Granted Patent B2

US 12,395,875 · App. 19/071,179 · Granted Aug 19, 2025

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

Assignee: Digital Global Systems, Inc.

H04W24/08H04L27/00H04L27/0006H04W16/14H04W64/006H04W72/0453H04W76/11H04W24/02

Abstract

Claims (58)

1. A method for automatic signal detection in an environment, comprising:

learning the environment using power level measurements within the environment;

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

smoothing a spectral sweep with a correction vector and a first smoothing filter;

detecting at least one signal in the environment;

locating a transmitter for the at least one signal using at least one angle-of-arrival (AoA) measurement of the at least one signal;

adjusting a sensitivity parameter using Quality of Service (QoS) feedback to determine if the at least one signal is a signal of interest;

locating the transmitter for the at least one signal using a global positioning system (GPS) receiver and a direction finding location (DF) system;

performing a second smoothing filter only on frequencies outside a frequency range of the at least one signal and updating a calibration vector based on an output of the second smoothing filter;

averaging the spectral sweep, removing areas identified by matched positive and negative gradients, and connecting points between removed areas to determine a baseline; and

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

wherein the deltas are differentials from the baseline; and

wherein creating the reconstructed signal includes filling gaps where data is absent.

2. The method of claim 1 , further comprising indexing the power level measurements in a spectrum section using a learning routine.

3. The method of claim 1 , further comprising determining a frequency of the at least one signal.

4. The method of claim 1 , wherein detecting the at least one signal in the environment comprises fine-tuning a threshold of power level on a segmented basis.

5. The method of claim 1 , wherein smoothing the spectral sweep is based on the first smoothing filter that takes an average of the power level measurements over time.

6. The method of claim 1 , wherein the first derivative and/or the second derivative are used to identify the matched positive and negative gradients.

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

8. The method of claim 1 , wherein the deltas provide for signal identification, interference identification, neighboring band identification, device identification, and/or signal optimization.

9. A system for automatic signal detection in an environment, comprising:

at least one sensing device for detecting signals in the environment;

wherein the at least one sensing device is operable to learn the environment using power level measurements;

wherein the at least one sensing device 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 sensing device is operable to smooth a spectral sweep of the power level measurements with a correction vector and a first smoothing filter;

wherein the at least one sensing device is operable to detect at least one signal in the environment based on a machine learning (ML) algorithm;

wherein the at least one sensing device is operable to locate a transmitter for the at least one signal using at least one angle-of-arrival (AoA) measurement of the at least one signal;

wherein the at least one sensing device is operable to adjust a sensitivity parameter to determine if the at least one signal is a signal of interest using Quality of Service (QOS) feedback;

wherein one or more of the at least one sensing device includes a global positioning system (GPS) receiver and a direction finding location (DF) system operable to locate the transmitter for the at least one signal;

wherein a second smoothing filter is performed only on frequencies outside a frequency range of the at least one signal;

wherein a calibration vector is updated based on an output of the second smoothing filter;

wherein the at least one sensing device is operable to remove areas identified by matched positive and negative gradients and connect points between removed areas to determine a baseline;

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

wherein the deltas are differentials from the baseline.

10. The system of claim 9 , wherein the at least one sensing device is operable to index the power level measurements based on a learning routine.

11. The system of claim 9 , further comprising a remote device in network-based communication with the at least one sensing device, wherein detecting results are displayed on a remote device in real time.

12. The system of claim 9 , wherein the at least one sensing device is operable to fine-tune a threshold of power level on a segmented basis.

13. The system of claim 9 , wherein smoothing the spectral sweep is based on the first smoothing filter that takes an average of the power level measurements over time.

14. The system of claim 9 , wherein the first derivative and/or the second derivative are used to identify the matched positive and negative gradients.

15. The system of claim 9 , wherein the at least one sensing device is operable to fill gaps during creation of the reconstructed signal where data of the at least one signal is absent.

16. The system of claim 9 , wherein the at least one sensing device is operable to obtain a knowledge map from another sensing device.

17. An apparatus for automatic signal detection and/or interference detection in an environment, comprising:

at least one sensing device for detecting signals in the environment;

wherein the at least one sensing device is operable to learn the environment, to create learning data including power level measurements;

wherein the at least one sensing device is operable to form a knowledge map based on the power level measurements;

wherein the at least one sensing device is operable to scrub a spectral sweep against the knowledge map;

wherein the at least one sensing device is operable to calculate derivatives of the power level measurements;

wherein the at least one sensing device is operable to smooth the spectral sweep with a correction vector and a first smoothing filter;

wherein the at least one sensing device is operable to detect at least one signal in the environment;

wherein the at least one sensing device is operable to locate a transmitter for the at least one signal using at least one angle-of-arrival (AoA) measurement of the at least one signal;

wherein the at least one sensing device is operable to adjust a sensitivity parameter to determine if the at least one signal is a signal of interest using Quality of Service (QOS) feedback;

wherein one or more of the at least one sensing device includes a global positioning system (GPS) receiver and a direction finding location (DF) system operable to locate the transmitter for the at least one signal;

wherein a second smoothing filter is performed only on frequencies outside a frequency range of the at least one signal;

wherein a calibration vector is updated based on an output of the second smoothing filter;

wherein the at least one sensing device is operable to average the spectral sweep, remove areas identified by matched positive and negative gradients, and connect points between removed areas to determine a baseline;

wherein the at least one sensing device is operable to create a reconstructed signal using compressed data for deltas and the baseline.

18. The apparatus of claim 17 , wherein the at least one sensing device is operable to fine-tune a threshold of power level on a segmented basis.

19. The apparatus of claim 17 , wherein smoothing the spectral sweep is based on the first smoothing filter that takes an average of the power level measurements over time.

Assignments (2)

Continuity (23)

References Cited (400)