Development of real time signal processing device by statistical processing of self-coupled signal

2016 Fiscal Year Final Research Report

• Project/Area Number: 26420397
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Measurement engineering
• Research Institution: Aichi Institute of Technology
• Principal Investigator: Tsuda Norio 愛知工業大学, 工学部, 教授 (20278229)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 自己結合効果 / リアルタイム処理 / レーザー距離計測 / 端子間電圧変化

Outline of Final Research Achievements

We have studied self-coupled signal, which was treated as return light noise of semiconductor laser (LD). The self-coupled signal includes white Gaussian noise (WGN), and this signal has a large amount of data. The self-coupled signals has been analysis using FFT, the equipment is expensive and takes time to process signals. Therefore, we newly proposed a method of statistically processing self-coupled signals. This method can process self-coupled signals at high speed and at low cost. Distance measurement was performed using this method. As an application of signal processing of self-coupled signals, we also worked on signal processing of laser microphones and succeeded in extracting audio signals from within low S/N signals.

Free Research Field

レーザー計測