pcm signal meaning in Chinese
脉码灯信号
Examples
- At the receiving end , a inverse process is performed . the system receives low rate data and the fpga reorganizes a frame of data which is decoded by the compression chip every 20 ms . the obtained pcm signal is performed d / a to restore the analog speech signal
在收端进行相反的过程，接收低码率数据，并由fpga重新组帧，送至主芯片解码得到pcm信号，再作d / a变换，恢复出模拟语音，系统是全双工的。 - The system adopts an advanced specific speech compression chip based on ambe algorithm . it can achieve high compression rate at 4 kb / s . the system first performs a / d conversion on analog speech input to obtain pcm signal and the pcm signal was encoded by the main compression chip
它采用了比较先进的基于ambe算法的专用语音压缩编/解码芯片，压缩率高，可以将数字语音信号码率压缩至4kb / s ,且编码速率可通过修改控制程序选择。 - In this paper , the method of in - bore abnormal phenomenon remote detecting is presented . considering of the multi - channel transient signals automatic acquisition , a project of pcm signal hardwire transmission data automatic acquire system is put forward . in this system , a pcm demodulate board is designed , it can decode the pcm code string which contain the information of the multi - channel transient signals , it also can catch the useful data automatically , and transmit these data to upper pc by rs485
在该系统中，为了能够解调出包含多路动态信号数据的高码速率pcm信号，设计并制作了一种适用的pcm解调板，能够从pcm码流中恢复出位时钟信号，从而与发送端保持位同步和帧同步，从而对pcm码流可靠地解调、缓存，并能根据计算机设定的触发条件自动地捕获多路信号的有效段，然后利用rs485总线将这些数据可靠地远传至计算机以供显示、分析和保存。