____, ____ and ____ must be properly matched for effective representation of input signal in quadrature sampling.(a) Modulators, signal paths, correlator(b) Signal paths, modulators, zero crossing detector(c) Low pass filters, zero crossing detector, correlator(d) Low pass filters, modulators, signal pathsI have been asked this question in an interview.My enquiry is from ADC Tradeoffs in section Technology Tradeoffs in Software Defined Radio of Cognitive Radio

____, ____ and ____ must be properly matched for effective representat

1.	____, ____ and ____ must be properly matched for effective representation of input signal in quadrature sampling.(a) Modulators, signal paths, correlator(b) Signal paths, modulators, zero crossing detector(c) Low pass filters, zero crossing detector, correlator(d) Low pass filters, modulators, signal pathsI have been asked this question in an interview.My enquiry is from ADC Tradeoffs in section Technology Tradeoffs in Software Defined Radio of Cognitive Radio
Answer» Correct option is (d) Low pass filters, MODULATORS, signal paths Easy EXPLANATION: Low pass filters, modulators,and signal paths must be properly matched for effective representation of input signal in QUADRATURE sampling. AMPLITUDE mismatch, inconsistent time duration in filters MAY lead to degradation of complex signal.

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