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Bi tp chng 1: Gii thiu chung

1. Trnh by cc m hnh knh truyn trong h thng truyn dn s?.

2. Trnh by cc phn t c bn ! cc th"m s h#u n$ng c%" h thng truyn dns?

Bi tp chng 2: M ha ngun&. Trnh by ph'ng php (#u ch) *ung m+ ,-?. T/nh tc (0 b/t (1t ('2c(# !3#

t/n h#u tho1# c4 d# tn t5 677 89 ()n 6:77 89 kh# th;c h#n m+ h4" ,-?,- nh' hnh ! b#)t r@ng An B chuC# mu (u !oD h=thng

khE# t1o t1# nF&D g# trG7H

7 =x

. 8=thng s dIng B'2ng t (u !3# s mJc B'2ng

t KF< ! khong B'2ng t

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L )u cc kU h#u ny ('2c m+ ho s"ng cc b#t nhG phSn dWng ph'ng php m+ho 8uaam"nD h+y th;c h#n u trnh m+ ho (4 ! cho b#)t h#u suXt b0 m+?

:. Trnh by U ngh" c%" t5 (#en m+ h4" trong m+ h4" nguRn f\mp\BL#!? dIngm+ h4" nguRn f\mp\BL#! th;c h#n m+ h4" chuC# nhG phSn

s"uZi777&77&777777&&7777&7777777&777777&7&7777&777777&&7&7777777&&jP. 0t t/n h#u t'ng t; c4 d1ngZ

x( t) 15cos( 1500t / 4) 25sin( 2500t / 5) = + + +

". Ac (Gnh khong th# g#"n cho php B3n nhXt g#l" cc *ung BXy mu B#n t#)p nh"u(e (m bo u trnh kh# phIc B1# t/n h#u B tt nhXt?

b. )u N b/t ('2c s dIng (e m+ h4" cho g# trG mC# m0t *ung BXy muD *c (Gnh tc(0 (u r" c%" BuRng dl B#u ny?

c. )u BuRng dl B#u ny ('2c pht u" knh nh#u c4 F

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[. T/nh h#u suXt c%" ph'ng php pht B1# th\o c ch) K d5ng ! ch choZL Tuy)n thng t#n ! t#nh. #)t khong cch t5 ! t#nh t3# mt (Xt B 6[777kmD !{n

tc truyn s4ng trong khng kh/ Bsm V&7.6 N

D tc (0 thng t#n B P[ |bps ! khungc4 k/ch th'3c :777 b#ts.

L Tuy)n cp trong m1ng f !3# khong cch g#l" h"# tr1m B &77mD !{n tc

truyn s4ng trn cp (Rng B sm V&7.< N

D tc (0 truyn thng t#n B &7 bps !khung c4 k/ch th'3c P77 b#ts.

x. -ho m+ ch{p c4 s (R m+ h4" nh' s"uZ

L Q s (R B'3# m+ ! g#n (R tr1ng th#?

L 8+y *c (Gnh dl B#u m+ h4" E (u r" b#)t chuC# dl B#u (u !o &7&7?

L M## m+ dl B#u thu ('2c B F &&&777&7&& dWng g## thu{t Q#t\rb#D (e tm dl B#ubn t#n b"n (u?

8. Ch ! kh"i tu#$n t%nh &'(3) c !a t*n G nh +au:

". Q#)t cc ph'ng trnh c%" b#t k#em tr"D cc t5 m+ m+ h4" E (u r"?b. Tm m" tr{n k#em tr" chn B 8?c. Ac (Gnh khong cch 8"mm#ng t# th#euD kh n$ng pht h#n ! s" BC#

c%" m+ trn?d. ASy d;ng bng u"n h D ?

O. -ho m+ 8"mm#ng]xD:^ !3#Z& & < 6

c m m m=

< < 6 :c m m m=

6 & < :c m m m=

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". Q s (R kh# b0 m+ h4" ! g## th/ch?

b. Tm t5 m+ m+ h4" t'ng Jng !3# chuC# bn t#n !o F _7 & & &`?

c. M## m+ chuC# t5 m+ thu ('2c F _7 & & & 7 & 7` th\o ph'ng php

yndrom\. |h n$ng pht h#n BC# ! s" BC# c%" m+ trn B g?

&7.-ho m+ ch{p ]6D&D

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". Tm m" tr{n s#nh ! m" tr{n k#em tr" chn B c%" m+ trnb. + trn c4 kh n$ng s" ('2c b"o nh#u BC# ?c. Q\ctor &7&7&7&7 c4 ph# B t5 m+ c%" m+ trn khng ?d. Q\ctor 7&7&&&77 c4 ph# B t5 m+ c%" m+ trn khng ?

&:. -ho m+ ch{p c4 cc (" thJc t1o m+ s"uZ

g1&,)F &**