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We estimated the jitter of optical coherence tomography using a swept light source (SS-OCT) with methods of phase locking and Fourier transform. Phase locking could not be applied to estimating the jitter in fringe waveforms when there was a large dependence of voltage noise on time, but the dependence of jitter on local position could be estimated. We found that the Fourier transform could precisely...
The demand for noise reduction inside a vehicle has been recently increasing in the pursuit of improved ride comfort. In consideration of requirement of quietness improvement and reduction of weight, an active noise control (ANC) system has been attracting much attention. This method is effective for noise with low frequency. In this study, we propose an ANC system by using the vibration of giant...
This paper describes noise analysis for near-field intra-body communication, in which the human body is the transmission medium. In this type of communication system, the transmission line's impedance balance between the signal and the ground line is extremely degraded. Such a system is affected by large common-mode noise from various kinds of electronic equipment. Impedance balance deteriorates as...
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