CN106548232A - The new network structure and parameter identification method of RBF AR models - Google Patents
The new network structure and parameter identification method of RBF AR models Download PDFInfo
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Abstract
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Claims (6)
- The new network structure of 1.RBF-AR models and parameter identification method, comprise the steps:1) noisy data are modeled using RBF-AR models;2) according to the RBF-AR models design feature of itself, a kind of novel broad sense RBF nets for containing two hidden layers are converted thereof into Network;3) RBF-AR models are set up(Broad sense RBF network)State of self-organization spatial model;4) impact for primary condition and man made noise's statistical property to parameter identification precision, proposes one kind with parameter most Optimized initial value and driving parameter noise statisticses are estimated as the adaptive particle filter algorithm of core;5) above-mentioned adaptive particle filter algorithm is used in the parameter identification of RBF-AR models, and the identification with SNPOM methods As a result contrasted.
- 2. the new network structure and parameter identification method of the RBF-AR models according to claim l, it is characterised in that:Institute State step 1) in, the RBF-AR models of noisy data are represented by:Wherein,To export,It is state vector, is made up of output variable,It is the order of model, For the center of RBF networks,For scale factor,It is linear power Weight,Represent vectorial 2 normal form;Generally, in above-mentioned RBF-AR models forIndividual different regression variable coefficient, the center of RBF networks may It is different;But in the application of some reality, in order to mitigate calculating intensity, all of RBF networks have allowed identical center, due to The difference of linear weight in RBF networks, the autoregressive coefficient in above-mentioned RBF-AR models are also just different.
- 3. the new network configuration and parameter identification method of the RBF-AR models according to claim l, it is characterised in that:Institute State step 2) in, RBF-AR modelsIndividual RBF networks all have identical center, and the Center Number of each RBF network For;Therefore, can be by RBF-AR model conversions into a kind of novel broad sense RBF networks for containing two hidden layers and an output node(See figure 1);Two hidden layers of novel broad sense RBF networks have respectivelyIndividual hidden node(Center)WithIndividual hidden node.
- 4. the new network structure and parameter identification method of the RBF-AR models according to claim l, it is characterised in that:Institute State step 3) in, in order to recognize to RBF-AR models using adaptive particle filter algorithm, choose RBF-AR unknown-models Center and act temporarily as state variable, i.e.,(,;,), model exports the observation as wave filter, sets up following state of self-organization space Model:Wherein, original state, stochastic errorWithFor separate Gaussian Profile, i.e.,,,。
- 5. the new network structure and parameter identification method of the RBF-AR models according to claim l, it is characterised in that:Institute State step 4) in, as parameter identification precision is severely limited by parameter original stateAnd parameter perturbation itemThe shadow of variance Ring, develop a kind of adaptive particle filter that core is estimated as with parameter optimization initial value and parameter perturbation noise statisticses Algorithm.
- 6. the new network structure and parameter identification method of the RBF-AR models according to claim l, it is characterised in that:Institute State step 5) in, adaptive particle filter algorithm is applied in the parameter identification of RBF-AR models, and with SNPOM parameter Estimations Method is contrasted at the aspect such as estimated accuracy and time.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107608712A (en) * | 2017-10-27 | 2018-01-19 | 北京小米移动软件有限公司 | Method for edition management and device |
CN108964969A (en) * | 2018-05-07 | 2018-12-07 | 中国铁路总公司 | The high-speed railway signal system method for predicting of hybrid neural networks and AR model |
CN109059911A (en) * | 2018-07-31 | 2018-12-21 | 太原理工大学 | A kind of GNSS, INS and barometrical data fusion method |
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2016
- 2016-11-11 CN CN201610992237.1A patent/CN106548232A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107608712A (en) * | 2017-10-27 | 2018-01-19 | 北京小米移动软件有限公司 | Method for edition management and device |
CN108964969A (en) * | 2018-05-07 | 2018-12-07 | 中国铁路总公司 | The high-speed railway signal system method for predicting of hybrid neural networks and AR model |
CN108964969B (en) * | 2018-05-07 | 2021-12-07 | 中国铁路总公司 | High-speed railway signal system flow prediction method based on hybrid neural network and AR model |
CN109059911A (en) * | 2018-07-31 | 2018-12-21 | 太原理工大学 | A kind of GNSS, INS and barometrical data fusion method |
CN109059911B (en) * | 2018-07-31 | 2021-08-13 | 太原理工大学 | Data fusion method of GNSS, INS and barometer |
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Inventor after: Xi Yanhui Inventor after: Zhao Ting Inventor after: Zhang Xiaodong Inventor after: Peng Hui Inventor after: Xiao Hui Inventor after: Li Zewen Inventor before: Xi Yanhui Inventor before: Zhao Ting Inventor before: Zhang Xiaodong Inventor before: Peng Hui Inventor before: Xiao Hui Inventor before: Li Zewen |
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Application publication date: 20170329 |