发明名称 |
Reference frequency spur cancellation in synthesized measurement receivers |
摘要 |
<p>Reference frequency spur cancellation in a synthesized measurement receiver is achieved by determining for any given frequency to which the receiver is tuned a list of integer multipliers of the reference frequency that produce spurious signals in the receiver's passband. For those values the amplitude and phase for each spurious signal is determined in the digital domain and subtracted from the digital signal from the receiver. The reference frequency is then offset slightly and the measurement repeated. The maximum values between each measurement are combined to produce a measurement for the input signal without spurious signals. <IMAGE></p> |
申请公布号 |
EP1248395(A2) |
申请公布日期 |
2002.10.09 |
申请号 |
EP20020252429 |
申请日期 |
2002.04.03 |
申请人 |
TEKTRONIX, INC. |
发明人 |
GUMM, LINLEY F.;KUNTZ, THOMAS L.;CHEN, XIAOFEN |
分类号 |
G01R23/173;H04B1/26;H04B15/06;H04L27/00;(IPC1-7):H04B1/28;H04B1/12;H04B15/04 |
主分类号 |
G01R23/173 |
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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