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Nonparametric rank detectors on quantized radar video signals

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1 Author(s)
Sanz-Gonzalez, J.L. ; Univ. Politech. de Madrid, Spain

Uniform randomization of ties is required for defining distribution-free ranks of independent and identically distributed quantized samples. Formulas of rank probabilities are given and applied to radar detection under quantized video samples. For some detectors, and assuming Gaussian noise, the asymptotic loss L(q) is calculated versus the normalized quantization step q, and the loss L(q) is estimated by Monte Carlo simulations. Both of these resulted in monotonic functions of q (0<q<1.1) that are independent of the other parameters. Furthermore, L(q)≈L(q )⩽0.45 dB, as q<0.8. The quantization step q is normalized with respect to the noise standard deviation

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Aerospace and Electronic Systems, IEEE Transactions on  (Volume:26 ,  Issue: 6 )