Problem 1: Generate a random binary PAM transmit signal of -1 and + 1 volts of length 100. Simulate the transmit signal being sent over a channel with AWGN with an Eb/No of 3 dB. Plot the received signal constellation using a red o to represent when a logical O was sent and a blue * to represent a logical 1 was sent Is the result what you expected?

9) This QUESTION FROM Information theory course. just write for me the the correct answer.

Fora standard SSBSC carrier AM, the peak unmodulated carrier peak voltage is 10 V for a load resistance of 10 ohms and modulation index of 1. What will be the total transmitted power?

Q4 please answer base on your observation.

Explain frequency hopping acquisition scheme using a simple PN sequence. Assume that the length of PN sequence is 15 and the number of frequency hopping levels is 8

Plz complete solution or leave it hanging.

Consider a CDMA system where transmitter A has the code 101010 and transmitter B has the code 111001. Assume that 1 is represented by +1V and 0 is represented by -1V. Show that the two CDMA codes (after mapping them to voltages) are orthogonal to each other. What is transmitted if A sends a bit of 0 and B sends a bit of 1? What did A and B most likely transmit if the received word is "-1 -1 -1 +1 +1 +1"?

41. Noise is typically narrow spikes of voltage with high frequencies.Group of answer choices True False 42. SCA signal can be transmitted at 67-kHz subcarrier.Group of answer choices True False 43. In FM, as the modulating signal amplitude increases, carrier frequency also increases proportionately.Group of answer choices True False 44. The greater the amplitude of the modulating signal, the higher the frequency deviation rate.Group of answer choices True False 45. With no modulation, the carrier frequency will shift above or below its normal frequency.Group of answer choices True False 46. The higher the frequency of the modulating signal, the greater the frequency deviation of the carrier signal.Group of answer choices True False

A speech signal has frequencies in the range 50- 3500 Hz. The signal is sampled at Nyquist sampling rate and the resulting pulses are transmitted over PAM and PCM systems. 1- Calculate the minimum bandwidth of the PAM system. 2- Calculate the minimum bandwidth of the PCM system, when the pulses are quantized into 121 levels B) Draw the signaling waveform (line codes) for the binary sequence 10110001 using (Unipolar NRZ, Bipolar RZ, Bipolar NRZ, Manchester code, Differential Manchester (split phase).

Twelve (12) signals each band-limited to 5 kHz are to be transmitted over a single channel by frequency division multiplexing. If AM-SSNB modulation guard band of 1 kHz I used, determine the bandwidth of the multiplexed signal.

Please help with parts B4 and B5 of this practice question. Thank you

6. The original electrical information signal to be transmitted is called * Modulating Signal Carrier Baseband Signal Source Signal 7. The Process of modifying a high frequency carrier with the information to be transmitted is called * Multiplexing Telemetry Detection Modulation

Problem 2. Based on the figure below, which represents the spectrum of a DSB-LC signal, find the following. P(@) -1200 -1100 -1000 -900 -800 800 900 1000 1100 1200 (a) What is the carrier and message signal frequencies in rad/sec. (b) Find the value of modulation index. (c) What is the message signal m(t). (d) Sketch the modulated signal in time domain p(t) and label the maximum and minimum of the waveform. (e) Calculate the average power for both the carrier (P) and side bands (P). (f) Find the modulation efficiency (u)