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二次雷达原始信号是1个面向比特的速率为9.6Kb/s的同步数据流。通常物理层采用V24(RS232)国际标准,数据链路层采用HDLC的帧结构。采用V24标准传输二
The primary radar signal is a bit-oriented synchronous data stream with a rate of 9.6 Kb / s. The physical layer is usually V24 (RS232) international standards, the data link layer using HDLC frame structure. Using V24 standard transmission two