| Project/Area Number |
08650455
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
情報通信工学
|
|---|
| Research Institution | THE INSTITUTE OF STATISTICAL MATHEMATICS |
|---|
Principal Investigator |
ISHIGURO Makio (1997) the Institute of Statistical Mathematics, Department of Prediction and Control, Professor, 予測制御研究系, 教授 (10000217)
瀧澤 由美 (1996) 統計数理研究所, 予測制御研究系, 助教授 (90280528)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
FUKASAWA Atsushi Chiba University, Faculties of Engineering, Professor, 工学部, 教授 (70292711)
TAKIZAWA Yumi the Institute of Statistical Mathematics, Department of Prediction and Control,, 予測制御研究系, 助教授 (90280528)
石黒 真木夫 統計数理研究所, 予測制御研究系, 教授 (10000217)
|
|---|
| Project Period (FY) |
1996 – 1997
|
| Project Status |
Completed (Fiscal Year 1997)
|
| Budget Amount *help |
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1997: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1996: ¥1,800,000 (Direct Cost: ¥1,800,000)
|
|---|
| Keywords | Nonstationary signal / Time-series analysis / Signal processing / Spectral analysis / 移動無線通信 / 脳波解析 |
|---|
| Research Abstract |
Most of observed signals in natural and social phenomena are nonstationary. However the conventional signal analysis methods are based on an assumption of stationary condition, so that the reliability of results brought by these methods are not satisfied for practical signals. On the other hand, high capability of signal analysis technique is required as bio-systems have flexibility and preciseness for detection, extraction, and analysis corresponding to nonstationary signals.
The researchers studied a novel approach to nonstationary phenomena based on the information contained in time-variations of signals, and proposed a new method for nonstationary processes supported by this Grant, The new analysis method applied to practical signals of bio-system including Electroencephalogram signal in human sleep. Considering modulation as one of nonstationary signals, the researchers studied also basic investigation of Spread Spectral (SS) modulation scheme and application to personal mobile communication services.
|
