Systems and methods for cancelling cross polarization interference in wireless communication using polarization diversity
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04B-001/10
H04B-015/00
H04B-007/00
H04B-007/10
출원번호
US-0520309
(2014-10-21)
등록번호
US-9136950
(2015-09-15)
발명자
/ 주소
Vann, Emerick
출원인 / 주소
Aviat U.S., Inc.
대리인 / 주소
Sheppard, Mullin, Richter & Hampton LLP
인용정보
피인용 횟수 :
2인용 특허 :
6
초록▼
An exemplary system may comprise a first and second device and a first and second power splitter coupled to a single cable. The first device may be configured to receive a first noise signal of a first polarization, and to adaptively cancel, based on the first noise signal, first noise from the nois
An exemplary system may comprise a first and second device and a first and second power splitter coupled to a single cable. The first device may be configured to receive a first noise signal of a first polarization, and to adaptively cancel, based on the first noise signal, first noise from the noisy signal associated with an orthogonal polarization. The second device may be configured to receive a second noise signal of a second polarization, and to adaptively cancel second noise from the noisy signal associated with an orthogonal polarization based on the second noise signal. The first power splitter may be configured to receive the first noise signal from the single cable and provide the first noise signal to the first device. The second power splitter may be configured to receive the second noise signal from the single cable and provide the second noise signal to the second device.
대표청구항▼
1. A system comprising: a first device configured to receive a first received signal based on a vertically polarized signal from an antenna, to receive a first noise signal based on a horizontally polarized signal, and to adaptively cancel first noise from the first received signal based on the firs
1. A system comprising: a first device configured to receive a first received signal based on a vertically polarized signal from an antenna, to receive a first noise signal based on a horizontally polarized signal, and to adaptively cancel first noise from the first received signal based on the first noise to generate a first clean signal;a second device configured to receive a second received signal based on the horizontally polarized signal from the antenna, to receive a second noise signal based on the vertically polarized signal, and to adaptively cancel second noise from the second received signal based on the second noise signal to generate a second clean signal;a single cable;a first power splitter coupled to the first device and the single cable, the first power splitter configured to receive the first noise signal from the single cable, to provide the first noise signal to the first device, to receive the second noise signal from the first device, and to provide the second noise signal to the single cable; anda second power splitter coupled to the second device and the single cable, the second power splitter configured to receive the second noise signal from the single cable, to provide the second noise signal to the second device, and to provide the first noise signal from the second device to the single cable. 2. The system of claim 1, further comprising a combiner configured to receive and combine the first and second clean signals to generate a combined signal. 3. The system of claim 1, wherein the horizontally polarized signal and the vertically polarized signal contain substantially similar information. 4. The system of claim 1, further comprising a control module configured to determine if fading conditions exist in a wireless channel between the antenna and a transmitter, the control module enabling the first device and the second device to generate the first and second clean signals, respectively, based on the determination. 5. The system of claim 1, wherein adaptively cancelling the first noise from the first received signal comprises equalizing the first received signal using the first noise signal to attenuate at least some of the noise in the first received signal. 6. The system of claim 1, wherein adaptively cancelling the second noise from the second received signal comprises equalizing the second received signal using the second noise signal to attenuate at least some of the noise in the second received signal. 7. The system of claim 1, wherein at least some of the noise of the first noise signal and at least some of the noise of the second noise signal is a result of cross polarization interference. 8. The system of claim 1, further comprising an orthogonal transducer coupled to the antenna, to the first device, and to the second device, the orthogonal transducer configured to: receive the vertically polarized signal and the horizontally polarized signal, provide the vertically polarized signal to the first device, and provide the horizontally polarized signal to the second device. 9. The system of claim 8, further comprising a waveguide filter configured to filter the vertically polarized signal and the horizontally polarized signal from the antenna and provide the filtered vertically polarized signal and the filtered horizontally polarized signal to the orthogonal transducer. 10. The system of claim 1, wherein the first noise signal is substantially similar to the second received signal. 11. A method comprising: receiving, by a first device, a first received signal based on a vertically polarized signal from an antenna;receiving, by the first device, a first noise signal based on a horizontally polarized signal, the first device receiving the first noise signal through a single cable;adaptively cancelling first noise from the first received signal based on the first noise signal to generate a first clean signal;receiving, by a second device, a second received signal based on the horizontally polarized signal;receiving, by the second device, a second noise signal based on the vertically polarized signal from the antenna, the second device receiving the second noise signal through the single cable; andadaptively cancelling second noise from the second received signal based on the second noise signal to generate a second clean signal. 12. The method of claim 11, further comprising combining the first and second clean signals to generate a combined signal. 13. The method of claim 11, wherein the horizontally polarized signal and the vertically polarized signal contain substantially similar information. 14. The method of claim 11, further comprising determining if fading conditions exist in a wireless channel between the antenna and a transmitter and enabling generation of the first and second clean signals, respectively, based on the determination. 15. The method of claim 11, wherein adaptively cancelling the first noise from the first received signal comprises equalizing the first received signal using the first noise signal to attenuate at least some of the noise in the first received signal. 16. The method of claim 11, wherein adaptively cancelling the second noise from the second received signal comprises equalizing the second received signal using the second noise signal to attenuate at least some of the noise in the second received signal. 17. The method of claim 11, wherein at least some of the noise of the first noise signal and at least some of the noise of the second noise signal is a result of cross polarization interference. 18. The method of claim 11, further comprising: receiving, by an orthogonal transducer, the vertically polarized signal and the horizontally polarized signal;providing, by the orthogonal transducer, the vertically polarized signal to the first device; andproviding, by the orthogonal transducer, the horizontally polarized signal to the second device. 19. The method of claim 18, further comprising filtering, by a waveguide filter, the vertically polarized signal and the horizontally polarized signal and providing the filtered vertically polarized signal and the filtered horizontally polarized signal to the orthogonal transducer. 20. The method of claim 11, wherein the first noise signal is substantially similar to the second received signal. 21. A system comprising: a first transceiver means configured to receive a first received signal based on a vertically polarized signal from an antenna, to receive a first noise signal based on a horizontally polarized signal, and to adaptively cancel first noise from the first received signal based on the first noise signal to generate a first clean signal;a second transceiver means configured to receive a second received signal based on the horizontally polarized signal from the antenna, to receive a second noise signal based on the vertically polarized signal, and to adaptively cancel second noise from the second received signal based on the second noise signal to generate a second clean signal;a single cable;a first splitting means coupled to the first transceiver means and the single cable, the first splitting means configured to receive the first noise signal from the single cable, to provide the first noise signal to the first transceiver means, to receive the second noise signal from the first transceiver means, and to provide the second noise signal to the single cable; anda second splitting means coupled to the second transceiver means and the single cable, the second splitting means configured to receive the second noise signal from the single cable, to provide the second noise signal to the second transceiver means, and to provide the first noise signal from the second transceiver means to the single cable.
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