Systems and methods for parallelizing and pipelining a tunable blind source separation filter

Patent metadata

Field	Value
Publication number	US-9954561-B2
Application number	US-201615263016-A
Country	US
Kind code	B2
Filing date	Sep 12, 2016
Priority date	Sep 12, 2016
Publication date	Apr 24, 2018
Grant date	Apr 24, 2018

Abstract

A method of processing a plurality of time-varying signals received at a sensor communicatively coupled to a signal data processor to identify at least one parameter of at least one of the plurality of time-varying signals is provided. The method includes receiving, at a plurality of blind source separation (BSS) modules of the signal data processor, signals derived from the plurality of time-varying signals, each BSS module of the plurality of BSS modules including a filtering subsystem having a pipelined architecture and a parallelized architecture. The method also includes generating a plurality of blind source separated signals, and transmitting at least one pulse descriptor word (PDW) parameter vector signal to a computing device of the signal data processor. The method further includes identifying the at least one parameter from the at least one PDW parameter vector signal, and outputting the at least one parameter from the signal data processor.

First claim

What is claimed is:

1. A method of processing a plurality of time-varying signals received at a sensor communicatively coupled to a signal data processor to identify at least one parameter of at least one of the plurality of time-varying signals, said method comprising:
receiving, at a plurality of blind source separation (“BSS”) modules of the signal data processor, signals derived from the plurality of time-varying signals, each BSS module of the plurality of BSS modules including a filtering subsystem, wherein the filtering subsystem within each BSS module has a pipelined architecture and a parallelized architecture;
generating, using the plurality of BSS modules, a plurality of blind source separated signals by operating each filtering subsystem in accordance with a first filter coefficient (α) and a second filter coefficient (β);
transmitting, based on the plurality of blind source separated signals, at least one pulse descriptor word parameter vector signal to a computing device of the signal data processor;
continuously updating the first and second filter coefficients (α, β) based on the at least one pulse descriptor word parameter vector signal;
identifying, using the computing device, the at least one parameter from the at least one pulse descriptor word parameter vector signal; and
outputting the at least one parameter from the signal data processor.

2. The method in accordance with claim 1 , wherein receiving signals comprises receiving denoised signals and state energy signals from at least one signal denoising module.

3. The method in accordance with claim 1 , wherein generating a plurality of blind source separated signals comprises generating the plurality of blind source separated signals using a plurality of summing tree modules.

4. The method in accordance with claim 1 , wherein each filtering subsystem includes a plurality of filtering modules.

5. The method in accordance with claim 1 , wherein outputting the at least one parameter from the signal data processor comprises directing movement of a vehicle based on the at least one parameter.

6. The method in accordance with claim 1 , wherein outputting the at least one parameter from the signal data processor comprises displaying the at least one parameter on a display.

7. A system for processing a plurality of time-varying signals to identify at least one parameter of at least one of the plurality of time-varying signals, said system comprising:
a sensor configured to receive the plurality of time-varying signals; and
a signal data processor communicatively coupled to said sensor and comprising a plurality of blind source separation (“BSS”) modules, each BSS module of said plurality of BSS modules comprising a filtering subsystem, wherein said filtering subsystem within each BSS module has a pipelined architecture and a parallelized architecture, said signal data processor configured to:
receive, at said plurality of BSS modules, signals derived from the plurality of time-varying signals;
generate, using the plurality of BSS modules, a plurality of blind source separated signals by operating each filtering subsystem in accordance with a first filter coefficient (α) and a second filter coefficient (β);
transmit, based on the plurality of blind source separated signals, at least one pulse descriptor word parameter vector signal to a computing device of said signal data processor;
continuously update the first and second filter coefficients (α, β) based on the at least one pulse descriptor word parameter vector signal;
identify, using the computing device, the at least one parameter from the at least one pulse descriptor word parameter vector signal; and
output the at least one parameter from said signal data processor.

8. The system in accordance with claim 7 , wherein said signal data processor further comprises at least one signal denoising module configured to provide the signals to said plurality of BSS modules.

9. The system in accordance with claim 7 , wherein said signal data processor further comprises a plurality of summing tree modules.

10. The system in accordance with claim 7 , wherein each filtering subsystem comprises a plurality of filtering modules.

11. The system in accordance with claim 7 , wherein to output the at least one parameter, said signal data processor is configured to direct movement of a vehicle based on the at least one parameter.

12. The system in accordance with claim 7 , wherein to output the at least one parameter, said signal data processor is configured to display the at least one parameter on a display.

13. A signal data processor for processing a plurality of time-varying signals to identify at least one parameter of at least one of the plurality of time-varying signals, said signal data processor comprising:
a plurality of blind source separation (“BSS”) modules, each BSS module of said plurality of BSS modules comprising a filtering subsystem, wherein said filtering subsystem within each BSS module has a pipelined architecture and a parallelized architecture, said signal data processor configured to:
receive, at said plurality of BSS modules, signals derived from the plurality of time-varying signals;
generate, using the plurality of BSS modules, a plurality of blind source separated signals by operating each filtering subsystem in accordance with a first filter coefficient (α) and a second filter coefficient (β);
transmit, based on the plurality of blind source separated signals, at least one pulse descriptor word parameter vector signal to a computing device of said signal data processor;
continuously update the first and second filter coefficients (α, β) based on the at least one pulse descriptor word parameter vector signal;
identify, using the computing device, the at least one parameter from the at least one pulse descriptor word parameter vector signal; and
output the at least one parameter from said signal data processor.

14. The signal data processor in accordance with claim 13 , wherein said signal data processor further comprises at least one signal denoising module configured to provide the signals to said plurality of BSS modules.

15. The signal data processor in accordance with claim 13 , wherein said signal data processor further comprises a plurality of summing tree modules.

16. The signal data processor in accordance with claim 13 , wherein each filtering subsystem comprises a plurality of filtering modules.

17. A method of processing a plurality of time-varying signals received at a sensor communicatively coupled to a signal data processor to identify at least one parameter of at least one of the plurality of time-varying signals, said method comprising:
receiving, at a plurality of blind source separation (“BSS”) modules of the signal data processor, signals derived from the plurality of time-varying signals, each BSS module of the plurality of BSS modules including a filtering subsystem, wherein the filtering subsystem within each BSS module has a pipelined architecture and a parallelized architecture;
generating, using the plurality of BSS modules, a plurality of blind source separated signals by operating each filtering subsystem in accordance with a set of filter coefficients;
transmitting, based on the plurality of blind source separated signals, at least one pulse descriptor word parameter vector signal to a computing device of the signal data processor;
continuously updating the filter coefficients based on the at least one pulse descriptor word parameter vector signal;
identifying, using the computing device, the at lea

Assignees

• Boeing Co
• Hrl Laboratories

Inventors

• Ray Gary Alan
• Petre Peter
• Martin Charles E
• Rao Shankar R

Classifications

• H03H17/04

  Recursive filters · CPC title

• G01S7/285

  Receivers · CPC title

• H04B1/0053 Primary

  with common antenna for more than one band · CPC title

• G01S7/2923

  based on data belonging to a number of consecutive radar periods · CPC title

• H03H2021/0034

  Blind source separation · CPC title