Constant False Alarm Rate Robust Adaptive Detection Using the Fast Fourier Transform
First Claim
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1. A signal detection apparatus, comprising:
- electronics configured to receive an RF input and to process the RF input applying a decision rule that is a normalized quantity to determine if a man-made signal is present or if only noise is present while achieving a constant false alarm rate.
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Abstract
A signal detection apparatus includes electronics configured to receive an RF input and to process the RF input applying a decision rule that is a normalized quantity to determine if a man-made signal is present or if only noise is present while achieving a constant false alarm rate.
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Citations
18 Claims
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1. A signal detection apparatus, comprising:
electronics configured to receive an RF input and to process the RF input applying a decision rule that is a normalized quantity to determine if a man-made signal is present or if only noise is present while achieving a constant false alarm rate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A signal detection apparatus, comprising:
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a tunable bandpass filter that filters an RF input to generate a bandpass filter output signal; an IF double balanced mixer that downconverts the bandpass filter output signal to complex baseband; lowpass filters that receive outputs of the IF double balanced mixer, the lowpass filters being configured to act as anti-alias filters for I and Q channels and to output an IF waveform; analog-to-digital converters (ADCs) configured to sample the IF waveform into digital samples; and electronics configured to receive the digital samples and implement a decision rule to determine if a man-made signal is present or if only noise is present while achieving a constant false alarm rate. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification