A common problem in over-the-air television signal transmission is multipath distortion of the received signal due to the transmitted signal bouncing off structures. Typically a strong “main” signal arrives at some time and a weaker “ghost” signal arrives later. So if the transmitted signal is x t (t), the received signal is
(a) What is the frequency response of this communication channel?
(b) What would be the frequency response of an equalization system that would compensate for the effects of multipath?
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What happens when the compressor discharge pressure falls below the pressure in the discharge line?
A. Forward flow stops and gas from the discharge line flows backward. B. Forward flow increases and overcomes the line pressure. C. Upstream line pressure drops as well as the process temperature. D. The compressor will make loud noises.
During which month is the consumption of fluid milk at its lowest level?
a. July c. June b. May d. November
What distinguishes a dual actuator EUI from a single actuator version?
A. pumping principle B. control valve management C. electrohydraulic nozzle D. bushing
The inner and outer surfaces of a 0.5-cm thick 2-m × 2-m window glass in winter are 10°C and 3°C, respectively. If the thermal conductivity of the glass is 0.78 W/m•K, determine the amount of heat loss through the glass over a period of 5 h. What would your answer be if the glass were 1 cm thick?
What will be an ideal response?