发明授权
- 专利标题： Method of generating sinusoidal signal
- 专利标题（中）： 产生正弦信号的方法
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申请号： US10797951申请日： 2004-03-11
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公开(公告)号： US07321911B2公开(公告)日： 2008-01-22
- 发明人: Petri Jarske
- 申请人： Petri Jarske
- 申请人地址： FI Espoo
- 专利权人： Nokia Corporation
- 当前专利权人： Nokia Corporation
- 当前专利权人地址： FI Espoo
- 代理机构： Hollingsworth & Funk, LLC
- 优先权： FI20030389 20030314
- 主分类号： G06F1/02
- IPC分类号： G06F1/02
摘要：
Methods, devices and a software product for generating a sinusoidal signal of a desired frequency at a desired sampling rate. If the frequency is higher than the upper limit, a coefficient is determined as a function of the sampling rate and a sample of the first output sample sequence is determined as a linear combination of the coefficient and two previous output samples. The first output sample sequence is decimated by the sampling rate. If the frequency is lower than the lower limit, the coefficient is determined as a function of the sampling rate and the sample of the first output sample sequence is determined as a linear combination of the coefficient and two previous output samples. The first output sample sequence is multiplied so as to generate a second output sample sequence. The second output sample sequence is decimated by the sampling rate.
公开/授权文献
- US20040249874A1 Method of generating sinusoidal signal 公开/授权日：2004-12-09
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