
Due to the characteristics of all-weather, high-precision and automatic
measurement of GPS technology, as an advanced measurement method and new
productivity, it has been integrated into various application fields of national
economic construction, national defense construction and social development.
With the end of the Cold War and the vigorous development of the global
economy, the US government announced that from 2000 to 2006, under the premise
that the US national security will not be threatened, the SA policy will be
cancelled, and the accuracy of GPS civil signals will be improved on a global
scale. The accuracy of single-point positioning with /A code is increased from
100 meters to 20 meters, which will further promote the application of GPS
technology, improve productivity, operational efficiency, scientific level and
people's quality of life, and stimulate the growth of the GPS market. According
to the forecast of relevant experts, in the United States, the market of car GPS
navigation system alone will reach 3 billion US dollars after 2000, and in my
country, the market of car navigation will also reach 5 billion yuan. It can be
seen that the application prospect of GPS technology market is very
impressive.
GPS Features
The main features of GPS are: (1) all-weather; (2) global coverage; (3)
high-precision three-dimensional fixed-speed timing; (4) fast, time-saving and
high-efficiency; (5) wide application and multi-function.
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