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In TDM, what do you think are some of the effects of increasing the number channels...

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Electrical Engineering

In TDM, what do you think are some of the effects of increasingthe number channels while holding the sampling rate constant?

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On this paper the TDM approached for simultaneous collection of information from all elements is mentioned in element building on the system confirmed in 26 There are two key areas of focus the multiplexing electronics which might be located with the transducer and the direct digital demultiplexing design which makes up the receiver A minimal TDM transmit system requires handiest an analog multiplexer and a buffer for each and every channel and so requires so much much less house to put into effect than the opposite channel discount schemes considered On the receiver end the indicators then ought to be demultiplexed which requires extra hardware If completed in the analog area this may require the excessive frequency multiplexed signals to be passed through a synchronous demultiplexer filtered after which handed into an ADC dedicated to each and every channel Every of these stages would add noise to the procedure would present further complexity in matching the circuits across all channels and would require a colossal number of ADCs As theres now more and more popular availability of very excessive speed ADCs with amazing number of bits on the order of 10 or extra 28 29 and also FPGAs capable of performing difficult DSP functions on many channels in parallel a lot of the receiver hardware complexity will also be eradicated with the aid of moving all of the demultiplexing standards from the analog domain into an FPGA and permitting demultiplexing to be achieved straight in the digital area The clock frequency of the multiplexer will be so much greater than the sampling frequency for each channel in an eight channel 25 MSPS design as an instance the clock frequency could be 200 MHz The analog alerts are modulated onto pulses which have to rise and stabilize speedy sufficient that the amplitude will also be extracted by means    See Answer
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