System and method of determining the frequency of a coherent burst signal
AssigneeRosemount Aerospace Inc.
InventorAndrew Paul Mack
Life of this patent
Estimating the term…
Abstract
A method of determining accurately and expeditiously the frequency of a coherent signal from an incoming electrical signal is disclosed. The method comprises the steps of: generating a time sequence of sampled data signals from the incoming electrical signal; detecting the coherent signal in the time sequence of sampled data signals and generating a frequency estimate thereof; and determining the frequency of the detected coherent signal based on a function of the frequency estimate and a time segment of sampled data signals associated with the coherent signal. A system for performing the same is also disclosed.
Claims43
A method of determining the frequency of a coherent burst echo signal from an incoming electrical signal, said method comprising the steps of:
- generating a time sequence of sampled data signals from said incoming electrical signal;
- detecting said coherent burst echo signal in said time sequence of sampled data signals and generating a frequency estimate thereof;
- and
- determining the frequency of said detected coherent burst echo signal by demodulating a time segment of sampled data signals associated with the detected coherent burst echo signal with a frequency modulation signal representative of the frequency estimate of the coherent burst echo signal.
A system for determining the frequency of a coherent burst echo signal from an incoming electrical signal, said system comprising:
- means for generating a time sequence of sampled data signals from said incoming electrical signal;
- means for detecting said coherent burst echo signal in said time sequence of sampled data signals and generating a frequency estimate thereof;
- and
- processing means for demodulating a time segment of said sampled data signals associated with the detected coherent burst echo signal with a frequency modulation signal representative of said frequency estimate to determine the frequency of the detected coherent burst echo signal.
Dependencies are inferred from the claim text.