1、-j t-F()f(t)edtj t-1(t)F()ed2f12()sin(10)sin(20),()sin(10)()sin(20)()f tttf tt utt u t回目录2()f t1()f t回目录 j tFf t edt 12j tf tFedj te回目录1j te回目录()f t(,)()f tj te回目录1j tej te()t(,)()F()f t(,)()F()F回目录j te(,)j te回目录2()j te()t j tg t ej te j tgFf t g t edt gF回目录 ,j tGFf t g tedt ,f t gt dt,GF ,j tgtg te
2、 回目录 F,G F FG 1,2jGFFGed FG 回目录 2/412taagtea2212taea回目录 2412tjaaGeedta22212tjaaaedta221xaedxe21ae2ae回目录2()424jjjjj(,)()()e()e()1()e(e)21()e(e)21()e()()taxatatattGFdf t g tdt df tg td dtf tddtaf tdx dtaf tdtF (88)回目录2|()|f td21|(,)|2GFd d 回目录0 00,GFf t gt dt，0j tf t g tedt 0j tf t g tedt0j tf edt回目录
3、00ftf t g t回目录0 0,0 xGFf t gt dt，0jtf t g tedt 0jtf t eg tdt g tgt回目录 00,jtGFf t egt dt 0jtf t eg t,GF f t g t回目录 G00,t 202t g tdttg t 202GdG g 回目录 22g tg tdt 2212GGd 22,g tG g g t G 222022220211g tGttg tdtg tGdG g 回目录00,t 2g t g 002jtg tteg tg t 222g ttg tdt 22212GGd g tG 22222212g tGtg tdtGd 2212t
4、g tdtGd回目录 g tG gtG 2212gtdtGd 22222g tGtg tdtgtdt 2lim0tt g t回目录 12g tG 1124g tG fg tG g t G 42atg tea 2142aGea11444gGaa g t G回目录 F回目录 g t G g tG回目录 g t G回目录112stfF 回目录tf 1,2g tGtf tf 14tf tf 回目录()g t回目录()g t()G t回目录回目录()()f tF()F aa01a回目录tfa f t()()tfa F aaa,1()(),0a btbtaaa ,a bWf a bf tt dt 1tbf
5、 tdtaa,a bt,a bt 2,f ttLR ,21,a bdadbf twf a btca 2fLR,a bt回目录回目录回目录 2cd 2221,dadbf tdtwf a bca 回目录20|()|Cd 回目录 t ,wf a b 0ptt dt0pn 00ppdd t t0pn 回目录 0 10n 000回目录11,a b22,a b12121241212111,;,tbtbka a b bdtcaaaaK回目录k,Wf a b2,1,;,da dbWf a bWf a b ka a b baa,Wf a b回目录k12aa12bb回目录0jaa00mjbkb a01a 00b,
6、m nZ 2,000jjj ktaa tkb回目录002,1ab 2,22jjj kttk 2,22jjWTj kf ttk dt ,j kf tt dt ,1,4k tj z k zf tWTj ktC,j kt,WTj k回目录回目录(,)()201,HH回目录0H1H(0,)21H0H回目录()f n回目录回目录()f n(0)1()H j0()H j220V1()2W1V2(0)1()H j0()H j222()4 2W 2V4(0)1()H j0()H j223()8 4W 3(0)8V0()Gj()Sa x1()Gj回目录221()G j0()G j221()G j0()G j2V
7、1V221()G j0()G j()f n0V()f t回目录()f t()f t()x()t01112211,jjjVVW VVWVVWjZ 2limjjVLRj 2jj ZVLRjV回目录0V011221VVWVWW0jj ZVj 0jV jjVWjVjWjiWWijjW回目录jVjW012VVVab011122123jjVWVWWVWWWWVijjVjWjVjWjWiW回目录:0 2jjV11:0 2jjVj 0:0 VQ 中心频率带宽1W33422Q2W33824QjW回目录 jf tVjV12jtfV jf tV回目录jV jkt0V t,tkkZ tktm dtkm 1t dt0V
8、回目录 t0V 0kt 000kkkP f tft 000kkfP f tt dt 0kf tt dt 0P f t0V0V回目录1V 1P f t 1kt 111kkkP f tft 111kkfP f tt dt 1P f t 0kt 11kkff tt dt1V回目录1W0W1W112222ttkm dtkm t 0t dt 0kt2t 1kt0W1W t回目录1W 1D f t 1kt 111kkkD f tdt 111kkdD f tt dt 1D f t 11kkdf tt dt1W 1kt回目录(j)j()()kkdf tt dtjWj()D f t()jktjWj()2tj()kt(j)jj()()kkkD f tdt(j)jj()()kkdD f tt dtj()D f tjWjWj()kt回目录回目录
