Generating Waveform Families using Multi-Tone Sinusoidal Frequency Modulation

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 Modulated (MTSFM) waveform model. The MTSFM waveform's modulation function is represented using a Fourier series expa...

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Bibliographic Details
Main Author: Hague, David A.
Format: Conference Proceeding
Language:English
Subjects:
Ambiguity Function
Conferences
Design methodology
Frequency modulation
Generalized Bessel Functions
Peak to average power ratio
Radar
Spectral efficiency
Transmitters
Waveform Diversity
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Summary: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 Modulated (MTSFM) waveform model. The MTSFM waveform's modulation function is represented using a Fourier series expansion. The Fourier coefficients are utilized as a set of discrete parameters that can be modified to optimize the waveform family's properties. The waveforms' ACF/CCF properties are optimized utilizing a multi-objective optimization problem. Each objective function is weighted to place emphasis on either low ACF or CCF sidelobes. The resulting optimized MTSFM waveforms each possess a thumbtack-like Ambiguity Function in addition to the specifically designed ACF/CCF properties. Most importantly, the resulting MTSFM waveform families possess both ideally low Peak-to-Average Power Ratios (PAPR) and high Spectral Efficiency (SE) making them well suited for transmission on practical radar transmitters.
ISSN:2640-7736
DOI:10.1109/RADAR42522.2020.9114748