21 May 2014 Investigating the effects of digital filtering on digital modulations
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Digital filters are a basic building block of a communication system and can serve many diverse purposes such as: restricting a signal to a prescribed frequency band, separating a signal into two or more sub-bands, modifying the spectral content of a signal, modeling a communication channel, performing mathematical operations, reducing the noise content of a signal, etc. On occasion, digital filters are used to estimate the bandwidth of a digital modulation and this paper will investigate possible issues that can be encountered when using digital filters for this purpose.
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John Nieto, "Investigating the effects of digital filtering on digital modulations", Proc. SPIE 9103, Wireless Sensing, Localization, and Processing IX, 910302 (21 May 2014); doi: 10.1117/12.2050296; https://doi.org/10.1117/12.2050296

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