NDLI: Polyphase coded low probability of intercept signals detection and estimation using time

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Polyphase coded low probability of intercept signals detection and estimation using time–frequency rate distribution

Content Provider	IET Digital Library
Author	Jiang, Li Li, Lin Zhao, Guo qing
Abstract	Polyphase codes including Frank, P1, P2, P3 and P4 codes are different from linear frequency modulation (LFM) and conventional phase coding, which have brought great challenges to current reconnaissance systems. Polyphase codes are derived from approximation to LFM waveforms. By theoretical derivation and simulation analysis, the authors can conclude that time–frequency rate (TFR) distribution is much more suitable for detection and estimation of polyphase coded signals than time–frequency distribution. Based on the transformation of TFR distribution, a hierarchical signal detection scheme and a peak slice-based parameter estimation method are proposed for polyphase coded signals. To improve the energy concentration, two higher order TFR distributions are presented as a supplement and comparison. The theoretical analysis and simulation experiments demonstrate the validity and efficiency of the proposed method.
Starting Page	46
Ending Page	54
Page Count	9
ISSN	17519675
Volume Number	10
e-ISSN	17519683
Issue Number	Issue 1, Feb (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-spr/10/1
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-spr.2014.0020
Journal	IET Signal Processing
Publisher Date	2016-02-01
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Code Energy Concentration Improvement FM Radar Frequency Modulation Hierarchical Signal Detection Scheme Intercept Radar Signal Detection Intercept Signal Estimation LFM Waveform Linear Frequency Modulation Mathematical Analysis Parameter Estimation Peak Slice-based Parameter Estimation Method Phase Coding Polyphase Coded Low Probability Probability Radar Detection Radar Theory Reconnaissance System Signal Detection Statistics TFR Distribution Transformation Time-frequency Analysis Time-frequency Rate Distribution
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering

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