Roc of Energy Detector in Radar System Engineering Assignment Help

Assignment Task

Task
A typical radar transmits a well defined signal waveform towards an anticipated direction of target. The radar receives and processes the signal reflected from the target to detemine the presence or absence of the target as well as to determine the target’s distance, location, speed etc. Consider a radar system in which the received signal either or not consists of the signal reflected by a target. In the presence of a target, i.e., under hypothesis H1, the received sampled signal vector of length L can be expressed as H1 : y = ?x + n, (1) where ? is target reflection coefficient, x is a complex radar signal waveform vector of length L and n is complex additive Gaussian noise vector of length L. In the absence of the target, i.e., under hypothesis H0, the received signal y can be expressed as H0 : y = n. (2) Assume that each element of n is zero-mean having a variance of An energy detector (ED) is a simple detector in radar that evaluates the energy of the received signal and determines whether a targetis present or not. For example, if the received signal energy is a large value, then the target is most likely to be present, whereas if the signal energy is a small value, then the target is most likely to be absent. 

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