Mumbai University > Electronics and Telecommunication Engineering > Sem 6 > Data Communication

Marks: 10 Marks

Year: Dec 2016

Binary Frequency Shift Keying (BFSK)

• FSK is treated as non-linear modulation since information is put into the frequency.

Time domain representation:

The transmitted signal can be represented as:

$$s_i(t)=\bigg\{^{\sqrt{\dfrac{2T_b}{T_b}}\cos(2 \pi f_il), 0\lt1\le T_b} _{0,\hspace{2cm} elsewhere}$$

• S1(t) represents symbol “1”.
• S2(t) represents symbol “0”.

$$f_1=f_c+\dfrac{1}{2T_b} \ \ \ \ f_2=f_c-\dfrac{1}{2T_b}$$

The …