Methods and systems for processing and displaying data

• US 8,438,203 B2
• Filed: 06/27/2007
• Issued: 05/07/2013
• Est. Priority Date: 06/27/2007
• Status: Expired due to Fees

• Current Assignee: L-3 Communications Integrated Systems LP (L3Harris Technologies, Inc.)
• Original Assignee: L-3 Communications Integrated Systems LP (L3Harris Technologies, Inc.)
• Inventors: Ha, Stephen T.
• Primary Examiner(s): Do, Chat
• Assistant Examiner(s): Hughes, Kevin G
• Application Number:
  US11/823,465
• Publication Number:
  US 20090006516A1
• Time in Patent Office: 2,141 Days
• Field of Search: 708/400
• US Class Current: 708/400
• CPC Class Codes: G01S 7/021 Auxiliary means for detecting or identifying radar signals or the like, e.g. radar jamming signals
• CPC Class Codes: G01S 7/4802 using analysis of echo signal for target characterisation; Target signature; Target cross-section
• CPC Class Codes: G01S 7/52001 Auxiliary means for detecting or identifying sonar signals or the like, e.g. sonar jamming signals

Abstract

Methods and systems of processing and displaying data that include obtaining and processing time-time data to obtain an in-phase sum of the time-time data, and of providing and utilizing the in-phase sum of the time-time data to generate a graphical display of the Radon sum of the time-time data. The in-phase sum of the time-time data may be provided for display, for example, by outputting a data signal suitable for generating a graphical representation of the in-phase sum of the time-time data, and the output data signal may be utilized to generate a graphical representation of the in-phase sum of the time-time data.

Claims

1. A system for processing and displaying data, comprising one or more processors and a display device coupled to the one or more processors, where one or more of the processors are programmed to:

process time-time data from a time series of data to obtain an in-phase sum of said time-time data, the time-time data comprising multiple data traces with each of said multiple data traces corresponding to a different time segment of the time series than each other of said multiple data traces, and the in-phase sum of said time-time data being obtained by adding said time-time data in phase across said multiple data traces in a straight line;

provide said in-phase sum of said time-time data as a display signal from the one or more processors to the display device for display; and

graphically display said in-phase sum of said time-time data on the display device using said provided in-phase sum of time-time data;

wherein one or more of the processors are further programmed to obtain said time-time data from reinforceable repetitive synchronous data; and

wherein said reinforceable repetitive synchronous data comprises rectified average delta data.

2. The system of claim 1, wherein one or more of the processors are programmed to:

process said time-time data to obtain a Radon sum of said time-time data by adding said time-time data in phase across said multiple data traces in a straight line;

provide said Radon sum of said time-time data for display; and

graphically display said Radon sum of said time-time data using said provided Radon sum of time-time data.

3. The system of claim 2, further comprising at least one of a video display or a hard copy display device;

and

wherein one or more of the processors are further programmed to graphically display said Radon sum of said time-time data using said video display device or said hard copy display device.

4. The system of claim 2, wherein one or more of the processors are further programmed to:

receive signal data that comprises a signal; and

obtain said reinforceable repetitive synchronous data from said signal.

5. The system of claim 4, wherein said signal comprises a phase-shift key (PSK) signal;

or wherein said signal comprises a frequency modulated continuous wave (FMCW) signal;

or wherein said signal comprises a frequency-shift key (FSK) signal.

6. The system of claim 4, wherein said signal comprises a radar signal.

7. The system of claim 4, wherein one or more of the processors are further programmed to perform said graphically displaying of said Radon sum of said time-time data in real time as said signal data is received.

8. The system of claim 2, wherein said time-time data comprises multiple data traces;

and

wherein one or more of the processors are further programmed to add said time-time data across said multiple data traces in a straight line to obtain said Radon sum of said time-time data.

9. The system of claim 8, wherein one or more of the processors are further programmed to:

provide an initial estimate of element length of a repetitive synchronous event of reinforceable repetitive synchronous data;

obtain said time-time data from said reinforceable repetitive synchronous data; and

then orient said multiple data traces of said time-time data relative to each other based on said estimated element length prior to adding said time-time data in phase across said multiple data traces in a straight line; and

then to determine a revised estimate of said element length based on said sum of said time-time data.

10. The system of claim 9, wherein one or more of the processors are further programmed to:

obtain an amplitude spectrum of said reinforceable repetitive synchronous data; and

then provide said initial estimate of element length of said repetitive synchronous event from said amplitude spectrum of said reinforceable repetitive synchronous data.

11. The system of claim 10, wherein one or more of the processors are further programmed to:

applying a Fast Fourier Transform to said reinforceable repetitive synchronous data to obtain said amplitude spectrum; and

add said time-time data in phase across said multiple data traces in a straight line to obtain a Radon sum of said time-time data.

12. The system of claim 9, wherein one or more of the processors are further programmed to:

add said time-time data in phase across said multiple data traces in a straight line to obtain a Radon sum of said time-time data that includes one or more peaks; and

determine a revised estimate of said element length to be equal to either of;

the wrap around length of the time-time data in the case where the Radon sum of said time-time data includes a single peak, or

the distance between the two closest peaks in the case where the Radon sum of said time-time data includes multiple peaks.

13. The system of claim 9, wherein one or more of the processors are further programmed to:

add said time-time data in phase across said multiple data traces in a straight line to obtain Radon sums of said time-time data corresponding to multiple wrap around length estimates; and

then determine a revised estimate of said element length to be equal to the wrap around length of the time-time data corresponding to the Radon sum having a peak with the largest Radon sum value.

14. A method of processing and displaying data, comprising:

providing one or more processors and a display device;

obtaining time-time data from reinforceable repetitive synchronous data obtained from a time series of data, said time-time data comprising multiple data traces, each of said multiple data traces corresponding to a different time segment of the time series than each other of said multiple data traces; and

using one or more of the processors to process and display the data;

where the one or more processors are programmed to process and display the data by performing the following steps;

processing said time-time data to obtain an in-phase sum of said time-time data in a straight line across multiple traces obtained from said signal data, each of said multiple data traces corresponding to a different time segment of the time series than each other of said multiple data traces,

providing said in-phase sum of said time-time data as a display signal from the one or more processors to the display device for display, and

utilizing said provided in-phase sum of time-time data to provide a graphical display on the display device of said in-phase sum of said time-time data; and

wherein said reinforceable repetitive synchronous data comprises rectified average delta data.

15. The method of claim 14, wherein the one or more processors are programmed to process and display the data by performing the following steps:

processing said time-time data by adding said time-time data in phase across said multiple data traces in a straight line to obtain a Radon sum of said time-time data;

providing said Radon sum of said time-time data as a display signal from the one or more processors to the display device for display; and

utilizing said provided Radon sum of time-time data to provide a graphical display on the display device of said Radon sum of said time-time data.

16. The method of claim 15, where the display device comprises at least one of a video display device or a hard copy display device.

17. The method of claim 15, further comprising providing signal data that comprises a signal;

and

wherein the one or more of the processors are programmed to obtain said reinforceable repetitive synchronous data from said signal.

18. The method of claim 17, wherein said signal comprises a phase-shift key (PSK) signal;

or

wherein said signal comprises a frequency modulated continuous wave (FMCW) signal;

or

wherein said signal comprises a frequency-shift key (FSK) signal.

19. The method of claim 17, wherein said signal comprises a radar signal.

20. The method of claim 17,

wherein the one or more processors are programmed to process and display the data by performing said step of utilizing said provided Radon sum of time-time data to provide a graphical display on the display device of said Radon sum of said time-time data in real time as said signal data is received.

21. The method of claim 15, wherein the one or more of the processors are programmed to process and display the data by performing the following steps:

obtaining said time-time data from said reinforceable repetitive synchronous data; and

then orienting said multiple data traces of said time-time data relative to each other based on said estimated element length prior to adding said time-time data in phase across said multiple data traces in a straight line, and

then determining a revised estimate of said element length based on said sum of said time-time data.

22. The method of claim 21, wherein the one or more of the processors are programmed to process and display the data by performing the following steps:

obtaining an amplitude spectrum of said reinforceable repetitive synchronous data; and

then providing said initial estimate of element length of said repetitive synchronous event from said amplitude spectrum of said reinforceable repetitive synchronous data.

23. The method of claim 22, wherein the one or more of the processors are programmed to process and display the data by performing the following steps:

applying a Fast Fourier Transform to said reinforceable repetitive synchronous data to obtain said amplitude spectrum; and

adding said time-time data in phase across said multiple data traces to obtain a Radon sum of said time-time data.

24. The method of claim 21, where the one or more of the processors are programmed to process and display the data by performing the following steps:

adding said time-time data in phase across said multiple data traces in a straight line to obtain a Radon sum of said time-time data that includes one or more peaks; and

determining a revised estimate of said element length to be equal to either of;

the wrap around length of the time-time data in the case where the Radon sum of said time-time data includes a single peak, or

the distance between the two closest peaks in the case where the Radon sum of said time-time data includes multiple peaks.

25. The method of claim 21, where the one or more of the processors are programmed to process and display the data by performing the following steps:

adding said time-time data in phase across said multiple data traces in a straight line to obtain Radon sums of said time-time data corresponding to multiple wrap around length estimates; and

then determining a revised estimate of said element length to be equal to the wrap around length of the time-time data corresponding to the Radon sum having a peak with the largest Radon sum value.

26. A non-transitory tangible computer readable medium including a computer program of instructions, the computer program of instructions comprising code that is executable by one or more processors to:

obtain time-time data from reinforceable repetitive synchronous data;

process the time-time data from a time series of data to obtain an in-phase sum of said time-time data, the time-time data comprising multiple data traces with each of said multiple data traces corresponding to a different time segment of the time series than each other of said multiple data traces, and the in-phase sum of said time-time data being obtained by adding said time-time data in phase across said multiple data traces in a straight line;

provide said in-phase sum of said time-time data as a display signal from the one or more processors to a display device for display; and

utilize said provided in-phase sum of time-time data to provide a graphical display on the display device of said in-phase sum of said time-time data;

where said reinforceable repetitive synchronous data comprises rectified average delta data.

27. A system for processing and displaying data, said system comprising:

an antenna configure to receive radio frequency (RF) signal data;

receive path circuitry coupled to receive the RF signal data from the antenna and to provide the received RF signal data as digitized signal data;

event detector circuitry coupled to receive the digitized signal data from the receive path circuitry, the event detector circuitry comprising one or more processors; and

a display device coupled to the event detector circuitry;

where one or more of the processors of the event detector circuitry are programmed to;

obtain reinforceable repetitive synchronous data from a time series of said signal data;

obtain time-time data from said reinforceable repetitive synchronous data, said time-time data comprising multiple data traces, each of said multiple data traces corresponding to a different time segment of the time series than each other of said multiple data traces,

process time-time data to obtain an in-phase sum of said time-time data by adding said time-time data in phase across said multiple data traces in a straight line;

provide said in-phase sum of said time-time data as a display signal from the one or more processors to the display device for display; and

graphically display said in-phase sum of said time-time data on the display device using said provided in-phase sum of time-time data;

wherein said reinforceable repetitive synchronous data comprises rectified average delta data.

28. A method for processing and displaying data, said method comprising:

providing an antenna configure to receive radio frequency (RF) signal data;

providing receive path circuitry coupled to receive the RF signal data from the antenna and to provide the received RF signal data as digitized signal data;

providing event detector circuitry coupled to receive the digitized signal data from the receive path circuitry, the event detector circuitry comprising one or more processors;

using the one or more of the processors of the event detector circuitry to perform the following steps;

obtaining reinforceable repetitive synchronous data from a time series of said signal data;

obtaining time-time data from said reinforceable repetitive synchronous data, said time-time data comprising multiple data traces, each of said multiple data traces corresponding to a different time segment of the time series than each other of said multiple data traces;

processing said time-time data to obtain an in-phase sum of said time-time data by adding said time-time data in phase across said multiple data traces in a straight line;

providing said in-phase sum of said time-time data as a display signal from the one or more processors to the display device for display; and

graphically displaying said in-phase sum of said time-time data on the display device using said provided in-phase sum of time-time data;

where said reinforceable repetitive synchronous data comprises rectified average delta data.