This is the simplest differential method, and any GPS receiver can be modified and composed of this differential system. After observing four satellites, the GPS receiver installed on the referen...
Pseudometric difference is one of the most widely used techniques. Almost all commercial differential GPS receivers use this technique. The RTCM SC-104, recommended by the International Maritime R...
(1) The influence of GPS control part caused by human or computer Due to the problem of the GPS control part or the error introduced by the user during data processing. (2) The influence of data...
Cell-ID-based positioning technology: This technology is also known as Cell Of Origin positioning technology. Each cell has its own specific cell identification number (Cell-ID). When entering a c...
(1) Land application, mainly including vehicle navigation, emergency response, atmospheric physical observation, geophysical resource exploration, engineering measurement, deformation monitoring, ...
(1) SA Starting from its national interests, the U.S. government artificially reduces the accuracy of ordinary users using GPS for navigation and positioning by reducing the accuracy of broadcast...
(1) The GPS positioner of the plug -in power supply must be connected to the automotive power supply before it can work for 24 hours. Generally, it is impossible to use this product to track other...
1) SMS sending After entering the SMS center, click "Writing SMS", select the terminal name you need to send, fill in the text message content you need to send, and click "Send 2)...
The full name of GPS is the global satellite positioning system. It is developed in the United States since the 1970s. It lasted more than 20 years and costs $ 20 billion. It was completed in 1994...