Multivariable Harmonic Balance for Central Pattern Generators.
Multivariable Harmonic Balance for Central Pattern Generators.
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DOI:
10.1016/j.automatica.2008.05.024
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发表时间:
2008-12-01
期刊:
影响因子:
6.4
通讯作者:
Iwasaki, Tetsuya
中科院分区:
文献类型:
--
作者:
Iwasaki, Tetsuya
The central pattern generator (CPG) is a nonlinear oscillator formed by a group of neurons, providing a fundamental control mechanism underlying rhythmic movements in animal locomotion. We consider a class of CPGs modeled by a set of interconnected identical neurons. Based on the idea of multivariable harmonic balance, we show how the oscillation profile is related to the connectivity matrix that specifies the architecture and strengths of the interconnections. Specifically, the frequency, amplitudes, and phases are essentially encoded in terms of a pair of eigenvalue and eigenvector. This basic principle is used to estimate the oscillation profile of a given CPG model. Moreover, a systematic method is proposed for designing a CPG-based nonlinear oscillator that achieves a prescribed oscillation profile.
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