Performance evaluation of the effect of QZS (Quasi-zenith Satellite) on precise positioning: Nobuaki Kubo, Tomoko Shirair, Tomoji Takasu, Akio Yasuda, Satoshi Kogure;
Need for new services in land administration: András Osskó;
Analysis of integrated navigation with GPS source variability:Mahmoud Efatmaneshnik, Yong Li, Allison Kealy, Andrew G Dempster

Guidance and steering control systems that are now in widespread use by farmers for ploughing and cultivating the land with unprecedented accuracy, require centimetre-level position as well as attitude information accurate to a few degrees. Additionally, position and attitude update rate of no less than 10Hz is required for successful guidance in agricultural environments. Guidance and steering control systems rely particularly on heading and roll measurements to steer the tractor on parallel straight lines or curves known as plough lines.

A S (quasi-zenith satellite), which was anticipated to be the original Japanese positioning satellite, was launched in September, 2010. As an augmentation system of GNSS, two MTSATs had already been put into orbit and their main purpose is to broadcast the correction data for wide-area DGPS. This has actually improved the accuracy of wide area DGPS as a result of reception of the correction data from MSAS (MTSAT Satellite-based Augmentation System). The QZS also enhances the ranging function and it already has signal characteristics for the GNSS that are expected in the near future.

July 2011: Esa International Summer School on Navigation Satellite Systems 2011, 20 – 30 July, Berchtesgaden, Germany, Berchtesgaden, Germany, www.munich-satellie-navigation-summerschool.org

SOUTH releases new products: In an event held in New Delhi on June 2, 2011, South Precision instrument Pvt.,Ltd, India, launched and introduced the latest and upgraded portfolio of its products – MINI WINDOWS Total station NTS370R, GPS RKT S86T, S82T and Static GPS H66 to Indian customers in a.

EC furthers GMES operations: The European Commission (EC) signed an agreement with European Space Agency (ESA) to provide EUR 104 million fund for the initial operations of the Global Monitoring for Environment and Security programme (GMES). GMES will provide decision-makers with access to accurate and timely information services to manage the environment, understand and mitigate the effects of climate change, and ensure civil security.

Google Street view hits roadblock in India: Commissioner of Police of Bangalore in India has asked Google to stop photographing streets of Bangalore. However, before Street View cars started operating, Google claimed it took permission from the traffic department of Bangalore police. The police have reservations regarding legality of Google’s Street View in India.

Road lane recognition using a precise digital map and GNSS :Eunsung Lee, Giwook Nam, Jae-Ik Park, MoonBeom Heo, Wooyong Kang;
Cost effective GNSS positioning techniques : Neil D. Weston, Volker Schwieger ;
Geodesic based trajectories in navigation : ADAM WEINTRIT, Piotr Kopacz ;
Implementation of a Semi-Dynamic Datum in New Zealand :Don Grant, Graeme Blick

A precise digital map is needed to perform lane recognition using carrier-based GNSS position information.

The paper presents the current and uniform approaches to sailing calculations highlighting recent developments. We published the first part of the paper in May 11. Here we present the concluding part.