发明名称 |
FMCW radar with refined measurment using fixed frequencies |
摘要 |
One embodiment is directed to a method for operating a radar altimeter. The method includes transmitting a radar signal at a first frequency, ramping the frequency of the radar signal from the first frequency to a second frequency, and transmitting the radar signal at the second frequency. The reflections can be processed by determining an approximate distance to a target based reflections of the frequency ramp and the approximate distance can be refined based on a phase difference between a reflection of the radar signal transmitted at the first frequency and a reflection of the radar signal transmitted at the second frequency. |
申请公布号 |
EP2863239(A1) |
申请公布日期 |
2015.04.22 |
申请号 |
EP20140184291 |
申请日期 |
2014.09.10 |
申请人 |
HONEYWELL INTERNATIONAL INC. |
发明人 |
VACANTI, DAVID C. |
分类号 |
G01S7/41;G01S13/02;G01S13/34;G01S13/36;G01S13/88 |
主分类号 |
G01S7/41 |
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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