US 8,576,953 B2Granted

Identification of target signals in radio frequency pulsed environments

AssigneeThe United States of America as represented by the Secretary of the Navy

InventorsBrandon M. Sisley, Brad A. Prichard, Douglas N. Morgan, Craig A. Rouland

Life of this patent

Estimating the term…

Loading patent…

Abstract

A system and method for processing signals are disclosed. The method may be performed, at least partially, by the system. In one embodiment, the method comprises sending a first plurality of data including transmission parameters to a transmission system for transmitting of a first plurality of signals, receiving a second plurality of signals including signals based on the power level of the first plurality of signals, detecting in the second plurality of signals the signals corresponding to the first plurality of signals, outputting a second plurality of data based on the power levels of the second plurality of signals corresponding to the first plurality of signals, and receiving the second plurality of data and associating the first plurality of data and the second plurality of data based on the time when the first plurality of signals was transmitted and the second plurality of signals was received

Claims30

Dependent claims

A signal detection system for characterizing signals in a multiple signals environment comprising:

a first plurality of non-transitory machine readable instructions stored on a first recording medium section comprising a first data processing portion adapted to output a first plurality of data including a plurality of transmission parameters adapted to control transmission of a first plurality of signals from a transmitter;
and
a second plurality of non-transitory machine readable instructions stored on a second recording medium section comprising a first signal processing portion adapted to receive a second plurality of signals and output a second plurality of data, said second plurality of signals corresponding to at least one of said first plurality of signals and a third plurality of signals, and said first signal processing portion including a predetermined value for detecting said second plurality of signals corresponding to said first plurality of signals and outputting said second plurality of data based on the power levels of said second plurality of signals corresponding to said first plurality of signals,
wherein said first data processing portion receives said second plurality of data output from said first signal processing portion;
wherein said first signal processing portion comprises an antenna hardware unit including:
a second signal processing portion for outputting active signals and null signals based upon said power levels of said second plurality of signals corresponding to said first plurality of signals, wherein said active signals are relatively higher than said null signals by a first predetermined value;
a third signal processing portion for detecting PSK modulated signals in said second plurality of signals, said third signal processing portion generating a third data determined based upon null signals per unit time, comparing said third data with a second predetermined value, and outputting a fourth data if said third data exceeds said second predetermined value;
and
a fourth signal processing portion for detecting PSK modulated signals in said secondary plurality of signals, said fourth signal processing portion generating a fifth data determined based upon said active signals, comparing said fifth data with a third predetermined value, and outputting a sixth data if said fifth data exceeds said third predetermined value,
wherein said second plurality of data comprises at least one of said fourth data and said sixth data.

7 more elements

A method for characterizing signals in a multiple signals environment comprising the steps of:

outputting a first plurality of data including a plurality of transmission parameters that controls transmission of a first plurality of signals from a transmitter;
receiving a second plurality of signals corresponding to at least one of said first plurality of signals and a third plurality of signals;
detecting in said second plurality of signals said second plurality of signals corresponding to said first plurality of signals by comparing one or more characteristics of said second plurality of signals to one or more predetermined values;
outputting a second plurality of data based on the power levels of said second plurality of signals corresponding to said first plurality of signals;
and
receiving said second plurality of data and associating said first plurality of data and said second plurality of data based on the time when said first plurality of signals was transmitted and said second plurality of signals was received;
wherein said second plurality of signals comprise active signals and null signals where said active signals are relatively higher than said null signals by first predetermined value, and wherein said detecting step includes:
outputting a third data determined based upon a number of null signals per unit time;
comparing said third data with a second predetermined value and outputting a fourth data if said third data exceeds said second predetermined value;
outputting a fifth data determined based upon a number of active signals per unit time;
and
comparing said fifth data with a third predetermined value and outputting a sixth data if said fifth data exceeds said third predetermined value.

9 more elements

Dependencies are inferred from the claim text.