Rohde & Schwarz SMW200A - Common Coding Algorithms

Configuring the Internal Baseband Source
R&S
®
SMW200A
295User Manual 1175.6632.02 ─ 16
FSK
MSK
1 bit per symbol
2FSK
1 bit per symbol
FSK deviation
4FSK
2 bit per symbol
FSK deviation
4.6.5.2 Common Coding Algorithms
In the notation used below, a
n
denotes the n
th
input symbol and b
n
denotes the corre-
spondingly coded output symbol. Individual bits in the symbols from the LSB (least sig-
nificant bit) to the MSB (most significant bit) are denoted by a
0n
, a
1n
, etc. The same
applies to the output symbols.
Common coding types are listed in Table 4-14.
Table 4-14: Common coding algorithms
Coding Coding algorithm Applicable for
K bit/symbol
Required option
"None" b
n
= a
n
k = 1...8 -
"Differential"
b
n
= (a
n
+ b
–1
) modulo 2
k
k = 1...7
"Differential + Gray" Gray coding with additional differential coding k = 1...7
Generating Custom Digital Modulated Signals