MANUAL FOR AN
INTRODUCTION TO
SONAR SYSTEMS
ENGINEERING, 2ND
EDITION BY
LAWRENCE J.
ZIOMEK (ALL
CHAPTERS)
, Chapter 1
SECTION 1.2
1-1 Verify (1.2-12) and (1.2-13).
r r0
2 2
r r0 2(r r0 )
Since r r , r0 r0 , and r rrˆ , then
r r0 r2 r 02 2r( rˆ• r0 )
r02
r 1 2 2
2 0
r r
r 1 b
r 2
rˆ• r
0 0
where b 2
r r
1
,1-2 Using Fig. P1-2, show that
u ,
v cos ,
and
w ,
where u , v , and w are dimensionless direction cosines with respect to the X , Y , and Z
axes, respectively.
Z
(r, , )
r
Y
X
Figure P1-2
2
, Z
r sin
(r, , )
r
Y
r sin
X
r r sin
r cos r cos
X X
r
r
u
3