发明名称 |
Echo based detecting apparatus employing signal generator and correlator |
摘要 |
An ultrasonic detecting apparatus which includes a sequence generating means and a transmission signal generating means for generating a transmission signal corresponding to the sequence. The detecting apparatus also includes a transmitting means to transmit waves, which may be ultrasonic waves, to an object and a receiving means for receiving an echo corresponding to the transmission signal. A correlation operation means performs a correlation operation with respect to the echo. In another general aspect, the sequence generating means may generate more than one sequence, some of whose auto-correlation functions produce substantially zero sidelobe in the summed result. In a further general aspect, the sequence generating means generates two or more sequences, with each of the sequences being different from the others and having substantially the same auto-correlation function as the others.
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申请公布号 |
US5417114(A) |
申请公布日期 |
1995.05.23 |
申请号 |
US19920977258 |
申请日期 |
1992.11.16 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
WADAKA, SHUSOU;MISU, KOICHIRO;NAGATSUKA, TSUTOMU;KOIKE, MITSUHIRO |
分类号 |
G01N29/06;G01N29/07;G01N29/11;G01N29/30;G01N29/34;G01N29/40;G01N29/44;G01N29/46;G01N29/50;(IPC1-7):G01N29/10;G06F17/15 |
主分类号 |
G01N29/06 |
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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