WO2008069414A1 - Procédé d'analyse d'ondes de réflexion sur la base de l'impédance efficace - Google Patents
Procédé d'analyse d'ondes de réflexion sur la base de l'impédance efficace Download PDFInfo
- Publication number
- WO2008069414A1 WO2008069414A1 PCT/KR2007/004535 KR2007004535W WO2008069414A1 WO 2008069414 A1 WO2008069414 A1 WO 2008069414A1 KR 2007004535 W KR2007004535 W KR 2007004535W WO 2008069414 A1 WO2008069414 A1 WO 2008069414A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reflection
- equation
- impedance
- wave
- effective impedance
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 39
- 230000010287 polarization Effects 0.000 claims description 12
- 238000002310 reflectometry Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 description 14
- 239000013598 vector Substances 0.000 description 12
- 238000004364 calculation method Methods 0.000 description 8
- 238000009792 diffusion process Methods 0.000 description 6
- 230000001902 propagating effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 239000011365 complex material Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/391—Modelling the propagation channel
- H04B17/3912—Simulation models, e.g. distribution of spectral power density or received signal strength indicator [RSSI] for a given geographic region
Definitions
- a reflection wave is calculated by expressing the material of a wall surface of a building as impedance. If the wall is made of various materials, the wall must be divided into small pieces each made of the same material in order to form a modeling period with the same material for modeling. Accordingly, the computation amount increases.
- Equation 1 E and an overall magnetic field of the uniform medium reflection surface can be expressed as Equation 1 and Equation 2.
- Equation 1 and Equation 2 t denotes an entire field, i denotes an incidence field, and r denotes a reflection field.
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
L'invention concerne un procédé destiné à l'analyse d'une onde de réflexion sur la base de l'impédance efficace. Ce procédé consiste: a) à modéliser une surface de réflexion d'un bâtiment en deux dimensions; et b) à obtenir une onde de réflexion par diffusion d'une onde radio vers la surface de réflexion modélisée et à analyser l'onde de réflexion obtenue par uniformisation du milieu.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/517,801 US20100010760A1 (en) | 2006-12-05 | 2007-09-19 | Method of analyzing reflection waves using effective impedance |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20060122342 | 2006-12-05 | ||
KR10-2006-0122342 | 2006-12-05 | ||
KR10-2007-0052489 | 2007-05-30 | ||
KR1020070052489A KR100871446B1 (ko) | 2006-12-05 | 2007-05-30 | 유효 임피던스를 이용한 반사파 해석 방법 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008069414A1 true WO2008069414A1 (fr) | 2008-06-12 |
Family
ID=39492252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2007/004535 WO2008069414A1 (fr) | 2006-12-05 | 2007-09-19 | Procédé d'analyse d'ondes de réflexion sur la base de l'impédance efficace |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2008069414A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107276705A (zh) * | 2017-07-28 | 2017-10-20 | 中铁上海设计院集团有限公司 | 一种高速铁路隧道无线通信信道建模方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5471435A (en) * | 1994-05-13 | 1995-11-28 | Marshall Acoustics Pty., Ltd. | Method for acoustic/electromagnetic signal processing |
US6366858B1 (en) * | 2000-06-30 | 2002-04-02 | S. Mark Haugland | Method of and apparatus for independently determining the resistivity and/or dielectric constant of an earth formation |
US20050021019A1 (en) * | 2003-07-24 | 2005-01-27 | Dune Medical Devices Ltd. | Method and apparatus for examining a substance, particularly tissue, to characterize its type |
-
2007
- 2007-09-19 WO PCT/KR2007/004535 patent/WO2008069414A1/fr active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5471435A (en) * | 1994-05-13 | 1995-11-28 | Marshall Acoustics Pty., Ltd. | Method for acoustic/electromagnetic signal processing |
US6366858B1 (en) * | 2000-06-30 | 2002-04-02 | S. Mark Haugland | Method of and apparatus for independently determining the resistivity and/or dielectric constant of an earth formation |
US20050021019A1 (en) * | 2003-07-24 | 2005-01-27 | Dune Medical Devices Ltd. | Method and apparatus for examining a substance, particularly tissue, to characterize its type |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107276705A (zh) * | 2017-07-28 | 2017-10-20 | 中铁上海设计院集团有限公司 | 一种高速铁路隧道无线通信信道建模方法 |
CN107276705B (zh) * | 2017-07-28 | 2020-07-31 | 中铁上海设计院集团有限公司 | 一种高速铁路隧道无线通信信道建模方法 |
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