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提出了一种无人机载光电吊舱在高误码率信道条件下操控指令传输策略。该传输策略通过连续重传机制保证了操控指令传输的可靠性,并依靠序号标记机制避免了重复响应。在误码率为0.01的情况下,操控指令数据包长度由20字节减少到10字节,可以将丢包率由0.85减小为0.65,正确接收一个数据包平均所需要的最少传输次数由8次大幅减少到3次。采用该传输策略保证了光电吊舱对操控指令的正确接收,降低了操控延迟,避免了重复响应。
An unmanned airborne pod is proposed to control the command transmission strategy under the condition of high bit error rate channel. The transmission strategy ensures the reliability of the transmission of the control instruction through the continuous retransmission mechanism and avoids the repetitive response by the sequence number marking mechanism. In the case of bit error rate of 0.01, the length of the control instruction packet is reduced from 20 bytes to 10 bytes, the packet loss rate can be reduced from 0.85 to 0.65, and the average number of transmissions required for correctly receiving a data packet is from 8 times significantly reduced to 3 times. The transmission strategy ensures that the optoelectronic pod receives the control instructions correctly, reduces the control delay and avoids repetitive responses.