IQ 2
I/Q IQ IQ IQ IQ 3
IQ 4
5
6
I Q 7
IQ 0 deg 8
IQ I QI I Q Q Q Q { I Q { I I 9
I/QI/QI/Q IQ IQ I/Q Q Σ I IQ I Q 10
I/Q I/Q I/Q IQ IQ 11
π 12
01 00 11 10 13
I/Q I QI I/Q IQ 14
π QI π I/QI Q IQ IQ π 15
Q I IQ IQ IQ IQ 16
IQ 17
18 π IQ IQ IQ IQ
I/Q Q I Q I IQ IQ IQ IQ I/Q IQ 19
π π π π π π π 20
21
IQ 1 0.5 h i 0 One symbol -10-5 0 5 10 t i 22
Nyquist Nyquist Nyquist 23
Ch1 LogMag 10 db/div GHz Hz α α α 1 0.8 0.6 0.4 α = 1.0 α = 0.5 α = 0.3 α = 0 0.2 0 0 0.2 0.4 0.6 0.8 1 α 24
α α = 0.75 α = 0.375 25
π 26
27
28
I/Q IQ IQ Q I π π 29
I/Q IQ IQ IQ I/QIQ IQ IQ I 30
I/Q 31
1 2 A A A B B B C C C A B C 3 T R T R 32
1 2 3 4 F1 1 2 3 4 F1' 33
π 34
I/Q I/Q IQ IQIQ IQ 35 A/D Mod I I Q Q IF RF
I AGC Q I Q D/A RF IF IQ IQ 10101010101010 36
IQ A Ofs 38.500000 sym 3.43 db 23.465 deg 100 uv I-Q 20 uv/div -100 uv t 37
f o π 38
I Q I/Q IQ n 2 n π 39
Q IQ { φ IQ) I π I/Q IQ 40
5 5 0 Sym 99 Sym 41
QI I/Q I Q 5 5 0 Sym 99 Sym 3 % 0 40 Sym 80 Sym 2 0 40 Sym 80 Sym 42
30 db% rms PI/4 Err V Spec 1 Mag (db) -120 825.962 MHz 826.038 MHz 30 db% rms PI/4 Err V Spec 1 Mag (db) -120 825.962 MHz 826.038 MHz 43
π π α α 44
π π α α 45
46
47 I/Q
5965-7160J 0000-00L/H