一、压码技术问题的提出在目前采用的脉冲通信方式中,语言处理经常采用增量调制.一般二值增量调制装置在无话音输入时,输出码流为101010……,有输入话音时,输出码有各种不同的连码出现. 许多场合要求发射机在无话音输入时不发射脉冲,这意味着要设法消除无话音输入时在增量调制输出端的101010…….有时甚至要求消除话音间歇时输出的101010…….特殊运用场合要求发射的脉冲数愈少愈好,这就是说在有话音输入时亦要设法减少发 First, the pressure code technology issues In the current pulse communication mode, the language processing often uses delta modulation. General binary incremental modulation device in the absence of voice input, the output stream is 101010 ... ..., there is input voice , The output code has a variety of different codes appearing Many occasions require the transmitter not to emit pulses when there is no speech input, which means trying to eliminate the 101010 at the incremental modulation output without speech input ... and sometimes even eliminate When the voice intermittent output 101010 ...... .... Special occasions require the launch of the pulse number as small as possible, which means that in the voice input should also try to reduce the hair