2013һʦרҵ̹ʵͨ磩5？通信与广电工程专业

1.΢ߵĻΪ桢빦ʽǡȥźפȡ

ࣺɷΪмվƵתվƵԴתվԴתվ

3)ΪϵͳվҲܿվ

ġSDH΢豸

1עԴ蹤̽ƷȨ蹤̽УδȨתءӡתʽʹãѾȨģӦȨΧʹãұעԴ蹤̽Υߣ׷䷨Ρ

2.ͬͺͲʽ

2)Խ䴫IJֻȫòڸվͨ߼(DDF)ֱͨ

4.мվָ΢·м䣬ûϡ»·ܵվ

SDH΢ĵƾǽSDHͨƵƷķʽ΢زƵϣȻ󾭹ŴȴͳȥʵԶĴ䡣

1)Խ䴫IJֻȫòڸվͨ豸(ADM)ϡҵ

λãߺŻƵ뼰ŻƵӿ֮;

1)ͨ񡣼ϵͳN+1õ£վҪһòSTM-1źŻ򲿷֧·òSTM-1תӻϡҵ

ת֮ƷζͬƷĹ۵ʵԡý塢վתʹãȨϵԸΡ

SDH΢豸Ҫֵ·ɣƵơ(Ƶƽ);΢շŻ;άͲò(OAMP)

SDH΢мͨϵͳ

2.·վҲ˫նվ΢·м䡣ã

ھ޿ռдĵŲһֺᲨ糡ʸEųǿʸHͲĴ֮䣬ഹֱõ糡ǿʸEı仯Ųı仯Ųڿռ䴫ʱ糡ǿʸEķȷĹɣΪŲļν߼糡ǿʸEһǶȷIJ糡ǿȷֱڵʱ˵粨ͳΪֱ;糡ǿȷƽڵʱ˵粨ͳΪˮƽ

1.նվ΢·˻֧·յ㡣ɷŦվÿһ˵Ҳһնվվϡȫ֧·źżʹȺ·䱸SDH΢豸SDH豸Ϊϵͳļмվվ

2)һΪϵͳվ

һڷײ((2GHz)ͬߣײ((4GHzƵ)ʲòߣϵͳַΪԲϵͳԲϵͳ;βϵͳ

3.աŲ·ϵͳ

õΪߣ·ϵͳ֮ӲֳΪϵͳ

Ųյص߽(պССһֹ)ͨ͵ߵջ

2ΪѼתأߺͳڱƷ漰Ȩģ뱾վϵվʵȷϺᾡԴ

һ£΢վڲշߺͶನߣҪ΢ϵͳ˺ջ΢źŵ߼΢źŵ⣬мķ·ϵͳȡ

ĿǰSDH΢64QAM128QAMĵƼ豸256QAMƼ

ƵơҪɹ/źŵı任ֻźŴƵơȹܡ

΢աŻҪƵ΢źżı任/±Ƶ΢͹żռּյҪ·

һSDH΢ͨϵͳɶվ·վŦվмվɡһ΢ͨϵͳһһòһһϵòɣN+l

3ϵʽ/4008105999

ߺͷ·ϵͳ

ãǽͬźŷֿ

SDH΢һֻмվмվյѵźŽоתһĵվϲõ豸ֻװ΢ͨ豸վ乫ֵعܡ

ϵͳлܷڡӲ˳ת迹任Ȳ

3.Ŧվָλ΢·ϣͨŷվã

άͲòOAMPڶSDH΢ϵͳܻάͲá

һSDH΢