| Project/Area Number |
23650035
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Computer system/Network
|
|---|
| Research Institution | National Institute of Informatics |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2011 – 2012
|
| Project Status |
Completed (Fiscal Year 2012)
|
| Budget Amount *help |
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
|
|---|
| Keywords | モバイルネットワーク技術 / 無線測位 / 屋内測位 / 確率的情報処理 / デジタル信号処理 / 無線LAN / 電波計測 / 光学計測 / アッベ限界 / 信号処理 |
|---|
| Research Abstract |
In this study we pursued a study on indoor localization of a mobile wireless equipment. As usually only a narrow frequency band of is assigned for the communication of such a mobile device, there is an inherent limitation of the achievable localization precision when we use the narrow communication band for the localization. In this study we tried a stochastic approach instead of the common Euclidean technology for object positioning to overcome the limitation. For testing high precision signal processing we conducted the experiment using wireless ultrasound communication and achieved a 60dB equivalent SNR by filtering the signal with the phase-only filter which fulfills the first defined goal
|
