发明名称 |
FMCW SENSOR |
摘要 |
The invention relates to an FMCW sensor, generating a send signal on the basis of a high frequency from a frequency oscillator (FFO) and a modulated low frequency (mod(t)) from a second oscillator (VCO). The modulated frequency is converted into a reference signal (ref(t)) in a delay line with a surface wave element (SAW). A transmission mixer (TMIX) having a hybrid coupler with a 90~ phase difference and diode terminals are used in the send/receive device. The measuring signal (m(t)) and the reference signal are evaluated in an evaluation device (AE).
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申请公布号 |
CA2315786(A1) |
申请公布日期 |
1999.03.04 |
申请号 |
CA19982315786 |
申请日期 |
1998.07.31 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
HEIDE, PATRIC;NALEZINSKI, MARTIN |
分类号 |
G01S7/02;G01S7/35;G01S7/40;G01S13/34;H03D7/12;H03D9/06;(IPC1-7):G01S7/35 |
主分类号 |
G01S7/02 |
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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