1i}. Consider the binary sequence b =[1 U {)1 ]. Let the bit rate Rb be '1 kbps and let the peak amplitude of all digital modulated waveforms be set to 'l 'v'. a}. Sketch the ASK waveform representing the binary sequence b using a carrier frequency of 5 kHz. b}. Sketch the F'SK waveform representing the binary sequence b using a carrier frequency of 5 kHz. c}. Let the mark and space frequencies used by an FSK modulator be set to 3 and 6 kHz, respectively. Sketch the resulting FSK waveform representing the binary sequence b. ii}. Sketch the power spectral density function for each of the modulated signals in Question 1. iii}. If an ASK signal is applied to the input of a coherent detector shown in Fig. 4.1. sketch the waveforms at the output of each block. bit svnc Fig. 4.1 Coherent Detector