信号检测估计理论与识别技术习题参考答案.pdfVIP

1tt

2-1E[x(t)]，R(t,t)12

2X123

2-2略。

2-3

111

E[x(t)]sintcost

333

1111111

R(t,t)sintcostsintcostsin(tt)cos(tt)

X12991919292912912

2

2-4E[X(t)]0，R(t,t)cosw

0

a2



2-5E[X(t)]0，R(t,t)cosw

20

2-6略。

1

0

2-7E[X(t)]0，R(t,t)2

00

10

2-8R()R()R()2cos(10)(2e1)，

XXX

12

E[X2(t)]R(0)5，2R(0)2

XXX

11



jwjw

2-9G(w)R()edcoswed

X2X2o







P(w)(ww)(ww)

X2020

a

2-10G(w)(G(ww)G(ww))

Y2X0X0

1111

