This technique uses different time delay values of the LFM pulse to code the transmitted information, and uses time delay estimation technique to perform decoding.

该技术利用线性调频信号（LFM）矩形脉冲的时延值进行时延编码，在接收端采用时延估计技术进行时延解码。

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Tow base-band IJF pulse signal have been researched: the time-limited double-code rise cosine pulse and the time-limited double-code triangle pulse.

研究了两种基带IJ F脉冲信号：双码元间隔升余弦脉冲以及双码元间隔三角脉冲，并对它们的性能参数作了比较。

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Shannon would also contribute to the further development of pulse-code modulation (along with Bell alumni Bernard M Oliver and John R Pierce) at around the same time, using technology that eliminated some of the issues (such as complex circuitry) from the earlier, but conceptually similar, implementation from Briton Alec Reeves in 1938.

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