Fixed point FIR filter with adaptive truncation and clipping and wireless mobile station using same

作者: Tao Zhang

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摘要: A fixed point finite impulse response (FIR) filter comprising: 1) an input stage for receiving signal as a sequence of samples i) delay elements connected in series and shifting N sequential samples; ii) multipliers, each multiplier selected one the from multiplying sample by corresponding coefficient to produce intermediate product; iii) summer adding products multipliers output sum comprising 2) truncating k least significant bits (LSBs) samples, wherein is variable number.

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