发射部分采用最先进的频率合成技术，发射频率稳定。
The emission part adopts the most advanced frequencies synthetic technique, having stable emission frequency.
在超声波发射部分创新性的使用MAX232芯片，缩小盲区；
MAX232 was used innovatively in Ultrasonic transmitter and blind spots were reduced .
本文介绍一种超宽带无线接入技术的特点和接收、发射部分的基本结构。
The paper introduces the characteristics and the structure of receiving and sending of UWB wireless access technology.
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