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Introduction To Radar – 1 – 7

31. Fourier transform is :

(a) invented by Fourier
(b) used to convert a frequency variable into time domain
(c) not an operation
(d) an operation containing integration

ANSWER

EXPLANATION

32. ECCM is :

(a) Electronic Counter Counter Measure
(b) Electronic Communication Counter Meter
(c) Electrical Counter Communication Measure
(d) Electrical Communication Critical Measure

ANSWER

EXPLANATION

33. Radar cross-section is expressed in :

(a) m
(b) m^2
(c) m^3
(d) watt/m^2

ANSWER

EXPLANATION

34. Most of the weather radars use :

(a) linear polarization
(b) circular polarization
(c) horizontal polarization
(d) vertical polarization

ANSWER

EXPLANATION

35. Cross-range has the units of :

(a) m
(b) m^2
(c) degree
(d) m/s

ANSWER

EXPLANATION

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