One of the main requirements coming from different clients is to add an "anti-theft alarm" function to our gps trackers, which will trigger the loud BEEP BEEP alarm whenever the motorcyc...
1) E5 frequency band: the frequency range is 1164-1215 MHz, including E5a and E5b, each frequency band contains two signals, the modulation mode is AltBOC(15, 10), the code rate is 10.23 MHz, and ...
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...
The geodesic receiver achieves high accuracy (10-6 ~ 10-8) in static baseline measurements using GPS satellite carrier phase. However, in order to reliably solve the phase ambiguity, stationary ob...
(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...