By Richard G. Lyons
This booklet is greater than only a compilation of the unique articles. all the fabric within the e-book has undergone cautious editorial overview and has additionally benefited from the suggestions of the readers of the journal; the result's a constant throughout all the articles. also, the authors have used this chance to incorporate the extra motives, purposes, and illustrations that can no longer be integrated within the unique articles as a result of area barriers.
Content:
Chapter 1 misplaced wisdom Refound: Sharpened FIR Filters (pages 1–9): Matthew Donadio
Chapter 2 Quantized FIR filter out layout utilizing Compensating Zeros (pages 11–24): Amy Bell, Joan Carletta and Kishore Kotteri
Chapter three Designing Nonstandard Filters with Differential Evolution (pages 25–32): Rainer Storn
Chapter four Designing IIR Filters with a Given three dB element (pages 33–41): Ricardo A. Losada and Vincent Pellissier
Chapter five Filtering methods for FSK Demodulation (pages 43–50): David Shiung, Huei?Wen Ferng and Richard Lyons
Chapter 6 lowering CIC clear out Complexity (pages 51–58): Ricardo A. Losada and Richard Lyons
Chapter 7 certain clear out layout (pages 59–72): Greg Berchin
Chapter eight Turbocharging Interpolated FIR Filters (pages 73–84): Richard Lyons
Chapter nine A most productive electronic clear out: The Two?Path Recursive All?Pass filter out (pages 85–104): Fred Harris
Chapter 10 speedy, exact Frequency Estimators (pages 105–115): Eric Jacobsen and Peter Kootsookos
Chapter eleven quick Algorithms for Computing Similarity Measures in signs (pages 117–126): James McNames
Chapter 12 effective Multi?tone Detection (pages 127–134): Vladimir Vassilevsky
Chapter thirteen Turning Overlap?Save right into a Multiband, blending, Downsampling filter out financial institution (pages 135–143): Mark Borgerding
Chapter 14 Sliding Spectrum research (pages 145–157): Eric Jacobsen and Richard Lyons
Chapter 15 one other Contender within the Arctangent Race (pages 159–163): Richard Lyons
Chapter sixteen High?Speed sq. Root Algorithms (pages 165–172): Mark Allie and Richard Lyons
Chapter 17 functionality Approximation utilizing Polynomials (pages 173–185): Jyri Ylostalo
Chapter 18 effective Approximations for the Arctangent functionality (pages 187–198): Sreeraman Rajan, Sichun Wang, Robert Inkol and Alain Joyal
Chapter 19 A Differentiator with a distinction (pages 199–202): Richard Lyons
Chapter 20 Recursive Discrete?Time Sinusoidal Oscillators (pages 203–222): Clay S. Turner
Chapter 21 Direct electronic Synthesis: a device for Periodic Wave new release (pages 223–237): Lionel Cordesses
Chapter 22 enforcing a ?? DAC in Fixed?Point mathematics (pages 239–245): Shlomo Engelberg
Chapter 23 effective 8?PSK/16?PSK iteration utilizing allotted mathematics (pages 247–263): Josep Sala
Chapter 24 Frequency reaction repayment with DSP (pages 265–276): Laszlo Hars
Chapter 25 producing oblong Coordinates in Polar Coordinate Order (pages 277–282): Charles Rader
Chapter 26 The Swiss military Knife of electronic Networks (pages 283–300): Richard Lyons and Amy Bell
Chapter 27 JPEG2000—Choices and Trade?offs for Encoders (pages 301–310): Amy Bell and Krishnaraj Varma
Chapter 28 utilizing Shift check in Sequences (pages 311–318): Charles Rader
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Extra info for Streamlining Digital Signal Processing: A Tricks of the Trade Guidebook
Example text
C′1(z) must be different from C1(z)). This affords the second cascaded section the opportunity to compensate for the quantization effects in the first section. 3. For nonlinear phase FIR filters the filter coefficients are no longer symmetric; consequently, (2–3) must be solved for both positive and negative frequencies to ensure that real coefficients are maintained. 4. The set of frequencies at which (2–3) is evaluated determines how well the compensated magnitude response matches the unquantized response.
Therefore, the adder and delay that can be removed from the comb section will typically be the ones that require the greatest number of bits in the entire comb section for a standard implementation of a CIC interpolator. So this trick enables us to remove the adder and delay in that section that will save us the greatest number of bits. However, this is not the case in the integrator section, where we remove the adder and delay that would require the least number of bits of the entire section (but still as many or more than any adder or delay from the comb section).
The CSA tree produces two outputs that must be summed, or vector-merged, to produce the final filter output. For the results presented here, we use a ripple carry adder for the vector merge, taking care to exploit special-purpose routing (carry chains) provided on Altera FPGAs to make ripple carry addition fast. Table 2-6 summarizes the hardware performance of the filters. Data formats for all signals are shown as (n, l), where n is the total number of bits, including the sign bit, and 2l is the weight of the least significant bit.