Fast, Simple Approximation of Functions

Use a Lookup Table And a Digital Multiplier To Implement Newton-Raphson Approximations

Now that low-cost, low-power digital multipliers and multiplier/accumulators are readily available (for example, ADI's ADSP-1000 device-family) it has become possible to implement many digital signal-processing (DSP) applications with high speed. The most common applications are in performing fast Fourier transforms (FFT) or filtering incoming data from either a real-time source or from stored data off-line. Read full article


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Matt Johnson