11.2. The window is moved by signal

Content and key concepts

On the previous page, the signal becomes separate accounts.
At each location, you get the sum of the work of the window and the coefficients. You have to take into account the core revolution for a rigid wrapping.
A small window passes through a signal or image. Each exit consists of the numbers of the window and the overall coefficients. The frequency record describes the same data differently.
Для изменения рисунка включитеJavaScript; расчёт и теория доступны далее.
One local amount template
For the final sequences outside the range, consider the values zero.
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y[n]=\sum_j h[j]x[n-j].
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If x is long N, h is long K, full output is longN+K -1. H07 describes this semantics. x=[1.2.3.4],h=[1,-1] received[1,1,1,1 - 4. For example, y[2]=1x3+(-1)×2=1; last y[4] = 1×0 = 4= -4.
The lab runs a sliding window with the inverted core. When p on each side and stride s the number of floor(((N+2p -K)/s)+1 exits is folded, choose p=K-1=1. In general, the output index i corresponds to the linear number n=i·s -p+K -1.
Experiment.
Go through all the windows, including the beginning and tail. For padding purposes, it must be clearly shown that this is added.0. Increase the string: certain window positions are passed, not averaged automatically.
Easy to be wrong.
Zero Padding is a assumption that a signal can continue to produce boundary effects. The kernel[1] shall retain the reference values of pp0,s1. The symmetric core does not allow a reversal to be observed, so use an unsymmetry fixture to check the convolution/correllation.
x,h=[1,2,3,4],[1,-1]
y=[sum(h[j]*(x[n-j] if 0<=n-j<len(x) else 0)
for j in range(len(h))) for n in range(len(x)+len(h)-1)]
assert y==[1,1,1,1,-4]
The code repeats the operations just taken care of.
Completely checked Python-example Chapter
Available with a separate file; the short piece shown does not replace its implementation.
The pervert corresponds to the index h[n - k].
What changes without a window-turn. How does this question continue?
Python examples of Chapter 11
Academic base