6 papers
Continuous Phase Modulation of Phase Coded Transmit Waveforms using Multi-Tone Sinusoidal Frequency Modulation
David A. Hague
Phase Coded (PC) waveforms possess desirable Auto-Correlation Function (ACF) properties for use in radar and sonar systems. However, their spectra possess high spectral leakage due…
Exploring the Interdependencies Between Transmit Waveform Ambiguity Function Shape and Off-Axis Bearing Estimation
David A. Hague, Matthew D. Tidwell
The frequency dependent beampatterns of an active sonar projector filters the acoustic signal that is transmitted into the medium, also known as the transmit waveform. This filteri…
Matched Illumination Waveforms using Multi-Tone Sinusoidal Frequency Modulation
Kaushallya Adhikari, David A. Hague
This paper explores the design of constant modulus Matched-Illumination (MI) waveforms using the Multi-Tone Sinusoidal Frequency Modulation (MTSFM) waveform model. MI waveforms are…
Generating Waveform Families using Multi-Tone Sinusoidal Frequency Modulation
David A. Hague
This paper presents a method for generating a family of waveforms with low in-band Auto/Cross-Correlation Function (ACF/CCF) properties using the Multi-Tone Sinusoidal Frequency Mo…
Spectral Perturbations of the Line Graph Laplacian
Ian M. T. Rooney, Parker S. Kuklinski, David A. Hague
The graph Laplacian is an important tool in Graph Signal Processing (GSP) as its eigenvalue decomposition acts as an analogue to the Fourier transform and is known as the Graph Fou…
The Generalized Sinusoidal Frequency Modulated Waveform for Active Sonar Systems
David A. Hague
Pulse Compression (PC) active sonar waveforms provide a significant improvement in range resolution over single frequency sinusoidal waveforms also known as Continuous Wave (CW) wa…