閃光信号的語义干扰

SEMANTIC NOISE IN CODING FLASH LIGHT SIGNALS

問題 經济編碼和減少噪音是提高信息传递效率和保証通信准确性的重要手段。信息論关于編碼問題的研究,为充分利用信道容量和抗干扰提供了理論依据,对于通信技术的发展作出了重大貢献。但是,信息諭的編碼理論仅考虑信源的統計特点,而不考虑信号的意义。这样的編碼虽然适用于机器之間的信息传递和加工。

Three coding systems were designed for a comparative study of the semantic noise which may arise from coding different rates of speed by flash light with different frequencies. It was found that the most effective system is the one in which higher speed was coded by the flash light with higher frequency and lower speed by that with lower frequency. It was suggested that the advantage of this system was due tO its conformity with the subjects habit of thinking which has been established during his daily life.Reaction time and stimulus equivocation Hy(x), which has been taken as a measure of the semantic noise level, have been analyzed, and these two variables were found to be lineally related. The increase of reaction time was explained by the lengthening of decoding processes.