随着脉冲编码调制技术的出现，把模拟信号转换为数字信号的原理得到广泛应用；
The principle of converting analog signals to digital signals bacame popular with the introduction of pulse code modulation ;
PP M脉冲位置调制通信技术作为一种新兴的通信技术，具有编码简单、能量传输效率高的优点。
As a new communication technology, PPM (pulse position modulation) technology can be easily coded, and has a high efficiency of energy transmission.
采用DSP技术产生混沌信号，再量化、编码成二值序列，用来调制uw B脉冲信号。
Chaotic sequences were generated, quantized and coded into binary sequences which were used for modulation of UWB signal based on DSP technology.
采用DSP技术产生混沌信号，再量化、编码成二值序列，用来调制uw B脉冲信号。
Chaotic sequences were generated, quantized and coded into binary sequences which were used for modulation of UWB signal based on DSP technology.
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