The International Maritime Organization (IMO) adopted the following definition of e-Navigation: "e-Navigation is the harmonised collection, integration, exchange, presentation and analysis of maritime information onboard and ashore by electronic means to enhance berth to berth navigation and related services, for safety and security at sea and protection of the marine environment". A prerequisite for e-Navigation is a robust electronic positioning system, possibly with redundancy. A new radar technology emerged from the last International Association of Marine Aids to Navigation and Lighthouse Authorities-Association Internationale de Signalisation Maritime (IALA-AISM) conference held in Cape Town, March 2010, where almost all the manufactures companies involved in the navigation surveillance market presented, at various states of development, solid state products for Vessel Traffic Services (VTS) and Aids to Navigation indicating a new trend for this application. This paper presents an overview of the systems for global navigation and new trends for navigation aids. The expected developments in this field will also be briefly presented.