How do you implement the overlap-add method of convolution?

Question

Accepted Answer

Overlap-add method of convolution is implemented by dividing the input signal into overlapping segments and convolving each segment with a filter.

Divide the input signal into overlapping segments
Apply the filter to each segment
Add the convolved segments together to get the output signal
The length of each segment should be greater than or equal to the length of the filter
The overlap between adjacent segments should be greater than or equal to the length of the filter minus one

Accepted Answer

Circular convolution with the overlap–add method: When sequence x[n] is periodic, and Nx is the period, then y[n] is also periodic, with the same period. To compute one period of y[n], Algorithm 1 can first be used to convolve h[n] with just one period of x[n]

Accepted Answer

Delay one input
Use MAC elements with DSP blocks

Accepted Answer

Break the long sequence,x(n) , into signals of length L . ...
Use the DFT-based method to calculate the convolution of each xm(n) x m ( n ) with h(n)

How do you implement the overlap-add method of convolution?

Top Qualcomm Hardware Engineer interview questions & answers

Popular interview questions of Hardware Engineer

Top HR questions asked in Qualcomm Hardware Engineer