The range addressable hyperbolic tangent activation function for second order lattice-ladder neuron in a

fixed-point arithmetic is successfully implemented on xc7z020 FPGA chip.

When discrete-time systems are implemented in finite word length processor using

fixed-point arithmetic, nonlinearities are introduced due to quantization and overflow.

For performance optimization the controller code was implemented using

fixed-point arithmetic.

It employed ordinary base-10

fixed-point arithmetic, according to the museum statement.

Fixed-point arithmetic is often used for the computations because of the cost reasons--floating point calculations significantly increase the size of the design and make it more complex.

Using the 6-dB-per-bit rule, 16-bit recordings are capable of a 96-dB dynamic range, while 24-bit

fixed-point arithmetic improves the dynamic range to 144 dB.

After testing numerous competing products, we found the Filter Design Toolbox provided the best range of

fixed-point arithmetic parameters, filter architectures and operational statistics," said Richard Hewitt, senior DSP and software consultant at Toracomm.

Ada 83 supplied a

fixed-point arithmetic facility that was a close semantic match for the requirements of exact decimal computation.

The codec using 10 bit constants is lossy because of

fixed-point arithmetic.

Engineers can use these blocks to quickly create PID controllers, select PID structure, include integrator anti-windup logic, convert from continuous-time to discrete-time domain, and prepare the controller for implementation on a processor using

fixed-point arithmetic.

The company is also presenting a paper titled, "Exploration of Least-Squares Solutions of Linear Systems of Equations with

Fixed-Point Arithmetic," on Monday November 14th, at 2:00 p.

Until now, performing matrix factorization and inversion in hardware has been difficult because the algorithms are complex and highly sensitive to numerical problems, particularly when using

fixed-point arithmetic preferred in high-performance ICs.