April 2011, 6th National GIS Symposium in Saudi Arabia
24-26 April, Khobar, Saudi Arabia, www.saudigis.org

The USA moves ahead with GPS III.
China takes a leap forward with five satellites of COMPASS last year.
And promises four more this year.
GALILEO appears for a compromise of 18 satellites as of now.
And Japan assures of a steady progress with MICHIBIKI in place.
GLONASS suffers a massive setback with of loss of three satellites.
But the zeal continues with GLONASS K in place.
Many such voices were made and heard.
At recently held Munich Satellite Navigation Summit in Germany.
And also was heard.
A loud silence on Indian Regional Navigation Satellite System.

Whenever there is a need for continuous navigation, radio-technical systems are usually integrated with inertial navigation systems (INS) or dead-reckoning systems (DR). Due to large dimensions and power consumption, as well as high prices, INS systems have been traditionally applied in high-end or military applications. Recently an unprecedented decrease of all the above mentioned factors have been witnessed, making inertial navigation suitable for a wider set of applications. However, the dead-reckoning method is still the preferred choice in low-cost land navigation systems.

The Indian Naval Hydrographic Department, with its rich traditions in the field of hydrography, wide ranging experience, a good infrastructure coupled with an excellent Human Resource, has the entire requisite wherewithal to be ranked amongst the best in the world. This has not happened overnight; the initial foundations have been laid by our predecessors and we who man and run the department now have been blessed by a good beginning. In the last five years, we have only added on to its already established stature.

March 2011
International Hydrographic Seminar
3 – 4 March
Delhi, India
www.hydrobharatnic.in/HYDROIND_2011.htm

GEOFORM-2011
15-18 March
Moscow, EcoCentre Sokolniki
www.geoexpo.ru/defaulteng.stm

In the so called Tri-Valley Universityí in California, USA.
Students were allegedly duped and framed.
Now, tagged with GPS ankle-bracelets.
By the officials of Immigration and Customs Enforcement.
Why so?

In a modern mobile mapping system, the navigation component usually consists of a GPS receiver and an inertial navigation system (INS), which can provide accurate geo-referencing to the imaging sensors [1][2]. To achieve centimetre-level positioning accuracy, RTK-GPS is a natural choice. However, RTK-GPS in urban areas suffers from frequent outages due to blockages of either the GPS signals or the reference station radio links. In addition, multipath from buildings, trees and heavy vehicles could degrade the accuracy of the GPS when the vehicle is near them.

GNSS and the GNSS market.
Indicates significant growth.
And immense potential,
In different and emerging application segments
In the world that is developed
And also, that is developing.
The technology is setting a stage.
To change our lives.
In the decade,
That, apparently, belongs to GNSS.
Assuming requisite ingredients
remain available.
May all of us have a happy year 2011.

 
February 2011
 

ILMF 2011

7 – 9 February2011

New Orleans, LO, USA

www.lidarmap.org/ILMF.aspx

16 International Geodatic Week

13- 19 February 2011

Obergurgl, Austria

www.geodaesie.uibk.ac.at/obergurgl.html

 
March 2011
 

The Munich Satellite Navigation Summit 2011

1-3 March

Munich, Germany

www.munich-satellite-navigation-summit.org

GEOFORM-2011

15-18 March

Moscow, EcoCentre Sokolniki

www.geoexpo.ru/defaulteng.stm

 
April 2011
 

6th National GIS Symposium in Saudi Arabia

24-26 April

Khobar, Saudi Arabia

www.saudigis.org

Geo- Siberia 2011

27-29 April

Novosibirsk, Russia

www.geosiberia.sibfair.ru/eng/

 
May 2011
 

ASPRS 2011

1 – 5 May

Milwaukee, Wisconsin, USA

www.asprs.org/milwaukee2011/

Gi4DM 2011

3 – 8 May

Istanbul, Turkey

www.gi4dm.org

FIG Working …

A metric, Vulnerability Index Against Spoofing, is proposed and used to assess the effectiveness of a spoofer. The GNSS (Global Navigation Satellite System) positioning is known to be vulnerable to interference due to the long distance of radio-signal travel and the resulting low signal power. In the presence of interferences or spoofing, the GNSS navigation performance is likely to be degraded and the navigation function may even be incapacitated. Throughout the years, many GNSS interference mitigation techniques have been developed.