Abstract
Modern radars use complex waveforms to obtain high detection performance and low probabilities of interception and identification. Signals intercepted from multiple radars overlap considerably in both the time and frequency domains and are difficult to separate with primary time parameters. Time–frequency analysis (TFA), as a key signal-processing tool, can provide better insight into the signal than conventional methods. In particular, among the various types of TFA, parameterized time-frequency analysis (PTFA) has shown great potential to investigate the time–frequency features of such non-stationary signals. In this paper, we propose a procedure for PTFA to separate overlapped radar signals; it includes five steps: initiation, parameterized time-frequency analysis, demodulating the signal of interest, adaptive filtering and recovering the signal. The effectiveness of the method was verified with simulated data and an intercepted radar signal received in a microwave laboratory. The results show that the proposed method has good performance and has potential in electronic reconnaissance applications, such as electronic intelligence, electronic warfare support measures, and radar warning.
Acknowledgements
The authors declare no conflict of interest.
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©2016 by De Gruyter
Artikel in diesem Heft
- Frontmatter
- Miniaturized Dual-Band Bandpass Filter Using Embedded Dual-Mode Resonator with Controllable Bandwidths
- Quasi Eighth-Mode Substrate Integrated Waveguide (SIW) Fractal Resonator Filter Utilizing Gap Coupling Compensation
- Bandwidth Enhancement of Cylindrical Dielectric Resonator Antenna Using Thin Dielectric Layer Fed by Resonating Slot
- A Novel Design of Frequency Reconfigurable Antenna for UWB Application
- An Accurate Method for Measuring Airplane-Borne Conformal Antenna’s Radar Cross Section
- Separation of Intercepted Multi-Radar Signals Based on Parameterized Time-Frequency Analysis
- Estimation and Extraction of Radar Signal Features Using Modified B Distribution and Particle Filters
- A Simple Permittivity Calibration Method for GPR-Based Road Pavement Measurements
- Performance Analysis of Hybrid WDM-FSO System under Various Weather Conditions
- A Locally Modal B-Spline Based Full-Vector Finite-Element Method with PML for Nonlinear and Lossy Plasmonic Waveguide
- Review of Magnetron Developments
Artikel in diesem Heft
- Frontmatter
- Miniaturized Dual-Band Bandpass Filter Using Embedded Dual-Mode Resonator with Controllable Bandwidths
- Quasi Eighth-Mode Substrate Integrated Waveguide (SIW) Fractal Resonator Filter Utilizing Gap Coupling Compensation
- Bandwidth Enhancement of Cylindrical Dielectric Resonator Antenna Using Thin Dielectric Layer Fed by Resonating Slot
- A Novel Design of Frequency Reconfigurable Antenna for UWB Application
- An Accurate Method for Measuring Airplane-Borne Conformal Antenna’s Radar Cross Section
- Separation of Intercepted Multi-Radar Signals Based on Parameterized Time-Frequency Analysis
- Estimation and Extraction of Radar Signal Features Using Modified B Distribution and Particle Filters
- A Simple Permittivity Calibration Method for GPR-Based Road Pavement Measurements
- Performance Analysis of Hybrid WDM-FSO System under Various Weather Conditions
- A Locally Modal B-Spline Based Full-Vector Finite-Element Method with PML for Nonlinear and Lossy Plasmonic Waveguide
- Review of Magnetron Developments