pulse-spacing coding

The definition and method of coding and decoding of PPK are introduced and the general mathematics expression of coding and decoding of a k number of pulse PPK in the pulse position at m are provided in this paper.

给出了脉冲位置为m的k个脉冲PPK调制的编、译码通用数学表达式。

We analyzed the LED modulation and coding, the pulse position modulation ( PPM) and the multiple pulse position modulation ( MPPM) were compared in their reliability and validity.

分析了LED调制编码，并将单脉冲位置调制与多脉冲位置调制的可靠性和有效性进行了对比。

Including pulse modulation, random process, and errors in coding.

包括脉冲调制 、 随机过程 、 和差错编码等.

A speech recorder and player system based on 4kb/ s dispersed-pulse CELP ( DP-CELP) speech coding algorithm is being developed by Telecommunication and Signal Processing Lab in BJUT.

北京工业大学通信与信号处理研究室也正在开发一种基于4kb／s散布脉冲CELP（DP-CELP）语音编解码算法的DSP实时语音记录和回放系统。