Interference cancellation system employing photonic sigma delta modulation and optical true time delay
文献类型：专利
| 作者 | TAYLOR, GEOFF W.; CAI, JIANHONG; UPP, DANIEL C. |
| 发表日期 | 2004-07-29 |
| 专利号 | US20040146237A1 |
| 著作权人 | UNIVERSITY OF CONNECTICUT, THE |
| 国家 | 美国 |
| 文献子类 | 发明申请 |
| 其他题名 | Interference cancellation system employing photonic sigma delta modulation and optical true time delay |
| 英文摘要 | Interference caused by the propagation of a transmit signal transmitted from a transmit antenna to a receive antenna is effectively cancelled by an improved signal cancellation system. The system includes an interference cancellation signal generator that generates a time-delayed and amplitude-reduced representation of said transmit signal. A summing stage is operably coupled to the interference cancellation signal generator and the receive antenna. The summing stage subtracts the time-delayed and amplitude-reduced representation of the transmit signal from a receive signal to substantially cancel the interference. The interference cancellation signal generator preferably includes a novel programmable optical delay line that introduces a variable amount of optical delay to an optical signal derived from said transmit signal in addition to a thyristor-based sigma delta modulator that converts samples of the transmit signal to into a digital signal in the optical domain. |
| 公开日期 | 2004-07-29 |
| 申请日期 | 2003-06-24 |
| 状态 | 授权 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/53060]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | UNIVERSITY OF CONNECTICUT, THE |
| 推荐引用方式 GB/T 7714 | TAYLOR, GEOFF W.,CAI, JIANHONG,UPP, DANIEL C.. Interference cancellation system employing photonic sigma delta modulation and optical true time delay. US20040146237A1. 2004-07-29. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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