发明名称 |
METHOD OF SYSTEM COMPENSATION TO REDUCE THE EFFECTS OF SELF INTERFERENCE IN FREQUENCY MODULATED CONTINUOUS WAVE ALTIMETER SYSTEMS |
摘要 |
An altimeter system is provided. The altimeter system includes a receiver mixer including an antenna-input and a local-oscillator-input; a transceiver circulator communicatively coupled to an antenna via a transmission line having a selected length and communicatively coupled to the antenna-input of the receiver mixer; and a transmitter configured to output a transmitter signal to the antenna via the transceiver circulator. The transmitter signal is frequency modulated with a linear ramp. The transmitter is communicatively coupled to the receiver mixer to input a local oscillator signal at the local-oscillator-input of the receiver mixer. The receiver mixer is communicatively coupled to input a target-reflected signal from the antenna at the antenna-input of the receiver mixer. The selected length of the transmission line is set so that a composite-leakage signal at the antenna-input of the receiver mixer has a linear phase across a sweep bandwidth. |
申请公布号 |
US2014028491(A1) |
申请公布日期 |
2014.01.30 |
申请号 |
US201213559834 |
申请日期 |
2012.07.27 |
申请人 |
FERGUSON PAUL DAVID;HONEYWELL INTERNATIONAL INC. |
发明人 |
FERGUSON PAUL DAVID |
分类号 |
G01S13/08 |
主分类号 |
G01S13/08 |
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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