Granted Patent B2

US 12,302,144 · App. 17/956,966 · Granted May 13, 2025

Inventors: Ronald C. Dzierwa (Baltimore, MD); Gabriel R. Garcia (Severna Park, MD); Daniel Carbajal (Severna Park, MD)

Assignee: Digital Global Systems, Inc.

H04W24/08G06N5/022G06N20/00H04B17/23H04B17/27H04B17/309H04B17/318H04W16/14H04W64/006H04B17/3911H04W64/00

Abstract

Claims (80)

1. A method for automatic signal detection in a radio-frequency (RF) environment, comprising:

learning the RF environment, thereby creating learning data including power level measurements of one or more frequency bins within the RF environment;

forming a knowledge map of the RF environment based on the power level measurements of the one or more frequency bins within the RF environment;

scrubbing a real-time spectral sweep against the knowledge map to create an alert for a spike in power and/or bandwidth for the one or more frequency bins;

calculating a first derivative of the power level measurements and a second derivative of the power level measurements;

selecting most prominent derivatives of the first derivative and the second derivative;

smoothing the real-time spectral sweep with a correction vector, wherein the correction vector is determined according to the real-time spectral sweep;

applying a gradient detection algorithm to the smoothed real-time spectral sweep to create matched positive and negative gradients;

detecting at least one signal in the RF environment based on the matched positive and negative gradients;

averaging the real-time spectral sweep, removing areas identified by the matched positive and negative gradients, connecting points between removed areas to determine a baseline, and subtracting the baseline from the real-time spectral sweep to reveal the at least one signal; and

creating a reconstructed signal using compressed data for deltas and the baseline;

wherein the deltas are differentials from the baseline;

wherein the knowledge map comprises an array of normal distributions;

wherein the detecting the at least one signal in the RF environment comprises automatically fine-tuning a threshold of power level on a segmented basis while extracting at least one temporal feature from the knowledge map;

wherein the threshold of power level is variable between the one or more frequency bins;

wherein a power level of the at least one signal is determined to be greater than the threshold of power level;

tuning an automatic signal detection (ASD) sensitivity with a temporal feature extraction (TFE) system;

wherein the TFE system uses an aggregation of signal data over time;

calculating and storing signal degradation data for the at least one signal based at least in part on noise figure parameters, hardware parameters, and environmental parameters;

wherein the hardware parameters comprise antenna position, antenna type, orientation, and/or effective isotropic radiated power (EIRP).

2. The method of claim 1 , further comprising creating a profile of the RF environment based on the knowledge map, wherein the profile comprises a highest power level at each frequency during a learning period.

3. The method of claim 1 , further comprising periodically reevaluating the RF environment and updating the knowledge map.

4. The method of claim 1 , further comprising sending a notification and/or an alarm to an operator after detecting the at least one signal.

5. The method of claim 1 , further comprising displaying the knowledge map and/or detecting results in real time on a remote device.

6. The method of claim 1 , further comprising learning the RF environment to a settled percent.

7. The method of claim 1 , further comprising indexing the power level measurements for each frequency interval in a spectrum section during a learning period.

8. The method of claim 1 , wherein the learning the RF environment is based on statistical learning techniques.

9. A system for automatic signal detection in a radio-frequency (RF) environment, comprising:

at least one apparatus for detecting signals in the RF environment;

wherein the at least one apparatus is operable to sweep and learn the RF environment, thereby creating learning data including power level measurements of one or more frequency bins within the RF environment;

wherein the at least one apparatus is operable to form a knowledge map based on the power level measurements of the one or more frequency bins within the RF environment;

wherein the knowledge map comprises an array of normal distributions;

wherein the at least one apparatus is operable to scrub a real-time spectral sweep against the knowledge map to create an alert for a spike in power and/or bandwidth for the one or more frequency bins;

wherein the at least one apparatus is operable to calculate a first derivative of the power level measurements and a second derivative of the power level measurements;

wherein the at least one apparatus is operable to select most prominent derivatives of the first derivative and the second derivative;

wherein the at least one apparatus is operable to smooth the real-time spectral sweep with a correction vector, wherein the correction vector is determined according to the real-time spectral sweep;

wherein the at least one apparatus is operable to apply a gradient detection algorithm to the smoothed real-time spectral sweep to create matched positive and negative gradients;

wherein the at least one apparatus is operable to detect at least one signal in the RF environment based on the matched positive and negative gradients; and

wherein the at least one apparatus is operable to average the real-time spectral sweep, remove areas identified by the matched positive and negative gradients, connect points between removed areas to determine a baseline, and subtract the baseline from the real-time spectral sweep to reveal the at least one signal;

wherein the at least one apparatus is operable to create a reconstructed signal using compressed data for deltas and the baseline;

wherein the deltas are differentials from the baseline;

wherein the at least one apparatus is operable to automatically fine-tune a threshold of power level on a segmented basis while extracting at least one temporal feature from the knowledge map;

wherein the threshold of power level is variable between the one or more frequency bins;

wherein a power level of the at least one signal is determined to be greater than the threshold of power level;

wherein an automatic signal detection (ASD) sensitivity is operable to be tuned with a temporal feature extraction (TFE) system;

wherein the TFE system uses an aggregation of signal data over time;

wherein the at least one apparatus is operable to calculate signal degradation data for the at least one signal based at least in part on noise figure parameters, hardware parameters, and environmental parameters; and

wherein the hardware parameters comprise antenna position, antenna type, orientation, and/or effective isotropic radiated power (EIRP).

10. The system of claim 9 , wherein the at least one apparatus and/or a remote device is operable to create a profile of the RF environment based on the knowledge map, wherein the profile comprises a highest power level at each frequency during a learning period.

11. The system of claim 9 , wherein the at least one apparatus periodically reevaluates the RF environment and updates the knowledge map.

12. The system of claim 9 , wherein the at least one apparatus is operable to send a notification and/or an alarm to an operator after detecting the at least one signal.

13. The system of claim 9 , wherein the at least one apparatus is operable to learn the RF environment to a settled percent.

14. The system of claim 9 , wherein the at least one apparatus is operable to index the power level measurements for each frequency interval in a spectrum section in a learning period.

15. The system of claim 9 , wherein the knowledge map and detecting results are displayed on a remote device in real time.

16. The system of claim 9 , wherein a frequency resolution of the knowledge map is based on a Fast Fourier Transform (FFT) size setting.

17. The system of claim 9 , wherein the environmental parameters include rain, fog, and haze based on a delta correction factor table and a provided precipitation rate.

18. A system for automatic signal detection in a radio-frequency (RF) environment, comprising:

at least one apparatus for detecting signals in the RF environment; and

a remote device in network-based communication with the at least one apparatus;

wherein the at least one apparatus is operable to sweep and learn the RF environment, thereby creating learning data including power level measurements of one or more frequency bins within the RF environment;

wherein the at least one apparatus is operable to form a knowledge map based on the power level measurements of the one or more frequency bins within the RF environment;

wherein the knowledge map comprises an array of normal distributions;

wherein the at least one apparatus is operable to scrub a real-time spectral sweep against the knowledge map to create an alert for a spike in power and/or bandwidth for the one or more frequency bins;

wherein the at least one apparatus is operable to calculate a first derivative of the power level measurements and a second derivative of the power level measurements;

wherein the at least one apparatus is operable to select most prominent derivatives of the first derivative and the second derivative;

wherein the at least one apparatus is operable to smooth the real-time spectral sweep with a correction vector, wherein the correction vector is determined according to the real-time spectral sweep;

wherein the at least one apparatus is operable to apply a gradient detection algorithm to the smoothed real-time spectral sweep to create matched positive and negative gradients

wherein the at least one apparatus is operable to detect at least one signal in the RF environment based on the matched positive and negative gradients; and

wherein the at least one apparatus is operable to average the real-time spectral sweep, remove areas identified by the matched positive and negative gradients, connect points between removed areas to determine a baseline, and subtract the baseline from the real-time spectral sweep to reveal the at least one signal;

wherein the at least one apparatus is operable to create a reconstructed signal using compressed data for deltas and the baseline;

wherein the deltas are differentials from the baseline;

wherein the at least one apparatus is operable to automatically fine-tune a threshold of power level on a segmented basis while extracting at least one temporal feature from the knowledge map;

wherein the threshold of power level is variable between the one or more frequency bins;

wherein a power level of the at least one signal is determined to be greater than the threshold of power level;

wherein the at least one apparatus is operable to tune an automatic signal detection (ASD) sensitivity with a temporal feature extraction (TFE) system;

wherein the TFE system uses an aggregation of signal data over time;

wherein the at least one apparatus is operable to calculate signal degradation data for the at least one signal based at least in part on noise figure parameters and hardware parameters; and

wherein the hardware parameters comprise antenna position, antenna type, orientation, and/or effective isotropic radiated power (EIRP).

19. The system of claim 18 , wherein the knowledge map and detecting results are displayed on the remote device in real time.

20. The system of claim 18 , wherein the at least one apparatus is operable to send a notification and/or an alarm to an operator after detecting the at least one signal.

Assignments (2)

Continuity (13)

References Cited (400)