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In a communication system having a limited bandwidth, it is very important to analyze the spectrum. The spectral analysis is performed by measuring the power of signal within a specific frequency band. A commercial spectrum analyzer is usually employed for instrument equipment and cannot be utilized for a communication auxiliary device because of its high cost. In this study, the low-cost digital...
In this paper proposed is a cost-efficient architecture of FIR filter for portable digital spectrum analyzers. In order to reduce the hardware complexity, we split an FIR filter into multiple stages, which share the hardware resources such as multipliers and adders with one another. It makes sense because portable spectrum analyzers should be implemented with very low hardware costs and the real-time...
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