China's Beidou system (Beidou-3) is both credible and reliable

Our Beidou system, independently developed by China, is both credible and reliable, and is our golden key to guard the integrity of our national independence and sovereignty!
 

Unreliability: Let's start with the unreliability of GPS. The United States holds the power of life and death of GPS users around the world, and once the United States shuts down GPS, missiles around the world will lose their direction. Nowadays, except for China and Russia, all other countries in the world are using GPS for guidance, which is equivalent to controlling one's own lifeblood in the hands of others, and may be constrained at any time.

Unbelievable: again, the Galileo system is unbelievable. 2019, the Galileo navigation system had a downtime event, interrupting service for 117 hours. 2020, Galileo satellites had a sudden anomaly, the broadcast time of some satellites jumped irregularly, and the whole anomaly lasted for about 3 hours. The stability of the European Galileo navigation system is currently being questioned.

Both credible and reliable: On the one hand, China's Beidou-3 system, which was fully deployed in June 2020, is both credible and reliable. In terms of accuracy, BeiDou is the only constellation that uses three orbits in conjunction with medium circular, geostationary and geosynchronous orbits, so that at least 12 satellites can be kept visible in the Asia-Pacific region almost permanently, dramatically improving positioning accuracy in the region. In terms of reliability, BeiDou uses tri-frequency signals, which is conducive to improving the resistance to ionospheric interference, improving the reliability of positioning. gps is still using dual-frequency signals, GPS satellites are all replaced by tri-frequency satellites will take several years.

On the other hand, in terms of military application, according to the analysis of military experts, such as the Dongfeng-21 medium and long-range cruise missiles, if only relying on its own inertial guidance and radar tracking and searching, its error will be more than one kilometer, to ensure that the target is destroyed, it is necessary to use more missiles, the implementation of the saturation strike, but the cost is high. After the addition of the Beidou navigation system, its accuracy can be increased to 10 to 30 meters, when the lethality of a satellite-guided missile can be comparable to that of 20 conventional missiles.

    In conclusion: the completion of the deployment of the Beidou global system constellation is one of China's most successful scientific and technological achievements in 2020, and an important asset in guarding our national security.