发明名称 |
Systems and methods for improving bearing availability and accuracy for a tracking filter |
摘要 |
<p>In an example system and method for improving bearing availability and accuracy in a traffic collision-avoidance system (TCAS), if only a single phase-difference value is received for one of two two-element antennas, a processor determines an expected maximum antenna element phase-difference value for the elements of the two-element antenna that did not receive a phase-difference value for a target signal source; estimates a phase-difference value for the two-element antenna that did not include a phase-difference value, based on the expected maximum antenna element phase-difference value and a previously determined predicted bearing value; and calculates bearing based on the estimated phase-difference value and a phase-difference value received from the other two-element antenna. The determination is based on previously received signals associated with the target signal source and based on elevation information of the target signal source and a predefined maximum antenna element phase-difference value for the respective antenna element pair.</p> |
申请公布号 |
EP2725379(A1) |
申请公布日期 |
2014.04.30 |
申请号 |
EP20130186964 |
申请日期 |
2013.10.01 |
申请人 |
HONEYWELL INTERNATIONAL INC. |
发明人 |
BRANDAO, RUY C.;SHESTAK, EDUARD;DOUGHERTY, IAN |
分类号 |
G01S3/02;G01S3/46 |
主分类号 |
G01S3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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