i need part C only, please do it fast (I'll upvote for true solution)

QB1 You need to redraw the diagrams in Figure QB1 on you answer sheet to answer the question QB1(c). (a) The waveform of a pulse wave is illustrated below. The pulse duration t = 1ms and the period T = 4 ms. pulse width t Period T What is the fundamental angular frequency? Show the expression of the n-th harmonic frequency component of the pulse wave. Sketch the spectral distribution of the pulse wave and label the frequency of zero crossing. (10 Marks) (b) A digital coded transmission system uses a cyclic code generator of x + x? + x5 + x3 + x + 1 for error detection. The digital data to be encoded is 1000 1011 1001, which is 12-bit temperature data provided by an analogue to digital (ADC) converter. Using the generator determine the transmitted cyclic code. (10 Marks) Please illustrate your answers to question QB1 (c) below by redrawing the waveforms in Figure QB1 on your answer sheet. (c) Illustrate in the time-domain the PSK and FSK waveforms in Figure QB2, where the first two bits in Non-return-to-zero (NRZ) have been sketched. Assume the baseband data is 01011010 at a bit rate of 16kbps and is modulated with the carrier. (1) Let the mark (HIGH) and space (LOW) frequencies used by an FSK modulator be set to 64kHz and 32kHz, respectively. Sketch the resulting FSK waveform representing the bit stream in Figure QB1. (5 Marks) (II) If the carrier frequency is 16kHz, sketch the PSK waveform representing the bit stream in Figure QB1. (5 Marks) 0 1 0 1 1 0 1 0 1 NRZ time FSK PSK Figure QB1 The bit stream and its modulations waveforms