CN105807270A - Coherent wind lidar wind measurement performance analysis method and system - Google Patents
Coherent wind lidar wind measurement performance analysis method and system Download PDFInfo
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- CN105807270A CN105807270A CN201610147395.7A CN201610147395A CN105807270A CN 105807270 A CN105807270 A CN 105807270A CN 201610147395 A CN201610147395 A CN 201610147395A CN 105807270 A CN105807270 A CN 105807270A
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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
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Abstract
The invention relates to a coherent wind lidar wind measurement performance analysis method and system. The method includes the steps that firstly, hardware parameters in a subsystem unit are set according to expected design indexes, related indexes in a transmission logic interface unit are set, and atmosphere optical properties of coherent wind lidar work are set; secondly, according to the set parameters, the indexes and the atmosphere optical properties, the whole wind measurement process of coherent wind lidar is simulated, wind measurement precision of an initial set threshold is obtained according to hardware parameters in a feedback debugging subsystem unit and the related indexes in the transmission logic interface unit, and optimized hardware parameters, optimized related indexes and optimal wind measurement precision in different atmosphere environments are obtained. By means of the method and system, the coherent wind lidar meeting requirements can be conveniently designed, the early-stage design stage is guaranteed, system hardware is calculated and analyzed again, and the optimal hardware parameters are obtained.
Description
Technical field
The present invention relates to a kind of coherent wind laser radar and survey wind method for analyzing performance and system, belong to laser radar system design field.
Background technology
Coherent wind laser radar is a kind of novel troposphere atmospheric wind detecting devices, it high-spatial and temporal resolution, the radial direction wind speed of continuous probe radar overhead arbitrary orientation and synthesis can be up to the vertically-supplying air section of 10km under the condition such as clear sky, haze, and the atmospheric extinction of arbitrary orientation, back scattering and move back polarization information.This equipment has huge application prospect in fields such as aviation safety, meteorology, wind energy wind-powered electricity generations.At present, traditional coherent wind laser radar design, it is usually from radar equation, by revising the parameter of radar system, and verifies the design performance of radar system by building the mode of principle prototype.This pattern, it is necessary to by the progressively modification and perfection to hardware, can be only achieved the requirement of design.Therefore the design cycle is long, and error rate is high, and cost is high, and designer is at the beginning of system designs, it is impossible to get information about the performance level that radar system is overall.
Summary of the invention
The technical problem to be solved is to provide and a kind of solves current coherent wind laser radar design cycle length, the coherent wind laser radar of error-prone problem surveys wind method for analyzing performance and system.
The technical scheme is that wind method for analyzing performance surveyed by a kind of coherent wind laser radar, specifically include following steps:
Step 1: according to desired design objective, the hardware parameter in subsystem element is set, the index of correlation in transmission logic interface unit is set；The atmospheric optical properties of coherent wind laser radar work is set；
Step 2: carry out surveying the overall process of wind according to the parameter set, index and atmospheric optical properties simulation coherent wind laser radar, reach initially to set the survey wind precision of threshold value by feeding back the hardware parameter in debugging subsystem element and the index of correlation in transmission logic interface unit to obtain, obtain the hardware parameter and the index of correlation that optimize and optimum survey wind precision under different atmospheric environment.
The invention has the beneficial effects as follows: the present invention can simulate the hardware effort flow process of whole radar system, atmospheric optics environment and survey wind performance, conveniently design the coherent wind laser radar meeting requirement, ensure the early stage design phase, system hardware is carried out computational analysis again, it is thus achieved that optimized hardware parameter.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described step 1 specifically includes following steps:
Step 1.1: according to desired design objective, arrange the hardware parameter in subsystem element, to simulate the hardware index of coherent wind laser radar；
Step 1.2: set index of correlation in transmission logic interface unit；
Step 1.3: set the atmospheric optical properties of coherent wind laser radar work in air unit.
Further, the index of correlation in described transmission logic interface unit includes the indexs such as the interface hardware index between the workflow between each subsystem element, logical order and each subsystem and attenuation relation.
Further, described step 2 specifically includes following steps:
Step 2.1: the parameter set according to step 1 and index of correlation are simulated coherent wind laser radar system and survey the overall process of wind, obtains surveying wind result；
Step 2.2: according to surveying wind result by the relevant parameter in automatic correcting method amendment subsystem element and the index of correlation in transmission logic interface unit；
Step 2.3: simulate coherent wind laser radar system according to amended parameter and index and survey the overall process of wind, obtains surveying wind result；
Step 2.4: judge when whether the precision of before measurement wind result reaches the threshold value preset, if it is, perform step 2.5；Otherwise, step 2.2 is returned；
Step 2.5: output obtains the hardware parameter in this subsystem element surveying wind result and the index of correlation in transmission logic interface unit.
Further, optimum when also exporting different atmospheric environment in described step 2.5 surveys wind precision.
The technical scheme is that wind performance analysis system surveyed by a kind of coherent wind laser radar, including multiple subsystem element, transmission logic interface unit, air unit and calculation optimization analytic unit again；
Described subsystem element is for setting the hardware parameter of simulation coherent wind laser radar system；
Described transmission logic interface unit is for setting the index of correlation of simulation coherent wind laser radar system；
Described air unit is for setting the atmospheric optical properties of coherent wind laser radar work；
The described analytic unit of calculation optimization again is for carrying out surveying the overall process of wind according to the parameter set, index and atmospheric optical properties simulation coherent wind laser radar, reach initially to set the survey wind precision of threshold value by feeding back the hardware parameter in debugging subsystem element and the index of correlation in transmission logic interface unit to obtain, obtain the hardware parameter and the index of correlation that optimize and optimum survey wind precision under different atmospheric environment.
The invention has the beneficial effects as follows: the present invention can simulate the hardware effort flow process of whole radar system, atmospheric optics environment and survey wind performance, conveniently design the coherent wind laser radar meeting requirement, ensure the early stage design phase, system hardware is carried out computational analysis again, it is thus achieved that optimized hardware parameter.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described subsystem element includes laser module, receiving telescope module, outer difference module, time-sequence control mode, detector module and data acquisition module；
Described laser module is for the laser transmitting system of guinea pig system；
Described receiving telescope module is for the send-receive antenna of guinea pig system；
Described outer difference module receives system for the frequency discrimination of guinea pig system；
Described time-sequence control mode is for the sequential flow process of guinea pig system；
Described detector module is for the detector system of guinea pig system；
Described data acquisition module is for the data acquisition storage system of guinea pig system.
Adopting above-mentioned further scheme to provide the benefit that, in subsystem element, all modules are by calling the component library of maturation, read its hardware parameter, it is also possible to become model by user's designed, designed, put in the link in storehouse, for calling and design verification.
Further, described transmission logic interface unit includes transmission logic module and interface parameters module；
Described transmission logic module is for setting the work-based logic relation between each subsystem element；
Described interface parameters module is for setting the indexs such as interface hardware index between each subsystem element and attenuation relation.
Further, described atmospheric environment unit includes atmospheric extinction module and back scattering module；
Described atmospheric extinction module is for setting the atmospheric attenuation parameter of radar emission wave beam and echo-signal；
Described back scattering module is used for setting radar system scattering section parameter.
Further, the described analytic unit of calculation optimization again includes automatic correcting module and artificial correcting module；
Described automatic correcting module is used for automatically analyzing and revise the index of correlation in the hardware parameter of subsystem element and transmission logic interface unit；
Described artificial correcting module, for external user feedback, notifies the index of correlation in the hardware parameter of user's manual modification subsystem element and transmission logic interface unit.
Accompanying drawing explanation
Fig. 1 is that wind method for analyzing performance flow chart surveyed by a kind of coherent wind laser radar described in the embodiment of the present invention 1；
Fig. 2 is that wind performance analysis system structured flowchart surveyed by a kind of coherent wind laser radar described in the embodiment of the present invention 1；
Fig. 3 is a kind of concrete structure schematic diagram that wind performance analysis system surveyed by a kind of coherent wind laser radar described in embodiment 5.
In accompanying drawing, the list of parts representated by each label is as follows:
1, subsystem element, 2, transmission logic interface unit, 3, air unit, 4, calculation optimization analytic unit again, 11, laser module, 12, receiving telescope module, 13, outer difference module, 14, time-sequence control mode, 15, detector module, 16, data acquisition module, 21, transmission logic module, 22, interface parameters module, 31, atmospheric extinction module, 32, back scattering module, 41, automatic correcting module, 42, artificial correcting module.
Detailed description of the invention
Below in conjunction with accompanying drawing, principles of the invention and feature being described, example is served only for explaining the present invention, is not intended to limit the scope of the present invention.
As it is shown in figure 1, survey wind method for analyzing performance for a kind of coherent wind laser radar described in the embodiment of the present invention 1, specifically include following steps:
Step 1: according to desired design objective, the hardware parameter in subsystem element is set, the index of correlation in transmission logic interface unit is set；The atmospheric optical properties of coherent wind laser radar work is set；
Step 2: carry out surveying the overall process of wind according to the parameter set, index and atmospheric optical properties simulation coherent wind laser radar, reach initially to set the survey wind precision of threshold value by feeding back the hardware parameter in debugging subsystem element and the index of correlation in transmission logic interface unit to obtain, obtain the hardware parameter and the index of correlation that optimize and optimum survey wind precision under different atmospheric environment.
Wind method for analyzing performance surveyed by a kind of coherent wind laser radar described in embodiment 2, and on the basis of embodiment 1, described step 1 specifically includes following steps:
Step 1.1: according to desired design objective, arrange the hardware parameter in subsystem element, to simulate the hardware index of coherent wind laser radar；
Step 1.2: set index of correlation in transmission logic interface unit；
Step 1.3: set the atmospheric optical properties of coherent wind laser radar work in air unit.
Wind method for analyzing performance surveyed by a kind of coherent wind laser radar described in embodiment 3, on the basis of embodiment 1 or 2, the index of correlation in described transmission logic interface unit includes the indexs such as the interface hardware index between the workflow between each subsystem, logical order and each subsystem and attenuation relation.
Wind method for analyzing performance surveyed by a kind of coherent wind laser radar described in embodiment 4, and on the basis of embodiment 1-3 any embodiment, described step 2 specifically includes following steps:
Step 2.1: the parameter set according to step 1 and index of correlation are simulated coherent wind laser radar system and survey the overall process of wind, obtains surveying wind result；
Step 2.2: according to surveying wind result by the relevant parameter in automatic correcting method amendment subsystem element and the index of correlation in transmission logic interface unit；
Step 2.3: simulate coherent wind laser radar system according to amended parameter and index and survey the overall process of wind, obtains surveying wind result；
Step 2.4: judge when whether the precision of before measurement wind result reaches the threshold value preset, if it is, perform step 2.5；Otherwise, step 2.2 is returned；
Step 2.5: output obtains the hardware parameter in this subsystem element surveying wind result and the index of correlation in transmission logic interface unit.
Wind method for analyzing performance surveyed by a kind of coherent wind laser radar described in embodiment 5, and on the basis of embodiment 4, in described step 2.5, optimum during also output difference atmospheric environment surveys wind precision.
As in figure 2 it is shown, survey wind performance analysis system for a kind of coherent wind laser radar described in the embodiment of the present invention 1, including multiple subsystem element 1, transmission logic interface unit 2, air unit 3 and calculation optimization analytic unit 4 again；
Described subsystem element 1 is for setting the hardware parameter of simulation coherent wind laser radar system；
Described transmission logic interface unit 2 is for setting the index of correlation of simulation coherent wind laser radar system；
Described air unit 3 is for setting the atmospheric optical properties of coherent wind laser radar work；
The described analytic unit of calculation optimization again 1 is for carrying out surveying the overall process of wind according to the parameter set, index and atmospheric optical properties simulation coherent wind laser radar, reach initially to set the survey wind precision of threshold value by feeding back the hardware parameter in debugging subsystem element 1 and the index of correlation in transmission logic interface unit 2 to obtain, obtain the hardware parameter and the index of correlation that optimize and optimum survey wind precision under different atmospheric environment.
Wind performance analysis system surveyed by a kind of coherent wind laser radar described in embodiment 2, on the basis of embodiment 1, described subsystem element 1 includes laser module 11, receiving telescope module 12, outer difference module 13, time-sequence control mode 14, detector module 15 and data acquisition module 16；
Described laser module 11 is for the laser transmitting system of guinea pig system；
Described receiving telescope module 12 is for the send-receive antenna of guinea pig system；
Described outer difference module 13 receives system for the frequency discrimination of guinea pig system；
Described time-sequence control mode 14 is for the sequential flow process of guinea pig system；
Described detector module 15 is for the detector system of guinea pig system；
Described data acquisition module 16 is for the data acquisition storage system of guinea pig system.
Wind performance analysis system surveyed by a kind of coherent wind laser radar described in embodiment 3, and on the basis of embodiment 1 or 2, described transmission logic interface unit 2 includes transmission logic module 21 and interface parameters module 22；
Described transmission logic module 21 is for setting the work-based logic relation between each subsystem element；
Described interface parameters module 22 is for setting the indexs such as interface hardware index between each subsystem element and attenuation relation.
Wind performance analysis system surveyed by a kind of coherent wind laser radar described in embodiment 4, and on the basis of embodiment 1-3 any embodiment, described atmospheric environment unit 3 includes atmospheric extinction module 31 and back scattering module 32；
Described atmospheric extinction module 31 is for setting the atmospheric attenuation parameter of radar emission wave beam and echo-signal；
Described back scattering module 32 is used for setting radar system scattering section parameter.
Wind performance analysis system surveyed by a kind of coherent wind laser radar described in embodiment 5, and on the basis of embodiment 1-4 any embodiment, the described analytic unit of calculation optimization again 4 includes automatic correcting module 41 and artificial correcting module 42；
Described automatic correcting module 41 is used for automatically analyzing and revise the index of correlation in the hardware parameter of subsystem element and transmission logic interface unit；
Described artificial correcting module 42 for external user feedback, notifies the index of correlation in the hardware parameter of user's manual modification subsystem element and transmission logic interface unit.
Fig. 3 is a kind of concrete structure schematic diagram that wind performance analysis system surveyed by a kind of coherent wind laser radar described in embodiment 5.
In concrete example, the present invention includes following components:
1. subsystem element
Equipment subsystem unit is divided into laser module, receiving telescope module, outer difference module, detector module and data acquisition module, laser module for the laser transmitting system of guinea pig system, receiving telescope module for the send-receive antenna of guinea pig system, outer difference module receives system for the frequency discrimination of guinea pig system, time-sequence control mode is for the sequential flow process of guinea pig system, detector module is for the detector system of guinea pig system, and data acquisition module is for the data acquisition storage system of guinea pig system.They, by calling the component library of maturation, read its hardware parameter, it is also possible to become model by user's designed, designed, put in the link in storehouse, for calling and design verification.
2. transmission logic interface unit
Transmission logic interface unit is divided into transmission logic module and interface parameters module, and transmission logic module is for setting work-based logic relation between each subsystem, and interface parameters module is for setting the indexs such as interface hardware parameter between subsystem, performance degradation.
3. atmospheric environment unit
Atmospheric environment unit is divided into atmospheric extinction module and back scattering module, and atmospheric extinction module is for setting the atmospheric attenuation parameter of radar emission wave beam and echo-signal, and back scattering module is used for setting radar system scattering section parameter.
4. calculation optimization analytic unit again
Calculation optimization analytic unit is divided into automatic correcting module and artificial correcting module again, automatic correcting module is for automatically analyzing and revise the Hardware match performance of coherent wind laser radar system, and artificial correcting module is used for as user's manual modification system index and carries out re-optimization design.
The present invention is based on coherent wind laser radar design traditional at present, it is proposed that a kind of modeling scheme analyzed again based on hardware parameter, overcomes the deficiency of existing method for designing in the past.Traditional laser radar design is merged by the present invention with optical software storehouse, circuit simulation software storehouse and mechanistic model software library, defines new technical scheme.
The new technical scheme that the present invention proposes, consider design coherent wind laser radar cycle length, hardware at present and choose error rate height, need to build the problem of principle prototype, be used for better meeting: shorten cycle design, modularized design, error rate is low, save the requirement of cost.
In describing the invention, it is necessary to explanation, unless otherwise prescribed and limit, each term should be interpreted broadly.For the ordinary skill in the art, it is possible to understand the concrete meaning of above-mentioned term as the case may be.
With reference to as explained below and accompanying drawing, it will be clear that these and other aspects of embodiments of the invention.Describe at these and in accompanying drawing, specifically disclose some particular implementation in embodiments of the invention, representing some modes of the principle implementing embodiments of the invention, but it is to be understood that the scope of embodiments of the invention is not limited.On the contrary, all changes within the scope of embodiments of the invention include falling into attached claims spirit and intension, amendment and equivalent.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (10)
1. wind method for analyzing performance surveyed by a coherent wind laser radar, it is characterised in that specifically include following steps:
Step 1: according to desired design objective, the hardware parameter in subsystem element is set, the index of correlation in transmission logic interface unit is set；The atmospheric optical properties of coherent wind laser radar work is set；
Step 2: carry out surveying the overall process of wind according to the parameter set, index and atmospheric optical properties simulation coherent wind laser radar, reach initially to set the survey wind precision of threshold value by feeding back the hardware parameter in debugging subsystem element and the index of correlation in transmission logic interface unit to obtain, obtain the hardware parameter and the index of correlation that optimize and optimum survey wind precision under different atmospheric environment.
2. wind method for analyzing performance surveyed by a kind of coherent wind laser radar according to claim 1, it is characterised in that described step 1 specifically includes following steps:
Step 1.1: according to desired design objective, arrange the hardware parameter in subsystem element, to simulate the hardware index of coherent wind laser radar；
Step 1.2: set index of correlation in transmission logic interface unit；
Step 1.3: set the atmospheric optical properties of coherent wind laser radar work in air unit.
3. wind method for analyzing performance surveyed by a kind of coherent wind laser radar according to claim 1, it is characterized in that, the index of correlation in described transmission logic interface unit includes the interface hardware index between the workflow between each subsystem element, logical order and each subsystem and attenuation relation index.
4. wind method for analyzing performance surveyed by a kind of coherent wind laser radar according to any one of claim 1-3, it is characterised in that described step 2 specifically includes following steps:
Step 2.1: the parameter set according to step 1 and index of correlation are simulated coherent wind laser radar system and survey the overall process of wind, obtains surveying wind result；
Step 2.2: according to surveying wind result by the relevant parameter in automatic correcting method amendment subsystem element and the index of correlation in transmission logic interface unit；
Step 2.3: simulate coherent wind laser radar system according to amended parameter and index and survey the overall process of wind, obtains surveying wind result；
Step 2.4: judge when whether the precision of before measurement wind result reaches the threshold value preset, if it is, perform step 2.5；Otherwise, step 2.2 is returned；
Step 2.5: output obtains the hardware parameter in this subsystem element surveying wind result and the index of correlation in transmission logic interface unit.
5. wind method for analyzing performance surveyed by a kind of coherent wind laser radar according to claim 4, it is characterised in that in described step 2.5, optimum during also output difference atmospheric environment surveys wind precision.
6. wind performance analysis system surveyed by a coherent wind laser radar, it is characterised in that include multiple subsystem element, transmission logic interface unit, air unit and calculation optimization analytic unit again；
Described subsystem element is for setting the hardware parameter of simulation coherent wind laser radar system；
Described transmission logic interface unit is for setting the index of correlation of simulation coherent wind laser radar system；
Described air unit is for setting the atmospheric optical properties of coherent wind laser radar work；
The described analytic unit of calculation optimization again is for carrying out surveying the overall process of wind according to the parameter set, index and atmospheric optical properties simulation coherent wind laser radar, reach initially to set the survey wind precision of threshold value by feeding back the index of correlation in the hardware parameter and transmission logic interface unit debugging subsystem element to obtain, obtain the hardware parameter and the index of correlation that optimize and optimum survey wind precision under different atmospheric environment.
7. wind performance analysis system surveyed by a kind of coherent wind laser radar according to claim 6, it is characterized in that, described subsystem element includes laser module, receiving telescope module, outer difference module, time-sequence control mode, detector module and data acquisition module；
Described laser module is for the laser transmitting system of guinea pig system；
Described receiving telescope module is for the send-receive antenna of guinea pig system；
Described outer difference module receives system for the frequency discrimination of guinea pig system；
Described time-sequence control mode is for the sequential flow process of guinea pig system；
Described detector module is for the detector system of guinea pig system；
Described data acquisition module is for the data acquisition storage system of guinea pig system.
8. wind performance analysis system surveyed by a kind of coherent wind laser radar according to claim 6, it is characterised in that described transmission logic interface unit includes transmission logic module and interface parameters module；
Described transmission logic module is for setting the work-based logic relation between each subsystem element；
Described interface parameters module is used for the interface hardware index and the attenuation relation index that set between subsystem element.
9. wind performance analysis system surveyed by a kind of coherent wind laser radar according to claim 6, it is characterised in that described atmospheric environment unit includes atmospheric extinction module and back scattering module；
Described atmospheric extinction module is for setting the atmospheric attenuation parameter of radar emission wave beam and echo-signal；
Described back scattering module is used for setting radar system scattering section parameter.
10. wind performance analysis system surveyed by a kind of coherent wind laser radar according to any one of claim 6-9, it is characterised in that the described analytic unit of calculation optimization again includes automatic correcting module and artificial correcting module；
Described automatic correcting module is used for automatically analyzing and revise the index of correlation in the hardware parameter of subsystem element and transmission logic interface unit；
Described artificial correcting module, for external user feedback, notifies the index of correlation in the hardware parameter of user's manual modification subsystem element and transmission logic interface unit.
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| CN105807270B (en) | 2018-04-03 |
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