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单词 Intermodulation distortion
释义

Intermodulation distortion

英语百科

Intermodulation

(重定向自Intermodulation distortion)
A frequency spectrum plot showing intermodulation between two injected signals at 270 and 275 MHz (the large spikes).  Visible intermodulation products are seen as small spurs at 280 MHz and 265 MHz.
Distribution of third-order intermodulations: in blue the position of the fundamental carriers, in red the position of dominant IMPs, in green the position of specific IMPs.

Intermodulation (IM) or intermodulation distortion (IMD) is the amplitude modulation of signals containing two or more different frequencies, caused by nonlinearities in a system. The intermodulation between each frequency component will form additional signals at frequencies that are not just at harmonic frequencies (integer multiples) of either, like harmonic distortion, but also at the sum and difference frequencies of the original frequencies and at multiples of those sum and difference frequencies.

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更新时间:2025/6/18 18:13:16