井下数字移动通信语音编码的选择和语音通信的设计实现

3((),,100083),,,CVSDCMX639CVSDCMX63931(863):(No12005AA133070);2([2006]634,[2006]549),,:868871MHzTDMA,38kbps,1,TI16MSP430900MHz1,;,,,1113:,[1](1),,,,,,,1216kbps,,,(2),,(LPC)2kbps,400bps,,418kbps,(3),416kbps,43416kbps(PCM)(M)(ADPCM)(SBC)(ATC)(TDHS),,(MPE-LPC)(RPE-LPC)(CELP)1121,1,(32kbps)(41816kbps)(214kbps),,,,;,;,,,,,,,,,,,,,[2]:(1),;(2),;(3);(4);(5),;(6),,1/kbps/ms/MOSPCM(G711)644131ADPCM(G722)3241110M,CVSD32318011M,CVSD16310011LD-CELP16241010SBC-ADPCM167219212RPE-LTP1330315410CELP83531710CELP4183531050100LPC-1021435215101CVSDMOS310,,,,10-2,,2CVSD,CMX639CMX6398128kbps[3],CVSDMC3418CMX639,CMX6398kbpsMC341816kbps,,8kbpsCVSDTDDTDMA2,,80kbps,8kbps2TDMA15454512512235125125125124433420074,,1,MIC31CMX639,CVSD,,,,,01CMX639,CMX639,3ENCODERIN,ENCODEROUT,DECODERIN,DECODEROUTSPEAKERCVSDCVSD,CVSDCVSD10,,CVSD,,MSP430,,CVSD2CMX639:[1]1[J]1()11997,9,Vol117(3)[2]11[D]1:(),2003[3]MXCOM,INC()1CMX639DATABULLE2TIN,2002()(31),(3),,,,,,,,,,,4,,,(1),,(2),,,,,(3),,,,,,,,()54