northern dolly and the accurate location of southern dolly on described arc-shaped guide rail.
Accompanying drawing explanation
The method flow diagram of the arc-shaped guide rail localization method for rcs measurement that Fig. 1 provides for the embodiment of the present invention one;
The control block diagram of the arc-shaped guide rail for rcs measurement that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the arc-shaped guide rail for rcs measurement that Fig. 3 provides for the embodiment of the present invention;
The structural representation of the arc-shaped guide rail positioning system for rcs measurement that Fig. 4 provides for the embodiment of the present invention two;
Fig. 5 is the detailed construction process flow diagram of acquiring unit 101 in Fig. 4;
Fig. 6 is the detailed construction process flow diagram of determining unit 102 in Fig. 4.
Embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The present invention is directed to the distortion of existing arc-shaped guide rail to cause locating coarse problem, a kind of arc-shaped guide rail localization method for rcs measurement and system are provided.In order to meet the demand of bistatic measurement, respectively be provided with a set of for carrying the arc locating device measuring antenna in the North and South direction of arc-shaped guide rail, such as, be provided with the northern dolly 1 carrying northern antenna 11 (emitting antenna) in the north of arc-shaped guide rail 10 and be provided with the southern dolly 2 carrying Nan Tian's line 21 (receiving antenna) in the south of arc-shaped guide rail 10.
Embodiment one
Shown in Fig. 1, the arc-shaped guide rail localization method for rcs measurement that the embodiment of the present invention one provides, comprising:
Obtain the measurement code-disc value of northern dolly 1 and southern dolly 2, wherein, be connected with the prototype gear of described northern dolly 1 and southern dolly 2 respectively for the measurement code-disc measuring code-disc value;
According to the described measurement code-disc value obtained, determine described northern dolly 1 and the angle position of southern dolly 2 on described arc-shaped guide rail 10.
The arc-shaped guide rail localization method for rcs measurement described in the embodiment of the present invention, according to the northern dolly 1 of acquisition and the measurement code-disc value of southern dolly 2, determines described northern dolly 1 and the angle position of southern dolly 2 on described arc-shaped guide rail 10.Like this, by the measurement code-disc for measuring code-disc value being arranged on respectively the prototype gear of described northern dolly 1 and southern dolly 2, the measurement code-disc motion be arranged on respective prototype gear can be driven when the prototype gear of described northern dolly 1 and southern dolly 2 rotates, determine described northern dolly 1 and the angle position of southern dolly 2 on described arc-shaped guide rail 10 according to the measurement code-disc value on the described measurement code-disc obtained, thus realize described northern dolly 1 and the accurate location of southern dolly 2 on described arc-shaped guide rail 10.
The embodiment of the present invention, such as, northern dolly can be installed on the prototype gear 13 of described northern dolly 1 measure code-disc 12 and southern dolly measurement code-disc 22 is installed on the prototype gear of described southern dolly 2, measure code-disc 22 by described northern dolly measurement code-disc 12 and southern dolly and described northern dolly 1 and the angle position of southern dolly 2 on arc-shaped guide rail 10 are measured.Separately servomotor 6 and driven wheel are installed in described northern dolly 1 and southern dolly 2 simultaneously, on the south dolly 2 be example, when described southern dolly 2 starts to slide on arc-shaped guide rail 10, the servomotor 6 of described southern dolly 2 can drive the driven wheel of described southern dolly 2 and drive described southern dolly 2 to slide on described arc-shaped guide rail 10, the driven wheel of described southern dolly 2 can drive and its modulus simultaneously, the prototype gear that the number of teeth is identical rotates, and drive mounted southern dolly measurement code-disc 22 on prototype gear to move, the angle position of described southern dolly 2 on described arc-shaped guide rail 10 is determined according to the measurement code-disc value that the described southern dolly obtained is measured on code-disc 22, wherein, code-disc 22 measured by described southern dolly can adopt absolute type encoder, thus determine the described absolute position of southern dolly 2 on arc-shaped guide rail 10.
In the embodiment of the aforementioned arc-shaped guide rail localization method for rcs measurement, alternatively, the measurement code-disc value of the northern dolly of described acquisition 1 and southern dolly 2 comprises:
Obtain described northern dolly 1 preset first object position up slide and down slip equal angular time measurement code-disc value;
Obtain described southern dolly 2 preset the second target location up slide and down slip equal angular time measurement code-disc value.
In the embodiment of the present invention, on the south dolly 2 be example, when described southern dolly 2 arrives second target location of presetting for the first time, because described arc-shaped guide rail 10 is out of shape to some extent, there is error in the second target location when the second target location of first arrival and described arc-shaped guide rail 10 are not out of shape, need to obtain further described southern dolly 2 first arrive the second target location continue up to slide and down slip equal angular time measurement code-disc value, such as, described the second default target location is 90 °, then need to obtain further measurement code-disc value when described southern dolly 2 is positioned at 89 ° and 91 ° on described arc-shaped guide rail 10.
The embodiment of the present invention, shown in Fig. 2, on the south dolly 2 be example, such as, described the second default target location can be set by industrial computer 3, and the second target location of setting is sent to motion controller 4 by network, described motion controller can be galil multi-axis motion controller, what described galil multi-axis motion controller can control described southern dolly 2 slides into described second target location, concrete, in the sliding process of described southern dolly 2, the angle position that described galil multi-axis motion controller is current on described arc-shaped guide rail 10 according to described southern dolly 2, the speed (code-disc tests the speed) that code-disc is measured and described second target location instruction, determine the speed command (such as: acceleration) of described southern dolly 2, and described speed command is sent to servo-driver 5, thus drive the servomotor 6 of described southern dolly 2 to drive described southern dolly 2 to slide into described second target location, wherein, described second target location scope comprises: within the scope of positive and negative 120 degree of described arc-shaped guide rail 10, in Fig. 2, limit switch can guarantee that described southern dolly 2 slides within the scope of positive and negative 120 degree of described arc-shaped guide rail 10.
In the embodiment of the aforementioned arc-shaped guide rail localization method for rcs measurement, alternatively, the described described measurement code-disc value according to obtaining, determine that described northern dolly 1 and the angle position of southern dolly 2 on described arc-shaped guide rail 10 comprise:
In the coordinate system at unified zero point, the described northern dolly 1 obtained up is slided and down slip equal angular time measurement code-disc value process, determine described northern dolly 1 up slide and down slip equal angular time the first error information;
According to described first error information, interpolation correction is carried out to described first object position, determine revised described first object position;
In the coordinate system at unified zero point, the described southern dolly 2 obtained up is slided and down slip equal angular time measurement code-disc value process, determine described southern dolly 2 up slide and down slip equal angular time the second error information;
According to described second error information, interpolation correction is carried out to described second target location, determine revised described second target location.
In the embodiment of the present invention, on the south dolly 2 be example, such as, measurement code-disc value when can be positioned at 89 ° and 91 ° on described arc-shaped guide rail 10 according to the described southern dolly 2 obtained processes, determine that described southern dolly 2 up slides and second error information of down sliding with angle 1 °, and according to described second error information, interpolation correcting process is done to the second target location, determine revised described second target location.Described galil multi-axis motion controller drives described southern dolly 2 to slide into revised described second target location along described arc-shaped guide rail 10 simultaneously, thus realizes the accurate location of described southern dolly 2 on described arc-shaped guide rail 10.Like this, by carrying out interpolation correcting process to the slip of described southern dolly 2 on arc-shaped guide rail 10, can greatly weaken because described arc-shaped guide rail 10 is out of shape the impact caused positioning precision, experimental result shows, after interpolation correcting process, the positioning precision of residing southern dolly 2 on arc-shaped guide rail 10 reach ± and 0.005 °.
In the embodiment of the aforementioned arc-shaped guide rail localization method for rcs measurement, alternatively, described method comprises:
By processing motion controller, control the angle intervals that described motion controller produces synchronization pulse, the scope of described angle intervals comprises: 0.01 ° ~ 1 °.
In the embodiment of the present invention, shown in Fig. 2, such as, can by programming to galil multi-axis motion controller, control the angle intervals that described galil multi-axis motion controller produces synchronizing pulse, the scope of this angle intervals comprises: 0.01 ° ~ 1 °.Such as, described galil multi-axis motion controller can be set and produce synchronization pulse every 0.01 °.Described synchronizing pulse is for by described southern dolly 2 or northern dolly 1, the angle position on described arc-shaped guide rail 10 sends to RCS testing apparatus 7, so that RCS testing apparatus 7 can be measured RCS present position on described arc-shaped guide rail 10 according to northern dolly 1 and southern dolly 2 timely, contribute to the accuracy improving rcs measurement result.
In the embodiment of the aforementioned arc-shaped guide rail localization method for rcs measurement, alternatively, described method comprises:
By arranging cable pillar outside circular shell, described cable column upper section and the first steel bracket are rotationally connected, and described first steel bracket is connected with the second steel bracket by telescopic first wire rope, and described second steel bracket is fixedly connected with described southern dolly 2;
Described cable column upper section and the 3rd steel bracket are rotationally connected, and described 3rd steel bracket is connected with the 4th steel bracket by telescopic second wire rope, and described 4th steel bracket is fixedly connected with described northern dolly 1.
In the embodiment of the present invention, shown in Fig. 3, in order to ensure the accuracy of rcs measurement result, should the ball housing minimizing in rcs measurement laboratory lay the influential equipment of rcs measurement result, such as, cable tray, to the north of dolly 1 be example, the cable tray 9 of described northern dolly 1 comprises: the first steel bracket L1, the second steel bracket L2 and telescopic first wire rope.Be provided with a cable pillar 8 rcs measurement laboratory spherical shell is external, described cable pillar has been installed rotary first steel bracket L1, described first steel bracket L1 is connected by telescopic first wire rope with the second steel bracket L2, described second steel bracket L2 is fixedly connected with described northern dolly 1, like this, when northern dolly 1 slides along described arc-shaped guide rail 10, northern dolly 1 cable bracket retractilely can be followed northern dolly 1 and be slided, and can not collide with ball housing.Same, on the south dolly 2 be example, the cable tray of described southern dolly 2 comprises: the 3rd steel bracket, the 4th steel bracket and telescopic second wire rope, described cable column upper section and the 3rd steel bracket are rotationally connected, described 3rd steel bracket is connected with the 4th steel bracket by telescopic second wire rope, described 4th steel bracket is fixedly connected with described southern dolly 2, like this, when southern dolly 2 slides along described arc-shaped guide rail 10, south dolly 2 cable bracket retractilely can be followed southern dolly 2 and be slided, and can not collide with ball housing.
Embodiment two
Shown in Fig. 4, the embodiment of the present invention two provides a kind of arc-shaped guide rail positioning system for rcs measurement, comprising:
Acquiring unit 101: for obtaining the measurement code-disc value of northern dolly 1 and southern dolly 2, wherein, is connected with the prototype gear of described northern dolly 1 and southern dolly 2 respectively for the measurement code-disc measuring code-disc value;
Determining unit 102: for according to the described measurement code-disc value obtained, determine described northern dolly 1 and the angle position of southern dolly 2 on described arc-shaped guide rail 10.
The arc-shaped guide rail positioning system for rcs measurement described in the embodiment of the present invention, obtained the measurement code-disc value of northern dolly 1 and southern dolly 2 by acquiring unit, and determine described northern dolly 1 and the angle position of southern dolly 2 on described arc-shaped guide rail 10 by determining unit.Like this, by the measurement code-disc for measuring code-disc value being arranged on respectively the prototype gear of described northern dolly 1 and southern dolly 2, the measurement code-disc motion be arranged on respective prototype gear can be driven when the prototype gear of described northern dolly 1 and southern dolly 2 rotates, determine described northern dolly 1 and the angle position of southern dolly 2 on described arc-shaped guide rail 10 according to the measurement code-disc value on the described measurement code-disc obtained, thus realize described northern dolly 1 and the accurate location of southern dolly 2 on described arc-shaped guide rail 10.
Shown in Fig. 5, in the embodiment of the aforementioned arc-shaped guide rail positioning system for rcs measurement, alternatively, described acquiring unit 101 comprises:
First acquisition module 1011: for obtain described northern dolly 1 preset first object position up slide and down slip equal angular time measurement code-disc value;
Second acquisition module 1012: for obtain described southern dolly 2 preset the second target location up slide and down slip equal angular time measurement code-disc value.
Shown in Fig. 6, in the embodiment of the aforementioned arc-shaped guide rail positioning system for rcs measurement, alternatively, described determining unit 102 comprises:
First processing module 1021: in the coordinate system at unified zero point, the described northern dolly 1 obtained up is slided and down slip equal angular time measurement code-disc value process;
3rd determination module 1022: for determining that described northern dolly 1 up slides and the first error information during down slip equal angular;
First correcting module 1023: for carrying out interpolation correction according to described first error information to described first object position;
4th determination module 1024: for determining revised described first object position;
Second processing module 1025: in the coordinate system at unified zero point, the described southern dolly 2 obtained up is slided and down slip equal angular time measurement code-disc value process;
5th determination module 1026: for determining that described southern dolly 2 up slides and the second error information during down slip equal angular;
Second correcting module 1027: for carrying out interpolation correction according to described second error information to described second target location;
6th determination module 1028: for determining revised described second target location.
In the embodiment of the aforementioned arc-shaped guide rail positioning system for rcs measurement, alternatively, described system also comprises:
Control module: for by processing motion controller, control the angle intervals that described motion controller produces synchronization pulse, the scope of described angle intervals comprises: 0.01 ° ~ 1 °.
In the embodiment of the aforementioned arc-shaped guide rail positioning system for rcs measurement, alternatively, described system also comprises:
By arranging cable pillar outside circular shell, described cable column upper section and the first steel bracket are rotationally connected, and described first steel bracket is connected with the second steel bracket by telescopic first wire rope, and described second steel bracket is fixedly connected with described southern dolly 2;
Described cable column upper section and the 3rd steel bracket are rotationally connected, and described 3rd steel bracket is connected with the 4th steel bracket by telescopic second wire rope, and described 4th steel bracket is fixedly connected with described northern dolly 1.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1., for an arc-shaped guide rail localization method for rcs measurement, it is characterized in that, comprising:
Obtain the measurement code-disc value of northern dolly and southern dolly, wherein, be connected with the prototype gear of described northern dolly and southern dolly respectively for the measurement code-disc measuring code-disc value;
According to the described measurement code-disc value obtained, determine described northern dolly and the angle position of southern dolly on described arc-shaped guide rail.
2. the arc-shaped guide rail localization method for rcs measurement according to claim 1, is characterized in that, the measurement code-disc value of the northern dolly of described acquisition and southern dolly comprises:
Obtain described northern dolly preset first object position up slide and down slip equal angular time measurement code-disc value;
Obtain described southern dolly preset the second target location up slide and down slip equal angular time measurement code-disc value.
3. the arc-shaped guide rail localization method for rcs measurement according to claim 2, is characterized in that, the described described measurement code-disc value according to obtaining, and determines that described northern dolly and the angle position of southern dolly on described arc-shaped guide rail comprise:
In the coordinate system at unified zero point, the described northern dolly obtained up is slided and down slip equal angular time measurement code-disc value process, determine that described northern dolly up slides and the first error information during down slip equal angular;
According to described first error information, interpolation correction is carried out to described first object position, determine revised described first object position;
In the coordinate system at unified zero point, the described southern dolly obtained up is slided and down slip equal angular time measurement code-disc value process, determine that described southern dolly up slides and the second error information during down slip equal angular; According to described second error information, interpolation correction is carried out to described second target location, determine revised described second target location.
4. the arc-shaped guide rail localization method for rcs measurement according to claim 3, is characterized in that, comprising:
By processing motion controller, control the angle intervals that described motion controller produces synchronization pulse, the scope of described angle intervals comprises: 0.01 ° ~ 1 °.
5. the arc-shaped guide rail localization method for rcs measurement according to claim 1, is characterized in that, comprising:
By arranging cable pillar outside circular shell, described cable column upper section and the first steel bracket are rotationally connected, and described first steel bracket is connected with the second steel bracket by telescopic first wire rope, and described second steel bracket is fixedly connected with described southern dolly;
Described cable column upper section and the 3rd steel bracket are rotationally connected, and described 3rd steel bracket is connected with the 4th steel bracket by telescopic second wire rope, and described 4th steel bracket is fixedly connected with described northern dolly.
6., for an arc-shaped guide rail positioning system for rcs measurement, it is characterized in that, comprising:
Acquiring unit: for obtaining the measurement code-disc value of northern dolly and southern dolly, wherein, is connected with the prototype gear of described northern dolly and southern dolly respectively for the measurement code-disc measuring code-disc value;
Determining unit: for according to the described measurement code-disc value obtained, determine described northern dolly and the angle position of southern dolly on described arc-shaped guide rail.
7. the arc-shaped guide rail positioning system for rcs measurement according to claim 6, it is characterized in that, described acquiring unit comprises:
First acquisition module: for obtain described northern dolly preset first object position up slide and down slip equal angular time measurement code-disc value;
Second acquisition module: for obtain described southern dolly preset the second target location up slide and down slip equal angular time measurement code-disc value.
8. the arc-shaped guide rail positioning system for rcs measurement according to claim 7, it is characterized in that, described determining unit comprises:
First processing module: in the coordinate system at unified zero point, the described northern dolly obtained up is slided and down slip equal angular time measurement code-disc value process;
3rd determination module: for determining that described northern dolly up slides and the first error information during down slip equal angular;
First correcting module: for carrying out interpolation correction according to described first error information to described first object position;
4th determination module: for determining revised described first object position;
Second processing module: in the coordinate system at unified zero point, the described southern dolly obtained up is slided and down slip equal angular time measurement code-disc value process;
5th determination module: for determining that described southern dolly up slides and the second error information during down slip equal angular;
Second correcting module: for carrying out interpolation correction according to described second error information to described second target location;
6th determination module: for determining revised described second target location.
9. the arc-shaped guide rail positioning system for rcs measurement according to claim 8, is characterized in that, comprising:
Control module: for by processing motion controller, control the angle intervals that described motion controller produces synchronization pulse, the scope of described angle intervals comprises: 0.01 ° ~ 1 °.
10. the arc-shaped guide rail positioning system for rcs measurement according to claim 6, is characterized in that, comprising:
By arranging cable pillar outside circular shell, described cable column upper section and the first steel bracket are rotationally connected, and described first steel bracket is connected with the second steel bracket by telescopic first wire rope, and described second steel bracket is fixedly connected with described southern dolly;
Described cable column upper section and the 3rd steel bracket are rotationally connected, and described 3rd steel bracket is connected with the 4th steel bracket by telescopic second wire rope, and described 4th steel bracket is fixedly connected with described northern dolly.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019247A (en) * | 2016-05-19 | 2016-10-12 | 北京环境特性研究所 | Method for correcting circular motion orientation error of carrying platform of object spectrum RCS measuring system |
| CN107990849A (en) * | 2017-12-01 | 2018-05-04 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Carriage track straightness and depth of parallelism automatic detection device and its detection method |
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