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Digital Arithmetic
book

Digital Arithmetic

by Miloš D. Ercegovac, Tomás Lang
September 2003
Intermediate to advanced content levelIntermediate to advanced
709 pages
26h 51m
English
Morgan Kaufmann
Content preview from Digital Arithmetic
612
CNAPTER I~
CORDIC Algorithm and Implementations
X[j]
l
I SHIFTER ~--
1
X[j+I]
Add/sub module includes
conditional complementer
Y[j] Z[j]
I SHIFER ~
Y[j+I]
I TABLE
~--
I
Z[j +
II
rsign(Z[j +
11) in rotation
cJj+] = "~Lsign(Y[j
+ 11) in vectoring
F ! G U R E 11 .= Implementation of one iteration.
The resulting iteration, called a CORDIC microrotation, 6 is
x[j +
1] -- x[j] -
ajZ-Jy[j]
y[j +
1] --
y[j] + aj2-Jx[j]
z[j +
1] -- z[j] - aj tan-I(2 -j)
11.12
An implementation of one iteration is as shown in Figure 11.2. It consists of
shifters and adders and a table to contain the angles tan-](2-J). The signals
sign(Y) ...
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Publisher Resources

ISBN: 9781558607989