The following table illustrates the operation of an FHSS system for one complete period of the PN sequence. Time Input data Frequency PN sequence 0 1 0 1 f 2 1 001 Time Input data Frequency PN sequence 3 fs 1 4 1 14 12 13 0 1 1 f 001 5 1 f23 fs 15 1 6 1 110 16 ele 7 0 f22 |f 17 0 8 9 0 0 18 1 001 fa f 19 0 a. The system makes use of a form of FSK. What form of FSK is it? b. What is the number of bits per signal element(symbol)? c. What is the number of FSK frequencies? d. What is the length of a PN sequence per hop? e. Is this a slow or fast FH system? f. What is the total number of possible carrier frequencies? g. Show the variation of the base, or demodulated, frequency with time. 10 1 011 f10 11 0