Unambiguous Processing Techniques of Binary Offset Carrier Modulated Signals - Global Navigation Satellite Systems: Signal,Theory and Applications - page 70

complexity of the chip shape increases as the BOC-modulation order is raised. For M = or

higher, the optimum local SCS waveform is hard to obtain by geometrical intuition. Figure
12, 13, and 14 show the envelop of

4

R ,

R and the SCF for M = , 4, 6, respectively. 2

B/L

9
5

5
3

1

0 T c 0 0 T c

T c

(a) (b) (c)
Fig. 11. Optimum Local SCS Waveforms for (a) M =2, (b) M =4, (c) M =6

1.2

|R B ( τ )|
|R B/L ( τ )|
SC F

1

(a) M=2

0.8

0.6

0.4

0.2

0

-0.2

-1 -0 . 5 0 0.5 1

Code Delay (Chips)

Fig. 12. The Envelops of

R ,

R and the SCF for M =2

B/L

1

(b) M=4

0. 5

0

-0. 5

-1 -0 . 5 0 0.5 1

Code Delay(Chips)

Fig. 13. The Envelops of

R ,

R and the SCF for M =4

B/L

1

(c ) M=6

0. 5

0

-0.5

-1 -0. 5 0 0.5 1

Code Delay(Chips)

Fig. 14. The Envelops of

R ,

R and the SCF for M =6

B/L