US 2017/0364731 A1 · ADAPTIVE SIGNAL DETECTION AND SYNTHESIS ON TRACE DATA

Abstract

Systems and methods for detecting, decoupling and quantifying unresolved signals in trace signal data in the presence of noise with no prior knowledge of the signal characteristics (e.g., signal peak location, intensity and width) of the unresolved signals. The systems and methods are useful for analyzing any trace data signals having one or multiple overlapping constituent signals and particularly useful for analyzing data signals which often contain an unknown number of constituent signals with varying signal characteristics, such as peak location, peak intensity and peak width, and varying resolutions. A general signal model function is assumed for each unknown, constituent signal in the trace signal data. In a first phase, the number of constituent signals and signal characteristics are determined automatically in a parallel fashion by executing multiple simultaneous evaluations iteratively starting with an initial set of trial signals. Making simultaneous evaluations and systematically reducing the number of trial signals allows for convergence to an optimal, final set of signals in a very fast and efficient manner.

Claims27

Dependent claims

A processor-implemented method of processing a trace signal to determine one or more unknown signal components of the trace signal, the method comprising:

receiving trace signal data, the trace signal data including a plurality N of data points and representing at least M signals within a bandwidth defining the trace data, wherein M is an integer greater than or equal to 1;
defining an initial set of signal components to be the number N of data points, wherein initial signal locations for each of the signal components of the initial set of signal components correspond to the locations within the bandwidth of the number N of data points;
a) simultaneously performing a numerical method signal extraction calculation on each signal component in the initial set of signal components;
b) determining a signal amplitude value for each signal component of the initial set of signal components based on the extraction calculation;
c) removing from the initial set of signal components, or attenuating, each signal component determined to have a negative signal amplitude value based on the extraction calculation to produce an adjusted set of signal components;
d) determining a final set of signal components by iteratively repeating steps a)-c) using the adjusted set of signal components as the initial set of signal components until no signal component has a negative amplitude value based on the extraction calculation;
and thereafter
outputting signal locations and signal intensities of one or more signal components of the trace signal based on the final set of signal components.

5 more elements

A computer readable medium storing code, which when executed by one or more processors cause the one or more processors to implement a method of processing a trace signal to determine one or more unknown signal components of the trace signal, the code including instructions to:

receive trace signal data, the trace signal data including a plurality N of data points and representing at least M signals within a bandwidth defining the trace data, wherein M is an integer greater than or equal to 1;
define an initial set of signal components to be the number N of data points, wherein initial signal locations for each of the signal components of the initial set of signal components correspond to the locations within the bandwidth of the number N of data points;
a) simultaneously perform a numerical method signal extraction calculation on each signal component in the initial set of signal components;
b) determine a signal amplitude value for each signal component of the initial set of signal components based on the extraction calculation;
c) remove from the initial set of signal components, or attenuating, each signal component determined to have a negative signal amplitude value based on the extraction calculation to produce an adjusted set of signal components;
determine a final set of signal components by iteratively repeating a)-c) using the adjusted set of signal components as the initial set of signal components until no signal component has a negative amplitude value based on the extraction calculation;
and thereafter output signal locations and signal intensities of one or more signal components of the trace signal based on the final set of signal components.

4 more elements

A processing device that processes a trace signal to determine one or more unknown signal components of the trace signal, the device comprising:

a processor;
and
a memory storing code executable by the processor;
wherein the code includes instructions, which when executed by the processor, cause the processor to:
receive trace signal data, the trace signal data including a plurality N of data points and representing at least M signals within a bandwidth defining the trace data, wherein M is an integer greater than or equal to 1;
define an initial set of signal components to be the number N of data points, wherein initial signal locations for each of the signal components of the initial set of signal components correspond to the locations within the bandwidth of the number N of data points;
a) simultaneously perform a numerical method signal extraction calculation on each signal component in the initial set of signal components;
b) determine a signal amplitude value for each signal component of the initial set of signal components based on the extraction calculation;
c) remove from the initial set of signal components, or attenuating, each signal component determined to have a negative signal amplitude value based on the extraction calculation to produce an adjusted set of signal components;
determine a final set of signal components by iteratively repeating a)-c) using the adjusted set of signal components as the initial set of signal components until no signal component has a negative amplitude value based on the extraction calculation;
and thereafter
output signal locations and signal intensities of one or more signal components of the trace signal based on the final set of signal components.

9 more elements

Dependencies are inferred from the claim text.

Adaptive signal detection and synthesis on trace data

Life of this patent

Adaptive signal detection and synthesis on trace data

Life of this patent

Abstract

Claims27