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What are coefficients in filter?
The filter coefficients are the coefficients of the difference equation. If your filter is an FIR filter, then the filter coefficients are the values of the impulse response. If you have an IIR filter, then the filter coefficients are not the same as the impulse response.
What is digital filter coefficient?
Discrete-Time Signal Processing Filter coefficients are represented by a finite number of bits, commonly in the range of 8 to 16 bits. This results in the implementation of a filter that differs slightly from the original design.
How are the coefficients of a filter determined?
As we have seen often in the course of this Digital Signal Processing course, the design of digital filters involves finding the coefficients of the filter. For computing and evaluating the coefficients of the digital system, we use infinite precision arithmetic.
How is quantization of filter coefficients in digital filter design?
For computing and evaluating the coefficients of the digital system, we use infinite precision arithmetic. Infinite precision arithmetic is basically when we use numbers whose number of digits is only limited by the available memory of the system. This is done when the speed of calculations is not an issue, but the accuracy is.
How is the filter coefficient used in DSP?
It is used to determine what to write in C and what to write in assembly. It states that a DSP application generally spends 90% of its time in 10% of the code. This 10% of the code should be written in assembly, and in this case the code is the FIR filter code.
How are the Poles and zeros of a filter determined?
The location of poles and zeros of any digital filter directly depends on the value of the filter coefficients. But since we are quantizing the values of the filter coefficients to fit them into the register, there will be a change in the values of the poles and zeros.