您好,欢迎访问三七文档
当前位置:首页 > 高等教育 > 习题/试题 > 上海大学-通信原理期末试卷1
20052006____________4___________________________TF22212345678910112.FDM4.2FSK2bit/s.Hz7.8.2PSK2ASK9.TSTTS=kT(k)10.11.318234561-2V-1V1V2V1/81/41/81/2A2.25B1.75C1D22ABCD3SSBFM604kHzFM400KHzA640KHzB880kHzC1040kHzD1280kHz42V0VA0VB1VC2VD-2V52DPSKA2DPSKB2DPSK2PSKC2DPSK2PSKD2DPSK2PSK61500HzA3000bit/sB2000bit/sC1000bit/sD500bit/s5kHz100kHz10KW20dBPn(f)=0.1h10ÿ3W/Hz10kHzSNRiSNRO0H()10.50-00/2-0/2-30/2(t)R()=(t)(t)(1)(t)(2)O(t)RO()(3)O(t)PO()1(t)O(t)Rb=100bit/sFSK1100Hz1200Hz0.05V50¡n0=kT0kk=1.38h10-23JK-17 (1)BT(2)BR(3)PeGT()GC()GR()°¯°®dZSZZZZ024)()(CCRTWWCOSGG)(1)(ffGCZZGT()GR()GC()H()83000bit/sWC4TF2221234567891011TTTFFTTFFTT31823456BADBDB(1)(2)502100)(22101.010102)()(1001010000331020uuuuuu iiiniiiNSSNRWfPBNWS(3)100)(5.041)(502110025022uu?OOOiOiOiODSBNSSNRWNNWSSSNRSNRG(1)00)()(2?ffaRaG(2)H(f)f95KHz105KHz-105KHz-95KHz@@)1()1()(2)1()1()(2)1()1()()1()1()()()()()()()1()()(WGWGWG[[W[[W[[W[[W[[W[[[RRRttttttttEttERtttOOOO(3)ZZZZZWWGWWZZWWGWGWGWWZ cos221)()()(1)(1)()()(cos222)]1()1()(2[)()(22 ³³³³jiOjjjijjjjOOeHPPeHdedeRPeededeRP°¯°®d?024)()()()()(2CCRCTWWCOSHGGGHSZZZZZZZ1210222121212NNCNCC)(1000)1()(5002)(10008log3000log2222max22maxmax?fWWfHzffHzRfMRRCCNBNbBSSZD(1))(300200110012002)(1002log100log12001100122221HzfffBBMRfHzfHzfsTbs(2))(2002)(1002log100log22HzfBBMRfsRbs(3)821923017262102.82123.31)(10004.82901038.1200)(105.2502)1005.0(2 uuuuuuuureiiRiiePNSrWkTBNWRaS
本文标题:上海大学-通信原理期末试卷1
链接地址:https://www.777doc.com/doc-5489076 .html