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US 7,236,778 B2Granted
System and method for testing transceivers
AssigneeNorthrop Grumman Corporation
InventorHeinz H. Schreiber
Life of this patent
Estimating the term…
Abstract
A method includes communicating a first signal at a transmitter. The first signal has a first frequency. The method also includes receiving a second signal at a receiver. The second signal has a second frequency, and the second signal comprises the first signal converted from the first frequency to the second frequency. In addition, the method includes determining whether the transmitter and receiver are functional using at least one of the first and second signals.
Claims18
A method, comprising:
- communicating a first signal at a transmitter, the first signal having a first frequency;
- transmitting the first signal using an antenna;
- receiving a second signal at a receiver, the second signal having a second frequency, the second signal comprising an intermodulation product produced using an echo of the first signal, converted from the first frequency to the second frequency by means of the echo;
- and
- determining whether the transmitter and receiver are functional using the second signal.
2 more elements
An apparatus, comprising:
- a transmitter operable to communicate a first signal, the first signal having a first frequency;
- a receiver connected to an antenna operable to receive a second signal, the second signal communicated from the antenna to the receiver and having a second frequency, the second signal comprising an intermodulation product produced using an echo of the first signal converted from the first frequency to the second frequency by means of the echo;
- and
- a processor operable to determine whether the transmitter and receiver are functional using the second signal.
1 more element
A method, comprising:
- receiving a first signal radiated from a transmitter, the first signal having a first frequency (f1);
- generating a second signal, the second signal having a second frequency (f2), the second signal comprising a third order intermodulation product produced using the first signal;
- radiating the second signal to a receiver;
- and
- determining whether the transmitting and receiving are functional using the second signal.
2 more elements
A method, comprising:
- communicating a modulated first signal from a transmitter to a mixer, the first signal having a first frequency;
- generating at the mixer a second signal, the mixer operating at a second frequency, the second signal comprising a third-order intermodulation product having a third frequency that equals twice the first frequency minus the second frequency;
- receiving the second signal at a receiver;
- and
- determining whether the transmitter and receiver are functional by at least one of comparing contents of the first and second signals and determining a sensitivity of the receiver using a power level of the transmitter.
2 more elements
Dependencies are inferred from the claim text.