GB/T 39414.4-2020
ActiveInterface specification for signal in space of BeiDou navigation satellite system—Part 4: Open service signal B3I
北斗卫星导航系统空间信号接口规范 第4部分：公开服务信号B3I
Application Summary AI generated
This standard defines the technical specifications for the B3I open service signal transmitted by BeiDou navigation satellites, including signal structure, modulation parameters, and data frame formats. It is applied in the design, testing, and integration of BeiDou receivers and navigation equipment used in aviation, maritime, and land transportation systems. The standard ensures interoperability and performance consistency for civilian users relying on the B3I signal for positioning, navigation, and timing services.
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