Title :
Improved multilevel quantization for detection of narrowband signals
Author :
Helstrom, Carl W.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., La Jolla, CA, USA
fDate :
3/1/1988 12:00:00 AM
Abstract :
Nearly optimum quantization levels for multileveled quantizers in radar receivers and distributed-detection are calculated for preassigned false-alarm probability Q0 by maximizing the detection probability Qd after replacing both Q 0 and (1-Qd) by the saddlepoint approximations. Narrowband signals of random phase and with both fixed and Rayleigh-fading amplitudes in Gaussian noise are treated, and the loss in signal detectability incurred by quantization is estimated
Keywords :
fading; probability; radar receivers; radar theory; random noise; signal detection; Gaussian noise; Rayleigh-fading amplitudes; detection of narrowband signals; detection probability; distributed-detection; loss; multilevel quantization; preassigned false-alarm probability; radar receivers; random phase; saddlepoint approximations; Amplitude estimation; Gaussian noise; Narrowband; Phase detection; Phase estimation; Probability; Quantization; Radar detection; Rayleigh channels; Signal detection;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
