Title :
Detection and analysis of FMCW and P-4 polyphase LPI waveforms using quadrature mirror filter trees
Author :
Copeland, D.B. ; Pace, P.E.
Author_Institution :
Department of Electrical and Computer Engineering, Naval Postgraduate School, Monterey, CA 93943, USA
Abstract :
This paper investigates the performance of a quadrature mirror filter (QMF) in detecting two low-probability of intercept (LPI) emitter waveforms: a triangular Frequency Modulation Continuous Wave (FMCW) waveform and a P-4 polyphase code CW waveform. Detection performance for signal-to-noise ratios (SNRs) of +10 dB, 0 dB, −10 dB, and −20 dB is examined. Signal features that can be extracted are also quantified. Results indicate that QMF processing can provide good detection of LPI waveforms even in the presence of a moderate amount of noise.
Keywords :
Mirrors; Radar; Signal resolution;
Conference_Titel :
Acoustics, Speech, and Signal Processing (ICASSP), 2002 IEEE International Conference on
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-7402-9
DOI :
10.1109/ICASSP.2002.5745524
