Radar speed measurement AI algorithm
A technology of radar speed measurement and radar speed measurement instrument, which is used in measurement devices, fluid speed measurement, radio wave measurement systems, etc., can solve the problems of error, high volatility of accuracy and low reflectivity error, so as to reduce errors and improve accuracy. The effect of improving the accuracy and
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Embodiment 1
[0040] Example 1, see figure 1 , figure 2 , a radar speed measurement AI algorithm, comprising the following steps:
[0041] S1. Data acquisition: the data collected by the radar velocimeter is related to the flow velocity of a certain range of the canal surface or the river surface. The sampled data includes the measurement distance R, the fluid cross-sectional streamline velocity of the sampling point, and the scanning angle θ of the sampling point. According to the measurement distance R, the calculation formula is: Reversely calculate the distance between the installation position of the radar speedometer and the current liquid surface, and measure the streamline velocity of a certain fluid section corresponding to the installation height through the radar speedometer;
[0042] S2. Characteristic data extraction: Carry out correlation and characteristic extraction of a large amount of sampled data, and find the data with the highest degree of correlation; corresponding...
Embodiment 2
[0053] Embodiment 2. This embodiment is further optimized on the basis of Embodiment 1. After the above steps S1 to S5, the radar speedometer collects the streamline velocity of a certain fluid section, and extracts the characteristic data, data preprocessing, The fluid model is solved and optimized, and the real flow data is obtained. In order to evaluate the accuracy of the obtained flow data, before outputting the flow data, the evaluation is carried out by evaluating the flow data of the model. The evaluation model formula is:
[0054] or
[0055]
[0056] f is a function, sigma means multinomial addition, H or Q is an unknown number, H i or Q i It is to find the maximum value of this polynomial through the current two values calculated by the flow model in step S5, and obtain an H value or Q value to obtain the preprocessing value of the evaluation model. This is the measured data without other interference factors a theoretical value of . The evaluation model i...
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