Method for balancing accuracy and calculated amount of multifunctional sensor signal reconstruction

A sensor signal, reconstruction accuracy technology, applied in the field of sensors, can solve problems such as the influence of unresearched parameter identification calculation amount

Inactive Publication Date: 2013-06-26
XIAMEN UNIV
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However, this paper only studies the influence of the optimized parameters on the signal reconstruct...

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  • Method for balancing accuracy and calculated amount of multifunctional sensor signal reconstruction
  • Method for balancing accuracy and calculated amount of multifunctional sensor signal reconstruction
  • Method for balancing accuracy and calculated amount of multifunctional sensor signal reconstruction

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Embodiment Construction

[0055] The invention aims at the multifunctional sensor signal reconstruction method based on B-spline and extended Kalman filter, and realizes the balance between the reconstruction accuracy and the calculation amount. The basic principle of the balance algorithm is as follows figure 1 As shown in , the optimized object is the node vector dimension of the B-spline model in the reconstruction algorithm. For a multi-input B-spline model, each input corresponds to a knot vector, and the balance algorithm optimizes all the knot vector dimensions simultaneously. When the dimensions of all node vectors are determined, the B-spline model is also determined, so that the number of multiplication operations required for the reconstruction of the model and the minimum mean square error (MSE) that can be obtained can be obtained accordingly ), so that these two parameters can be used to further calculate the value of the fitness function. With the fitness function, the genetic algorith...

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Abstract

The invention discloses a method for balancing the accuracy and calculated amount of multifunctional sensor signal reconstruction, which relates to sensors. The method is used for balancing the accuracy and calculated amount of the existing multifunctional sensor signal reconstruction method based on B-spline and extend kalman filtering, and designed for achieving an effect that a balanced signal reconstruction method can ensure the accuracy, and the calculated amount is relatively low. The accuracy and calculated amount of the multifunctional sensor signal reconstruction are quantified by respectively using a minimum mean square error and the number of multiplication operation times; a fitness function is designed by using the two parameters; and the structure of a B-spline is optimized by using a genetic algorithm, so that the fitness function is minimum so as to realize the balancing on the accuracy and calculated amount of the signal reconstruction. According to the invention, the calculated amount required in the process of signal reconstruction can be greatly reduced on the basis of ensuring a high accuracy, and the method disclosed by the invention also can be applied to other multifunctional sensor signal reconstruction methods.

Description

technical field [0001] The invention relates to a sensor, in particular to a method for balancing the reconstruction accuracy and calculation amount of a multifunctional sensor signal. Background technique [0002] Multifunctional sensor is a sensor that can measure multiple physical quantities at the same time, which is one of the main development trends of modern sensing technology. With the development of multifunctional sensors, the corresponding signal reconstruction methods must be studied. At present, although there are many signal reconstruction methods suitable for multifunctional sensors, there are few methods that can guarantee the reconstruction accuracy and can be used on smart chips, and the reconstruction methods based on B-spline and Kalman filter is one of them. However, at present, the selection of the B-spline model structure in this method is generally done manually without corresponding algorithm guidance, so that a large amount of unnecessary calculat...

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Application Information

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IPC IPC(8): G06F17/15
Inventor 王昕魏国孙金玮范贤光许英杰
Owner XIAMEN UNIV
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