Frequency modulation detection systems, devices, and methods
AssigneeThe MITRE Corporation
InventorBrandt Lomen
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Abstract
Systems, devices, and methods for detecting frequency modulation information are disclosed. For example, these systems, devices, and methods are used for detecting phase-shift keying (PSK) information, linear frequency modulation (LFM) information, and signal source direction. In some embodiments, the method comprises receiving a first signal, receiving a second signal, which is a delayed version of the first signal, mixing the first signal and the second signal to generate a mixed signal, and determining, based on the mixed signal, one or more of the PSK information, the LFM in formation, and the signal source direction.
Claims21
A method for determining frequency modulation information, the method comprising:
- receiving a first signal;
- receiving a second signal, wherein the second signal is a delayed version of the first signal;
- mixing the first signal and the second signal to generate a mixed signal;
- and
- determining, based on the mixed signal, one or more of phase-shift keying (PSK) information associated with the first signal and linear frequency modulation (LFM) information associated with the first signal.
A system, comprising:
- a mixer configured to:
- receive a first signal;
- receive a second signal, wherein the second signal is a delayed version of the first signal;
- and
- mix the first signal and the second signal to generate a mixed signal;
- and
- one or more processors configured to perform a method comprising determining, based on the mixed signal, one or more of phase-shift keying (PSK) information associated with the first signal and linear frequency modulation (LFM) information associated with the first signal.
A non-transitory computer-readable medium storing one or more instructions, which, when executed by one or more processors of a system, cause the system to perform a method comprising:
- receiving a first signal;
- receiving a second signal, wherein the second signal is a delayed version of the first signal;
- mixing the first signal and the second signal to generate a mixed signal;
- and
- determining, based on the mixed signal, one or more of phase-shift keying (PSK) information associated with the first signal and linear frequency modulation (LFM) information associated with the first signal.
Dependencies are inferred from the claim text.