Robust power detector for wideband signals among many single tone signals
| DWPI Title: System for identifying time period during which signal of interest is present in output of antenna, has processor which outputs indication of subset of period of time |
| Abstract: Various technologies for isolating a signal of interest from signals received contemporaneously by an antenna are described herein. A time period for which a signal of interest is present in a second signal can be identified based upon ratios of values of the second signal to the mean value of the second signal. When the ratio of the value of the second signal at a particular time to the mean of the second signal exceeds a threshold value, the signal of interest is considered to be present in the second signal. |
| Use: System for identifying time period during which signal of interest is present in output of antenna. |
| Advantage: The signal-to-noise ratio (SNR) of an output of the signal processing component is increased relative to when composite signal is processed over a period including times at which the signal of interest is not present. The smoothing filter applied by the signal isolator component is configured to reduce variance of the composite signal data. The signal isolator component can more efficiently identify a subset of time for which the signal of interest is present in the composite signal than a system that analyzes all values of the composite signal data. |
| Novelty: The system has a processor that receives (304) a first signal. The first signal comprises a second signal of interest and a third signal. The processor determines (306) that a ratio of amplitude of first signal at first time to mean amplitude of first signal over the period of time exceeds a threshold value. The processor identifies that first signal includes second signal of interest at first time in period of time. The processor outputs (308) indication of the subset of period of time based upon identifying that first signal includes the second signal at the first time. |
| Filed: 3/30/2017 |
| Application Number: US15474089A |
| Tech ID: SD 13691.1 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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