Shulou(Shulou.com)11/24 Report--

CTOnews.com, May 29, Japan's "guide" satellite navigation system currently has four satellites, which need to be used with GPS of the United States to provide high-precision navigation services to Japan.

The Japanese government's Space Policy Committee has announced an upgrade plan to "guide" from the current four satellites to 11, including blocked areas of high-rise buildings and mountains, to obtain 24-hour positioning data without relying on the US GPS, the Nikkei News reported. In addition, the upgrade will also be beneficial to industrial applications such as the development of self-driving related services.

▲ Japan "guide" satellite rendering, the source Mitsubishi Electric Japan "guide" the first satellite was launched by the Japanese H2A rocket in 2010, and then launched a number of satellites. By 2018, Guild will be in the form of four current satellites, which can operate 24 hours a day in combination with GPS in the United States.

Reported that the "guide" upgrade plan is expected to be adopted at the cabinet meeting in the summer of 2023, and the goal of Japan's Universe Policy Committee is to increase the number of "guide" operations to 7-11.

Suzuki, a professor at the University of Tokyo who is a member of the Universe Policy Committee, explained: "from the point of view of fighting for the budget, the satellite will be increased in stages. In the current four forms, "leading the way" can only play a role in assisting the GPS of the United States. After reaching 7, it can be located through an independent system without relying on GPS. However, the obscured part of the building is still difficult to receive satellite signals, and the accuracy is low. If it is increased to 11, it can basically cover the sheltered areas, including mountains and high-rise buildings. "

However, the draft plan does not propose a time to reach the target of 11.

According to previous reports by CTOnews.com, China's Beidou navigation system has launched 56 satellites to form a global coverage satellite navigation service. For the time being, Japan's "guide" is only for domestic regional navigation, so 11 is indeed enough, but we don't know when it will be realized.

▲ China's "Beidou" satellite navigation system

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