With the development of science and technology, the technology level has been continuously improved, and the positioning system has gradually been widely used. What are the benefits of installing ...
In urban transportation management, electric vehicles are difficult groups. Compared with cars, electric vehicle models are smaller and lower. For urban transportation with severe traffic jams tod...
Relative to cars, electric vehicle motorcycles have become preferred for residents in the city with price advantages and travel advantages. There is no need to worry about the most common parking ...
In the late 0th century, China began to explore the development path of satellite navigation system suitable for national conditions, and gradually formed a three -step development strategy: The ...
In recent years, in order to further enhance the competitiveness of GPS in the global civil navigation market, the US government has put forward new requirements. UU. It has decided to make import...
As mentioned earlier, the working frequency of the GPS signal is divided into several frequency bands, such as L1, L2, and L5: Frequency band L1: 1575.42MHz 1.023MHz L2 frequency band: 1227.60M...
High code rate can improve accuracy The Code rate of L1 is very low, and the time it takes for each encoding is about 10 by 6 seconds. Of course, these signals are transmitted at the speed of lig...
If there is only L1 signal, L1 will be sent directly when answering the call. In fact, L1 may have reflected in the atmosphere, and the refraction will cause some delays. This delay in the atmosph...
The car positioner is also known as a car positioning tracker, which is mainly a car anti -theft GPS positioning product. The functions of car positioning trackers generally include SMS positionin...
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