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In a satellite radio system, 128 stations of stereo quality are to be packaged in one data stream. For each station, two(left and right) signals of bandwidth 15,000 hz are sampled, quantized, and binary coded into PCM signals. The transmitter must multiplex the data from the 128 stations into a single stream via time multiplexing.
A: If the maximum acceptable quantization error in sample amplitudes is 0.25% of the peak signal voltage, find the minimum number of bits needed for a uniform quantizer.
B: If the sampling rate must be 20% higher than the Nyquist rate, find the minimum bit rate of the multiplexed data stream based on the quantizer of part(A).
C: If 5% more bits are added to the multiplexed data for error protection and synchronization, determine the minimum bandwidth needed to transmit the final data stream to receivers.
If the resistance path from the wall outlet end of the neutral wire to ground is 23ohm. what is the voltage of that point (relative to ground) if a 26 W compact fluorescent bulb is connected to the outlet
A regenerative gas turbine has compressor and turbine discharge temperatures of 350K and 700K respectively. Draw and label schematic and T-S diagrams showing the relevant states.
If you have 16 kibibytes of memory plus a few (less than 10) memory mapped devices (assume that each device uses 16 bytes of address space), what should the address size be
What are the impedances of an inductor and a capacitor (of any value) at a frequency of 0 Hz (DC) and at infinite frequency. Once we know what they are , how can this information help us in analyzing a circuit.
A rod on the surface of Jupiter's moon Callisto has a volume of 0.3 cubic meters. Determine the weight of the rod in units of pounds-force. The desnity is 4,700 kilograms per cubic meter. Gravitational acceleration on Calisto is 1.25 meters per se..
(a) Design a simple PNP current source to give an output current of IO = 0.5 mA (nominal value). The transistor parameters are f = 50, VEE = 10 V, VCC = 10V, |VBE| = 0.7 V, |VCEsat| = 0.3 V and VA = 50 V (for all transistors)
On a breadboards, hook up an IR LED to provide an infrared light source for signaling the phototransistor as shown in Figure 2 below. Use a pushbutton switch to turn the IR LED on and off.
A conducting sphere in free space has a radius of a= 10cm. the capacitance of the isolated sphere is C= 4oa. now let's coat the sphere with a dielectric with fr= 3, and the thickness of the dielectric layer is d.
Suppose the field to be imaged contains 3 parallel bars of width W mm, spread nonuniformly, with the darkness profile. Determine the darkness profile of the bars after imaging. Can you still tell all the bars apart
A motor's shaft is spinning at a speed of 1800 r/min. What is the shaft speed in radians per second
The HL pair of 8085 microprocessor is loaded with 0505 H. The HL Pair is decremented to 000 H. Which flag will be affected (A)Z flag (B)C flag (C)No flag is affected (D)P flag 1.In a 8-bit Microcomputer having 8k bytes of RAM Memory,the length of sta..
A 415V to 11 kV transformer has a rating of 200 kVA. The winding resistance and leakage reactance when referred to the primary are 0.014 and 0.057 ohms respectively.
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