Coherent wind lidar wind measurement performance analysis method and system

A technology of lidar wind measurement and coherent wind measurement, applied in radio wave measurement systems, instruments, etc., can solve the problems of long design period of coherent wind measurement lidar and error-prone coherent wind measurement lidar, etc.

Active Publication Date: 2016-07-27
航天新气象科技有限公司
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a coherent wind-measuring lidar wind measurement

Method used

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  • Coherent wind lidar wind measurement performance analysis method and system
  • Coherent wind lidar wind measurement performance analysis method and system
  • Coherent wind lidar wind measurement performance analysis method and system

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Experimental program
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Embodiment 2

[0054] A coherent wind measurement laser radar wind measurement performance analysis method described in embodiment 2, on the basis of embodiment 1, the step 1 specifically includes the following steps:

[0055] Step 1.1: According to the expected design index, set the hardware parameters in the subsystem unit to simulate the hardware index of the coherent wind lidar;

[0056] Step 1.2: Set relevant indicators in the transmission logic interface unit;

[0057] Step 1.3: Set the atmospheric optical characteristics of the coherent wind lidar in the atmospheric unit.

Embodiment 3

[0058] A coherent wind measurement lidar wind measurement performance analysis method described in embodiment 3, on the basis of embodiment 1 or 2, the relevant indicators in the transmission logic interface unit include the workflow, logic The order and the interface hardware indicators and attenuation relationship between the subsystems and other indicators.

Embodiment 4

[0059] A coherent wind measurement lidar wind measurement performance analysis method described in embodiment 4, on the basis of any one of embodiments 1-3, the step 2 specifically includes the following steps:

[0060] Step 2.1: Simulate the whole process of wind measurement of the coherent wind lidar system according to the parameters and related indicators set in step 1, and obtain the wind measurement results;

[0061] Step 2.2: Modify the relevant parameters in the subsystem unit and the relevant indicators in the transmission logic interface unit through the automatic correction method according to the wind measurement results;

[0062] Step 2.3: Simulate the whole process of wind measurement of the coherent wind lidar system according to the modified parameters and indicators, and obtain the wind measurement results;

[0063] Step 2.4: Determine whether the accuracy of the current wind measurement results reaches the preset threshold, if yes, perform step 2.5; otherwise...

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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 [0001] The invention relates to a wind measurement performance analysis method and system of a coherent wind-measuring laser radar, which belongs to the field of laser radar system design. Background technique [0002] Coherent wind lidar is a new type of detection equipment for the tropospheric atmospheric wind field. It can continuously detect the radial wind speed in any direction above the radar with high temporal and spatial resolution and synthesize the vertical wind speed up to 10km under the conditions of clear sky and haze. profile, and atmospheric extinction, backscattering, and depolarization information at any azimuth. The device has great application prospects in the fields of aviation safety, meteorology, wind energy and wind power. At present, the traditional coherent wind lidar design generally starts from the radar equation, corrects the parameters of the radar system, and verifies the design performance of the radar system by building a pro...

Claims

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Application Information

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IPC IPC(8): G01S7/497
CPCG01S7/497
Inventor 贾静宇禹智斌王志锐沈江林杨川张明阳
Owner 航天新气象科技有限公司
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