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Analysis of CNR and BER for QPSK satellite linkA satellite data transmission system transmits data from two T1 carriers as a single 3.088 Mbps bit stream using QPSK. The satellite link uses ideal RRC filters with Rolloff = 0.25. At the receiving terminal the clear air value of overall (CNR)o is 16.0 dB and the implementation margin of the QPSK demodulator is 1 dB.
a. What is the bandwidth occupied by this signal, and the noise bandwidth of the receiver for this signal?
b. Find the BER at the receiver output and the average time between errors.
c. Rain affects the downlink from the satellite and the overall CNR in the receiver falls by 6.0 dB to 10.0 dB. What is the bit error rate and time between errors now?
Murray Loop Test and Locating Faults, Q.1 (a) Using the Murray Loop test, determine the distance to an earth fault on one of the cores of a uniform three-core underground cable. Ra = 2 ohms, Rb = 1 ohm
A signal is modulated by BPSK and transmitted over an AWGN channel. At the receiver, the bit error rate performance is 0.001
The main mission of this project is to design and build a tap changer which is going to be fitted to power transformers for regulation of the output voltage to required levels for the Micro Grid. The tap changer system will consist of 9 changers with..
Addition of two numbers in IEEE 754 format A) a=3f200000, b=be600000 B) a=3f200000, b=ff800000 C) a=01100000, b=80e00000
Explain the function of the HMI in a SCADA system.
Do either or both of the reasons you gave in part (a) above also apply to a point to point voice link using frequency modulation? c. Which parameter of an FM transmission determines whether it is wideband or narrow band?
Calculating peak frequency deviation and Carson's rule bandwidth, A baseband signal has a frequency range from 50 Hz to 15.0 kHz. The signal is transmitted using frequency modulation. The FM transmitter has a modulation constant of 100 kHz per vol..
The purpose of this project is to design a device that would remotely control (from a Bluetooth-enabled mobile phone for instance) at least two actuators (e.g. relays and switches).
A sequential circuit has two inputs w 1 and w 2 , and an output, z. Derive a suitable circuit for the given condition.
AC Analysis Gain at Midband (with bypass capacitor in circuit) Connect the bypass capacitor using the switch.
Evaluating Coding Gain, CNR, and BER of a DSSS-CDMA Transmitter, a. A DSSS-CDMA transmitter sends message signals at a rate of 5.0 kbps using a long chip sequence with a rate of 1 M chips per second. In the receiver, what is the processing gain (a..
Determine a suitable sampling frequency. Design a notch filter to remove the 50Hz component, paying particular attention to any assumptions you have made in the design.
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