RFX144V24-S23 and RFX96V24-S23 Modem Designer’s Guide
4-8
1070
No. 14
Error Vector
Represents the difference between the received point (P2) and the nearest ideal point (P1).
Format:
16 bits, signed, twos complement, real
16 bits, signed, twos complement, imaginary
BOUNDARY
BOUNDARY
y
x
0
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11
P1
P2
P
1
= x
1
+ iy
1
P
2
= x
2
+ iy
2
P
2
- P
1
= (x
2
- x
1
) + i(y
2
- y
1
)
= REAL ERROR + IMAGINARY ERROR
1070F4-1a
ε
i
ε
R
ε
Error Vector Maximum Values
Configuration
Bit Rate
Registers 3 and 2
Real Error (Re)
Registers 1 and 0
Imaginary Error (Im)
Magnitude
√√
(Re2 + Im2)
V.29
9600
<0C00h
<0C00h
<0E66h
V.29
9200
<2400h
<2400h
<1AD4h
V.29
4800
<1C00h
<1C00h
<1C00h
V.27 ter
4800
<1C00h
<1C00h
<1C00h
V.27 ter
2400
<1C00h
<1C00h
<1C00h
Содержание RFX144V24-S23
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