Communication signal rate detection system
AssigneeNorthrop Grumman Systems Corporation
InventorChristopher W. Walker
Life of this patent
Estimating the term…
Abstract
One example includes a rate detector system. The rate detector system includes a plurality of energy detectors configured to receive an input signal and to filter separate respective frequency bands associated with the input signal to generate separate respective energy profiles. The system also includes an energy processing component configured to determine a symbol rate of the input signal based on a statistical evaluation of a ratio of the separate respective energy profiles.
Claims18
A rate detector system comprising:
- a plurality of energy detectors to receive an input signal and to filter separate respective frequency bands associated with the input signal to generate separate respective energy profiles;
- and
- a rate processing component to determine a symbol rate of the input signal based on a statistical evaluation of a ratio of the separate respective energy profiles.
A method for detecting a symbol rate of an input signal, the method comprising:
- providing the input signal to a first energy detector;
- filtering the input signal based on a first bandwidth associated with the first energy detector to generate a first energy profile of the input signal;
- providing the input signal to a second energy detector;
- filtering the input signal based on a second bandwidth associated with the second energy detector to generate a second energy profile of the input signal, the second bandwidth being partially overlapping with respect to the first bandwidth;
- generating a ratio of the first and second energy profiles;
- statistically analyzing the ratio of the first and second energy profiles;
- and
- determining the symbol rate of the input signal based on the statistical analysis of the ratio of the first and second energy profiles.
A receiver system comprising:
- an antenna to receive a wireless input signal;
- an analog-to-digital converter (ADC) to convert the wireless input signal to a digital input signal;
- a rate detector to filter separate respective frequency bands associated with the input signal to generate separate respective energy profiles and to determine a symbol rate of the input signal based on a statistical evaluation of a ratio of the separate respective energy profiles;
- and
- a demodulator to receive and demodulate the digital input signal based on the determined symbol rate of the digital input signal.
Dependencies are inferred from the claim text.