System and method for emitter detection
AssigneeThe Boeing Company
InventorsPeter S. Wittenberg, Brian D. Cordill
Life of this patent
Estimating the term…
Abstract
A signal receiver includes receive circuitry. The signal receiver further includes a processor coupled to the receive circuitry and configured to receive, from a filter, a stream of samples including a first set of samples. A data rate of an input of the filter may correspond to a data rate of an output of the filter. The first set of samples includes multiple samples. The processor is further configured to perform a detection operation on the first set of samples. The processor is further configured to detect a signal emitter based on the detection operation.
Claims20
A signal receiver comprising:
- receive circuitry to receive a signal;
- a filter configured to generate sets of streaming output based on the signal, each set of streaming output comprising samples;
- and
- a processor coupled to the receive circuitry and configured to, for each set of streaming output:
- determine, based on in-phase and quadrature representations of each sample and an estimated system noise level of the receive circuitry, whether each sample satisfies a signal to noise threshold;
- detect a signal emitter based on at least a first number of samples in a particular number of consecutive samples satisfying the signal to noise threshold;
- and
- generate an indication of emitter detection based on detecting the signal emitter.
A signal receiver comprising:
- receive circuitry to receive a signal;
- a filter configured to generate sets of streaming output based on the signal, each set of streaming output comprising samples;
- and
- a processor coupled to the receive circuitry and configured to, for each set of streaming output:
- determine whether a signal to noise ratio for each sample satisfies a signal to noise threshold, the signal to noise ratio based on a magnitude of an in-phase and quadrature representation of each sample and based on an estimated system noise level of the receive circuitry;
- and
- detect a signal emitter based on at least a first number of samples in a particular number of consecutive samples satisfying the signal to noise threshold;
- and
- generate an indication of emitter detection based on detecting the signal emitter.
A method comprising:
- receiving, at a processor from a filter, sets of streaming output, each set of streaming output comprising samples;
- and
- for each set of samples:
- determining, at the processor, whether each sample satisfies a signal to noise threshold based on in-phase and quadrature representations of each sample and an estimated system noise level;
- detecting, at the processor, a signal emitter based on at least a first number of samples in a particular number of consecutive samples satisfying the signal to noise threshold;
- and
- generating, at the processor, an indication of emitter detection based on detecting the signal emitter.
Dependencies are inferred from the claim text.