Devices and methods for diversity signal enhancement and cosite cancellation
AssigneePhysical Devices, LLC
InventorFrederick Vosburgh
Life of this patent
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Abstract
Devices and methods for providing enhanced diversity reception and cosite cancellation are disclosed. According to one aspect, the subject matter described herein includes a device for providing enhanced diversity reception and cosite cancellation. The device includes a transmit chain connected to a circulator further connected to first antenna and to a combiner. The combiner is connected to anti-cosite circuitry and to first detector. The anti-cosite circuitry is further connected to a secondary antenna. The first detector is further connected to a receive chain.
Claims22
A device for providing enhanced diversity reception and/or cosite cancellation, the device comprising:
- a first antenna for transmitting and receiving signals, including receiving a first signal having cosite content caused by the transmitting of the signals using the first antenna;
- a second antenna for receiving a diversity signal including cosite content caused by the transmitting of the signals using the first antenna;
- a controller for deterministically calculating a desired phase shift of the diversity signal to reduce the cosite content of the first signal;
- adjusting circuitry coupled to the controller for applying the deterministically calculated phase shift to the diversity signal;
- and
- a combiner for combining the diversity signal with the deterministically calculated phase shift with the first signal and reducing the cosite content of the first signal.
A method for providing enhanced diversity reception and/or cosite cancellation, the method comprising:
- transmitting and receiving signals using a first antenna;
- receiving a first signal from the first antenna, wherein the first signal includes cosite content caused by the transmitting of the signals using the first antenna;
- receiving a diversity signal with a second antenna, wherein the diversity signal includes cosite content caused by the transmitting of the signals using the first antenna;
- adjusting the diversity signal to provide an adjusted diversity signal, wherein adjusting the diversity signal includes providing a controller that deterministically calculates a desired phase shift of the diversity signal to reduce the cosite content of the first signal and adjustment circuitry coupled to the controller for applying the deterministically calculated phase shift to the diversity signal;
- and
- combining the adjusted diversity signal and the first signal to provide enhanced receiving of the first signal, wherein combining the adjusted diversity signal and the first signal includes combining the diversity signal with the deterministically calculated phase shift with the first signal and reducing the cosite content of the first signal.
Dependencies are inferred from the claim text.