HP Labs Technical Reports

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An Architecture for Non-Linear Noise Filtering Via Piecewise Linear Compression

Konstantinides, Konstantinos; Natarajan, Balas K.



Abstract: We present an architecture for non-linear noise filtering using a compression algorithm based on piecewise linear approximation. In contrast to spectral filters, the proposed technique does not require a priori knowledge of the noise and signal characteristics and the processing requirements are independent of its noise rejection properties. The architecture includes two multiplier-accumulator units, an adder, registers, and a short look-up table. The proposed implementation allows an output sample to be generated every four cycles on average.

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