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Infrared target radiation characteristic simulation model checking verifying method based on small subsamples

A simulation model and infrared target technology, applied in the field of simulation model verification and verification, can solve problems such as difficulty in guaranteeing confidence, high cost, and complicated verification process, and achieve the effect of ensuring confidence and reducing cost and complexity

Inactive Publication Date: 2017-04-26
SHANGHAI INST OF ELECTROMECHANICAL ENG
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The qualitative verification of the simulation model is easy to operate and low in cost, but the qualitative method relies on the subjective judgment of expert experience, and it is difficult to guarantee the degree of confidence
Quantitative verification is based on the real system as a reference, and the confidence is guaranteed, but the cost is high, the verification process is complicated, and the efficiency is low

Method used

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  • Infrared target radiation characteristic simulation model checking verifying method based on small subsamples
  • Infrared target radiation characteristic simulation model checking verifying method based on small subsamples
  • Infrared target radiation characteristic simulation model checking verifying method based on small subsamples

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Embodiment

[0028] In this embodiment, an infrared radiation characteristic simulation model of an aircraft in the air is taken as an example.

[0029] like figure 1 As shown, in step 101, in order to reduce the difficulty of air target flight state parameters, the infrared radiation image acquisition equipment is set up directly below the flight path of the aircraft. The aircraft cruises at a fixed altitude at a fixed speed, so that the state parameters such as the yaw angle of the target relative to the observer and the movement of the target remain unchanged. Only the pitch angle changes, and the pitch angle can be calculated.

[0030] In this embodiment, five states of pitch angles of 5 degrees, 10 degrees, 15 degrees, 20 degrees, and 25 degrees are selected, and other parameters remain unchanged. Read the infrared radiation image data in these 5 states, for the convenience of description, hereinafter referred to as "real target image".

[0031] In step 102, the simulation model is ...

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Abstract

The invention discloses an infrared target radiation characteristic simulation model checking verifying method based on small subsamples. The infrared target radiation characteristic simulation model checking verifying method comprises steps that infrared radiation images of an actual target in different states are acquired, and infrared radiation luminance data is read; under the same condition, a simulation model is operated, and the infrared radiation luminance data is output; actual data and analog data are respectively counted to form a radiation luminance histogram; a representative radiation luminance interval is selected in the histogram, and a radiation luminance distribution number in the interval is counted; by adopting a rank-sum test method, a rank-sum test statistic amount is calculated, and whether the actual data and the analog data belong to a same sample is determined. The simple and effective method is provided for the simulation model verification under a condition of few actual measurement samples, and the infrared target radiation characteristic simulation model checking verifying method is widely used for the checking and the verifying of target or environmental electromagnetic radiation simulation models.

Description

technical field [0001] The invention relates to the field of modeling and simulation, in particular to a simple and effective method for checking and verifying a simulation model under the condition of only a small number of samples. Background technique [0002] Simulation model checking and verification is a work carried out to ensure the validity of the simulation model. The process of model verification is to determine the degree to which the simulation model is close to the simulation object. The current simulation is model-driven, and whether the model is valid or not directly determines whether the simulation is credible. [0003] There are generally two types of simulation model verification methods: qualitative and quantitative. Qualitative methods typically include the Turing test method, graphic comparison method, etc., which mainly judge the effectiveness of the simulation model subjectively based on the experience of experts. Quantitative methods usually use t...

Claims

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Application Information

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IPC IPC(8): G06T7/44
CPCG06T2207/10048
Inventor 洪泽华陆志沣张励苏颖谢锴赖鹏
Owner SHANGHAI INST OF ELECTROMECHANICAL ENG
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