发明授权
- 专利标题: Magnetic resonance method and device in which nonlinearities in the receiver are compensated on after signal reception
- 专利标题(中): 信号接收后接收机非线性的磁共振方法和装置被补偿
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申请号: US433638申请日: 1989-11-08
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公开(公告)号: US5172059A公开(公告)日: 1992-12-15
- 发明人: Johannes H. den Boef
- 申请人: Johannes H. den Boef
- 申请人地址: NY New York
- 专利权人: U.S. Philips Corp.
- 当前专利权人: U.S. Philips Corp.
- 当前专利权人地址: NY New York
- 优先权: NLX8802732 19881108
- 主分类号: G01R33/32
- IPC分类号: G01R33/32 ; A61B5/055 ; G01R33/36 ; G01R33/565
摘要:
Notably for MR spectroscopy it is important than an MR receiver for resonance signals has a large dynamic range in order to enable the reproduction of comparatively strong as well as comparatively to the weak signals in a spectrum. Therefore, the MR receiver should be linear to a high degree. Otherwise, for example in proton spectra metabolites are liable to be masked by peaks in tne spectrum which are caused by harmonic distortion and notably intermodulation distortion. An MR method is proposed for increasing the dynamic range of the MR receiver by software compensation of non-linearities in the MR receiver by means of a counter-distortion function.
公开/授权文献
- US5613633A Solder apparatus and method 公开/授权日:1997-03-25
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