With the increasingly serious tasks of the judicial organs to maintain social order and combat criminal crimes, the number of criminals being detained, receiving education, and reforming through l...
About forty years ago, the U.S. military began the development of what is known as the Global Positioning System (GPS). Now, in the medium-earth orbit about 20,000 kilometers above our head, the G...
"In fact, satellites are equivalent to the news tree in the past. When a tree is planted on a high ground, when a Japanese devil comes, people will pull the tree down, and everyone on the oth...
GPS system consists of three parts: space part, control part and user part. The space part is a general term for GPS satellites. The average height of the artificial satellite is about 20200Km, t...
The positioning accuracy can be investigated under static and dynamic conditions, and the effect of dynamic positioning is better than that of static positioning. The nominal positioning parameter...
GLOBAL Positioning System, referred to as GPS, that is, global satellite positioning system, has been widely used in recent years, and has generated considerable demand for GPS products. And with ...
When it comes to positioning accuracy, we have to talk about SA and AS. What is SA, AS? GPS signals have two types of C/A codes and P codes. The error of C/A code is 29.3m to 2.93m. Common rece...
1. Composition of GPS system GPS gloabal Positioning System, which is built in the United States. It is mainly divided into three parts, the control station on the ground, the satellites flying i...
There are many kinds of GPS products, but it is not necessarily all good with three generations of chips. The three generations of chips are just GPS The core components of the product, like the ...
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