5.30.kiran.ps

是multiuser detection 这本书的习题解答, 很有用的书.

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D E end
%%EndProlog
%%BeginSetup
%%Feature: *Resolution 300dpi
TeXDict begin

%%EndSetup
%%Page: 1 1
1 0 bop Black Black 73 25 a Fi(Solution)18 b(to)h(Problem)e(5.30)h(b)n
(y)h(Kiran.)734 265 y Fh(R)c Fg(=)837 150 y Ff(2)837
238 y(6)837 270 y(4)910 192 y Fg(1)61 b Fh(\032)1020
199 y Fe(12)1099 192 y Fh(\032)1124 199 y Fe(13)891 268
y Fh(\032)916 275 y Fe(12)1014 268 y Fg(1)g Fh(\032)1124
275 y Fe(23)891 343 y Fh(\032)916 350 y Fe(13)995 343
y Fh(\032)1020 350 y Fe(23)1118 343 y Fg(1)1183 150 y
Ff(3)1183 238 y(7)1183 270 y(5)781 533 y Fh(R)818 540
y Fe(1)851 533 y Fg(=)903 448 y Ff(")972 498 y Fg(1)g
Fh(\032)1082 505 y Fe(23)953 573 y Fh(\032)978 580 y
Fe(23)1076 573 y Fg(1)1140 448 y Ff(#)645 771 y Fh(R)682
751 y Fd(\000)p Fe(1)682 784 y(1)744 771 y Fg(=)862 738
y(1)p 800 760 148 2 v 800 806 a(1)12 b Fc(\000)f Fh(\032)911
788 y Fe(2)911 818 y(23)961 686 y Ff(")1050 736 y Fg(1)80
b Fc(\000)p Fh(\032)1218 743 y Fe(23)1011 812 y Fc(\000)p
Fh(\032)1075 819 y Fe(23)1192 812 y Fg(1)1276 686 y Ff(#)838
1010 y Fh(a)864 1017 y Fe(1)898 1010 y Fg(=)949 925 y
Ff(")999 975 y Fh(\032)1024 982 y Fe(12)999 1050 y Fh(\032)1024
1057 y Fe(13)1082 925 y Ff(#)73 1147 y Fg(Therefore,)419
1357 y Fh(P)457 1336 y Fb(d)450 1369 y(k)477 1357 y Fg(\()p
Fh(\033)r Fg(\))14 b(=)f Fh(Q)657 1271 y Ff( )702 1323
y Fh(A)739 1330 y Fb(k)p 702 1345 58 2 v 716 1391 a Fh(\033)765
1266 y Ff(s)p 814 1266 678 2 v 819 1323 a Fg(1)f Fc(\000)f
Fh(\032)930 1306 y Fe(2)930 1335 y(23)978 1323 y Fc(\000)g
Fh(\032)1053 1306 y Fe(2)1053 1335 y(12)1102 1323 y Fc(\000)f
Fh(\032)1176 1306 y Fe(2)1176 1335 y(13)1225 1323 y Fc(\000)h
Fg(2)p Fh(\032)1324 1330 y Fe(12)1362 1323 y Fh(\032)1387
1330 y Fe(13)1424 1323 y Fh(\032)1449 1330 y Fe(23)p
819 1345 668 2 v 1079 1391 a Fg(1)h Fc(\000)e Fh(\032)1189
1374 y Fe(2)1189 1403 y(23)1492 1271 y Ff(!)73 1493 y
Fg(If)16 b(w)o(e)g(let)f Fh(\032)289 1500 y Fe(12)341
1493 y Fg(=)e Fc(\000)p Fh(\032)456 1500 y Fe(13)507
1493 y Fg(=)h Fh(\032)584 1500 y Fe(1)604 1493 y Fg(,)i(then,)319
1680 y Fh(P)357 1659 y Fb(c)350 1692 y Fe(1)374 1680
y Fg(\()p Fh(\033)r Fg(\))d(=)512 1646 y(1)p 512 1668
25 2 v 512 1714 a(4)550 1609 y Ff(\024)576 1680 y Fg(2)p
Fh(Q)647 1609 y Ff(\022)689 1646 y Fh(A)p 689 1668 37
2 v 693 1714 a(\033)731 1609 y Ff(\023)778 1680 y Fg(+)e
Fh(Q)874 1609 y Ff(\022)916 1646 y Fh(A)p 916 1668 V
920 1714 a(\033)957 1680 y Fg(\(1)h(+)f(2)p Fh(\032)1110
1687 y Fe(1)1130 1680 y Fg(\))1149 1609 y Ff(\023)1197
1680 y Fg(+)g Fh(Q)1293 1609 y Ff(\022)1334 1646 y Fh(A)p
1334 1668 V 1338 1714 a(\033)1376 1680 y Fg(\(1)g Fc(\000)g
Fg(2)p Fh(\032)1529 1687 y Fe(1)1550 1680 y Fg(\))1569
1609 y Ff(\023)o(\025)73 1801 y Fg(Among)k(all)g(the)h(terms,)e(the)i
(one)g(that)g(con)o(tributes)f(most)g(to)i(error)e(is)h(one)g(of)g(the)
g(last)g(t)o(w)o(o)g(terms)0 1877 y(dep)q(ending)d(on)f(whether)h
Fh(\032)503 1884 y Fe(1)535 1877 y Fg(is)f(p)q(ositiv)o(e)g(or)g
(negativ)o(e.)20 b(Since)11 b(the)h(error)h(dep)q(ends)f(only)h(on)f
(the)h(absolute)0 1952 y(v)m(alue)18 b(of)g Fh(\032)210
1959 y Fe(1)230 1952 y Fg(,)g(b)q(eing)g(symmetri)o(c,)d(w)o(e)j(can)g
(drop)g(the)g(absolute)g(v)m(alue)g(constrain)o(t.)26
b(Since)18 b Fh(\032)1744 1959 y Fe(1)1780 1952 y Fh(<)1840
1932 y Fe(1)p 1840 1940 18 2 v 1840 1969 a(2)1862 1952
y Fg(,)g(w)o(e)0 2027 y(ha)o(v)o(e)i(that)i(\(1)15 b
Fc(\000)f Fg(2)p Fh(\032)388 2034 y Fe(1)408 2027 y Fg(\))22
b Fh(>)g Fg(0.)36 b(Therefore,)22 b(comparing)e(the)h(argumen)o(ts)f
(of)i(the)f(Q)g(functions)g(of)g(the)0 2102 y(decorrelator)16
b(and)h(the)f(last)h(one)f(in)g(the)g(matc)o(hed)f(\014lter)g(receiv)o
(er,)f(w)o(e)i(ha)o(v)o(e)f(that)i(the)f(matc)o(hed)f(\014lter)0
2178 y(receiv)o(er)f(p)q(erforms)h(b)q(etter)h(than)h(the)f
(decorrelator)g(alw)o(a)o(ys)g(if,)352 2231 y Ff(s)p
401 2231 678 2 v 406 2288 a Fg(1)c Fc(\000)f Fh(\032)517
2271 y Fe(2)517 2300 y(23)565 2288 y Fc(\000)g Fh(\032)640
2271 y Fe(2)640 2300 y(12)689 2288 y Fc(\000)f Fh(\032)763
2271 y Fe(2)763 2300 y(13)812 2288 y Fc(\000)h Fg(2)p
Fh(\032)911 2295 y Fe(12)949 2288 y Fh(\032)974 2295
y Fe(13)1011 2288 y Fh(\032)1036 2295 y Fe(23)p 406 2310
668 2 v 666 2356 a Fg(1)h Fc(\000)e Fh(\032)776 2338
y Fe(2)776 2368 y(23)1120 2321 y Fc(\024)42 b Fg(\(1)11
b Fc(\000)g Fg(2)p Fh(\032)1354 2328 y Fe(1)1374 2321
y Fg(\))411 2437 y(1)h Fc(\000)f Fh(\032)522 2417 y Fe(2)522
2449 y(23)570 2437 y Fc(\000)g Fh(\032)645 2417 y Fe(2)645
2449 y(12)694 2437 y Fc(\000)f Fh(\032)768 2417 y Fe(2)768
2449 y(13)817 2437 y Fc(\000)h Fg(2)p Fh(\032)916 2444
y Fe(12)954 2437 y Fh(\032)979 2444 y Fe(13)1016 2437
y Fh(\032)1041 2444 y Fe(23)1120 2437 y Fc(\024)42 b
Fg(\(1)11 b Fc(\000)g Fg(2)p Fh(\032)1354 2444 y Fe(1)1374
2437 y Fg(\))1393 2417 y Fe(2)1413 2437 y Fg(\(1)g Fc(\000)g
Fh(\032)1542 2417 y Fe(2)1542 2449 y(23)1579 2437 y Fg(\))p
Black Black eop
%%Page: 2 2
2 1 bop Black Black 0 25 a Fg(This)16 b(is)g(exact)o(y)g(the)g(\014rst)
g(condition)g(giv)o(en,)818 128 y(2)11 b Fc(\000)g Fg(2)p
Fh(\032)952 110 y Fe(2)952 140 y(23)p 757 150 295 2 v
757 196 a Fg(3)g(+)g Fh(\032)866 203 y Fe(23)915 196
y Fc(\000)f Fg(2)p Fh(\032)1013 178 y Fe(2)1013 208 y(23)1070
161 y Fh(<)k Fc(j)p Fh(\032)1161 168 y Fe(12)1913 287
y Fa(2)p Black Black eop
%%Trailer
end
userdict /end-hook known{end-hook}if
%%EOF