I am decoding UBX-RXM-SFRBX to get the satellite ephemeris, but all I get is a bunch of invalid values. (For example, the preamble specified in the GPS ICD is not written, and the subframe ID is not a valid value, even though I decoded it without the Pad.) In this case, what ...
比如 u-blox5 协议的 RXM(0x02)下只有 ID(0x20)SVSI(卫星健康信息),发展到最新的 ublox8 协议 ,u-blox5 协议的 RXM(0x02) 下 ID 总共有 ALM/EPH/RAW/SFRB/PMREQ/RAWX/SFRBX/SVSI.其中原先的 RAW 只规 定了 GPS 的原始观测数据的输出,而最新扩展的 RAWX 则规定了所有 GNSS 卫 星的原始观测...
"Output rate of the UBX-RXM-SFRBX message on port I2C"), ("CFG-MSGOUT-UBX_RXM_SFRBX_SPI", 0x20910235, "U1", 1, "", "Output rate of the UBX-RXM-SFRBX message on port SPI"), ("CFG-MSGOUT-UBX_RXM_SFRBX_UART1", 0x20910232, "U1", 1, "", ...