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扩展伪随机编码可以解决高重频激光测距在目标距离远时带来的距离模糊问题,但其编码方式多样。研究了不同激光源发射重频下,不同幅度编码方式对测距准确性的影响,并使用Matlab进行仿真。理论研究与仿真结果表明随着重频的提高,最优编码中“1”的概率从1逐渐趋近于1/2,1/2码的随机性最好,探测效率高,在时依然具有明显的峰值。在实际测距应用中,根据不同的重频选择合适的编码方式,可以优化测距算法,提高测距效率。
Extending pseudo-random codes can solve the ambiguity of distance caused by high-repetition laser ranging when the target distance is far away, but its coding method is diverse. The effect of different amplitude coding modes on the accuracy of ranging is studied under the repetition rate of different laser sources and simulated by Matlab. The theoretical research and simulation results show that with the increase of repetition rate, the probability of “1 ” in the optimal coding approaches 1/2 gradually from 1, and the randomness of 1/2 code is the best, the detection efficiency is high, Has a significant peak. In the actual ranging applications, according to different re-select the appropriate encoding, you can optimize the ranging algorithm to improve the range efficiency.