Object information detection method and device
An information detection and object technology, applied in the detection field, can solve problems such as calculation errors or fluctuations, slow algorithm recursive process, missed detection, etc., and achieve the effect of not being easily disturbed and affected by noise, overcoming missed detection, and high detection accuracy
Active Publication Date: 2021-04-20
BEIJING JINGWEI HIRAIN TECH CO INC
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[0003] The current recursive least squares methods are all recursive least squares methods based on fixed forgetting factors. The forgetting factor set by the least squares method is large, which will make the recursive process of the algorithm slow, which may cause the algorithm to fail to detect the amount to be detected, and miss detection occurs. If the forgetting factor of the recursive least squares method is set small, it will make The algorithm is easily disturbed by noise and other factors, and calculation errors or fluctuations occur
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[0070] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0071] In order to overcome the shortcomings of information detection based on the recursive least squares method with a fixed forgetting factor in the prior art, the inventors of this case conducted in-depth research:
[0072] The idea in the initial stage is to use the recursive least squares method based on variable forgetting factors, and use errors as the input or condition to control the change of forgetting factors. This scheme can overcome the missed de...
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The present invention provides an object information detection method and device, which uses the recursive least squares method based on the variable forgetting factor to detect the information of the specified object, and controls the change of the forgetting factor based on the amount to be detected. On the one hand, the variable forgetting factor is used , can effectively detect the smaller amount to be detected or the amount to be detected with a shorter appearance time, and overcome the problems of missed detection and false detection caused by the fixed forgetting factor in the recursive least squares method in the prior art, another On the one hand, the forgetting factor is controlled based on the quantity to be detected, so that the method and detection device provided by the present invention can meet the requirements of detection situations where the quantity to be detected is discrete or has a specific meaning, the detection accuracy is high, and it is not easily affected by interference and noise.
Description
technical field [0001] The invention relates to the technical field of detection, in particular to an object information detection method and device. Background technique [0002] Recursive Least Square (RLS) is a parameter estimation method that can perform dynamic parameter estimation and has the advantages of good stability, fast convergence speed, and low data storage requirements. The recursive least squares method is widely used in the field of detection technology such as fault detection and parameter identification. [0003] The current recursive least squares methods are all recursive least squares methods based on fixed forgetting factors. The forgetting factor set by the least squares method is large, which will slow down the recursive process of the algorithm, which may cause the algorithm to fail to detect the amount to be detected, and miss detection. If the forgetting factor of the recursive least squares method is set small, it will make the Algorithms are ...
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IPC IPC(8): G01R31/385G01R31/367G01R31/36G01R31/52
CPCG01R31/3648G01R31/50
Inventor 张明轩
Owner BEIJING JINGWEI HIRAIN TECH CO INC